Fixed dependencies of Control Plane to use external_lib sources

185 files changed, 35829 insertions, 0 deletions

diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/address.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/address.cpp
new file mode 100644
index 00000000..c8697ecc
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/address.cpp
@@ -0,0 +1,105 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+#include "address.hpp"
+#include "err.hpp"
+#include "tcp_address.hpp"
+#include "ipc_address.hpp"
+#include "tipc_address.hpp"
+
+#include <string>
+#include <sstream>
+
+zmq::address_t::address_t (
+    const std::string &protocol_, const std::string &address_)
+    : protocol (protocol_),
+      address (address_)
+{
+    memset (&resolved, 0, sizeof resolved);
+}
+
+zmq::address_t::~address_t ()
+{
+    if (protocol == "tcp") {
+        if (resolved.tcp_addr) {
+            delete resolved.tcp_addr;
+            resolved.tcp_addr = 0;
+        }
+    }
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+    else
+    if (protocol == "ipc") {
+        if (resolved.ipc_addr) {
+            delete resolved.ipc_addr;
+            resolved.ipc_addr = 0;
+        }
+    }
+#endif
+#if defined ZMQ_HAVE_TIPC
+    else
+    if (protocol == "tipc") {
+        if (resolved.tipc_addr) {
+            delete resolved.tipc_addr;
+            resolved.tipc_addr = 0;
+        }
+    }
+#endif
+}
+
+int zmq::address_t::to_string (std::string &addr_) const
+{
+    if (protocol == "tcp") {
+        if (resolved.tcp_addr)
+            return resolved.tcp_addr->to_string (addr_);
+    }
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+    else
+    if (protocol == "ipc") {
+        if (resolved.ipc_addr)
+            return resolved.ipc_addr->to_string (addr_);
+    }
+#endif
+#if defined ZMQ_HAVE_TIPC
+    else
+    if (protocol == "tipc") {
+        if (resolved.tipc_addr)
+            return resolved.tipc_addr->to_string (addr_);
+    }
+#endif
+
+    if (!protocol.empty () && !address.empty ()) {
+        std::stringstream s;
+        s << protocol << "://" << address;
+        addr_ = s.str ();
+        return 0;
+    }
+    addr_.clear ();
+    return -1;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/address.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/address.hpp
new file mode 100644
index 00000000..28421f06
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/address.hpp
@@ -0,0 +1,67 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_ADDRESS_HPP_INCLUDED__
+#define __ZMQ_ADDRESS_HPP_INCLUDED__
+
+#include <string>
+
+namespace zmq
+{
+    class tcp_address_t;
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+    class ipc_address_t;
+#endif
+#if defined ZMQ_HAVE_LINUX
+    class tipc_address_t;
+#endif
+    struct address_t {
+        address_t (const std::string &protocol_, const std::string &address_);
+
+        ~address_t ();
+
+        const std::string protocol;
+        const std::string address;
+
+        //  Protocol specific resolved address
+        union {
+            tcp_address_t *tcp_addr;
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+            ipc_address_t *ipc_addr;
+#endif
+#if defined ZMQ_HAVE_LINUX
+            tipc_address_t *tipc_addr;
+#endif
+        } resolved;
+
+        int to_string (std::string &addr_) const;
+    };
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/array.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/array.hpp
new file mode 100644
index 00000000..35e3c405
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/array.hpp
@@ -0,0 +1,163 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_ARRAY_INCLUDED__
+#define __ZMQ_ARRAY_INCLUDED__
+
+#include <vector>
+#include <algorithm>
+
+namespace zmq
+{
+
+    //  Base class for objects stored in the array. If you want to store
+    //  same object in mutliple arrays, each of those arrays has to have
+    //  different ID. The item itself has to be derived from instantiations of
+    //  array_item_t template for all relevant IDs.
+
+    template <int ID = 0> class array_item_t
+    {
+    public:
+
+        inline array_item_t () :
+            array_index (-1)
+        {
+        }
+
+        //  The destructor doesn't have to be virtual. It is mad virtual
+        //  just to keep ICC and code checking tools from complaining.
+        inline virtual ~array_item_t ()
+        {
+        }
+
+        inline void set_array_index (int index_)
+        {
+            array_index = index_;
+        }
+
+        inline int get_array_index ()
+        {
+            return array_index;
+        }
+
+    private:
+
+        int array_index;
+
+        array_item_t (const array_item_t&);
+        const array_item_t &operator = (const array_item_t&);
+    };
+
+    //  Fast array implementation with O(1) access to item, insertion and
+    //  removal. Array stores pointers rather than objects. The objects have
+    //  to be derived from array_item_t<ID> class.
+
+    template <typename T, int ID = 0> class array_t
+    {
+    private:
+
+        typedef array_item_t <ID> item_t;
+
+    public:
+
+        typedef typename std::vector <T*>::size_type size_type;
+
+        inline array_t ()
+        {
+        }
+
+        inline ~array_t ()
+        {
+        }
+
+        inline size_type size ()
+        {
+            return items.size ();
+        }
+
+        inline bool empty ()
+        {
+            return items.empty ();
+        }
+
+        inline T *&operator [] (size_type index_)
+        {
+            return items [index_];
+        }
+
+        inline void push_back (T *item_)
+        {
+            if (item_)
+                ((item_t*) item_)->set_array_index ((int) items.size ());
+            items.push_back (item_);
+        }
+
+        inline void erase (T *item_) {
+            erase (((item_t*) item_)->get_array_index ());
+        }
+
+        inline void erase (size_type index_) {
+            if (items.back ())
+                ((item_t*) items.back ())->set_array_index ((int) index_);
+            items [index_] = items.back ();
+            items.pop_back ();
+        }
+
+        inline void swap (size_type index1_, size_type index2_)
+        {
+            if (items [index1_])
+                ((item_t*) items [index1_])->set_array_index ((int) index2_);
+            if (items [index2_])
+                ((item_t*) items [index2_])->set_array_index ((int) index1_);
+            std::swap (items [index1_], items [index2_]);
+        }
+
+        inline void clear ()
+        {
+            items.clear ();
+        }
+
+        inline size_type index (T *item_)
+        {
+            return (size_type) ((item_t*) item_)->get_array_index ();
+        }
+
+    private:
+
+        typedef std::vector <T*> items_t;
+        items_t items;
+
+        array_t (const array_t&);
+        const array_t &operator = (const array_t&);
+    };
+
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/atomic_counter.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/atomic_counter.hpp
new file mode 100644
index 00000000..44e9ec02
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/atomic_counter.hpp
@@ -0,0 +1,215 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_ATOMIC_COUNTER_HPP_INCLUDED__
+#define __ZMQ_ATOMIC_COUNTER_HPP_INCLUDED__
+
+#include "stdint.hpp"
+#include "platform.hpp"
+
+#if defined ZMQ_FORCE_MUTEXES
+#define ZMQ_ATOMIC_COUNTER_MUTEX
+#elif (defined __i386__ || defined __x86_64__) && defined __GNUC__
+#define ZMQ_ATOMIC_COUNTER_X86
+#elif defined __ARM_ARCH_7A__ && defined __GNUC__
+#define ZMQ_ATOMIC_COUNTER_ARM
+#elif defined ZMQ_HAVE_WINDOWS
+#define ZMQ_ATOMIC_COUNTER_WINDOWS
+#elif (defined ZMQ_HAVE_SOLARIS || defined ZMQ_HAVE_NETBSD)
+#define ZMQ_ATOMIC_COUNTER_ATOMIC_H
+#elif defined __tile__
+#define ZMQ_ATOMIC_COUNTER_TILE
+#else
+#define ZMQ_ATOMIC_COUNTER_MUTEX
+#endif
+
+#if defined ZMQ_ATOMIC_COUNTER_MUTEX
+#include "mutex.hpp"
+#elif defined ZMQ_ATOMIC_COUNTER_WINDOWS
+#include "windows.hpp"
+#elif defined ZMQ_ATOMIC_COUNTER_ATOMIC_H
+#include <atomic.h>
+#elif defined ZMQ_ATOMIC_COUNTER_TILE
+#include <arch/atomic.h>
+#endif
+
+namespace zmq
+{
+
+    //  This class represents an integer that can be incremented/decremented
+    //  in atomic fashion.
+
+    class atomic_counter_t
+    {
+    public:
+
+        typedef uint32_t integer_t;
+
+        inline atomic_counter_t (integer_t value_ = 0) :
+            value (value_)
+        {
+        }
+
+        inline ~atomic_counter_t ()
+        {
+        }
+
+        //  Set counter value (not thread-safe).
+        inline void set (integer_t value_)
+        {
+            value = value_;
+        }
+
+        //  Atomic addition. Returns the old value.
+        inline integer_t add (integer_t increment_)
+        {
+            integer_t old_value;
+
+#if defined ZMQ_ATOMIC_COUNTER_WINDOWS
+            old_value = InterlockedExchangeAdd ((LONG*) &value, increment_);
+#elif defined ZMQ_ATOMIC_COUNTER_ATOMIC_H
+            integer_t new_value = atomic_add_32_nv (&value, increment_);
+            old_value = new_value - increment_;
+#elif defined ZMQ_ATOMIC_COUNTER_TILE
+	    old_value = arch_atomic_add (&value, increment_);
+#elif defined ZMQ_ATOMIC_COUNTER_X86
+            __asm__ volatile (
+                "lock; xadd %0, %1 \n\t"
+                : "=r" (old_value), "=m" (value)
+                : "0" (increment_), "m" (value)
+                : "cc", "memory");
+#elif defined ZMQ_ATOMIC_COUNTER_ARM
+            integer_t flag, tmp;
+            __asm__ volatile (
+                "       dmb     sy\n\t"
+                "1:     ldrex   %0, [%5]\n\t"
+                "       add     %2, %0, %4\n\t"
+                "       strex   %1, %2, [%5]\n\t"
+                "       teq     %1, #0\n\t"
+                "       bne     1b\n\t"
+                "       dmb     sy\n\t"
+                : "=&r"(old_value), "=&r"(flag), "=&r"(tmp), "+Qo"(value)
+                : "Ir"(increment_), "r"(&value)
+                : "cc");
+#elif defined ZMQ_ATOMIC_COUNTER_MUTEX
+            sync.lock ();
+            old_value = value;
+            value += increment_;
+            sync.unlock ();
+#else
+#error atomic_counter is not implemented for this platform
+#endif
+            return old_value;
+        }
+
+        //  Atomic subtraction. Returns false if the counter drops to zero.
+        inline bool sub (integer_t decrement)
+        {
+#if defined ZMQ_ATOMIC_COUNTER_WINDOWS
+            LONG delta = - ((LONG) decrement);
+            integer_t old = InterlockedExchangeAdd ((LONG*) &value, delta);
+            return old - decrement != 0;
+#elif defined ZMQ_ATOMIC_COUNTER_ATOMIC_H
+            int32_t delta = - ((int32_t) decrement);
+            integer_t nv = atomic_add_32_nv (&value, delta);
+            return nv != 0;
+#elif defined ZMQ_ATOMIC_COUNTER_TILE
+            int32_t delta = - ((int32_t) decrement);
+            integer_t nv = arch_atomic_add (&value, delta);
+            return nv != 0;
+#elif defined ZMQ_ATOMIC_COUNTER_X86
+            integer_t oldval = -decrement;
+            volatile integer_t *val = &value;
+            __asm__ volatile ("lock; xaddl %0,%1"
+                : "=r" (oldval), "=m" (*val)
+                : "0" (oldval), "m" (*val)
+                : "cc", "memory");
+            return oldval != decrement;
+#elif defined ZMQ_ATOMIC_COUNTER_ARM
+            integer_t old_value, flag, tmp;
+            __asm__ volatile (
+                "       dmb     sy\n\t"
+                "1:     ldrex   %0, [%5]\n\t"
+                "       sub     %2, %0, %4\n\t"
+                "       strex   %1, %2, [%5]\n\t"
+                "       teq     %1, #0\n\t"
+                "       bne     1b\n\t"
+                "       dmb     sy\n\t"
+                : "=&r"(old_value), "=&r"(flag), "=&r"(tmp), "+Qo"(value)
+                : "Ir"(decrement), "r"(&value)
+                : "cc");
+            return old_value - decrement != 0;
+#elif defined ZMQ_ATOMIC_COUNTER_MUTEX
+            sync.lock ();
+            value -= decrement;
+            bool result = value ? true : false;
+            sync.unlock ();
+            return result;
+#else
+#error atomic_counter is not implemented for this platform
+#endif
+        }
+
+        inline integer_t get ()
+        {
+            return value;
+        }
+
+    private:
+
+        volatile integer_t value;
+#if defined ZMQ_ATOMIC_COUNTER_MUTEX
+        mutex_t sync;
+#endif
+
+        atomic_counter_t (const atomic_counter_t&);
+        const atomic_counter_t& operator = (const atomic_counter_t&);
+    };
+
+}
+
+//  Remove macros local to this file.
+#if defined ZMQ_ATOMIC_COUNTER_WINDOWS
+#undef ZMQ_ATOMIC_COUNTER_WINDOWS
+#endif
+#if defined ZMQ_ATOMIC_COUNTER_ATOMIC_H
+#undef ZMQ_ATOMIC_COUNTER_ATOMIC_H
+#endif
+#if defined ZMQ_ATOMIC_COUNTER_X86
+#undef ZMQ_ATOMIC_COUNTER_X86
+#endif
+#if defined ZMQ_ATOMIC_COUNTER_ARM
+#undef ZMQ_ATOMIC_COUNTER_ARM
+#endif
+#if defined ZMQ_ATOMIC_COUNTER_MUTEX
+#undef ZMQ_ATOMIC_COUNTER_MUTEX
+#endif
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/atomic_ptr.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/atomic_ptr.hpp
new file mode 100644
index 00000000..0e981821
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/atomic_ptr.hpp
@@ -0,0 +1,212 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_ATOMIC_PTR_HPP_INCLUDED__
+#define __ZMQ_ATOMIC_PTR_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if defined ZMQ_FORCE_MUTEXES
+#define ZMQ_ATOMIC_PTR_MUTEX
+#elif (defined __i386__ || defined __x86_64__) && defined __GNUC__
+#define ZMQ_ATOMIC_PTR_X86
+#elif defined __ARM_ARCH_7A__ && defined __GNUC__
+#define ZMQ_ATOMIC_PTR_ARM
+#elif defined __tile__
+#define ZMQ_ATOMIC_PTR_TILE
+#elif defined ZMQ_HAVE_WINDOWS
+#define ZMQ_ATOMIC_PTR_WINDOWS
+#elif (defined ZMQ_HAVE_SOLARIS || defined ZMQ_HAVE_NETBSD)
+#define ZMQ_ATOMIC_PTR_ATOMIC_H
+#else
+#define ZMQ_ATOMIC_PTR_MUTEX
+#endif
+
+#if defined ZMQ_ATOMIC_PTR_MUTEX
+#include "mutex.hpp"
+#elif defined ZMQ_ATOMIC_PTR_WINDOWS
+#include "windows.hpp"
+#elif defined ZMQ_ATOMIC_PTR_ATOMIC_H
+#include <atomic.h>
+#elif defined ZMQ_ATOMIC_PTR_TILE
+#include <arch/atomic.h>
+#endif
+
+namespace zmq
+{
+
+    //  This class encapsulates several atomic operations on pointers.
+
+    template <typename T> class atomic_ptr_t
+    {
+    public:
+
+        //  Initialise atomic pointer
+        inline atomic_ptr_t ()
+        {
+            ptr = NULL;
+        }
+
+        //  Destroy atomic pointer
+        inline ~atomic_ptr_t ()
+        {
+        }
+
+        //  Set value of atomic pointer in a non-threadsafe way
+        //  Use this function only when you are sure that at most one
+        //  thread is accessing the pointer at the moment.
+        inline void set (T *ptr_)
+        {
+            this->ptr = ptr_;
+        }
+
+        //  Perform atomic 'exchange pointers' operation. Pointer is set
+        //  to the 'val' value. Old value is returned.
+        inline T *xchg (T *val_)
+        {
+#if defined ZMQ_ATOMIC_PTR_WINDOWS
+            return (T*) InterlockedExchangePointer ((PVOID*) &ptr, val_);
+#elif defined ZMQ_ATOMIC_PTR_ATOMIC_H
+            return (T*) atomic_swap_ptr (&ptr, val_);
+#elif defined ZMQ_ATOMIC_PTR_TILE
+            return (T*) arch_atomic_exchange (&ptr, val_);
+#elif defined ZMQ_ATOMIC_PTR_X86
+            T *old;
+            __asm__ volatile (
+                "lock; xchg %0, %2"
+                : "=r" (old), "=m" (ptr)
+                : "m" (ptr), "0" (val_));
+            return old;
+#elif defined ZMQ_ATOMIC_PTR_ARM
+            T* old;
+            unsigned int flag;
+            __asm__ volatile (
+                "       dmb     sy\n\t"
+                "1:     ldrex   %1, [%3]\n\t"
+                "       strex   %0, %4, [%3]\n\t"
+                "       teq     %0, #0\n\t"
+                "       bne     1b\n\t"
+                "       dmb     sy\n\t"
+                : "=&r"(flag), "=&r"(old), "+Qo"(ptr)
+                : "r"(&ptr), "r"(val_)
+                : "cc");
+            return old;
+#elif defined ZMQ_ATOMIC_PTR_MUTEX
+            sync.lock ();
+            T *old = (T*) ptr;
+            ptr = val_;
+            sync.unlock ();
+            return old;
+#else
+#error atomic_ptr is not implemented for this platform
+#endif
+        }
+
+        //  Perform atomic 'compare and swap' operation on the pointer.
+        //  The pointer is compared to 'cmp' argument and if they are
+        //  equal, its value is set to 'val'. Old value of the pointer
+        //  is returned.
+        inline T *cas (T *cmp_, T *val_)
+        {
+#if defined ZMQ_ATOMIC_PTR_WINDOWS
+            return (T*) InterlockedCompareExchangePointer (
+                (volatile PVOID*) &ptr, val_, cmp_);
+#elif defined ZMQ_ATOMIC_PTR_ATOMIC_H
+            return (T*) atomic_cas_ptr (&ptr, cmp_, val_);
+#elif defined ZMQ_ATOMIC_PTR_TILE
+            return (T*) arch_atomic_val_compare_and_exchange (&ptr, cmp_, val_);
+#elif defined ZMQ_ATOMIC_PTR_X86
+            T *old;
+            __asm__ volatile (
+                "lock; cmpxchg %2, %3"
+                : "=a" (old), "=m" (ptr)
+                : "r" (val_), "m" (ptr), "0" (cmp_)
+                : "cc");
+            return old;
+#elif defined ZMQ_ATOMIC_PTR_ARM
+            T *old;
+            unsigned int flag;
+            __asm__ volatile (
+                "       dmb     sy\n\t"
+                "1:     ldrex   %1, [%3]\n\t"
+                "       mov     %0, #0\n\t"
+                "       teq     %1, %4\n\t"
+                "       it      eq\n\t"
+                "       strexeq %0, %5, [%3]\n\t"
+                "       teq     %0, #0\n\t"
+                "       bne     1b\n\t"
+                "       dmb     sy\n\t"
+                : "=&r"(flag), "=&r"(old), "+Qo"(ptr)
+                : "r"(&ptr), "r"(cmp_), "r"(val_)
+                : "cc");
+            return old;
+#elif defined ZMQ_ATOMIC_PTR_MUTEX
+            sync.lock ();
+            T *old = (T*) ptr;
+            if (ptr == cmp_)
+                ptr = val_;
+            sync.unlock ();
+            return old;
+#else
+#error atomic_ptr is not implemented for this platform
+#endif
+        }
+
+    private:
+
+        volatile T *ptr;
+#if defined ZMQ_ATOMIC_PTR_MUTEX
+        mutex_t sync;
+#endif
+
+        atomic_ptr_t (const atomic_ptr_t&);
+        const atomic_ptr_t &operator = (const atomic_ptr_t&);
+    };
+
+}
+
+//  Remove macros local to this file.
+#if defined ZMQ_ATOMIC_PTR_WINDOWS
+#undef ZMQ_ATOMIC_PTR_WINDOWS
+#endif
+#if defined ZMQ_ATOMIC_PTR_ATOMIC_H
+#undef ZMQ_ATOMIC_PTR_ATOMIC_H
+#endif
+#if defined ZMQ_ATOMIC_PTR_X86
+#undef ZMQ_ATOMIC_PTR_X86
+#endif
+#if defined ZMQ_ATOMIC_PTR_ARM
+#undef ZMQ_ATOMIC_PTR_ARM
+#endif
+#if defined ZMQ_ATOMIC_PTR_MUTEX
+#undef ZMQ_ATOMIC_PTR_MUTEX
+#endif
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/blob.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/blob.hpp
new file mode 100644
index 00000000..689b60b2
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/blob.hpp
@@ -0,0 +1,139 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_BLOB_HPP_INCLUDED__
+#define __ZMQ_BLOB_HPP_INCLUDED__
+
+#include <string>
+#include <string.h>
+
+// Borrowed from id3lib_strings.h:
+// They seem to be doing something for MSC, but since I only have gcc, I'll just do that
+// Assuming this is uneccessary on GCC 4
+// #if (defined(__GNUC__) && (__GNUC__ >= 3) || (defined(_MSC_VER) && _MSC_VER > 1000))
+#if (defined(__GNUC__) && (__GNUC__ >= 3) && (__GNUC__ <= 4))
+namespace std
+{
+  template<>
+    struct char_traits<unsigned char>
+    {
+      typedef unsigned char char_type;
+      // Unsigned as wint_t in unsigned.
+      typedef unsigned long  	int_type;
+      typedef streampos 	pos_type;
+      typedef streamoff 	off_type;
+      typedef mbstate_t 	state_type;
+
+      static void
+      assign(char_type& __c1, const char_type& __c2)
+      { __c1 = __c2; }
+
+      static bool
+      eq(const char_type& __c1, const char_type& __c2)
+      { return __c1 == __c2; }
+
+      static bool
+      lt(const char_type& __c1, const char_type& __c2)
+      { return __c1 < __c2; }
+
+      static int
+      compare(const char_type* __s1, const char_type* __s2, size_t __n)
+      {
+        for (size_t __i = 0; __i < __n; ++__i)
+          if (!eq(__s1[__i], __s2[__i]))
+            return lt(__s1[__i], __s2[__i]) ? -1 : 1;
+        return 0;
+      }
+
+      static size_t
+      length(const char_type* __s)
+      {
+        const char_type* __p = __s;
+          while (__p)
+            ++__p;
+        return (__p - __s);
+      }
+
+      static const char_type*
+      find(const char_type* __s, size_t __n, const char_type& __a)
+      {
+        for (const char_type* __p = __s; size_t(__p - __s) < __n; ++__p)
+          if (*__p == __a) return __p;
+        return 0;
+      }
+
+      static char_type*
+      move(char_type* __s1, const char_type* __s2, size_t __n)
+      { return (char_type*) memmove(__s1, __s2, __n * sizeof(char_type)); }
+
+      static char_type*
+      copy(char_type* __s1, const char_type* __s2, size_t __n)
+      { return (char_type*) memcpy(__s1, __s2, __n * sizeof(char_type)); }
+
+      static char_type*
+      assign(char_type* __s, size_t __n, char_type __a)
+      {
+        for (char_type* __p = __s; __p < __s + __n; ++__p)
+          assign(*__p, __a);
+        return __s;
+      }
+
+      static char_type
+      to_char_type(const int_type& __c)
+      { return char_type(__c); }
+
+      static int_type
+      to_int_type(const char_type& __c) { return int_type(__c); }
+
+      static bool
+      eq_int_type(const int_type& __c1, const int_type& __c2)
+      { return __c1 == __c2; }
+
+      static int_type
+      eof() { return static_cast<int_type>(-1); }
+
+      static int_type
+      not_eof(const int_type& __c)
+      { return eq_int_type(__c, eof()) ? int_type(0) : __c; }
+    };
+
+} // namespace std
+#endif // GCC version 3
+
+
+namespace zmq
+{
+
+    //  Object to hold dynamically allocated opaque binary data.
+    typedef std::basic_string <unsigned char> blob_t;
+
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/clock.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/clock.cpp
new file mode 100644
index 00000000..dab08793
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/clock.cpp
@@ -0,0 +1,210 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "clock.hpp"
+#include "platform.hpp"
+#include "likely.hpp"
+#include "config.hpp"
+#include "err.hpp"
+#include "mutex.hpp"
+
+#include <stddef.h>
+
+#if defined _MSC_VER
+#if defined _WIN32_WCE
+#include <cmnintrin.h>
+#else
+#include <intrin.h>
+#endif
+#endif
+
+#if !defined ZMQ_HAVE_WINDOWS
+#include <sys/time.h>
+#endif
+
+#if defined HAVE_CLOCK_GETTIME || defined HAVE_GETHRTIME
+#include <time.h>
+#endif
+
+#ifdef ZMQ_HAVE_WINDOWS
+typedef ULONGLONG (*f_compatible_get_tick_count64)();
+
+static zmq::mutex_t compatible_get_tick_count64_mutex;
+
+ULONGLONG compatible_get_tick_count64()
+{
+  compatible_get_tick_count64_mutex.lock();
+  static DWORD s_wrap = 0;
+  static DWORD s_last_tick = 0;
+  const DWORD current_tick = ::GetTickCount();
+  if (current_tick < s_last_tick)
+    ++s_wrap;
+
+  s_last_tick = current_tick;
+  const ULONGLONG result = (static_cast<ULONGLONG>(s_wrap) << 32) + static_cast<ULONGLONG>(current_tick);
+  compatible_get_tick_count64_mutex.unlock();
+  return result;
+}
+
+f_compatible_get_tick_count64 init_compatible_get_tick_count64()
+{
+  f_compatible_get_tick_count64 func = NULL;
+  HMODULE module = ::LoadLibraryA("Kernel32.dll");
+  if (module != NULL)
+    func = reinterpret_cast<f_compatible_get_tick_count64>(::GetProcAddress(module, "GetTickCount64"));
+
+  if (func == NULL)
+    func = compatible_get_tick_count64;
+
+  return func;
+}
+
+static f_compatible_get_tick_count64 my_get_tick_count64 = init_compatible_get_tick_count64();
+#endif
+
+zmq::clock_t::clock_t () :
+    last_tsc (rdtsc ()),
+#ifdef ZMQ_HAVE_WINDOWS
+    last_time (static_cast<uint64_t>((*my_get_tick_count64)()))
+#else
+    last_time (now_us () / 1000)
+#endif
+{
+}
+
+zmq::clock_t::~clock_t ()
+{
+}
+
+uint64_t zmq::clock_t::now_us ()
+{
+#if defined ZMQ_HAVE_WINDOWS
+
+    //  Get the high resolution counter's accuracy.
+    LARGE_INTEGER ticksPerSecond;
+    QueryPerformanceFrequency (&ticksPerSecond);
+
+    //  What time is it?
+    LARGE_INTEGER tick;
+    QueryPerformanceCounter (&tick);
+
+    //  Convert the tick number into the number of seconds
+    //  since the system was started.
+    double ticks_div = ticksPerSecond.QuadPart / 1000000.0;
+    return (uint64_t) (tick.QuadPart / ticks_div);
+
+#elif defined HAVE_CLOCK_GETTIME && defined CLOCK_MONOTONIC
+
+    //  Use POSIX clock_gettime function to get precise monotonic time.
+    struct timespec tv;
+    int rc = clock_gettime (CLOCK_MONOTONIC, &tv);
+		// Fix case where system has clock_gettime but CLOCK_MONOTONIC is not supported.
+		// This should be a configuration check, but I looked into it and writing an
+		// AC_FUNC_CLOCK_MONOTONIC seems beyond my powers.
+		if( rc != 0) {
+			//  Use POSIX gettimeofday function to get precise time.
+			struct timeval tv;
+			int rc = gettimeofday (&tv, NULL);
+			errno_assert (rc == 0);
+			return (tv.tv_sec * (uint64_t) 1000000 + tv.tv_usec);
+		}
+    return (tv.tv_sec * (uint64_t) 1000000 + tv.tv_nsec / 1000);
+
+#elif defined HAVE_GETHRTIME
+
+    return (gethrtime () / 1000);
+
+#else
+
+    //  Use POSIX gettimeofday function to get precise time.
+    struct timeval tv;
+    int rc = gettimeofday (&tv, NULL);
+    errno_assert (rc == 0);
+    return (tv.tv_sec * (uint64_t) 1000000 + tv.tv_usec);
+
+#endif
+}
+
+uint64_t zmq::clock_t::now_ms ()
+{
+    uint64_t tsc = rdtsc ();
+
+    //  If TSC is not supported, get precise time and chop off the microseconds.
+    if (!tsc)
+    {
+#ifdef ZMQ_HAVE_WINDOWS
+        // Under Windows, now_us is not so reliable since QueryPerformanceCounter
+        // does not guarantee that it will use a hardware that offers a monotonic timer.
+        // So, lets use GetTickCount when GetTickCount64 is not available with an workaround
+        // to its 32 bit limitation.
+        return static_cast<uint64_t>((*my_get_tick_count64)());
+#else
+        return now_us () / 1000;
+#endif
+    }
+
+    //  If TSC haven't jumped back (in case of migration to a different
+    //  CPU core) and if not too much time elapsed since last measurement,
+    //  we can return cached time value.
+    if (likely (tsc - last_tsc <= (clock_precision / 2) && tsc >= last_tsc))
+        return last_time;
+
+    last_tsc = tsc;
+#ifdef ZMQ_HAVE_WINDOWS
+    last_time = static_cast<uint64_t>((*my_get_tick_count64)());
+#else
+    last_time = now_us () / 1000;
+#endif
+    return last_time;
+}
+
+uint64_t zmq::clock_t::rdtsc ()
+{
+#if (defined _MSC_VER && (defined _M_IX86 || defined _M_X64))
+    return __rdtsc ();
+#elif (defined __GNUC__ && (defined __i386__ || defined __x86_64__))
+    uint32_t low, high;
+    __asm__ volatile ("rdtsc" : "=a" (low), "=d" (high));
+    return (uint64_t) high << 32 | low;
+#elif (defined __SUNPRO_CC && (__SUNPRO_CC >= 0x5100) && (defined __i386 || \
+    defined __amd64 || defined __x86_64))
+    union {
+        uint64_t u64val;
+        uint32_t u32val [2];
+    } tsc;
+    asm("rdtsc" : "=a" (tsc.u32val [0]), "=d" (tsc.u32val [1]));
+    return tsc.u64val;
+#elif defined(__s390__)
+    uint64_t tsc;
+    asm("\tstck\t%0\n" : "=Q" (tsc) : : "cc");
+    return(tsc);
+#else
+    return 0;
+#endif
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/clock.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/clock.hpp
new file mode 100644
index 00000000..f56f618e
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/clock.hpp
@@ -0,0 +1,69 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_CLOCK_HPP_INCLUDED__
+#define __ZMQ_CLOCK_HPP_INCLUDED__
+
+#include "stdint.hpp"
+
+namespace zmq
+{
+
+    class clock_t
+    {
+    public:
+
+        clock_t ();
+        ~clock_t ();
+
+        //  CPU's timestamp counter. Returns 0 if it's not available.
+        static uint64_t rdtsc ();
+
+        //  High precision timestamp.
+        static uint64_t now_us ();
+
+        //  Low precision timestamp. In tight loops generating it can be
+        //  10 to 100 times faster than the high precision timestamp.
+        uint64_t now_ms ();
+
+    private:
+
+        //  TSC timestamp of when last time measurement was made.
+        uint64_t last_tsc;
+
+        //  Physical time corresponding to the TSC above (in milliseconds).
+        uint64_t last_time;
+
+        clock_t (const clock_t&);
+        const clock_t &operator = (const clock_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/command.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/command.hpp
new file mode 100644
index 00000000..a10d8ec1
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/command.hpp
@@ -0,0 +1,163 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_COMMAND_HPP_INCLUDED__
+#define __ZMQ_COMMAND_HPP_INCLUDED__
+
+#include "stdint.hpp"
+
+namespace zmq
+{
+
+    class object_t;
+    class own_t;
+    struct i_engine;
+    class pipe_t;
+    class socket_base_t;
+
+    //  This structure defines the commands that can be sent between threads.
+
+    struct command_t
+    {
+        //  Object to process the command.
+        zmq::object_t *destination;
+
+        enum type_t
+        {
+            stop,
+            plug,
+            own,
+            attach,
+            bind,
+            activate_read,
+            activate_write,
+            hiccup,
+            pipe_term,
+            pipe_term_ack,
+            term_req,
+            term,
+            term_ack,
+            reap,
+            reaped,
+            inproc_connected,
+            done
+        } type;
+
+        union {
+
+            //  Sent to I/O thread to let it know that it should
+            //  terminate itself.
+            struct {
+            } stop;
+
+            //  Sent to I/O object to make it register with its I/O thread.
+            struct {
+            } plug;
+
+            //  Sent to socket to let it know about the newly created object.
+            struct {
+                zmq::own_t *object;
+            } own;
+
+            //  Attach the engine to the session. If engine is NULL, it informs
+            //  session that the connection have failed.
+            struct {
+                struct i_engine *engine;
+            } attach;
+
+            //  Sent from session to socket to establish pipe(s) between them.
+            //  Caller have used inc_seqnum beforehand sending the command.
+            struct {
+                zmq::pipe_t *pipe;
+            } bind;
+
+            //  Sent by pipe writer to inform dormant pipe reader that there
+            //  are messages in the pipe.
+            struct {
+            } activate_read;
+
+            //  Sent by pipe reader to inform pipe writer about how many
+            //  messages it has read so far.
+            struct {
+                uint64_t msgs_read;
+            } activate_write;
+
+            //  Sent by pipe reader to writer after creating a new inpipe.
+            //  The parameter is actually of type pipe_t::upipe_t, however,
+            //  its definition is private so we'll have to do with void*.
+            struct {
+                void *pipe;
+            } hiccup;
+
+            //  Sent by pipe reader to pipe writer to ask it to terminate
+            //  its end of the pipe.
+            struct {
+            } pipe_term;
+
+            //  Pipe writer acknowledges pipe_term command.
+            struct {
+            } pipe_term_ack;
+
+            //  Sent by I/O object ot the socket to request the shutdown of
+            //  the I/O object.
+            struct {
+                zmq::own_t *object;
+            } term_req;
+
+            //  Sent by socket to I/O object to start its shutdown.
+            struct {
+                int linger;
+            } term;
+
+            //  Sent by I/O object to the socket to acknowledge it has
+            //  shut down.
+            struct {
+            } term_ack;
+
+            //  Transfers the ownership of the closed socket
+            //  to the reaper thread.
+            struct {
+                zmq::socket_base_t *socket;
+            } reap;
+
+            //  Closed socket notifies the reaper that it's already deallocated.
+            struct {
+            } reaped;
+
+            //  Sent by reaper thread to the term thread when all the sockets
+            //  are successfully deallocated.
+            struct {
+            } done;
+
+        } args;
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/config.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/config.hpp
new file mode 100644
index 00000000..b483c469
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/config.hpp
@@ -0,0 +1,97 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_CONFIG_HPP_INCLUDED__
+#define __ZMQ_CONFIG_HPP_INCLUDED__
+
+namespace zmq
+{
+
+    //  Compile-time settings.
+
+    enum
+    {
+        //  Number of new messages in message pipe needed to trigger new memory
+        //  allocation. Setting this parameter to 256 decreases the impact of
+        //  memory allocation by approximately 99.6%
+        message_pipe_granularity = 256,
+
+        //  Commands in pipe per allocation event.
+        command_pipe_granularity = 16,
+
+        //  Determines how often does socket poll for new commands when it
+        //  still has unprocessed messages to handle. Thus, if it is set to 100,
+        //  socket will process 100 inbound messages before doing the poll.
+        //  If there are no unprocessed messages available, poll is done
+        //  immediately. Decreasing the value trades overall latency for more
+        //  real-time behaviour (less latency peaks).
+        inbound_poll_rate = 100,
+
+        //  Maximal batching size for engines with receiving functionality.
+        //  So, if there are 10 messages that fit into the batch size, all of
+        //  them may be read by a single 'recv' system call, thus avoiding
+        //  unnecessary network stack traversals.
+        in_batch_size = 8192,
+
+        //  Maximal batching size for engines with sending functionality.
+        //  So, if there are 10 messages that fit into the batch size, all of
+        //  them may be written by a single 'send' system call, thus avoiding
+        //  unnecessary network stack traversals.
+        out_batch_size = 8192,
+
+        //  Maximal delta between high and low watermark.
+        max_wm_delta = 1024,
+
+        //  Maximum number of events the I/O thread can process in one go.
+        max_io_events = 256,
+
+        //  Maximal delay to process command in API thread (in CPU ticks).
+        //  3,000,000 ticks equals to 1 - 2 milliseconds on current CPUs.
+        //  Note that delay is only applied when there is continuous stream of
+        //  messages to process. If not so, commands are processed immediately.
+        max_command_delay = 3000000,
+
+        //  Low-precision clock precision in CPU ticks. 1ms. Value of 1000000
+        //  should be OK for CPU frequencies above 1GHz. If should work
+        //  reasonably well for CPU frequencies above 500MHz. For lower CPU
+        //  frequencies you may consider lowering this value to get best
+        //  possible latencies.
+        clock_precision = 1000000,
+
+        //  Maximum transport data unit size for PGM (TPDU).
+        pgm_max_tpdu = 1500,
+
+        //  On some OSes the signaler has to be emulated using a TCP
+        //  connection. In such cases following port is used.
+        signaler_port = 5905
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ctx.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ctx.cpp
new file mode 100644
index 00000000..0dd3cc48
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ctx.cpp
@@ -0,0 +1,567 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <unistd.h>
+#endif
+
+#include <limits>
+#include <new>
+#include <string.h>
+
+#include "ctx.hpp"
+#include "socket_base.hpp"
+#include "io_thread.hpp"
+#include "reaper.hpp"
+#include "pipe.hpp"
+#include "err.hpp"
+#include "msg.hpp"
+
+#ifdef HAVE_LIBSODIUM
+#ifdef HAVE_TWEETNACL
+#include "randombytes.h"
+#else
+#include "sodium.h"
+#endif
+#endif
+
+#define ZMQ_CTX_TAG_VALUE_GOOD 0xabadcafe
+#define ZMQ_CTX_TAG_VALUE_BAD  0xdeadbeef
+
+int clipped_maxsocket(int max_requested)
+{
+    if (max_requested >= zmq::poller_t::max_fds () && zmq::poller_t::max_fds () != -1)
+        // -1 because we need room for the reaper mailbox.
+        max_requested = zmq::poller_t::max_fds () - 1;
+
+    return max_requested;
+}
+
+zmq::ctx_t::ctx_t () :
+    tag (ZMQ_CTX_TAG_VALUE_GOOD),
+    starting (true),
+    terminating (false),
+    reaper (NULL),
+    slot_count (0),
+    slots (NULL),
+    max_sockets (clipped_maxsocket (ZMQ_MAX_SOCKETS_DFLT)),
+    io_thread_count (ZMQ_IO_THREADS_DFLT),
+    ipv6 (false),
+    thread_priority (ZMQ_THREAD_PRIORITY_DFLT),
+    thread_sched_policy (ZMQ_THREAD_SCHED_POLICY_DFLT)
+{
+#ifdef HAVE_FORK
+    pid = getpid();
+#endif
+}
+
+bool zmq::ctx_t::check_tag ()
+{
+    return tag == ZMQ_CTX_TAG_VALUE_GOOD;
+}
+
+zmq::ctx_t::~ctx_t ()
+{
+    //  Check that there are no remaining sockets.
+    zmq_assert (sockets.empty ());
+
+    //  Ask I/O threads to terminate. If stop signal wasn't sent to I/O
+    //  thread subsequent invocation of destructor would hang-up.
+    for (io_threads_t::size_type i = 0; i != io_threads.size (); i++)
+        io_threads [i]->stop ();
+
+    //  Wait till I/O threads actually terminate.
+    for (io_threads_t::size_type i = 0; i != io_threads.size (); i++)
+        delete io_threads [i];
+
+    //  Deallocate the reaper thread object.
+    delete reaper;
+
+    //  Deallocate the array of mailboxes. No special work is
+    //  needed as mailboxes themselves were deallocated with their
+    //  corresponding io_thread/socket objects.
+    free (slots);
+
+    //  If we've done any Curve encryption, we may have a file handle
+    //  to /dev/urandom open that needs to be cleaned up.
+#ifdef HAVE_LIBSODIUM
+    randombytes_close();
+#endif
+
+    //  Remove the tag, so that the object is considered dead.
+    tag = ZMQ_CTX_TAG_VALUE_BAD;
+}
+
+int zmq::ctx_t::terminate ()
+{
+    // Connect up any pending inproc connections, otherwise we will hang
+    pending_connections_t copy = pending_connections;
+    for (pending_connections_t::iterator p = copy.begin (); p != copy.end (); ++p) {
+        zmq::socket_base_t *s = create_socket (ZMQ_PAIR);
+        s->bind (p->first.c_str ());
+        s->close ();
+    }
+
+    slot_sync.lock ();
+    if (!starting) {
+
+#ifdef HAVE_FORK
+        if (pid != getpid ()) {
+            // we are a forked child process. Close all file descriptors
+            // inherited from the parent.
+            for (sockets_t::size_type i = 0; i != sockets.size (); i++)
+                sockets [i]->get_mailbox ()->forked ();
+
+            term_mailbox.forked ();
+        }
+#endif
+
+        //  Check whether termination was already underway, but interrupted and now
+        //  restarted.
+        bool restarted = terminating;
+        terminating = true;
+
+        //  First attempt to terminate the context.
+        if (!restarted) {
+            //  First send stop command to sockets so that any blocking calls
+            //  can be interrupted. If there are no sockets we can ask reaper
+            //  thread to stop.
+            for (sockets_t::size_type i = 0; i != sockets.size (); i++)
+                sockets [i]->stop ();
+            if (sockets.empty ())
+                reaper->stop ();
+        }
+        slot_sync.unlock();
+
+        //  Wait till reaper thread closes all the sockets.
+        command_t cmd;
+        int rc = term_mailbox.recv (&cmd, -1);
+        if (rc == -1 && errno == EINTR)
+            return -1;
+        errno_assert (rc == 0);
+        zmq_assert (cmd.type == command_t::done);
+        slot_sync.lock ();
+        zmq_assert (sockets.empty ());
+    }
+    slot_sync.unlock ();
+
+    //  Deallocate the resources.
+    delete this;
+
+    return 0;
+}
+
+int zmq::ctx_t::shutdown ()
+{
+    slot_sync.lock ();
+    if (!starting && !terminating) {
+        terminating = true;
+
+        //  Send stop command to sockets so that any blocking calls
+        //  can be interrupted. If there are no sockets we can ask reaper
+        //  thread to stop.
+        for (sockets_t::size_type i = 0; i != sockets.size (); i++)
+            sockets [i]->stop ();
+        if (sockets.empty ())
+            reaper->stop ();
+    }
+    slot_sync.unlock ();
+
+    return 0;
+}
+
+int zmq::ctx_t::set (int option_, int optval_)
+{
+    int rc = 0;
+    if (option_ == ZMQ_MAX_SOCKETS
+    &&  optval_ >= 1 && optval_ == clipped_maxsocket (optval_)) {
+        opt_sync.lock ();
+        max_sockets = optval_;
+        opt_sync.unlock ();
+    }
+    else
+    if (option_ == ZMQ_IO_THREADS && optval_ >= 0) {
+        opt_sync.lock ();
+        io_thread_count = optval_;
+        opt_sync.unlock ();
+    }
+    else
+    if (option_ == ZMQ_IPV6 && optval_ >= 0) {
+        opt_sync.lock ();
+        ipv6 = (optval_ != 0);
+        opt_sync.unlock ();
+    }
+    else
+    if (option_ == ZMQ_THREAD_PRIORITY && optval_ >= 0) {
+        opt_sync.lock();
+        thread_priority = optval_;
+        opt_sync.unlock();
+    }
+    else
+    if (option_ == ZMQ_THREAD_SCHED_POLICY && optval_ >= 0) {
+        opt_sync.lock();
+        thread_sched_policy = optval_;
+        opt_sync.unlock();
+    }
+    else {
+        errno = EINVAL;
+        rc = -1;
+    }
+    return rc;
+}
+
+int zmq::ctx_t::get (int option_)
+{
+    int rc = 0;
+    if (option_ == ZMQ_MAX_SOCKETS)
+        rc = max_sockets;
+    else
+    if (option_ == ZMQ_SOCKET_LIMIT)
+        rc = clipped_maxsocket (65535);
+    else
+    if (option_ == ZMQ_IO_THREADS)
+        rc = io_thread_count;
+    else
+    if (option_ == ZMQ_IPV6)
+        rc = ipv6;
+    else {
+        errno = EINVAL;
+        rc = -1;
+    }
+    return rc;
+}
+
+zmq::socket_base_t *zmq::ctx_t::create_socket (int type_)
+{
+    slot_sync.lock ();
+    if (unlikely (starting)) {
+
+        starting = false;
+        //  Initialise the array of mailboxes. Additional three slots are for
+        //  zmq_ctx_term thread and reaper thread.
+        opt_sync.lock ();
+        int mazmq = max_sockets;
+        int ios = io_thread_count;
+        opt_sync.unlock ();
+        slot_count = mazmq + ios + 2;
+        slots = (mailbox_t **) malloc (sizeof (mailbox_t*) * slot_count);
+        alloc_assert (slots);
+
+        //  Initialise the infrastructure for zmq_ctx_term thread.
+        slots [term_tid] = &term_mailbox;
+
+        //  Create the reaper thread.
+        reaper = new (std::nothrow) reaper_t (this, reaper_tid);
+        alloc_assert (reaper);
+        slots [reaper_tid] = reaper->get_mailbox ();
+        reaper->start ();
+
+        //  Create I/O thread objects and launch them.
+        for (int i = 2; i != ios + 2; i++) {
+            io_thread_t *io_thread = new (std::nothrow) io_thread_t (this, i);
+            alloc_assert (io_thread);
+            io_threads.push_back (io_thread);
+            slots [i] = io_thread->get_mailbox ();
+            io_thread->start ();
+        }
+
+        //  In the unused part of the slot array, create a list of empty slots.
+        for (int32_t i = (int32_t) slot_count - 1;
+              i >= (int32_t) ios + 2; i--) {
+            empty_slots.push_back (i);
+            slots [i] = NULL;
+        }
+    }
+
+    //  Once zmq_ctx_term() was called, we can't create new sockets.
+    if (terminating) {
+        slot_sync.unlock ();
+        errno = ETERM;
+        return NULL;
+    }
+
+    //  If max_sockets limit was reached, return error.
+    if (empty_slots.empty ()) {
+        slot_sync.unlock ();
+        errno = EMFILE;
+        return NULL;
+    }
+
+    //  Choose a slot for the socket.
+    uint32_t slot = empty_slots.back ();
+    empty_slots.pop_back ();
+
+    //  Generate new unique socket ID.
+    int sid = ((int) max_socket_id.add (1)) + 1;
+
+    //  Create the socket and register its mailbox.
+    socket_base_t *s = socket_base_t::create (type_, this, slot, sid);
+    if (!s) {
+        empty_slots.push_back (slot);
+        slot_sync.unlock ();
+        return NULL;
+    }
+    sockets.push_back (s);
+    slots [slot] = s->get_mailbox ();
+
+    slot_sync.unlock ();
+    return s;
+}
+
+void zmq::ctx_t::destroy_socket (class socket_base_t *socket_)
+{
+    slot_sync.lock ();
+
+    //  Free the associated thread slot.
+    uint32_t tid = socket_->get_tid ();
+    empty_slots.push_back (tid);
+    slots [tid] = NULL;
+
+    //  Remove the socket from the list of sockets.
+    sockets.erase (socket_);
+
+    //  If zmq_ctx_term() was already called and there are no more socket
+    //  we can ask reaper thread to terminate.
+    if (terminating && sockets.empty ())
+        reaper->stop ();
+
+    slot_sync.unlock ();
+}
+
+zmq::object_t *zmq::ctx_t::get_reaper ()
+{
+    return reaper;
+}
+
+void zmq::ctx_t::start_thread (thread_t &thread_, thread_fn *tfn_, void *arg_) const
+{
+    thread_.start(tfn_, arg_);
+    thread_.setSchedulingParameters(thread_priority, thread_sched_policy);
+}
+
+void zmq::ctx_t::send_command (uint32_t tid_, const command_t &command_)
+{
+    slots [tid_]->send (command_);
+}
+
+zmq::io_thread_t *zmq::ctx_t::choose_io_thread (uint64_t affinity_)
+{
+    if (io_threads.empty ())
+        return NULL;
+
+    //  Find the I/O thread with minimum load.
+    int min_load = -1;
+    io_thread_t *selected_io_thread = NULL;
+    for (io_threads_t::size_type i = 0; i != io_threads.size (); i++) {
+        if (!affinity_ || (affinity_ & (uint64_t (1) << i))) {
+            int load = io_threads [i]->get_load ();
+            if (selected_io_thread == NULL || load < min_load) {
+                min_load = load;
+                selected_io_thread = io_threads [i];
+            }
+        }
+    }
+    return selected_io_thread;
+}
+
+int zmq::ctx_t::register_endpoint (const char *addr_,
+        const endpoint_t &endpoint_)
+{
+    endpoints_sync.lock ();
+
+    const bool inserted = endpoints.insert (
+        endpoints_t::value_type (std::string (addr_), endpoint_)).second;
+
+    endpoints_sync.unlock ();
+
+    if (!inserted) {
+        errno = EADDRINUSE;
+        return -1;
+    }
+    return 0;
+}
+
+int zmq::ctx_t::unregister_endpoint (
+        const std::string &addr_, socket_base_t *socket_)
+{
+    endpoints_sync.lock ();
+
+    const endpoints_t::iterator it = endpoints.find (addr_);
+    if (it == endpoints.end () || it->second.socket != socket_) {
+        endpoints_sync.unlock ();
+        errno = ENOENT;
+        return -1;
+    }
+
+    //  Remove endpoint.
+    endpoints.erase (it);
+
+    endpoints_sync.unlock ();
+
+    return 0;
+}
+
+void zmq::ctx_t::unregister_endpoints (socket_base_t *socket_)
+{
+    endpoints_sync.lock ();
+
+    endpoints_t::iterator it = endpoints.begin ();
+    while (it != endpoints.end ()) {
+        if (it->second.socket == socket_) {
+            endpoints_t::iterator to_erase = it;
+            ++it;
+            endpoints.erase (to_erase);
+            continue;
+        }
+        ++it;
+    }
+
+    endpoints_sync.unlock ();
+}
+
+zmq::endpoint_t zmq::ctx_t::find_endpoint (const char *addr_)
+{
+     endpoints_sync.lock ();
+
+     endpoints_t::iterator it = endpoints.find (addr_);
+     if (it == endpoints.end ()) {
+         endpoints_sync.unlock ();
+         errno = ECONNREFUSED;
+         endpoint_t empty = {NULL, options_t()};
+         return empty;
+     }
+     endpoint_t endpoint = it->second;
+
+     //  Increment the command sequence number of the peer so that it won't
+     //  get deallocated until "bind" command is issued by the caller.
+     //  The subsequent 'bind' has to be called with inc_seqnum parameter
+     //  set to false, so that the seqnum isn't incremented twice.
+     endpoint.socket->inc_seqnum ();
+
+     endpoints_sync.unlock ();
+     return endpoint;
+}
+
+void zmq::ctx_t::pend_connection (const std::string &addr_,
+        const endpoint_t &endpoint_, pipe_t **pipes_)
+{
+    const pending_connection_t pending_connection =
+        {endpoint_, pipes_ [0], pipes_ [1]};
+
+    endpoints_sync.lock ();
+
+    endpoints_t::iterator it = endpoints.find (addr_);
+    if (it == endpoints.end ()) {
+        // Still no bind.
+        endpoint_.socket->inc_seqnum ();
+        pending_connections.insert (pending_connections_t::value_type (addr_, pending_connection));
+    }
+    else
+        // Bind has happened in the mean time, connect directly
+        connect_inproc_sockets (it->second.socket, it->second.options, pending_connection, connect_side);
+
+    endpoints_sync.unlock ();
+}
+
+void zmq::ctx_t::connect_pending (const char *addr_, zmq::socket_base_t *bind_socket_)
+{
+    endpoints_sync.lock ();
+
+    std::pair<pending_connections_t::iterator, pending_connections_t::iterator> pending = pending_connections.equal_range(addr_);
+
+    for (pending_connections_t::iterator p = pending.first; p != pending.second; ++p)
+        connect_inproc_sockets(bind_socket_, endpoints[addr_].options, p->second, bind_side);
+
+    pending_connections.erase(pending.first, pending.second);
+    endpoints_sync.unlock ();
+}
+
+void zmq::ctx_t::connect_inproc_sockets (zmq::socket_base_t *bind_socket_,
+    options_t& bind_options, const pending_connection_t &pending_connection_, side side_)
+{
+    bind_socket_->inc_seqnum();
+    pending_connection_.bind_pipe->set_tid (bind_socket_->get_tid ());
+
+    if (!bind_options.recv_identity) {
+        msg_t msg;
+        const bool ok = pending_connection_.bind_pipe->read (&msg);
+        zmq_assert (ok);
+        const int rc = msg.close ();
+        errno_assert (rc == 0);
+    }
+
+
+    int sndhwm = 0;
+    if (pending_connection_.endpoint.options.sndhwm != 0 && bind_options.rcvhwm != 0)
+        sndhwm = pending_connection_.endpoint.options.sndhwm + bind_options.rcvhwm;
+
+    int rcvhwm = 0;
+    if (pending_connection_.endpoint.options.rcvhwm != 0 && bind_options.sndhwm != 0)
+        rcvhwm = pending_connection_.endpoint.options.rcvhwm + bind_options.sndhwm;
+
+    bool conflate = pending_connection_.endpoint.options.conflate &&
+            (pending_connection_.endpoint.options.type == ZMQ_DEALER ||
+             pending_connection_.endpoint.options.type == ZMQ_PULL ||
+             pending_connection_.endpoint.options.type == ZMQ_PUSH ||
+             pending_connection_.endpoint.options.type == ZMQ_PUB ||
+             pending_connection_.endpoint.options.type == ZMQ_SUB);
+
+    int hwms [2] = {conflate? -1 : sndhwm, conflate? -1 : rcvhwm};
+    pending_connection_.connect_pipe->set_hwms(hwms [1], hwms [0]);
+    pending_connection_.bind_pipe->set_hwms(hwms [0], hwms [1]);
+
+    if (side_ == bind_side) {
+        command_t cmd;
+        cmd.type = command_t::bind;
+        cmd.args.bind.pipe = pending_connection_.bind_pipe;
+        bind_socket_->process_command (cmd);
+        bind_socket_->send_inproc_connected (pending_connection_.endpoint.socket);
+    }
+    else
+        pending_connection_.connect_pipe->send_bind (bind_socket_, pending_connection_.bind_pipe, false);
+
+    if (pending_connection_.endpoint.options.recv_identity) {
+        msg_t id;
+        int rc = id.init_size (bind_options.identity_size);
+        errno_assert (rc == 0);
+        memcpy (id.data (), bind_options.identity, bind_options.identity_size);
+        id.set_flags (msg_t::identity);
+        bool written = pending_connection_.bind_pipe->write (&id);
+        zmq_assert (written);
+        pending_connection_.bind_pipe->flush ();
+    }
+}
+
+//  The last used socket ID, or 0 if no socket was used so far. Note that this
+//  is a global variable. Thus, even sockets created in different contexts have
+//  unique IDs.
+zmq::atomic_counter_t zmq::ctx_t::max_socket_id;
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ctx.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ctx.hpp
new file mode 100644
index 00000000..dd397abe
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ctx.hpp
@@ -0,0 +1,223 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_CTX_HPP_INCLUDED__
+#define __ZMQ_CTX_HPP_INCLUDED__
+
+#include <map>
+#include <vector>
+#include <string>
+#include <stdarg.h>
+
+#include "mailbox.hpp"
+#include "array.hpp"
+#include "config.hpp"
+#include "mutex.hpp"
+#include "stdint.hpp"
+#include "options.hpp"
+#include "atomic_counter.hpp"
+#include "thread.hpp"
+
+namespace zmq
+{
+
+    class object_t;
+    class io_thread_t;
+    class socket_base_t;
+    class reaper_t;
+    class pipe_t;
+
+    //  Information associated with inproc endpoint. Note that endpoint options
+    //  are registered as well so that the peer can access them without a need
+    //  for synchronisation, handshaking or similar.
+    struct endpoint_t
+    {
+        socket_base_t *socket;
+        options_t options;
+    };
+
+    //  Context object encapsulates all the global state associated with
+    //  the library.
+
+    class ctx_t
+    {
+    public:
+
+        //  Create the context object.
+        ctx_t ();
+
+        //  Returns false if object is not a context.
+        bool check_tag ();
+
+        //  This function is called when user invokes zmq_term. If there are
+        //  no more sockets open it'll cause all the infrastructure to be shut
+        //  down. If there are open sockets still, the deallocation happens
+        //  after the last one is closed.
+        int terminate ();
+
+        // This function starts the terminate process by unblocking any blocking
+        // operations currently in progress and stopping any more socket activity
+        // (except zmq_close).
+        // This function is non-blocking.
+        // terminate must still be called afterwards.
+        // This function is optional, terminate will unblock any current
+        // operations as well.
+        int shutdown();
+
+        //  Set and get context properties.
+        int set (int option_, int optval_);
+        int get (int option_);
+
+        //  Create and destroy a socket.
+        zmq::socket_base_t *create_socket (int type_);
+        void destroy_socket (zmq::socket_base_t *socket_);
+
+		//  Start a new thread with proper scheduling parameters.
+        void start_thread (thread_t &thread_, thread_fn *tfn_, void *arg_) const;
+
+        //  Send command to the destination thread.
+        void send_command (uint32_t tid_, const command_t &command_);
+
+        //  Returns the I/O thread that is the least busy at the moment.
+        //  Affinity specifies which I/O threads are eligible (0 = all).
+        //  Returns NULL if no I/O thread is available.
+        zmq::io_thread_t *choose_io_thread (uint64_t affinity_);
+
+        //  Returns reaper thread object.
+        zmq::object_t *get_reaper ();
+
+        //  Management of inproc endpoints.
+        int register_endpoint (const char *addr_, const endpoint_t &endpoint_);
+        int unregister_endpoint (const std::string &addr_, socket_base_t *socket_);
+        void unregister_endpoints (zmq::socket_base_t *socket_);
+        endpoint_t find_endpoint (const char *addr_);
+        void pend_connection (const std::string &addr_,
+                const endpoint_t &endpoint_, pipe_t **pipes_);
+        void connect_pending (const char *addr_, zmq::socket_base_t *bind_socket_);
+
+        enum {
+            term_tid = 0,
+            reaper_tid = 1
+        };
+
+        ~ctx_t ();
+
+    private:
+
+        struct pending_connection_t
+        {
+            endpoint_t endpoint;
+            pipe_t* connect_pipe;
+            pipe_t* bind_pipe;
+        };
+
+        //  Used to check whether the object is a context.
+        uint32_t tag;
+
+        //  Sockets belonging to this context. We need the list so that
+        //  we can notify the sockets when zmq_term() is called. The sockets
+        //  will return ETERM then.
+        typedef array_t <socket_base_t> sockets_t;
+        sockets_t sockets;
+
+        //  List of unused thread slots.
+        typedef std::vector <uint32_t> empty_slots_t;
+        empty_slots_t empty_slots;
+
+        //  If true, zmq_init has been called but no socket has been created
+        //  yet. Launching of I/O threads is delayed.
+        bool starting;
+
+        //  If true, zmq_term was already called.
+        bool terminating;
+
+        //  Synchronisation of accesses to global slot-related data:
+        //  sockets, empty_slots, terminating. It also synchronises
+        //  access to zombie sockets as such (as opposed to slots) and provides
+        //  a memory barrier to ensure that all CPU cores see the same data.
+        mutex_t slot_sync;
+
+        //  The reaper thread.
+        zmq::reaper_t *reaper;
+
+        //  I/O threads.
+        typedef std::vector <zmq::io_thread_t*> io_threads_t;
+        io_threads_t io_threads;
+
+        //  Array of pointers to mailboxes for both application and I/O threads.
+        uint32_t slot_count;
+        mailbox_t **slots;
+
+        //  Mailbox for zmq_term thread.
+        mailbox_t term_mailbox;
+
+        //  List of inproc endpoints within this context.
+        typedef std::map <std::string, endpoint_t> endpoints_t;
+        endpoints_t endpoints;
+
+        // List of inproc connection endpoints pending a bind
+        typedef std::multimap <std::string, pending_connection_t> pending_connections_t;
+        pending_connections_t pending_connections;
+
+        //  Synchronisation of access to the list of inproc endpoints.
+        mutex_t endpoints_sync;
+
+        //  Maximum socket ID.
+        static atomic_counter_t max_socket_id;
+
+        //  Maximum number of sockets that can be opened at the same time.
+        int max_sockets;
+
+        //  Number of I/O threads to launch.
+        int io_thread_count;
+
+        //  Is IPv6 enabled on this context?
+        bool ipv6;
+
+		//  Thread scheduling parameters.
+        int thread_priority;
+        int thread_sched_policy;
+
+        //  Synchronisation of access to context options.
+        mutex_t opt_sync;
+
+        ctx_t (const ctx_t&);
+        const ctx_t &operator = (const ctx_t&);
+
+#ifdef HAVE_FORK
+        // the process that created this context. Used to detect forking.
+        pid_t pid;
+#endif
+        enum side { connect_side, bind_side };
+        void connect_inproc_sockets(zmq::socket_base_t *bind_socket_, options_t& bind_options, const pending_connection_t &pending_connection_, side side_);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/curve_client.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/curve_client.cpp
new file mode 100644
index 00000000..842e504a
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/curve_client.cpp
@@ -0,0 +1,459 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+
+#ifdef HAVE_LIBSODIUM
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include "msg.hpp"
+#include "session_base.hpp"
+#include "err.hpp"
+#include "curve_client.hpp"
+#include "wire.hpp"
+
+zmq::curve_client_t::curve_client_t (const options_t &options_) :
+    mechanism_t (options_),
+    state (send_hello),
+    cn_nonce(1),
+    cn_peer_nonce(1),
+    sync()
+{
+    memcpy (public_key, options_.curve_public_key, crypto_box_PUBLICKEYBYTES);
+    memcpy (secret_key, options_.curve_secret_key, crypto_box_SECRETKEYBYTES);
+    memcpy (server_key, options_.curve_server_key, crypto_box_PUBLICKEYBYTES);
+    scoped_lock_t lock (sync);
+#if defined(HAVE_TWEETNACL)
+    // allow opening of /dev/urandom
+    unsigned char tmpbytes[4];
+    randombytes(tmpbytes, 4);
+#else
+    // todo check return code
+    sodium_init();
+#endif
+
+    //  Generate short-term key pair
+    const int rc = crypto_box_keypair (cn_public, cn_secret);
+    zmq_assert (rc == 0);
+}
+
+zmq::curve_client_t::~curve_client_t ()
+{
+}
+
+int zmq::curve_client_t::next_handshake_command (msg_t *msg_)
+{
+    int rc = 0;
+
+    switch (state) {
+        case send_hello:
+            rc = produce_hello (msg_);
+            if (rc == 0)
+                state = expect_welcome;
+            break;
+        case send_initiate:
+            rc = produce_initiate (msg_);
+            if (rc == 0)
+                state = expect_ready;
+            break;
+        default:
+            errno = EAGAIN;
+            rc = -1;
+    }
+    return rc;
+}
+
+int zmq::curve_client_t::process_handshake_command (msg_t *msg_)
+{
+    const unsigned char *msg_data =
+        static_cast <unsigned char *> (msg_->data ());
+    const size_t msg_size = msg_->size ();
+
+    int rc = 0;
+    if (msg_size >= 8 && !memcmp (msg_data, "\7WELCOME", 8))
+        rc = process_welcome (msg_data, msg_size);
+    else
+    if (msg_size >= 6 && !memcmp (msg_data, "\5READY", 6))
+        rc = process_ready (msg_data, msg_size);
+    else
+    if (msg_size >= 6 && !memcmp (msg_data, "\5ERROR", 6))
+        rc = process_error (msg_data, msg_size);
+    else {
+        errno = EPROTO;
+        rc = -1;
+    }
+
+    if (rc == 0) {
+        rc = msg_->close ();
+        errno_assert (rc == 0);
+        rc = msg_->init ();
+        errno_assert (rc == 0);
+    }
+
+    return rc;
+}
+
+int zmq::curve_client_t::encode (msg_t *msg_)
+{
+    zmq_assert (state == connected);
+
+    uint8_t flags = 0;
+    if (msg_->flags () & msg_t::more)
+        flags |= 0x01;
+
+    uint8_t message_nonce [crypto_box_NONCEBYTES];
+    memcpy (message_nonce, "CurveZMQMESSAGEC", 16);
+    put_uint64 (message_nonce + 16, cn_nonce);
+
+    const size_t mlen = crypto_box_ZEROBYTES + 1 + msg_->size ();
+
+    uint8_t *message_plaintext = static_cast <uint8_t *> (malloc (mlen));
+    alloc_assert (message_plaintext);
+
+    memset (message_plaintext, 0, crypto_box_ZEROBYTES);
+    message_plaintext [crypto_box_ZEROBYTES] = flags;
+    memcpy (message_plaintext + crypto_box_ZEROBYTES + 1,
+            msg_->data (), msg_->size ());
+
+    uint8_t *message_box = static_cast <uint8_t *> (malloc (mlen));
+    alloc_assert (message_box);
+
+    int rc = crypto_box_afternm (message_box, message_plaintext,
+                                 mlen, message_nonce, cn_precom);
+    zmq_assert (rc == 0);
+
+    rc = msg_->close ();
+    zmq_assert (rc == 0);
+
+    rc = msg_->init_size (16 + mlen - crypto_box_BOXZEROBYTES);
+    zmq_assert (rc == 0);
+
+    uint8_t *message = static_cast <uint8_t *> (msg_->data ());
+
+    memcpy (message, "\x07MESSAGE", 8);
+    memcpy (message + 8, message_nonce + 16, 8);
+    memcpy (message + 16, message_box + crypto_box_BOXZEROBYTES,
+            mlen - crypto_box_BOXZEROBYTES);
+
+    free (message_plaintext);
+    free (message_box);
+
+    cn_nonce++;
+
+    return 0;
+}
+
+int zmq::curve_client_t::decode (msg_t *msg_)
+{
+    zmq_assert (state == connected);
+
+    if (msg_->size () < 33) {
+        errno = EPROTO;
+        return -1;
+    }
+
+    const uint8_t *message = static_cast <uint8_t *> (msg_->data ());
+    if (memcmp (message, "\x07MESSAGE", 8)) {
+        errno = EPROTO;
+        return -1;
+    }
+
+    uint8_t message_nonce [crypto_box_NONCEBYTES];
+    memcpy (message_nonce, "CurveZMQMESSAGES", 16);
+    memcpy (message_nonce + 16, message + 8, 8);
+    uint64_t nonce = get_uint64(message + 8);
+    if (nonce <= cn_peer_nonce) {
+        errno = EPROTO;
+        return -1;
+    }
+    cn_peer_nonce = nonce;
+
+
+    const size_t clen = crypto_box_BOXZEROBYTES + (msg_->size () - 16);
+
+    uint8_t *message_plaintext = static_cast <uint8_t *> (malloc (clen));
+    alloc_assert (message_plaintext);
+
+    uint8_t *message_box = static_cast <uint8_t *> (malloc (clen));
+    alloc_assert (message_box);
+
+    memset (message_box, 0, crypto_box_BOXZEROBYTES);
+    memcpy (message_box + crypto_box_BOXZEROBYTES,
+            message + 16, msg_->size () - 16);
+
+    int rc = crypto_box_open_afternm (message_plaintext, message_box,
+                                      clen, message_nonce, cn_precom);
+    if (rc == 0) {
+        rc = msg_->close ();
+        zmq_assert (rc == 0);
+
+        rc = msg_->init_size (clen - 1 - crypto_box_ZEROBYTES);
+        zmq_assert (rc == 0);
+
+        const uint8_t flags = message_plaintext [crypto_box_ZEROBYTES];
+        if (flags & 0x01)
+            msg_->set_flags (msg_t::more);
+
+        memcpy (msg_->data (),
+                message_plaintext + crypto_box_ZEROBYTES + 1,
+                msg_->size ());
+    }
+    else
+        errno = EPROTO;
+
+    free (message_plaintext);
+    free (message_box);
+
+    return rc;
+}
+
+zmq::mechanism_t::status_t zmq::curve_client_t::status () const
+{
+    if (state == connected)
+        return mechanism_t::ready;
+    else
+    if (state == error_received)
+        return mechanism_t::error;
+    else
+        return mechanism_t::handshaking;
+}
+
+int zmq::curve_client_t::produce_hello (msg_t *msg_)
+{
+    uint8_t hello_nonce [crypto_box_NONCEBYTES];
+    uint8_t hello_plaintext [crypto_box_ZEROBYTES + 64];
+    uint8_t hello_box [crypto_box_BOXZEROBYTES + 80];
+
+    //  Prepare the full nonce
+    memcpy (hello_nonce, "CurveZMQHELLO---", 16);
+    put_uint64 (hello_nonce + 16, cn_nonce);
+
+    //  Create Box [64 * %x0](C'->S)
+    memset (hello_plaintext, 0, sizeof hello_plaintext);
+
+    int rc = crypto_box (hello_box, hello_plaintext,
+                         sizeof hello_plaintext,
+                         hello_nonce, server_key, cn_secret);
+    zmq_assert (rc == 0);
+
+    rc = msg_->init_size (200);
+    errno_assert (rc == 0);
+    uint8_t *hello = static_cast <uint8_t *> (msg_->data ());
+
+    memcpy (hello, "\x05HELLO", 6);
+    //  CurveZMQ major and minor version numbers
+    memcpy (hello + 6, "\1\0", 2);
+    //  Anti-amplification padding
+    memset (hello + 8, 0, 72);
+    //  Client public connection key
+    memcpy (hello + 80, cn_public, crypto_box_PUBLICKEYBYTES);
+    //  Short nonce, prefixed by "CurveZMQHELLO---"
+    memcpy (hello + 112, hello_nonce + 16, 8);
+    //  Signature, Box [64 * %x0](C'->S)
+    memcpy (hello + 120, hello_box + crypto_box_BOXZEROBYTES, 80);
+
+    cn_nonce++;
+
+    return 0;
+}
+
+int zmq::curve_client_t::process_welcome (
+        const uint8_t *msg_data, size_t msg_size)
+{
+    if (msg_size != 168) {
+        errno = EPROTO;
+        return -1;
+    }
+
+    uint8_t welcome_nonce [crypto_box_NONCEBYTES];
+    uint8_t welcome_plaintext [crypto_box_ZEROBYTES + 128];
+    uint8_t welcome_box [crypto_box_BOXZEROBYTES + 144];
+
+    //  Open Box [S' + cookie](C'->S)
+    memset (welcome_box, 0, crypto_box_BOXZEROBYTES);
+    memcpy (welcome_box + crypto_box_BOXZEROBYTES, msg_data + 24, 144);
+
+    memcpy (welcome_nonce, "WELCOME-", 8);
+    memcpy (welcome_nonce + 8, msg_data + 8, 16);
+
+    int rc = crypto_box_open (welcome_plaintext, welcome_box,
+                              sizeof welcome_box,
+                              welcome_nonce, server_key, cn_secret);
+    if (rc != 0) {
+        errno = EPROTO;
+        return -1;
+    }
+
+    memcpy (cn_server, welcome_plaintext + crypto_box_ZEROBYTES, 32);
+    memcpy (cn_cookie, welcome_plaintext + crypto_box_ZEROBYTES + 32, 16 + 80);
+
+    //  Message independent precomputation
+    rc = crypto_box_beforenm (cn_precom, cn_server, cn_secret);
+    zmq_assert (rc == 0);
+
+    state = send_initiate;
+
+    return 0;
+}
+
+int zmq::curve_client_t::produce_initiate (msg_t *msg_)
+{
+    uint8_t vouch_nonce [crypto_box_NONCEBYTES];
+    uint8_t vouch_plaintext [crypto_box_ZEROBYTES + 64];
+    uint8_t vouch_box [crypto_box_BOXZEROBYTES + 80];
+
+    //  Create vouch = Box [C',S](C->S')
+    memset (vouch_plaintext, 0, crypto_box_ZEROBYTES);
+    memcpy (vouch_plaintext + crypto_box_ZEROBYTES, cn_public, 32);
+    memcpy (vouch_plaintext + crypto_box_ZEROBYTES + 32, server_key, 32);
+
+    memcpy (vouch_nonce, "VOUCH---", 8);
+    randombytes (vouch_nonce + 8, 16);
+
+    int rc = crypto_box (vouch_box, vouch_plaintext,
+                         sizeof vouch_plaintext,
+                         vouch_nonce, cn_server, secret_key);
+    zmq_assert (rc == 0);
+
+    //  Assume here that metadata is limited to 256 bytes
+    uint8_t initiate_nonce [crypto_box_NONCEBYTES];
+    uint8_t initiate_plaintext [crypto_box_ZEROBYTES + 128 + 256];
+    uint8_t initiate_box [crypto_box_BOXZEROBYTES + 144 + 256];
+
+    //  Create Box [C + vouch + metadata](C'->S')
+    memset (initiate_plaintext, 0, crypto_box_ZEROBYTES);
+    memcpy (initiate_plaintext + crypto_box_ZEROBYTES,
+            public_key, 32);
+    memcpy (initiate_plaintext + crypto_box_ZEROBYTES + 32,
+            vouch_nonce + 8, 16);
+    memcpy (initiate_plaintext + crypto_box_ZEROBYTES + 48,
+            vouch_box + crypto_box_BOXZEROBYTES, 80);
+
+    //  Metadata starts after vouch
+    uint8_t *ptr = initiate_plaintext + crypto_box_ZEROBYTES + 128;
+
+    //  Add socket type property
+    const char *socket_type = socket_type_string (options.type);
+    ptr += add_property (ptr, "Socket-Type", socket_type, strlen (socket_type));
+
+    //  Add identity property
+    if (options.type == ZMQ_REQ
+    ||  options.type == ZMQ_DEALER
+    ||  options.type == ZMQ_ROUTER)
+        ptr += add_property (ptr, "Identity", options.identity, options.identity_size);
+
+    const size_t mlen = ptr - initiate_plaintext;
+
+    memcpy (initiate_nonce, "CurveZMQINITIATE", 16);
+    put_uint64 (initiate_nonce + 16, cn_nonce);
+
+    rc = crypto_box (initiate_box, initiate_plaintext,
+                     mlen, initiate_nonce, cn_server, cn_secret);
+    zmq_assert (rc == 0);
+
+    rc = msg_->init_size (113 + mlen - crypto_box_BOXZEROBYTES);
+    errno_assert (rc == 0);
+
+    uint8_t *initiate = static_cast <uint8_t *> (msg_->data ());
+
+    memcpy (initiate, "\x08INITIATE", 9);
+    //  Cookie provided by the server in the WELCOME command
+    memcpy (initiate + 9, cn_cookie, 96);
+    //  Short nonce, prefixed by "CurveZMQINITIATE"
+    memcpy (initiate + 105, initiate_nonce + 16, 8);
+    //  Box [C + vouch + metadata](C'->S')
+    memcpy (initiate + 113, initiate_box + crypto_box_BOXZEROBYTES,
+            mlen - crypto_box_BOXZEROBYTES);
+    cn_nonce++;
+
+    return 0;
+}
+
+int zmq::curve_client_t::process_ready (
+        const uint8_t *msg_data, size_t msg_size)
+{
+    if (msg_size < 30) {
+        errno = EPROTO;
+        return -1;
+    }
+
+    const size_t clen = (msg_size - 14) + crypto_box_BOXZEROBYTES;
+
+    uint8_t ready_nonce [crypto_box_NONCEBYTES];
+    uint8_t ready_plaintext [crypto_box_ZEROBYTES + 256];
+    uint8_t ready_box [crypto_box_BOXZEROBYTES + 16 + 256];
+
+    memset (ready_box, 0, crypto_box_BOXZEROBYTES);
+    memcpy (ready_box + crypto_box_BOXZEROBYTES,
+            msg_data + 14, clen - crypto_box_BOXZEROBYTES);
+
+    memcpy (ready_nonce, "CurveZMQREADY---", 16);
+    memcpy (ready_nonce + 16, msg_data + 6, 8);
+    cn_peer_nonce = get_uint64(msg_data + 6);
+
+    int rc = crypto_box_open_afternm (ready_plaintext, ready_box,
+                                      clen, ready_nonce, cn_precom);
+
+    if (rc != 0) {
+        errno = EPROTO;
+        return -1;
+    }
+
+    rc = parse_metadata (ready_plaintext + crypto_box_ZEROBYTES,
+                         clen - crypto_box_ZEROBYTES);
+    if (rc == 0)
+        state = connected;
+
+    return rc;
+}
+
+int zmq::curve_client_t::process_error (
+        const uint8_t *msg_data, size_t msg_size)
+{
+    if (state != expect_welcome && state != expect_ready) {
+        errno = EPROTO;
+        return -1;
+    }
+    if (msg_size < 7) {
+        errno = EPROTO;
+        return -1;
+    }
+    const size_t error_reason_len = static_cast <size_t> (msg_data [6]);
+    if (error_reason_len > msg_size - 7) {
+        errno = EPROTO;
+        return -1;
+    }
+    state = error_received;
+    return 0;
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/curve_client.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/curve_client.hpp
new file mode 100644
index 00000000..ffae1236
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/curve_client.hpp
@@ -0,0 +1,129 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_CURVE_CLIENT_HPP_INCLUDED__
+#define __ZMQ_CURVE_CLIENT_HPP_INCLUDED__
+
+#include "platform.hpp"
+#include "mutex.hpp"
+
+#ifdef HAVE_LIBSODIUM
+#ifdef HAVE_TWEETNACL
+#include "tweetnacl_base.h"
+#include "randombytes.h"
+#else
+#include "sodium.h"
+#endif
+
+#if crypto_box_NONCEBYTES != 24 \
+||  crypto_box_PUBLICKEYBYTES != 32 \
+||  crypto_box_SECRETKEYBYTES != 32 \
+||  crypto_box_ZEROBYTES != 32 \
+||  crypto_box_BOXZEROBYTES != 16
+#error "libsodium not built properly"
+#endif
+
+#include "mechanism.hpp"
+#include "options.hpp"
+
+namespace zmq
+{
+
+    class msg_t;
+    class session_base_t;
+
+    class curve_client_t : public mechanism_t
+    {
+    public:
+
+        curve_client_t (const options_t &options_);
+        virtual ~curve_client_t ();
+
+        // mechanism implementation
+        virtual int next_handshake_command (msg_t *msg_);
+        virtual int process_handshake_command (msg_t *msg_);
+        virtual int encode (msg_t *msg_);
+        virtual int decode (msg_t *msg_);
+        virtual status_t status () const;
+
+    private:
+
+        enum state_t {
+            send_hello,
+            expect_welcome,
+            send_initiate,
+            expect_ready,
+            error_received,
+            connected
+        };
+
+        //  Current FSM state
+        state_t state;
+
+        //  Our public key (C)
+        uint8_t public_key [crypto_box_PUBLICKEYBYTES];
+
+        //  Our secret key (c)
+        uint8_t secret_key [crypto_box_SECRETKEYBYTES];
+
+        //  Our short-term public key (C')
+        uint8_t cn_public [crypto_box_PUBLICKEYBYTES];
+
+        //  Our short-term secret key (c')
+        uint8_t cn_secret [crypto_box_SECRETKEYBYTES];
+
+        //  Server's public key (S)
+        uint8_t server_key [crypto_box_PUBLICKEYBYTES];
+
+        //  Server's short-term public key (S')
+        uint8_t cn_server [crypto_box_PUBLICKEYBYTES];
+
+        //  Cookie received from server
+        uint8_t cn_cookie [16 + 80];
+
+        //  Intermediary buffer used to seepd up boxing and unboxing.
+        uint8_t cn_precom [crypto_box_BEFORENMBYTES];
+
+        //  Nonce
+        uint64_t cn_nonce;
+        uint64_t cn_peer_nonce;
+
+        int produce_hello (msg_t *msg_);
+        int process_welcome (const uint8_t *cmd_data, size_t data_size);
+        int produce_initiate (msg_t *msg_);
+        int process_ready (const uint8_t *cmd_data, size_t data_size);
+        int process_error (const uint8_t *cmd_data, size_t data_size);
+        mutex_t sync;
+    };
+
+}
+
+#endif
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/curve_server.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/curve_server.cpp
new file mode 100644
index 00000000..7bdd8a91
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/curve_server.cpp
@@ -0,0 +1,729 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+
+#ifdef HAVE_LIBSODIUM
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include "msg.hpp"
+#include "session_base.hpp"
+#include "err.hpp"
+#include "curve_server.hpp"
+#include "wire.hpp"
+
+zmq::curve_server_t::curve_server_t (session_base_t *session_,
+                                     const std::string &peer_address_,
+                                     const options_t &options_) :
+    mechanism_t (options_),
+    session (session_),
+    peer_address (peer_address_),
+    state (expect_hello),
+    cn_nonce (1),
+    cn_peer_nonce(1),
+    sync()
+{
+    //  Fetch our secret key from socket options
+    memcpy (secret_key, options_.curve_secret_key, crypto_box_SECRETKEYBYTES);
+    scoped_lock_t lock (sync);
+#if defined(HAVE_TWEETNACL)
+    // allow opening of /dev/urandom
+    unsigned char tmpbytes[4];
+    randombytes(tmpbytes, 4);
+#else
+    // todo check return code
+    sodium_init();
+#endif
+
+    //  Generate short-term key pair
+    const int rc = crypto_box_keypair (cn_public, cn_secret);
+    zmq_assert (rc == 0);
+}
+
+zmq::curve_server_t::~curve_server_t ()
+{
+}
+
+int zmq::curve_server_t::next_handshake_command (msg_t *msg_)
+{
+    int rc = 0;
+
+    switch (state) {
+        case send_welcome:
+            rc = produce_welcome (msg_);
+            if (rc == 0)
+                state = expect_initiate;
+            break;
+        case send_ready:
+            rc = produce_ready (msg_);
+            if (rc == 0)
+                state = connected;
+            break;
+        case send_error:
+            rc = produce_error (msg_);
+            if (rc == 0)
+                state = error_sent;
+            break;
+        default:
+            errno = EAGAIN;
+            rc = -1;
+            break;
+    }
+    return rc;
+}
+
+int zmq::curve_server_t::process_handshake_command (msg_t *msg_)
+{
+    int rc = 0;
+
+    switch (state) {
+        case expect_hello:
+            rc = process_hello (msg_);
+            break;
+        case expect_initiate:
+            rc = process_initiate (msg_);
+            break;
+        default:
+            //  Temporary support for security debugging
+            puts ("CURVE I: invalid handshake command");
+            errno = EPROTO;
+            rc = -1;
+            break;
+    }
+    if (rc == 0) {
+        rc = msg_->close ();
+        errno_assert (rc == 0);
+        rc = msg_->init ();
+        errno_assert (rc == 0);
+    }
+    return rc;
+}
+
+int zmq::curve_server_t::encode (msg_t *msg_)
+{
+    zmq_assert (state == connected);
+
+    const size_t mlen = crypto_box_ZEROBYTES + 1 + msg_->size ();
+
+    uint8_t message_nonce [crypto_box_NONCEBYTES];
+    memcpy (message_nonce, "CurveZMQMESSAGES", 16);
+    put_uint64 (message_nonce + 16, cn_nonce);
+
+    uint8_t flags = 0;
+    if (msg_->flags () & msg_t::more)
+        flags |= 0x01;
+
+    uint8_t *message_plaintext = static_cast <uint8_t *> (malloc (mlen));
+    alloc_assert (message_plaintext);
+
+    memset (message_plaintext, 0, crypto_box_ZEROBYTES);
+    message_plaintext [crypto_box_ZEROBYTES] = flags;
+    memcpy (message_plaintext + crypto_box_ZEROBYTES + 1,
+            msg_->data (), msg_->size ());
+
+    uint8_t *message_box = static_cast <uint8_t *> (malloc (mlen));
+    alloc_assert (message_box);
+
+    int rc = crypto_box_afternm (message_box, message_plaintext,
+                                 mlen, message_nonce, cn_precom);
+    zmq_assert (rc == 0);
+
+    rc = msg_->close ();
+    zmq_assert (rc == 0);
+
+    rc = msg_->init_size (16 + mlen - crypto_box_BOXZEROBYTES);
+    zmq_assert (rc == 0);
+
+    uint8_t *message = static_cast <uint8_t *> (msg_->data ());
+
+    memcpy (message, "\x07MESSAGE", 8);
+    memcpy (message + 8, message_nonce + 16, 8);
+    memcpy (message + 16, message_box + crypto_box_BOXZEROBYTES,
+            mlen - crypto_box_BOXZEROBYTES);
+
+    free (message_plaintext);
+    free (message_box);
+
+    cn_nonce++;
+
+    return 0;
+}
+
+int zmq::curve_server_t::decode (msg_t *msg_)
+{
+    zmq_assert (state == connected);
+
+    if (msg_->size () < 33) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: invalid CURVE client, sent malformed command");
+        errno = EPROTO;
+        return -1;
+    }
+
+    const uint8_t *message = static_cast <uint8_t *> (msg_->data ());
+    if (memcmp (message, "\x07MESSAGE", 8)) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: invalid CURVE client, did not send MESSAGE");
+        errno = EPROTO;
+        return -1;
+    }
+
+    uint8_t message_nonce [crypto_box_NONCEBYTES];
+    memcpy (message_nonce, "CurveZMQMESSAGEC", 16);
+    memcpy (message_nonce + 16, message + 8, 8);
+    uint64_t nonce = get_uint64(message + 8);
+    if (nonce <= cn_peer_nonce) {
+        errno = EPROTO;
+        return -1;
+    }
+    cn_peer_nonce = nonce;
+
+    const size_t clen = crypto_box_BOXZEROBYTES + msg_->size () - 16;
+
+    uint8_t *message_plaintext = static_cast <uint8_t *> (malloc (clen));
+    alloc_assert (message_plaintext);
+
+    uint8_t *message_box = static_cast <uint8_t *> (malloc (clen));
+    alloc_assert (message_box);
+
+    memset (message_box, 0, crypto_box_BOXZEROBYTES);
+    memcpy (message_box + crypto_box_BOXZEROBYTES,
+            message + 16, msg_->size () - 16);
+
+    int rc = crypto_box_open_afternm (message_plaintext, message_box,
+                                      clen, message_nonce, cn_precom);
+    if (rc == 0) {
+        rc = msg_->close ();
+        zmq_assert (rc == 0);
+
+        rc = msg_->init_size (clen - 1 - crypto_box_ZEROBYTES);
+        zmq_assert (rc == 0);
+
+        const uint8_t flags = message_plaintext [crypto_box_ZEROBYTES];
+        if (flags & 0x01)
+            msg_->set_flags (msg_t::more);
+
+        memcpy (msg_->data (),
+                message_plaintext + crypto_box_ZEROBYTES + 1,
+                msg_->size ());
+    }
+    else {
+        //  Temporary support for security debugging
+        puts ("CURVE I: connection key used for MESSAGE is wrong");
+        errno = EPROTO;
+    }
+    free (message_plaintext);
+    free (message_box);
+
+    return rc;
+}
+
+int zmq::curve_server_t::zap_msg_available ()
+{
+    if (state != expect_zap_reply) {
+        errno = EFSM;
+        return -1;
+    }
+    const int rc = receive_and_process_zap_reply ();
+    if (rc == 0)
+        state = status_code == "200"
+            ? send_ready
+            : send_error;
+    return rc;
+}
+
+zmq::mechanism_t::status_t zmq::curve_server_t::status () const
+{
+    if (state == connected)
+        return mechanism_t::ready;
+    else
+    if (state == error_sent)
+        return mechanism_t::error;
+    else
+        return mechanism_t::handshaking;
+}
+
+int zmq::curve_server_t::process_hello (msg_t *msg_)
+{
+    if (msg_->size () != 200) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: client HELLO is not correct size");
+        errno = EPROTO;
+        return -1;
+    }
+
+    const uint8_t * const hello = static_cast <uint8_t *> (msg_->data ());
+    if (memcmp (hello, "\x05HELLO", 6)) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: client HELLO has invalid command name");
+        errno = EPROTO;
+        return -1;
+    }
+
+    const uint8_t major = hello [6];
+    const uint8_t minor = hello [7];
+
+    if (major != 1 || minor != 0) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: client HELLO has unknown version number");
+        errno = EPROTO;
+        return -1;
+    }
+
+    //  Save client's short-term public key (C')
+    memcpy (cn_client, hello + 80, 32);
+
+    uint8_t hello_nonce [crypto_box_NONCEBYTES];
+    uint8_t hello_plaintext [crypto_box_ZEROBYTES + 64];
+    uint8_t hello_box [crypto_box_BOXZEROBYTES + 80];
+
+    memcpy (hello_nonce, "CurveZMQHELLO---", 16);
+    memcpy (hello_nonce + 16, hello + 112, 8);
+    cn_peer_nonce = get_uint64(hello + 112);
+
+    memset (hello_box, 0, crypto_box_BOXZEROBYTES);
+    memcpy (hello_box + crypto_box_BOXZEROBYTES, hello + 120, 80);
+
+    //  Open Box [64 * %x0](C'->S)
+    int rc = crypto_box_open (hello_plaintext, hello_box,
+                              sizeof hello_box,
+                              hello_nonce, cn_client, secret_key);
+    if (rc != 0) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: cannot open client HELLO -- wrong server key?");
+        errno = EPROTO;
+        return -1;
+    }
+
+    state = send_welcome;
+    return rc;
+}
+
+int zmq::curve_server_t::produce_welcome (msg_t *msg_)
+{
+    uint8_t cookie_nonce [crypto_secretbox_NONCEBYTES];
+    uint8_t cookie_plaintext [crypto_secretbox_ZEROBYTES + 64];
+    uint8_t cookie_ciphertext [crypto_secretbox_BOXZEROBYTES + 80];
+
+    //  Create full nonce for encryption
+    //  8-byte prefix plus 16-byte random nonce
+    memcpy (cookie_nonce, "COOKIE--", 8);
+    randombytes (cookie_nonce + 8, 16);
+
+    //  Generate cookie = Box [C' + s'](t)
+    memset (cookie_plaintext, 0, crypto_secretbox_ZEROBYTES);
+    memcpy (cookie_plaintext + crypto_secretbox_ZEROBYTES,
+            cn_client, 32);
+    memcpy (cookie_plaintext + crypto_secretbox_ZEROBYTES + 32,
+            cn_secret, 32);
+
+    //  Generate fresh cookie key
+    randombytes (cookie_key, crypto_secretbox_KEYBYTES);
+
+    //  Encrypt using symmetric cookie key
+    int rc = crypto_secretbox (cookie_ciphertext, cookie_plaintext,
+                               sizeof cookie_plaintext,
+                               cookie_nonce, cookie_key);
+    zmq_assert (rc == 0);
+
+    uint8_t welcome_nonce [crypto_box_NONCEBYTES];
+    uint8_t welcome_plaintext [crypto_box_ZEROBYTES + 128];
+    uint8_t welcome_ciphertext [crypto_box_BOXZEROBYTES + 144];
+
+    //  Create full nonce for encryption
+    //  8-byte prefix plus 16-byte random nonce
+    memcpy (welcome_nonce, "WELCOME-", 8);
+    randombytes (welcome_nonce + 8, crypto_box_NONCEBYTES - 8);
+
+    //  Create 144-byte Box [S' + cookie](S->C')
+    memset (welcome_plaintext, 0, crypto_box_ZEROBYTES);
+    memcpy (welcome_plaintext + crypto_box_ZEROBYTES, cn_public, 32);
+    memcpy (welcome_plaintext + crypto_box_ZEROBYTES + 32,
+            cookie_nonce + 8, 16);
+    memcpy (welcome_plaintext + crypto_box_ZEROBYTES + 48,
+            cookie_ciphertext + crypto_secretbox_BOXZEROBYTES, 80);
+
+    rc = crypto_box (welcome_ciphertext, welcome_plaintext,
+                     sizeof welcome_plaintext,
+                     welcome_nonce, cn_client, secret_key);
+    zmq_assert (rc == 0);
+
+    rc = msg_->init_size (168);
+    errno_assert (rc == 0);
+
+    uint8_t * const welcome = static_cast <uint8_t *> (msg_->data ());
+    memcpy (welcome, "\x07WELCOME", 8);
+    memcpy (welcome + 8, welcome_nonce + 8, 16);
+    memcpy (welcome + 24, welcome_ciphertext + crypto_box_BOXZEROBYTES, 144);
+
+    return 0;
+}
+
+int zmq::curve_server_t::process_initiate (msg_t *msg_)
+{
+    if (msg_->size () < 257) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: client INITIATE is not correct size");
+        errno = EPROTO;
+        return -1;
+    }
+
+    const uint8_t *initiate = static_cast <uint8_t *> (msg_->data ());
+    if (memcmp (initiate, "\x08INITIATE", 9)) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: client INITIATE has invalid command name");
+        errno = EPROTO;
+        return -1;
+    }
+
+    uint8_t cookie_nonce [crypto_secretbox_NONCEBYTES];
+    uint8_t cookie_plaintext [crypto_secretbox_ZEROBYTES + 64];
+    uint8_t cookie_box [crypto_secretbox_BOXZEROBYTES + 80];
+
+    //  Open Box [C' + s'](t)
+    memset (cookie_box, 0, crypto_secretbox_BOXZEROBYTES);
+    memcpy (cookie_box + crypto_secretbox_BOXZEROBYTES, initiate + 25, 80);
+
+    memcpy (cookie_nonce, "COOKIE--", 8);
+    memcpy (cookie_nonce + 8, initiate + 9, 16);
+
+    int rc = crypto_secretbox_open (cookie_plaintext, cookie_box,
+                                    sizeof cookie_box,
+                                    cookie_nonce, cookie_key);
+    if (rc != 0) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: cannot open client INITIATE cookie");
+        errno = EPROTO;
+        return -1;
+    }
+
+    //  Check cookie plain text is as expected [C' + s']
+    if (memcmp (cookie_plaintext + crypto_secretbox_ZEROBYTES, cn_client, 32)
+    ||  memcmp (cookie_plaintext + crypto_secretbox_ZEROBYTES + 32, cn_secret, 32)) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: client INITIATE cookie is not valid");
+        errno = EPROTO;
+        return -1;
+    }
+
+    const size_t clen = (msg_->size () - 113) + crypto_box_BOXZEROBYTES;
+
+    uint8_t initiate_nonce [crypto_box_NONCEBYTES];
+    uint8_t initiate_plaintext [crypto_box_ZEROBYTES + 128 + 256];
+    uint8_t initiate_box [crypto_box_BOXZEROBYTES + 144 + 256];
+
+    //  Open Box [C + vouch + metadata](C'->S')
+    memset (initiate_box, 0, crypto_box_BOXZEROBYTES);
+    memcpy (initiate_box + crypto_box_BOXZEROBYTES,
+            initiate + 113, clen - crypto_box_BOXZEROBYTES);
+
+    memcpy (initiate_nonce, "CurveZMQINITIATE", 16);
+    memcpy (initiate_nonce + 16, initiate + 105, 8);
+    cn_peer_nonce = get_uint64(initiate + 105);
+
+    rc = crypto_box_open (initiate_plaintext, initiate_box,
+                          clen, initiate_nonce, cn_client, cn_secret);
+    if (rc != 0) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: cannot open client INITIATE");
+        errno = EPROTO;
+        return -1;
+    }
+
+    const uint8_t *client_key = initiate_plaintext + crypto_box_ZEROBYTES;
+
+    uint8_t vouch_nonce [crypto_box_NONCEBYTES];
+    uint8_t vouch_plaintext [crypto_box_ZEROBYTES + 64];
+    uint8_t vouch_box [crypto_box_BOXZEROBYTES + 80];
+
+    //  Open Box Box [C',S](C->S') and check contents
+    memset (vouch_box, 0, crypto_box_BOXZEROBYTES);
+    memcpy (vouch_box + crypto_box_BOXZEROBYTES,
+            initiate_plaintext + crypto_box_ZEROBYTES + 48, 80);
+
+    memcpy (vouch_nonce, "VOUCH---", 8);
+    memcpy (vouch_nonce + 8,
+            initiate_plaintext + crypto_box_ZEROBYTES + 32, 16);
+
+    rc = crypto_box_open (vouch_plaintext, vouch_box,
+                          sizeof vouch_box,
+                          vouch_nonce, client_key, cn_secret);
+    if (rc != 0) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: cannot open client INITIATE vouch");
+        errno = EPROTO;
+        return -1;
+    }
+
+    //  What we decrypted must be the client's short-term public key
+    if (memcmp (vouch_plaintext + crypto_box_ZEROBYTES, cn_client, 32)) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: invalid handshake from client (public key)");
+        errno = EPROTO;
+        return -1;
+    }
+
+    //  Precompute connection secret from client key
+    rc = crypto_box_beforenm (cn_precom, cn_client, cn_secret);
+    zmq_assert (rc == 0);
+
+    //  Use ZAP protocol (RFC 27) to authenticate the user.
+    rc = session->zap_connect ();
+    if (rc == 0) {
+        send_zap_request (client_key);
+        rc = receive_and_process_zap_reply ();
+        if (rc == 0)
+            state = status_code == "200"
+                ? send_ready
+                : send_error;
+        else
+        if (errno == EAGAIN)
+            state = expect_zap_reply;
+        else
+            return -1;
+    }
+    else
+        state = send_ready;
+
+    return parse_metadata (initiate_plaintext + crypto_box_ZEROBYTES + 128,
+                           clen - crypto_box_ZEROBYTES - 128);
+}
+
+int zmq::curve_server_t::produce_ready (msg_t *msg_)
+{
+    uint8_t ready_nonce [crypto_box_NONCEBYTES];
+    uint8_t ready_plaintext [crypto_box_ZEROBYTES + 256];
+    uint8_t ready_box [crypto_box_BOXZEROBYTES + 16 + 256];
+
+    //  Create Box [metadata](S'->C')
+    memset (ready_plaintext, 0, crypto_box_ZEROBYTES);
+    uint8_t *ptr = ready_plaintext + crypto_box_ZEROBYTES;
+
+    //  Add socket type property
+    const char *socket_type = socket_type_string (options.type);
+    ptr += add_property (ptr, "Socket-Type", socket_type, strlen (socket_type));
+
+    //  Add identity property
+    if (options.type == ZMQ_REQ
+    ||  options.type == ZMQ_DEALER
+    ||  options.type == ZMQ_ROUTER)
+        ptr += add_property (ptr, "Identity", options.identity, options.identity_size);
+
+    const size_t mlen = ptr - ready_plaintext;
+
+    memcpy (ready_nonce, "CurveZMQREADY---", 16);
+    put_uint64 (ready_nonce + 16, cn_nonce);
+
+    int rc = crypto_box_afternm (ready_box, ready_plaintext,
+                                 mlen, ready_nonce, cn_precom);
+    zmq_assert (rc == 0);
+
+    rc = msg_->init_size (14 + mlen - crypto_box_BOXZEROBYTES);
+    errno_assert (rc == 0);
+
+    uint8_t *ready = static_cast <uint8_t *> (msg_->data ());
+
+    memcpy (ready, "\x05READY", 6);
+    //  Short nonce, prefixed by "CurveZMQREADY---"
+    memcpy (ready + 6, ready_nonce + 16, 8);
+    //  Box [metadata](S'->C')
+    memcpy (ready + 14, ready_box + crypto_box_BOXZEROBYTES,
+            mlen - crypto_box_BOXZEROBYTES);
+
+    cn_nonce++;
+
+    return 0;
+}
+
+int zmq::curve_server_t::produce_error (msg_t *msg_) const
+{
+    zmq_assert (status_code.length () == 3);
+    const int rc = msg_->init_size (6 + 1 + status_code.length ());
+    zmq_assert (rc == 0);
+    char *msg_data = static_cast <char *> (msg_->data ());
+    memcpy (msg_data, "\5ERROR", 6);
+    msg_data [6] = sizeof status_code;
+    memcpy (msg_data + 7, status_code.c_str (), status_code.length ());
+    return 0;
+}
+
+void zmq::curve_server_t::send_zap_request (const uint8_t *key)
+{
+    int rc;
+    msg_t msg;
+
+    //  Address delimiter frame
+    rc = msg.init ();
+    errno_assert (rc == 0);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Version frame
+    rc = msg.init_size (3);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), "1.0", 3);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Request ID frame
+    rc = msg.init_size (1);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), "1", 1);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Domain frame
+    rc = msg.init_size (options.zap_domain.length ());
+    errno_assert (rc == 0);
+    memcpy (msg.data (), options.zap_domain.c_str (), options.zap_domain.length ());
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Address frame
+    rc = msg.init_size (peer_address.length ());
+    errno_assert (rc == 0);
+    memcpy (msg.data (), peer_address.c_str (), peer_address.length ());
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Identity frame
+    rc = msg.init_size (options.identity_size);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), options.identity, options.identity_size);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Mechanism frame
+    rc = msg.init_size (5);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), "CURVE", 5);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Credentials frame
+    rc = msg.init_size (crypto_box_PUBLICKEYBYTES);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), key, crypto_box_PUBLICKEYBYTES);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+}
+
+int zmq::curve_server_t::receive_and_process_zap_reply ()
+{
+    int rc = 0;
+    msg_t msg [7];  //  ZAP reply consists of 7 frames
+
+    //  Initialize all reply frames
+    for (int i = 0; i < 7; i++) {
+        rc = msg [i].init ();
+        errno_assert (rc == 0);
+    }
+
+    for (int i = 0; i < 7; i++) {
+        rc = session->read_zap_msg (&msg [i]);
+        if (rc == -1)
+            break;
+        if ((msg [i].flags () & msg_t::more) == (i < 6? 0: msg_t::more)) {
+            //  Temporary support for security debugging
+            puts ("CURVE I: ZAP handler sent incomplete reply message");
+            errno = EPROTO;
+            rc = -1;
+            break;
+        }
+    }
+
+    if (rc != 0)
+        goto error;
+
+    //  Address delimiter frame
+    if (msg [0].size () > 0) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: ZAP handler sent malformed reply message");
+        errno = EPROTO;
+        rc = -1;
+        goto error;
+    }
+
+    //  Version frame
+    if (msg [1].size () != 3 || memcmp (msg [1].data (), "1.0", 3)) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: ZAP handler sent bad version number");
+        errno = EPROTO;
+        rc = -1;
+        goto error;
+    }
+
+    //  Request id frame
+    if (msg [2].size () != 1 || memcmp (msg [2].data (), "1", 1)) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: ZAP handler sent bad request ID");
+        errno = EPROTO;
+        rc = -1;
+        goto error;
+    }
+
+    //  Status code frame
+    if (msg [3].size () != 3) {
+        //  Temporary support for security debugging
+        puts ("CURVE I: ZAP handler rejected client authentication");
+        errno = EACCES;
+        rc = -1;
+        goto error;
+    }
+
+    //  Save status code
+    status_code.assign (static_cast <char *> (msg [3].data ()), 3);
+
+    //  Save user id
+    set_user_id (msg [5].data (), msg [5].size ());
+
+    //  Process metadata frame
+    rc = parse_metadata (static_cast <const unsigned char*> (msg [6].data ()),
+                         msg [6].size (), true);
+
+error:
+    for (int i = 0; i < 7; i++) {
+        const int rc2 = msg [i].close ();
+        errno_assert (rc2 == 0);
+    }
+
+    return rc;
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/curve_server.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/curve_server.hpp
new file mode 100644
index 00000000..fe7cf877
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/curve_server.hpp
@@ -0,0 +1,138 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_CURVE_SERVER_HPP_INCLUDED__
+#define __ZMQ_CURVE_SERVER_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#ifdef HAVE_LIBSODIUM
+#ifdef HAVE_TWEETNACL
+#include "tweetnacl_base.h"
+#include "randombytes.h"
+#else
+#include "sodium.h"
+#endif
+#if crypto_box_NONCEBYTES != 24 \
+||  crypto_box_PUBLICKEYBYTES != 32 \
+||  crypto_box_SECRETKEYBYTES != 32 \
+||  crypto_box_ZEROBYTES != 32 \
+||  crypto_box_BOXZEROBYTES != 16 \
+||  crypto_secretbox_NONCEBYTES != 24 \
+||  crypto_secretbox_ZEROBYTES != 32 \
+||  crypto_secretbox_BOXZEROBYTES != 16
+#error "libsodium not built properly"
+#endif
+
+#include "mechanism.hpp"
+#include "options.hpp"
+
+namespace zmq
+{
+
+    class msg_t;
+    class session_base_t;
+
+    class curve_server_t : public mechanism_t
+    {
+    public:
+
+        curve_server_t (session_base_t *session_,
+                        const std::string &peer_address_,
+                        const options_t &options_);
+        virtual ~curve_server_t ();
+
+        // mechanism implementation
+        virtual int next_handshake_command (msg_t *msg_);
+        virtual int process_handshake_command (msg_t *msg_);
+        virtual int encode (msg_t *msg_);
+        virtual int decode (msg_t *msg_);
+        virtual int zap_msg_available ();
+        virtual status_t status () const;
+
+    private:
+
+        enum state_t {
+            expect_hello,
+            send_welcome,
+            expect_initiate,
+            expect_zap_reply,
+            send_ready,
+            send_error,
+            error_sent,
+            connected
+        };
+
+        session_base_t * const session;
+
+        const std::string peer_address;
+
+        //  Current FSM state
+        state_t state;
+
+        //  Status code as received from ZAP handler
+        std::string status_code;
+
+        uint64_t cn_nonce;
+        uint64_t cn_peer_nonce;
+
+        //  Our secret key (s)
+        uint8_t secret_key [crypto_box_SECRETKEYBYTES];
+
+        //  Our short-term public key (S')
+        uint8_t cn_public [crypto_box_PUBLICKEYBYTES];
+
+        //  Our short-term secret key (s')
+        uint8_t cn_secret [crypto_box_SECRETKEYBYTES];
+
+        //  Client's short-term public key (C')
+        uint8_t cn_client [crypto_box_PUBLICKEYBYTES];
+
+        //  Key used to produce cookie
+        uint8_t cookie_key [crypto_secretbox_KEYBYTES];
+
+        //  Intermediary buffer used to speed up boxing and unboxing.
+        uint8_t cn_precom [crypto_box_BEFORENMBYTES];
+
+        int process_hello (msg_t *msg_);
+        int produce_welcome (msg_t *msg_);
+        int process_initiate (msg_t *msg_);
+        int produce_ready (msg_t *msg_);
+        int produce_error (msg_t *msg_) const;
+
+        void send_zap_request (const uint8_t *key);
+        int receive_and_process_zap_reply ();
+        mutex_t sync;
+    };
+
+}
+
+#endif
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dbuffer.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dbuffer.hpp
new file mode 100644
index 00000000..46fe2441
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dbuffer.hpp
@@ -0,0 +1,144 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_DBUFFER_HPP_INCLUDED__
+#define __ZMQ_DBUFFER_HPP_INCLUDED__
+
+#include <stdlib.h>
+#include <stddef.h>
+#include <algorithm>
+
+#include "mutex.hpp"
+#include "msg.hpp"
+
+namespace zmq
+{
+
+    //  dbuffer is a single-producer single-consumer double-buffer
+    //  implementation.
+    //
+    //  The producer writes to a back buffer and then tries to swap
+    //  pointers between the back and front buffers. If it fails,
+    //  due to the consumer reading from the front buffer, it just
+    //  gives up, which is ok since writes are many and redundant.
+    //
+    //  The reader simply reads from the front buffer.
+    //
+    //  has_msg keeps track of whether there has been a not yet read
+    //  value written, it is used by ypipe_conflate to mimic ypipe
+    //  functionality regarding a reader being asleep
+
+    template <typename T> class dbuffer_t;
+
+    template <> class dbuffer_t<msg_t>
+    {
+    public:
+
+        inline dbuffer_t ()
+            : back (&storage[0])
+            , front (&storage[1])
+            , has_msg (false)
+        {
+            back->init ();
+            front->init ();
+        }
+
+        inline ~dbuffer_t()
+        {
+            back->close ();
+            front->close ();
+        }
+
+        inline void write (const msg_t &value_)
+        {
+            msg_t& xvalue = const_cast<msg_t&>(value_);
+
+            zmq_assert (xvalue.check ());
+            back->move (xvalue);    // cannot just overwrite, might leak
+
+            zmq_assert (back->check ());
+
+            if (sync.try_lock ())
+            {
+                std::swap (back, front);
+                has_msg = true;
+
+                sync.unlock ();
+            }
+        }
+
+        inline bool read (msg_t *value_)
+        {
+            if (!value_)
+                return false;
+
+            {
+                scoped_lock_t lock (sync);
+                if (!has_msg)
+                    return false;
+
+                zmq_assert (front->check ());
+
+                *value_ = *front;
+                front->init ();     // avoid double free
+
+                has_msg = false;
+                return true;
+            }
+        }
+
+
+        inline bool check_read ()
+        {
+            scoped_lock_t lock (sync);
+
+            return has_msg;
+        }
+
+        inline bool probe (bool (*fn)(const msg_t &))
+        {
+            scoped_lock_t lock (sync);
+            return (*fn) (*front);
+        }
+
+
+    private:
+        msg_t storage[2];
+        msg_t *back, *front;
+
+        mutex_t sync;
+        bool has_msg;
+
+        //  Disable copying of dbuffer.
+        dbuffer_t (const dbuffer_t&);
+        const dbuffer_t &operator = (const dbuffer_t&);
+    };
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dealer.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dealer.cpp
new file mode 100644
index 00000000..2a3a5aa3
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dealer.cpp
@@ -0,0 +1,141 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "dealer.hpp"
+#include "err.hpp"
+#include "msg.hpp"
+
+zmq::dealer_t::dealer_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
+    socket_base_t (parent_, tid_, sid_),
+    probe_router (false)
+{
+    options.type = ZMQ_DEALER;
+}
+
+zmq::dealer_t::~dealer_t ()
+{
+}
+
+void zmq::dealer_t::xattach_pipe (pipe_t *pipe_, bool subscribe_to_all_)
+{
+    // subscribe_to_all_ is unused
+    (void) subscribe_to_all_;
+
+    zmq_assert (pipe_);
+
+    if (probe_router) {
+        msg_t probe_msg_;
+        int rc = probe_msg_.init ();
+        errno_assert (rc == 0);
+
+        rc = pipe_->write (&probe_msg_);
+        // zmq_assert (rc) is not applicable here, since it is not a bug.
+        pipe_->flush ();
+
+        rc = probe_msg_.close ();
+        errno_assert (rc == 0);
+    }
+
+    fq.attach (pipe_);
+    lb.attach (pipe_);
+}
+
+int zmq::dealer_t::xsetsockopt (int option_, const void *optval_,
+    size_t optvallen_)
+{
+    bool is_int = (optvallen_ == sizeof (int));
+    int value = is_int? *((int *) optval_): 0;
+
+    switch (option_) {
+        case ZMQ_PROBE_ROUTER:
+            if (is_int && value >= 0) {
+                probe_router = (value != 0);
+                return 0;
+            }
+            break;
+
+        default:
+            break;
+    }
+
+    errno = EINVAL;
+    return -1;
+}
+
+int zmq::dealer_t::xsend (msg_t *msg_)
+{
+    return sendpipe (msg_, NULL);
+}
+
+int zmq::dealer_t::xrecv (msg_t *msg_)
+{
+    return recvpipe (msg_, NULL);
+}
+
+bool zmq::dealer_t::xhas_in ()
+{
+    return fq.has_in ();
+}
+
+bool zmq::dealer_t::xhas_out ()
+{
+    return lb.has_out ();
+}
+
+zmq::blob_t zmq::dealer_t::get_credential () const
+{
+    return fq.get_credential ();
+}
+
+
+void zmq::dealer_t::xread_activated (pipe_t *pipe_)
+{
+    fq.activated (pipe_);
+}
+
+void zmq::dealer_t::xwrite_activated (pipe_t *pipe_)
+{
+    lb.activated (pipe_);
+}
+
+void zmq::dealer_t::xpipe_terminated (pipe_t *pipe_)
+{
+    fq.pipe_terminated (pipe_);
+    lb.pipe_terminated (pipe_);
+}
+
+int zmq::dealer_t::sendpipe (msg_t *msg_, pipe_t **pipe_)
+{
+    return lb.sendpipe (msg_, pipe_);
+}
+
+int zmq::dealer_t::recvpipe (msg_t *msg_, pipe_t **pipe_)
+{
+    return fq.recvpipe (msg_, pipe_);
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dealer.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dealer.hpp
new file mode 100644
index 00000000..3b1d636a
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dealer.hpp
@@ -0,0 +1,89 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_DEALER_HPP_INCLUDED__
+#define __ZMQ_DEALER_HPP_INCLUDED__
+
+#include "socket_base.hpp"
+#include "session_base.hpp"
+#include "fq.hpp"
+#include "lb.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class msg_t;
+    class pipe_t;
+    class io_thread_t;
+    class socket_base_t;
+
+    class dealer_t :
+        public socket_base_t
+    {
+    public:
+
+        dealer_t (zmq::ctx_t *parent_, uint32_t tid_, int sid);
+        ~dealer_t ();
+
+    protected:
+
+        //  Overrides of functions from socket_base_t.
+        void xattach_pipe (zmq::pipe_t *pipe_, bool subscribe_to_all_);
+        int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
+        int xsend (zmq::msg_t *msg_);
+        int xrecv (zmq::msg_t *msg_);
+        bool xhas_in ();
+        bool xhas_out ();
+        blob_t get_credential () const;
+        void xread_activated (zmq::pipe_t *pipe_);
+        void xwrite_activated (zmq::pipe_t *pipe_);
+        void xpipe_terminated (zmq::pipe_t *pipe_);
+
+        //  Send and recv - knowing which pipe was used.
+        int sendpipe (zmq::msg_t *msg_, zmq::pipe_t **pipe_);
+        int recvpipe (zmq::msg_t *msg_, zmq::pipe_t **pipe_);
+
+    private:
+
+        //  Messages are fair-queued from inbound pipes. And load-balanced to
+        //  the outbound pipes.
+        fq_t fq;
+        lb_t lb;
+
+        // if true, send an empty message to every connected router peer
+        bool probe_router;
+
+        dealer_t (const dealer_t&);
+        const dealer_t &operator = (const dealer_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/decoder.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/decoder.hpp
new file mode 100644
index 00000000..fc4b177d
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/decoder.hpp
@@ -0,0 +1,183 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_DECODER_HPP_INCLUDED__
+#define __ZMQ_DECODER_HPP_INCLUDED__
+
+#include <stddef.h>
+#include <string.h>
+#include <stdlib.h>
+#include <algorithm>
+
+#include "err.hpp"
+#include "msg.hpp"
+#include "i_decoder.hpp"
+#include "stdint.hpp"
+
+namespace zmq
+{
+    //  Helper base class for decoders that know the amount of data to read
+    //  in advance at any moment. Knowing the amount in advance is a property
+    //  of the protocol used. 0MQ framing protocol is based size-prefixed
+    //  paradigm, which qualifies it to be parsed by this class.
+    //  On the other hand, XML-based transports (like XMPP or SOAP) don't allow
+    //  for knowing the size of data to read in advance and should use different
+    //  decoding algorithms.
+    //
+    //  This class implements the state machine that parses the incoming buffer.
+    //  Derived class should implement individual state machine actions.
+
+    template <typename T> class decoder_base_t : public i_decoder
+    {
+    public:
+
+        inline decoder_base_t (size_t bufsize_) :
+            next (NULL),
+            read_pos (NULL),
+            to_read (0),
+            bufsize (bufsize_)
+        {
+            buf = (unsigned char*) malloc (bufsize_);
+            alloc_assert (buf);
+        }
+
+        //  The destructor doesn't have to be virtual. It is mad virtual
+        //  just to keep ICC and code checking tools from complaining.
+        inline virtual ~decoder_base_t ()
+        {
+            free (buf);
+        }
+
+        //  Returns a buffer to be filled with binary data.
+        inline void get_buffer (unsigned char **data_, size_t *size_)
+        {
+            //  If we are expected to read large message, we'll opt for zero-
+            //  copy, i.e. we'll ask caller to fill the data directly to the
+            //  message. Note that subsequent read(s) are non-blocking, thus
+            //  each single read reads at most SO_RCVBUF bytes at once not
+            //  depending on how large is the chunk returned from here.
+            //  As a consequence, large messages being received won't block
+            //  other engines running in the same I/O thread for excessive
+            //  amounts of time.
+            if (to_read >= bufsize) {
+                *data_ = read_pos;
+                *size_ = to_read;
+                return;
+            }
+
+            *data_ = buf;
+            *size_ = bufsize;
+        }
+
+        //  Processes the data in the buffer previously allocated using
+        //  get_buffer function. size_ argument specifies nemuber of bytes
+        //  actually filled into the buffer. Function returns 1 when the
+        //  whole message was decoded or 0 when more data is required.
+        //  On error, -1 is returned and errno set accordingly.
+        //  Number of bytes processed is returned in byts_used_.
+        inline int decode (const unsigned char *data_, size_t size_,
+                           size_t &bytes_used_)
+        {
+            bytes_used_ = 0;
+
+            //  In case of zero-copy simply adjust the pointers, no copying
+            //  is required. Also, run the state machine in case all the data
+            //  were processed.
+            if (data_ == read_pos) {
+                zmq_assert (size_ <= to_read);
+                read_pos += size_;
+                to_read -= size_;
+                bytes_used_ = size_;
+
+                while (!to_read) {
+                    const int rc = (static_cast <T*> (this)->*next) ();
+                    if (rc != 0)
+                        return rc;
+                }
+                return 0;
+            }
+
+            while (bytes_used_ < size_) {
+                //  Copy the data from buffer to the message.
+                const size_t to_copy = std::min (to_read, size_ - bytes_used_);
+                memcpy (read_pos, data_ + bytes_used_, to_copy);
+                read_pos += to_copy;
+                to_read -= to_copy;
+                bytes_used_ += to_copy;
+                //  Try to get more space in the message to fill in.
+                //  If none is available, return.
+                while (to_read == 0) {
+                    const int rc = (static_cast <T*> (this)->*next) ();
+                    if (rc != 0)
+                        return rc;
+                }
+            }
+
+            return 0;
+        }
+
+    protected:
+
+        //  Prototype of state machine action. Action should return false if
+        //  it is unable to push the data to the system.
+        typedef int (T::*step_t) ();
+
+        //  This function should be called from derived class to read data
+        //  from the buffer and schedule next state machine action.
+        inline void next_step (void *read_pos_, size_t to_read_, step_t next_)
+        {
+            read_pos = (unsigned char*) read_pos_;
+            to_read = to_read_;
+            next = next_;
+        }
+
+    private:
+
+        //  Next step. If set to NULL, it means that associated data stream
+        //  is dead. Note that there can be still data in the process in such
+        //  case.
+        step_t next;
+
+        //  Where to store the read data.
+        unsigned char *read_pos;
+
+        //  How much data to read before taking next step.
+        size_t to_read;
+
+        //  The duffer for data to decode.
+        size_t bufsize;
+        unsigned char *buf;
+
+        decoder_base_t (const decoder_base_t&);
+        const decoder_base_t &operator = (const decoder_base_t&);
+    };
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/devpoll.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/devpoll.cpp
new file mode 100644
index 00000000..6c97256e
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/devpoll.cpp
@@ -0,0 +1,204 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "devpoll.hpp"
+#if defined ZMQ_USE_DEVPOLL
+
+#include <sys/devpoll.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <limits.h>
+#include <algorithm>
+
+#include "devpoll.hpp"
+#include "err.hpp"
+#include "config.hpp"
+#include "i_poll_events.hpp"
+
+zmq::devpoll_t::devpoll_t (const zmq::ctx_t &ctx_) :
+    ctx(ctx_),
+    stopping (false)
+{
+    devpoll_fd = open ("/dev/poll", O_RDWR);
+    errno_assert (devpoll_fd != -1);
+}
+
+zmq::devpoll_t::~devpoll_t ()
+{
+    worker.stop ();
+    close (devpoll_fd);
+}
+
+void zmq::devpoll_t::devpoll_ctl (fd_t fd_, short events_)
+{
+    struct pollfd pfd = {fd_, events_, 0};
+    ssize_t rc = write (devpoll_fd, &pfd, sizeof pfd);
+    zmq_assert (rc == sizeof pfd);
+}
+
+zmq::devpoll_t::handle_t zmq::devpoll_t::add_fd (fd_t fd_,
+    i_poll_events *reactor_)
+{
+    //  If the file descriptor table is too small expand it.
+    fd_table_t::size_type sz = fd_table.size ();
+    if (sz <= (fd_table_t::size_type) fd_) {
+        fd_table.resize (fd_ + 1);
+        while (sz != (fd_table_t::size_type) (fd_ + 1)) {
+            fd_table [sz].valid = false;
+            ++sz;
+        }
+    }
+
+    zmq_assert (!fd_table [fd_].valid);
+
+    fd_table [fd_].events = 0;
+    fd_table [fd_].reactor = reactor_;
+    fd_table [fd_].valid = true;
+    fd_table [fd_].accepted = false;
+
+    devpoll_ctl (fd_, 0);
+    pending_list.push_back (fd_);
+
+    //  Increase the load metric of the thread.
+    adjust_load (1);
+
+    return fd_;
+}
+
+void zmq::devpoll_t::rm_fd (handle_t handle_)
+{
+    zmq_assert (fd_table [handle_].valid);
+
+    devpoll_ctl (handle_, POLLREMOVE);
+    fd_table [handle_].valid = false;
+
+    //  Decrease the load metric of the thread.
+    adjust_load (-1);
+}
+
+void zmq::devpoll_t::set_pollin (handle_t handle_)
+{
+    devpoll_ctl (handle_, POLLREMOVE);
+    fd_table [handle_].events |= POLLIN;
+    devpoll_ctl (handle_, fd_table [handle_].events);
+}
+
+void zmq::devpoll_t::reset_pollin (handle_t handle_)
+{
+    devpoll_ctl (handle_, POLLREMOVE);
+    fd_table [handle_].events &= ~((short) POLLIN);
+    devpoll_ctl (handle_, fd_table [handle_].events);
+}
+
+void zmq::devpoll_t::set_pollout (handle_t handle_)
+{
+    devpoll_ctl (handle_, POLLREMOVE);
+    fd_table [handle_].events |= POLLOUT;
+    devpoll_ctl (handle_, fd_table [handle_].events);
+}
+
+void zmq::devpoll_t::reset_pollout (handle_t handle_)
+{
+    devpoll_ctl (handle_, POLLREMOVE);
+    fd_table [handle_].events &= ~((short) POLLOUT);
+    devpoll_ctl (handle_, fd_table [handle_].events);
+}
+
+void zmq::devpoll_t::start ()
+{
+    ctx.start_thread (worker, worker_routine, this);
+}
+
+void zmq::devpoll_t::stop ()
+{
+    stopping = true;
+}
+
+int zmq::devpoll_t::max_fds ()
+{
+    return -1;
+}
+
+void zmq::devpoll_t::loop ()
+{
+    while (!stopping) {
+
+        struct pollfd ev_buf [max_io_events];
+        struct dvpoll poll_req;
+
+        for (pending_list_t::size_type i = 0; i < pending_list.size (); i ++)
+            fd_table [pending_list [i]].accepted = true;
+        pending_list.clear ();
+
+        //  Execute any due timers.
+        int timeout = (int) execute_timers ();
+
+        //  Wait for events.
+        //  On Solaris, we can retrieve no more then (OPEN_MAX - 1) events.
+        poll_req.dp_fds = &ev_buf [0];
+#if defined ZMQ_HAVE_SOLARIS
+        poll_req.dp_nfds = std::min ((int) max_io_events, OPEN_MAX - 1);
+#else
+        poll_req.dp_nfds = max_io_events;
+#endif
+        poll_req.dp_timeout = timeout ? timeout : -1;
+        int n = ioctl (devpoll_fd, DP_POLL, &poll_req);
+        if (n == -1 && errno == EINTR)
+            continue;
+        errno_assert (n != -1);
+
+        for (int i = 0; i < n; i ++) {
+
+            fd_entry_t *fd_ptr = &fd_table [ev_buf [i].fd];
+            if (!fd_ptr->valid || !fd_ptr->accepted)
+                continue;
+            if (ev_buf [i].revents & (POLLERR | POLLHUP))
+                fd_ptr->reactor->in_event ();
+            if (!fd_ptr->valid || !fd_ptr->accepted)
+                continue;
+            if (ev_buf [i].revents & POLLOUT)
+                fd_ptr->reactor->out_event ();
+            if (!fd_ptr->valid || !fd_ptr->accepted)
+                continue;
+            if (ev_buf [i].revents & POLLIN)
+                fd_ptr->reactor->in_event ();
+        }
+    }
+}
+
+void zmq::devpoll_t::worker_routine (void *arg_)
+{
+    ((devpoll_t*) arg_)->loop ();
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/devpoll.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/devpoll.hpp
new file mode 100644
index 00000000..5d77b8fc
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/devpoll.hpp
@@ -0,0 +1,119 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_DEVPOLL_HPP_INCLUDED__
+#define __ZMQ_DEVPOLL_HPP_INCLUDED__
+
+//  poller.hpp decides which polling mechanism to use.
+#include "poller.hpp"
+#if defined ZMQ_USE_DEVPOLL
+
+#include <vector>
+
+#include "ctx.hpp"
+#include "fd.hpp"
+#include "thread.hpp"
+#include "poller_base.hpp"
+
+namespace zmq
+{
+
+    struct i_poll_events;
+
+    //  Implements socket polling mechanism using the "/dev/poll" interface.
+
+    class devpoll_t : public poller_base_t
+    {
+    public:
+
+        typedef fd_t handle_t;
+
+        devpoll_t (const ctx_t &ctx_);
+        ~devpoll_t ();
+
+        //  "poller" concept.
+        handle_t add_fd (fd_t fd_, zmq::i_poll_events *events_);
+        void rm_fd (handle_t handle_);
+        void set_pollin (handle_t handle_);
+        void reset_pollin (handle_t handle_);
+        void set_pollout (handle_t handle_);
+        void reset_pollout (handle_t handle_);
+        void start ();
+        void stop ();
+
+        static int max_fds ();
+
+    private:
+
+        //  Main worker thread routine.
+        static void worker_routine (void *arg_);
+
+        //  Main event loop.
+        void loop ();
+
+        // Reference to ZMQ context.
+        const ctx_t &ctx;
+
+        //  File descriptor referring to "/dev/poll" pseudo-device.
+        fd_t devpoll_fd;
+
+        struct fd_entry_t
+        {
+            short events;
+            zmq::i_poll_events *reactor;
+            bool valid;
+            bool accepted;
+        };
+
+        typedef std::vector <fd_entry_t> fd_table_t;
+        fd_table_t fd_table;
+
+        typedef std::vector <fd_t> pending_list_t;
+        pending_list_t pending_list;
+
+        //  Pollset manipulation function.
+        void devpoll_ctl (fd_t fd_, short events_);
+
+        //  If true, thread is in the process of shutting down.
+        bool stopping;
+
+        //  Handle of the physical thread doing the I/O work.
+        thread_t worker;
+
+        devpoll_t (const devpoll_t&);
+        const devpoll_t &operator = (const devpoll_t&);
+    };
+
+    typedef devpoll_t poller_t;
+
+}
+
+#endif
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dist.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dist.cpp
new file mode 100644
index 00000000..e7e18233
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dist.cpp
@@ -0,0 +1,216 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "dist.hpp"
+#include "pipe.hpp"
+#include "err.hpp"
+#include "msg.hpp"
+#include "likely.hpp"
+
+zmq::dist_t::dist_t () :
+    matching (0),
+    active (0),
+    eligible (0),
+    more (false)
+{
+}
+
+zmq::dist_t::~dist_t ()
+{
+    zmq_assert (pipes.empty ());
+}
+
+void zmq::dist_t::attach (pipe_t *pipe_)
+{
+    //  If we are in the middle of sending a message, we'll add new pipe
+    //  into the list of eligible pipes. Otherwise we add it to the list
+    //  of active pipes.
+    if (more) {
+        pipes.push_back (pipe_);
+        pipes.swap (eligible, pipes.size () - 1);
+        eligible++;
+    }
+    else {
+        pipes.push_back (pipe_);
+        pipes.swap (active, pipes.size () - 1);
+        active++;
+        eligible++;
+    }
+}
+
+void zmq::dist_t::match (pipe_t *pipe_)
+{
+    //  If pipe is already matching do nothing.
+    if (pipes.index (pipe_) < matching)
+        return;
+
+    //  If the pipe isn't eligible, ignore it.
+    if (pipes.index (pipe_) >= eligible)
+        return;
+
+    //  Mark the pipe as matching.
+    pipes.swap (pipes.index (pipe_), matching);
+    matching++;
+}
+
+void zmq::dist_t::unmatch ()
+{
+    matching = 0;
+}
+
+void zmq::dist_t::pipe_terminated (pipe_t *pipe_)
+{
+    //  Remove the pipe from the list; adjust number of matching, active and/or
+    //  eligible pipes accordingly.
+    if (pipes.index (pipe_) < matching) {
+        pipes.swap (pipes.index (pipe_), matching - 1);
+        matching--;
+    }
+    if (pipes.index (pipe_) < active) {
+        pipes.swap (pipes.index (pipe_), active - 1);
+        active--;
+    }
+    if (pipes.index (pipe_) < eligible) {
+        pipes.swap (pipes.index (pipe_), eligible - 1);
+        eligible--;
+    }
+
+    pipes.erase (pipe_);
+}
+
+void zmq::dist_t::activated (pipe_t *pipe_)
+{
+    //  Move the pipe from passive to eligible state.
+    pipes.swap (pipes.index (pipe_), eligible);
+    eligible++;
+
+    //  If there's no message being sent at the moment, move it to
+    //  the active state.
+    if (!more) {
+        pipes.swap (eligible - 1, active);
+        active++;
+    }
+}
+
+int zmq::dist_t::send_to_all (msg_t *msg_)
+{
+    matching = active;
+    return send_to_matching (msg_);
+}
+
+int zmq::dist_t::send_to_matching (msg_t *msg_)
+{
+    //  Is this end of a multipart message?
+    bool msg_more = msg_->flags () & msg_t::more ? true : false;
+
+    //  Push the message to matching pipes.
+    distribute (msg_);
+
+    //  If mutlipart message is fully sent, activate all the eligible pipes.
+    if (!msg_more)
+        active = eligible;
+
+    more = msg_more;
+
+    return 0;
+}
+
+void zmq::dist_t::distribute (msg_t *msg_)
+{
+    //  If there are no matching pipes available, simply drop the message.
+    if (matching == 0) {
+        int rc = msg_->close ();
+        errno_assert (rc == 0);
+        rc = msg_->init ();
+        errno_assert (rc == 0);
+        return;
+    }
+
+    if (msg_->is_vsm ()) {
+        for (pipes_t::size_type i = 0; i < matching; ++i)
+            if(!write (pipes [i], msg_))
+                --i; //  Retry last write because index will have been swapped
+        int rc = msg_->close();
+        errno_assert (rc == 0);
+        rc = msg_->init ();
+        errno_assert (rc == 0);
+        return;
+    }
+
+    //  Add matching-1 references to the message. We already hold one reference,
+    //  that's why -1.
+    msg_->add_refs ((int) matching - 1);
+
+    //  Push copy of the message to each matching pipe.
+    int failed = 0;
+    for (pipes_t::size_type i = 0; i < matching; ++i)
+        if (!write (pipes [i], msg_)) {
+            ++failed;
+            --i; //  Retry last write because index will have been swapped
+        }
+    if (unlikely (failed))
+        msg_->rm_refs (failed);
+
+    //  Detach the original message from the data buffer. Note that we don't
+    //  close the message. That's because we've already used all the references.
+    int rc = msg_->init ();
+    errno_assert (rc == 0);
+}
+
+bool zmq::dist_t::has_out ()
+{
+    return true;
+}
+
+bool zmq::dist_t::write (pipe_t *pipe_, msg_t *msg_)
+{
+    if (!pipe_->write (msg_)) {
+        pipes.swap (pipes.index (pipe_), matching - 1);
+        matching--;
+        pipes.swap (pipes.index (pipe_), active - 1);
+        active--;
+        pipes.swap (active, eligible - 1);
+        eligible--;
+        return false;
+    }
+    if (!(msg_->flags () & msg_t::more))
+        pipe_->flush ();
+    return true;
+}
+
+bool zmq::dist_t::check_hwm ()
+{
+    for (pipes_t::size_type i = 0; i < matching; ++i)
+        if (!pipes [i]->check_hwm ())
+            return false;
+
+    return true;
+}
+
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dist.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dist.hpp
new file mode 100644
index 00000000..3b5e5702
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/dist.hpp
@@ -0,0 +1,117 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_DIST_HPP_INCLUDED__
+#define __ZMQ_DIST_HPP_INCLUDED__
+
+#include <vector>
+
+#include "array.hpp"
+#include "pipe.hpp"
+
+namespace zmq
+{
+
+    class pipe_t;
+    class msg_t;
+
+    //  Class manages a set of outbound pipes. It sends each messages to
+    //  each of them.
+    class dist_t
+    {
+    public:
+
+        dist_t ();
+        ~dist_t ();
+
+        //  Adds the pipe to the distributor object.
+        void attach (zmq::pipe_t *pipe_);
+
+        //  Activates pipe that have previously reached high watermark.
+        void activated (zmq::pipe_t *pipe_);
+
+        //  Mark the pipe as matching. Subsequent call to send_to_matching
+        //  will send message also to this pipe.
+        void match (zmq::pipe_t *pipe_);
+
+        //  Mark all pipes as non-matching.
+        void unmatch ();
+
+        //  Removes the pipe from the distributor object.
+        void pipe_terminated (zmq::pipe_t *pipe_);
+
+        //  Send the message to the matching outbound pipes.
+        int send_to_matching (zmq::msg_t *msg_);
+
+        //  Send the message to all the outbound pipes.
+        int send_to_all (zmq::msg_t *msg_);
+
+        bool has_out ();
+
+        // check HWM of all pipes matching
+        bool check_hwm ();
+
+    private:
+
+        //  Write the message to the pipe. Make the pipe inactive if writing
+        //  fails. In such a case false is returned.
+        bool write (zmq::pipe_t *pipe_, zmq::msg_t *msg_);
+
+        //  Put the message to all active pipes.
+        void distribute (zmq::msg_t *msg_);
+
+        //  List of outbound pipes.
+        typedef array_t <zmq::pipe_t, 2> pipes_t;
+        pipes_t pipes;
+
+        //  Number of all the pipes to send the next message to.
+        pipes_t::size_type matching;
+
+        //  Number of active pipes. All the active pipes are located at the
+        //  beginning of the pipes array. These are the pipes the messages
+        //  can be sent to at the moment.
+        pipes_t::size_type active;
+
+        //  Number of pipes eligible for sending messages to. This includes all
+        //  the active pipes plus all the pipes that we can in theory send
+        //  messages to (the HWM is not yet reached), but sending a message
+        //  to them would result in partial message being delivered, ie. message
+        //  with initial parts missing.
+        pipes_t::size_type eligible;
+
+        //  True if last we are in the middle of a multipart message.
+        bool more;
+
+        dist_t (const dist_t&);
+        const dist_t &operator = (const dist_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/encoder.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/encoder.hpp
new file mode 100644
index 00000000..8d8a0ff5
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/encoder.hpp
@@ -0,0 +1,185 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_ENCODER_HPP_INCLUDED__
+#define __ZMQ_ENCODER_HPP_INCLUDED__
+
+#if defined(_MSC_VER)
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+#endif
+
+#include <stddef.h>
+#include <string.h>
+#include <stdlib.h>
+#include <algorithm>
+
+#include "err.hpp"
+#include "msg.hpp"
+#include "i_encoder.hpp"
+
+namespace zmq
+{
+
+    //  Helper base class for encoders. It implements the state machine that
+    //  fills the outgoing buffer. Derived classes should implement individual
+    //  state machine actions.
+
+    template <typename T> class encoder_base_t : public i_encoder
+    {
+    public:
+
+        inline encoder_base_t (size_t bufsize_) :
+            bufsize (bufsize_),
+            in_progress (NULL)
+        {
+            buf = (unsigned char*) malloc (bufsize_);
+            alloc_assert (buf);
+        }
+
+        //  The destructor doesn't have to be virtual. It is made virtual
+        //  just to keep ICC and code checking tools from complaining.
+        inline virtual ~encoder_base_t ()
+        {
+            free (buf);
+        }
+
+        //  The function returns a batch of binary data. The data
+        //  are filled to a supplied buffer. If no buffer is supplied (data_
+        //  points to NULL) decoder object will provide buffer of its own.
+        inline size_t encode (unsigned char **data_, size_t size_)
+        {
+            unsigned char *buffer = !*data_ ? buf : *data_;
+            size_t buffersize = !*data_ ? bufsize : size_;
+
+            if (in_progress == NULL)
+                return 0;
+
+            size_t pos = 0;
+            while (pos < buffersize) {
+
+                //  If there are no more data to return, run the state machine.
+                //  If there are still no data, return what we already have
+                //  in the buffer.
+                if (!to_write) {
+                    if (new_msg_flag) {
+                        int rc = in_progress->close ();
+                        errno_assert (rc == 0);
+                        rc = in_progress->init ();
+                        errno_assert (rc == 0);
+                        in_progress = NULL;
+                        break;
+                    }
+                    (static_cast <T*> (this)->*next) ();
+                }
+
+                //  If there are no data in the buffer yet and we are able to
+                //  fill whole buffer in a single go, let's use zero-copy.
+                //  There's no disadvantage to it as we cannot stuck multiple
+                //  messages into the buffer anyway. Note that subsequent
+                //  write(s) are non-blocking, thus each single write writes
+                //  at most SO_SNDBUF bytes at once not depending on how large
+                //  is the chunk returned from here.
+                //  As a consequence, large messages being sent won't block
+                //  other engines running in the same I/O thread for excessive
+                //  amounts of time.
+                if (!pos && !*data_ && to_write >= buffersize) {
+                    *data_ = write_pos;
+                    pos = to_write;
+                    write_pos = NULL;
+                    to_write = 0;
+                    return pos;
+                }
+
+                //  Copy data to the buffer. If the buffer is full, return.
+                size_t to_copy = std::min (to_write, buffersize - pos);
+                memcpy (buffer + pos, write_pos, to_copy);
+                pos += to_copy;
+                write_pos += to_copy;
+                to_write -= to_copy;
+            }
+
+            *data_ = buffer;
+            return pos;
+        }
+
+        void load_msg (msg_t *msg_)
+        {
+            zmq_assert (in_progress == NULL);
+            in_progress = msg_;
+            (static_cast <T*> (this)->*next) ();
+        }
+
+    protected:
+
+        //  Prototype of state machine action.
+        typedef void (T::*step_t) ();
+
+        //  This function should be called from derived class to write the data
+        //  to the buffer and schedule next state machine action.
+        inline void next_step (void *write_pos_, size_t to_write_,
+            step_t next_, bool new_msg_flag_)
+        {
+            write_pos = (unsigned char*) write_pos_;
+            to_write = to_write_;
+            next = next_;
+            new_msg_flag = new_msg_flag_;
+        }
+
+    private:
+
+        //  Where to get the data to write from.
+        unsigned char *write_pos;
+
+        //  How much data to write before next step should be executed.
+        size_t to_write;
+
+        //  Next step. If set to NULL, it means that associated data stream
+        //  is dead.
+        step_t next;
+
+        bool new_msg_flag;
+
+        //  The buffer for encoded data.
+        size_t bufsize;
+        unsigned char *buf;
+
+        encoder_base_t (const encoder_base_t&);
+        void operator = (const encoder_base_t&);
+
+    protected:
+
+        msg_t *in_progress;
+
+    };
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/epoll.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/epoll.cpp
new file mode 100644
index 00000000..1de68c52
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/epoll.cpp
@@ -0,0 +1,192 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "epoll.hpp"
+#if defined ZMQ_USE_EPOLL
+
+#include <sys/epoll.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <algorithm>
+#include <new>
+
+#include "epoll.hpp"
+#include "err.hpp"
+#include "config.hpp"
+#include "i_poll_events.hpp"
+
+zmq::epoll_t::epoll_t (const zmq::ctx_t &ctx_) :
+    ctx(ctx_),
+    stopping (false)
+{
+    epoll_fd = epoll_create (1);
+    errno_assert (epoll_fd != -1);
+}
+
+zmq::epoll_t::~epoll_t ()
+{
+    //  Wait till the worker thread exits.
+    worker.stop ();
+
+    close (epoll_fd);
+    for (retired_t::iterator it = retired.begin (); it != retired.end (); ++it)
+        delete *it;
+}
+
+zmq::epoll_t::handle_t zmq::epoll_t::add_fd (fd_t fd_, i_poll_events *events_)
+{
+    poll_entry_t *pe = new (std::nothrow) poll_entry_t;
+    alloc_assert (pe);
+
+    //  The memset is not actually needed. It's here to prevent debugging
+    //  tools to complain about using uninitialised memory.
+    memset (pe, 0, sizeof (poll_entry_t));
+
+    pe->fd = fd_;
+    pe->ev.events = 0;
+    pe->ev.data.ptr = pe;
+    pe->events = events_;
+
+    int rc = epoll_ctl (epoll_fd, EPOLL_CTL_ADD, fd_, &pe->ev);
+    errno_assert (rc != -1);
+
+    //  Increase the load metric of the thread.
+    adjust_load (1);
+
+    return pe;
+}
+
+void zmq::epoll_t::rm_fd (handle_t handle_)
+{
+    poll_entry_t *pe = (poll_entry_t*) handle_;
+    int rc = epoll_ctl (epoll_fd, EPOLL_CTL_DEL, pe->fd, &pe->ev);
+    errno_assert (rc != -1);
+    pe->fd = retired_fd;
+    retired.push_back (pe);
+
+    //  Decrease the load metric of the thread.
+    adjust_load (-1);
+}
+
+void zmq::epoll_t::set_pollin (handle_t handle_)
+{
+    poll_entry_t *pe = (poll_entry_t*) handle_;
+    pe->ev.events |= EPOLLIN;
+    int rc = epoll_ctl (epoll_fd, EPOLL_CTL_MOD, pe->fd, &pe->ev);
+    errno_assert (rc != -1);
+}
+
+void zmq::epoll_t::reset_pollin (handle_t handle_)
+{
+    poll_entry_t *pe = (poll_entry_t*) handle_;
+    pe->ev.events &= ~((short) EPOLLIN);
+    int rc = epoll_ctl (epoll_fd, EPOLL_CTL_MOD, pe->fd, &pe->ev);
+    errno_assert (rc != -1);
+}
+
+void zmq::epoll_t::set_pollout (handle_t handle_)
+{
+    poll_entry_t *pe = (poll_entry_t*) handle_;
+    pe->ev.events |= EPOLLOUT;
+    int rc = epoll_ctl (epoll_fd, EPOLL_CTL_MOD, pe->fd, &pe->ev);
+    errno_assert (rc != -1);
+}
+
+void zmq::epoll_t::reset_pollout (handle_t handle_)
+{
+    poll_entry_t *pe = (poll_entry_t*) handle_;
+    pe->ev.events &= ~((short) EPOLLOUT);
+    int rc = epoll_ctl (epoll_fd, EPOLL_CTL_MOD, pe->fd, &pe->ev);
+    errno_assert (rc != -1);
+}
+
+void zmq::epoll_t::start ()
+{
+    ctx.start_thread (worker, worker_routine, this);
+}
+
+void zmq::epoll_t::stop ()
+{
+    stopping = true;
+}
+
+int zmq::epoll_t::max_fds ()
+{
+    return -1;
+}
+
+void zmq::epoll_t::loop ()
+{
+    epoll_event ev_buf [max_io_events];
+
+    while (!stopping) {
+
+        //  Execute any due timers.
+        int timeout = (int) execute_timers ();
+
+        //  Wait for events.
+        int n = epoll_wait (epoll_fd, &ev_buf [0], max_io_events,
+            timeout ? timeout : -1);
+        if (n == -1) {
+            errno_assert (errno == EINTR);
+            continue;
+        }
+
+        for (int i = 0; i < n; i ++) {
+            poll_entry_t *pe = ((poll_entry_t*) ev_buf [i].data.ptr);
+
+            if (pe->fd == retired_fd)
+                continue;
+            if (ev_buf [i].events & (EPOLLERR | EPOLLHUP))
+                pe->events->in_event ();
+            if (pe->fd == retired_fd)
+               continue;
+            if (ev_buf [i].events & EPOLLOUT)
+                pe->events->out_event ();
+            if (pe->fd == retired_fd)
+                continue;
+            if (ev_buf [i].events & EPOLLIN)
+                pe->events->in_event ();
+        }
+
+        //  Destroy retired event sources.
+        for (retired_t::iterator it = retired.begin (); it != retired.end ();
+              ++it)
+            delete *it;
+        retired.clear ();
+    }
+}
+
+void zmq::epoll_t::worker_routine (void *arg_)
+{
+    ((epoll_t*) arg_)->loop ();
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/epoll.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/epoll.hpp
new file mode 100644
index 00000000..8f79343c
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/epoll.hpp
@@ -0,0 +1,115 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_EPOLL_HPP_INCLUDED__
+#define __ZMQ_EPOLL_HPP_INCLUDED__
+
+//  poller.hpp decides which polling mechanism to use.
+#include "poller.hpp"
+#if defined ZMQ_USE_EPOLL
+
+#include <vector>
+#include <sys/epoll.h>
+
+#include "ctx.hpp"
+#include "fd.hpp"
+#include "thread.hpp"
+#include "poller_base.hpp"
+
+namespace zmq
+{
+
+    struct i_poll_events;
+
+    //  This class implements socket polling mechanism using the Linux-specific
+    //  epoll mechanism.
+
+    class epoll_t : public poller_base_t
+    {
+    public:
+
+        typedef void* handle_t;
+
+        epoll_t (const ctx_t &ctx_);
+        ~epoll_t ();
+
+        //  "poller" concept.
+        handle_t add_fd (fd_t fd_, zmq::i_poll_events *events_);
+        void rm_fd (handle_t handle_);
+        void set_pollin (handle_t handle_);
+        void reset_pollin (handle_t handle_);
+        void set_pollout (handle_t handle_);
+        void reset_pollout (handle_t handle_);
+        void start ();
+        void stop ();
+
+        static int max_fds ();
+
+    private:
+
+        //  Main worker thread routine.
+        static void worker_routine (void *arg_);
+
+        //  Main event loop.
+        void loop ();
+
+        // Reference to ZMQ context.
+        const ctx_t &ctx;
+
+        //  Main epoll file descriptor
+        fd_t epoll_fd;
+
+        struct poll_entry_t
+        {
+            fd_t fd;
+            epoll_event ev;
+            zmq::i_poll_events *events;
+        };
+
+        //  List of retired event sources.
+        typedef std::vector <poll_entry_t*> retired_t;
+        retired_t retired;
+
+        //  If true, thread is in the process of shutting down.
+        bool stopping;
+
+        //  Handle of the physical thread doing the I/O work.
+        thread_t worker;
+
+        epoll_t (const epoll_t&);
+        const epoll_t &operator = (const epoll_t&);
+    };
+
+    typedef epoll_t poller_t;
+
+}
+
+#endif
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/err.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/err.cpp
new file mode 100644
index 00000000..1ca7200e
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/err.cpp
@@ -0,0 +1,386 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "err.hpp"
+#include "platform.hpp"
+
+const char *zmq::errno_to_string (int errno_)
+{
+    switch (errno_) {
+#if defined ZMQ_HAVE_WINDOWS
+    case ENOTSUP:
+        return "Not supported";
+    case EPROTONOSUPPORT:
+        return "Protocol not supported";
+    case ENOBUFS:
+        return "No buffer space available";
+    case ENETDOWN:
+        return "Network is down";
+    case EADDRINUSE:
+        return "Address in use";
+    case EADDRNOTAVAIL:
+        return "Address not available";
+    case ECONNREFUSED:
+        return "Connection refused";
+    case EINPROGRESS:
+        return "Operation in progress";
+#endif
+    case EFSM:
+        return "Operation cannot be accomplished in current state";
+    case ENOCOMPATPROTO:
+        return "The protocol is not compatible with the socket type";
+    case ETERM:
+        return "Context was terminated";
+    case EMTHREAD:
+        return "No thread available";
+    default:
+#if defined _MSC_VER
+#pragma warning (push)
+#pragma warning (disable:4996)
+#endif
+        return strerror (errno_);
+#if defined _MSC_VER
+#pragma warning (pop)
+#endif
+    }
+}
+
+void zmq::zmq_abort(const char *errmsg_)
+{
+#if defined ZMQ_HAVE_WINDOWS
+
+    //  Raise STATUS_FATAL_APP_EXIT.
+    ULONG_PTR extra_info [1];
+    extra_info [0] = (ULONG_PTR) errmsg_;
+    RaiseException (0x40000015, EXCEPTION_NONCONTINUABLE, 1, extra_info);
+#else
+    (void)errmsg_;
+    abort ();
+#endif
+}
+
+#ifdef ZMQ_HAVE_WINDOWS
+
+const char *zmq::wsa_error()
+{
+    int no = WSAGetLastError ();
+    //  TODO: This is not a generic way to handle this...
+    if (no == WSAEWOULDBLOCK)
+        return NULL;
+
+    return wsa_error_no (no);
+}
+
+const char *zmq::wsa_error_no (int no_)
+{
+    //  TODO:  It seems that list of Windows socket errors is longer than this.
+    //         Investigate whether there's a way to convert it into the string
+    //         automatically (wsaError->HRESULT->string?).
+    return
+        (no_ == WSABASEERR) ?
+            "No Error" :
+        (no_ == WSAEINTR) ?
+            "Interrupted system call" :
+        (no_ == WSAEBADF) ?
+            "Bad file number" :
+        (no_ == WSAEACCES) ?
+            "Permission denied" :
+        (no_ == WSAEFAULT) ?
+            "Bad address" :
+        (no_ == WSAEINVAL) ?
+            "Invalid argument" :
+        (no_ == WSAEMFILE) ?
+            "Too many open files" :
+        (no_ == WSAEWOULDBLOCK) ?
+            "Operation would block" :
+        (no_ == WSAEINPROGRESS) ?
+            "Operation now in progress" :
+        (no_ == WSAEALREADY) ?
+            "Operation already in progress" :
+        (no_ == WSAENOTSOCK) ?
+            "Socket operation on non-socket" :
+        (no_ == WSAEDESTADDRREQ) ?
+            "Destination address required" :
+        (no_ == WSAEMSGSIZE) ?
+            "Message too long" :
+        (no_ == WSAEPROTOTYPE) ?
+            "Protocol wrong type for socket" :
+        (no_ == WSAENOPROTOOPT) ?
+            "Bad protocol option" :
+        (no_ == WSAEPROTONOSUPPORT) ?
+            "Protocol not supported" :
+        (no_ == WSAESOCKTNOSUPPORT) ?
+            "Socket type not supported" :
+        (no_ == WSAEOPNOTSUPP) ?
+            "Operation not supported on socket" :
+        (no_ == WSAEPFNOSUPPORT) ?
+            "Protocol family not supported" :
+        (no_ == WSAEAFNOSUPPORT) ?
+            "Address family not supported by protocol family" :
+        (no_ == WSAEADDRINUSE) ?
+            "Address already in use" :
+        (no_ == WSAEADDRNOTAVAIL) ?
+            "Can't assign requested address" :
+        (no_ == WSAENETDOWN) ?
+            "Network is down" :
+        (no_ == WSAENETUNREACH) ?
+            "Network is unreachable" :
+        (no_ == WSAENETRESET) ?
+            "Net dropped connection or reset" :
+        (no_ == WSAECONNABORTED) ?
+            "Software caused connection abort" :
+        (no_ == WSAECONNRESET) ?
+            "Connection reset by peer" :
+        (no_ == WSAENOBUFS) ?
+            "No buffer space available" :
+        (no_ == WSAEISCONN) ?
+            "Socket is already connected" :
+        (no_ == WSAENOTCONN) ?
+            "Socket is not connected" :
+        (no_ == WSAESHUTDOWN) ?
+            "Can't send after socket shutdown" :
+        (no_ == WSAETOOMANYREFS) ?
+            "Too many references can't splice" :
+        (no_ == WSAETIMEDOUT) ?
+            "Connection timed out" :
+        (no_ == WSAECONNREFUSED) ?
+            "Connection refused" :
+        (no_ == WSAELOOP) ?
+            "Too many levels of symbolic links" :
+        (no_ == WSAENAMETOOLONG) ?
+            "File name too long" :
+        (no_ == WSAEHOSTDOWN) ?
+            "Host is down" :
+        (no_ == WSAEHOSTUNREACH) ?
+            "No Route to Host" :
+        (no_ == WSAENOTEMPTY) ?
+            "Directory not empty" :
+        (no_ == WSAEPROCLIM) ?
+            "Too many processes" :
+        (no_ == WSAEUSERS) ?
+            "Too many users" :
+        (no_ == WSAEDQUOT) ?
+            "Disc Quota Exceeded" :
+        (no_ == WSAESTALE) ?
+            "Stale NFS file handle" :
+        (no_ == WSAEREMOTE) ?
+            "Too many levels of remote in path" :
+        (no_ == WSASYSNOTREADY) ?
+            "Network SubSystem is unavailable" :
+        (no_ == WSAVERNOTSUPPORTED) ?
+            "WINSOCK DLL Version out of range" :
+        (no_ == WSANOTINITIALISED) ?
+            "Successful WSASTARTUP not yet performed" :
+        (no_ == WSAHOST_NOT_FOUND) ?
+            "Host not found" :
+        (no_ == WSATRY_AGAIN) ?
+            "Non-Authoritative Host not found" :
+        (no_ == WSANO_RECOVERY) ?
+            "Non-Recoverable errors: FORMERR REFUSED NOTIMP" :
+        (no_ == WSANO_DATA) ?
+            "Valid name no data record of requested" :
+        "error not defined";
+}
+
+void zmq::win_error (char *buffer_, size_t buffer_size_)
+{
+    DWORD errcode = GetLastError ();
+#if defined _WIN32_WCE
+    DWORD rc = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM |
+        FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errcode, MAKELANGID(LANG_NEUTRAL,
+        SUBLANG_DEFAULT), (LPWSTR)buffer_, buffer_size_ / sizeof(wchar_t), NULL );
+#else
+    DWORD rc = FormatMessageA (FORMAT_MESSAGE_FROM_SYSTEM |
+        FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errcode, MAKELANGID(LANG_NEUTRAL,
+        SUBLANG_DEFAULT), buffer_, (DWORD) buffer_size_, NULL );
+#endif
+    zmq_assert (rc);
+}
+
+int zmq::wsa_error_to_errno (int errcode)
+{
+    switch (errcode) {
+//  10004 - Interrupted system call.
+    case WSAEINTR:
+        return EINTR;
+//  10009 - File handle is not valid.
+    case WSAEBADF:
+        return EBADF;
+//  10013 - Permission denied.
+    case WSAEACCES:
+        return EACCES;
+//  10014 - Bad address.
+    case WSAEFAULT:
+        return EFAULT;
+//  10022 - Invalid argument.
+    case WSAEINVAL:
+        return EINVAL;
+//  10024 - Too many open files.
+    case WSAEMFILE:
+        return EMFILE;
+//  10035 - Operation would block.
+    case WSAEWOULDBLOCK:
+        return EBUSY;
+//  10036 - Operation now in progress.
+    case WSAEINPROGRESS:
+        return EAGAIN;
+//  10037 - Operation already in progress.
+    case WSAEALREADY:
+        return EAGAIN;
+//  10038 - Socket operation on non-socket.
+    case WSAENOTSOCK:
+        return ENOTSOCK;
+//  10039 - Destination address required.
+    case WSAEDESTADDRREQ:
+        return EFAULT;
+//  10040 - Message too long.
+    case WSAEMSGSIZE:
+        return EMSGSIZE;
+//  10041 - Protocol wrong type for socket.
+    case WSAEPROTOTYPE:
+        return EFAULT;
+//  10042 - Bad protocol option.
+    case WSAENOPROTOOPT:
+        return EINVAL;
+//  10043 - Protocol not supported.
+    case WSAEPROTONOSUPPORT:
+        return EPROTONOSUPPORT;
+//  10044 - Socket type not supported.
+    case WSAESOCKTNOSUPPORT:
+        return EFAULT;
+//  10045 - Operation not supported on socket.
+    case WSAEOPNOTSUPP:
+        return EFAULT;
+//  10046 - Protocol family not supported.
+    case WSAEPFNOSUPPORT:
+        return EPROTONOSUPPORT;
+//  10047 - Address family not supported by protocol family.
+    case WSAEAFNOSUPPORT:
+        return EAFNOSUPPORT;
+//  10048 - Address already in use.
+    case WSAEADDRINUSE:
+        return EADDRINUSE;
+//  10049 - Cannot assign requested address.
+    case WSAEADDRNOTAVAIL:
+        return EADDRNOTAVAIL;
+//  10050 - Network is down.
+    case WSAENETDOWN:
+        return ENETDOWN;
+//  10051 - Network is unreachable.
+    case WSAENETUNREACH:
+        return ENETUNREACH;
+//  10052 - Network dropped connection on reset.
+    case WSAENETRESET:
+        return ENETRESET;
+//  10053 - Software caused connection abort.
+    case WSAECONNABORTED:
+        return ECONNABORTED;
+//  10054 - Connection reset by peer.
+    case WSAECONNRESET:
+        return ECONNRESET;
+//  10055 - No buffer space available.
+    case WSAENOBUFS:
+        return ENOBUFS;
+//  10056 - Socket is already connected.
+    case WSAEISCONN:
+        return EFAULT;
+//  10057 - Socket is not connected.
+    case WSAENOTCONN:
+        return ENOTCONN;
+//  10058 - Can't send after socket shutdown.
+    case WSAESHUTDOWN:
+        return EFAULT;
+//  10059 - Too many references can't splice.
+    case WSAETOOMANYREFS:
+        return EFAULT;
+//  10060 - Connection timed out.
+    case WSAETIMEDOUT:
+        return ETIMEDOUT;
+//  10061 - Connection refused.
+    case WSAECONNREFUSED:
+        return ECONNREFUSED;
+//  10062 - Too many levels of symbolic links.
+    case WSAELOOP:
+        return EFAULT;
+//  10063 - File name too long.
+    case WSAENAMETOOLONG:
+        return EFAULT;
+//  10064 - Host is down.
+    case WSAEHOSTDOWN:
+        return EAGAIN;
+//  10065 - No route to host.
+    case WSAEHOSTUNREACH:
+        return EHOSTUNREACH;
+//  10066 - Directory not empty.
+    case WSAENOTEMPTY:
+        return EFAULT;
+//  10067 - Too many processes.
+    case WSAEPROCLIM:
+        return EFAULT;
+//  10068 - Too many users.
+    case WSAEUSERS:
+        return EFAULT;
+//  10069 - Disc Quota Exceeded.
+    case WSAEDQUOT:
+        return EFAULT;
+//  10070 - Stale NFS file handle.
+    case WSAESTALE:
+        return EFAULT;
+//  10071 - Too many levels of remote in path.
+    case WSAEREMOTE:
+        return EFAULT;
+//  10091 - Network SubSystem is unavailable.
+    case WSASYSNOTREADY:
+        return EFAULT;
+//  10092 - WINSOCK DLL Version out of range.
+    case WSAVERNOTSUPPORTED:
+        return EFAULT;
+//  10093 - Successful WSASTARTUP not yet performed.
+    case WSANOTINITIALISED:
+        return EFAULT;
+//  11001 - Host not found.
+    case WSAHOST_NOT_FOUND:
+        return EFAULT;
+//  11002 - Non-Authoritative Host not found.
+    case WSATRY_AGAIN:
+        return EFAULT;
+//  11003 - Non-Recoverable errors: FORMERR REFUSED NOTIMP.
+    case WSANO_RECOVERY:
+        return EFAULT;
+//  11004 - Valid name no data record of requested.
+    case WSANO_DATA:
+        return EFAULT;
+    default:
+        wsa_assert (false);
+    }
+    //  Not reachable
+    return 0;
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/err.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/err.hpp
new file mode 100644
index 00000000..fcefb892
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/err.hpp
@@ -0,0 +1,168 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_ERR_HPP_INCLUDED__
+#define __ZMQ_ERR_HPP_INCLUDED__
+
+#include <assert.h>
+#if defined _WIN32_WCE
+#include "..\builds\msvc\errno.hpp"
+#else
+#include <errno.h>
+#endif
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "platform.hpp"
+#include "likely.hpp"
+
+//  0MQ-specific error codes are defined in zmq.h
+#include "../include/zmq.h"
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <netdb.h>
+#endif
+
+// EPROTO is not used by OpenBSD and maybe other platforms.
+#ifndef EPROTO
+#define EPROTO 0
+#endif
+
+namespace zmq
+{
+    const char *errno_to_string (int errno_);
+    void zmq_abort (const char *errmsg_);
+}
+
+#ifdef ZMQ_HAVE_WINDOWS
+
+namespace zmq
+{
+    const char *wsa_error ();
+    const char *wsa_error_no (int no_);
+    void win_error (char *buffer_, size_t buffer_size_);
+    int wsa_error_to_errno (int errcode);
+}
+
+//  Provides convenient way to check WSA-style errors on Windows.
+#define wsa_assert(x) \
+    do {\
+        if (unlikely (!(x))) {\
+            const char *errstr = zmq::wsa_error ();\
+            if (errstr != NULL) {\
+                fprintf (stderr, "Assertion failed: %s (%s:%d)\n", errstr, \
+                    __FILE__, __LINE__);\
+                zmq::zmq_abort (errstr);\
+            }\
+        }\
+    } while (false)
+
+//  Provides convenient way to assert on WSA-style errors on Windows.
+#define wsa_assert_no(no) \
+    do {\
+        const char *errstr = zmq::wsa_error_no (no);\
+        if (errstr != NULL) {\
+            fprintf (stderr, "Assertion failed: %s (%s:%d)\n", errstr, \
+                __FILE__, __LINE__);\
+            zmq::zmq_abort (errstr);\
+        }\
+    } while (false)
+
+// Provides convenient way to check GetLastError-style errors on Windows.
+#define win_assert(x) \
+    do {\
+        if (unlikely (!(x))) {\
+            char errstr [256];\
+            zmq::win_error (errstr, 256);\
+            fprintf (stderr, "Assertion failed: %s (%s:%d)\n", errstr, \
+                __FILE__, __LINE__);\
+            zmq::zmq_abort (errstr);\
+        }\
+    } while (false)
+
+#endif
+
+//  This macro works in exactly the same way as the normal assert. It is used
+//  in its stead because standard assert on Win32 in broken - it prints nothing
+//  when used within the scope of JNI library.
+#define zmq_assert(x) \
+    do {\
+        if (unlikely (!(x))) {\
+            fprintf (stderr, "Assertion failed: %s (%s:%d)\n", #x, \
+                __FILE__, __LINE__);\
+            zmq::zmq_abort (#x);\
+        }\
+    } while (false)
+
+//  Provides convenient way to check for errno-style errors.
+#define errno_assert(x) \
+    do {\
+        if (unlikely (!(x))) {\
+            const char *errstr = strerror (errno);\
+            fprintf (stderr, "%s (%s:%d)\n", errstr, __FILE__, __LINE__);\
+            zmq::zmq_abort (errstr);\
+        }\
+    } while (false)
+
+//  Provides convenient way to check for POSIX errors.
+#define posix_assert(x) \
+    do {\
+        if (unlikely (x)) {\
+            const char *errstr = strerror (x);\
+            fprintf (stderr, "%s (%s:%d)\n", errstr, __FILE__, __LINE__);\
+            zmq::zmq_abort (errstr);\
+        }\
+    } while (false)
+
+//  Provides convenient way to check for errors from getaddrinfo.
+#define gai_assert(x) \
+    do {\
+        if (unlikely (x)) {\
+            const char *errstr = gai_strerror (x);\
+            fprintf (stderr, "%s (%s:%d)\n", errstr, __FILE__, __LINE__);\
+            zmq::zmq_abort (errstr);\
+        }\
+    } while (false)
+
+//  Provides convenient way to check whether memory allocation have succeeded.
+#define alloc_assert(x) \
+    do {\
+        if (unlikely (!x)) {\
+            fprintf (stderr, "FATAL ERROR: OUT OF MEMORY (%s:%d)\n",\
+                __FILE__, __LINE__);\
+            zmq::zmq_abort ("FATAL ERROR: OUT OF MEMORY");\
+        }\
+    } while (false)
+
+#endif
+
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/fd.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/fd.hpp
new file mode 100644
index 00000000..315c7fae
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/fd.hpp
@@ -0,0 +1,54 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_FD_HPP_INCLUDED__
+#define __ZMQ_FD_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+namespace zmq
+{
+#ifdef ZMQ_HAVE_WINDOWS
+#if defined _MSC_VER &&_MSC_VER <= 1400
+    typedef UINT_PTR fd_t;
+    enum {retired_fd = (fd_t)(~0)};
+#else
+    typedef SOCKET fd_t;
+    enum {retired_fd = (fd_t)INVALID_SOCKET};
+#endif
+#else
+    typedef int fd_t;
+    enum {retired_fd = -1};
+#endif
+}
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/fq.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/fq.cpp
new file mode 100644
index 00000000..9269eb20
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/fq.cpp
@@ -0,0 +1,162 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "fq.hpp"
+#include "pipe.hpp"
+#include "err.hpp"
+#include "msg.hpp"
+
+zmq::fq_t::fq_t () :
+    active (0),
+    last_in (NULL),
+    current (0),
+    more (false)
+{
+}
+
+zmq::fq_t::~fq_t ()
+{
+    zmq_assert (pipes.empty ());
+}
+
+void zmq::fq_t::attach (pipe_t *pipe_)
+{
+    pipes.push_back (pipe_);
+    pipes.swap (active, pipes.size () - 1);
+    active++;
+}
+
+void zmq::fq_t::pipe_terminated (pipe_t *pipe_)
+{
+    const pipes_t::size_type index = pipes.index (pipe_);
+
+    //  Remove the pipe from the list; adjust number of active pipes
+    //  accordingly.
+    if (index < active) {
+        active--;
+        pipes.swap (index, active);
+        if (current == active)
+            current = 0;
+    }
+    pipes.erase (pipe_);
+
+    if (last_in == pipe_) {
+        saved_credential = last_in->get_credential ();
+        last_in = NULL;
+    }
+}
+
+void zmq::fq_t::activated (pipe_t *pipe_)
+{
+    //  Move the pipe to the list of active pipes.
+    pipes.swap (pipes.index (pipe_), active);
+    active++;
+}
+
+int zmq::fq_t::recv (msg_t *msg_)
+{
+    return recvpipe (msg_, NULL);
+}
+
+int zmq::fq_t::recvpipe (msg_t *msg_, pipe_t **pipe_)
+{
+    //  Deallocate old content of the message.
+    int rc = msg_->close ();
+    errno_assert (rc == 0);
+
+    //  Round-robin over the pipes to get the next message.
+    while (active > 0) {
+
+        //  Try to fetch new message. If we've already read part of the message
+        //  subsequent part should be immediately available.
+        bool fetched = pipes [current]->read (msg_);
+
+        //  Note that when message is not fetched, current pipe is deactivated
+        //  and replaced by another active pipe. Thus we don't have to increase
+        //  the 'current' pointer.
+        if (fetched) {
+            if (pipe_)
+                *pipe_ = pipes [current];
+            more = msg_->flags () & msg_t::more? true: false;
+            if (!more) {
+                last_in = pipes [current];
+                current = (current + 1) % active;
+            }
+            return 0;
+        }
+
+        //  Check the atomicity of the message.
+        //  If we've already received the first part of the message
+        //  we should get the remaining parts without blocking.
+        zmq_assert (!more);
+
+        active--;
+        pipes.swap (current, active);
+        if (current == active)
+            current = 0;
+    }
+
+    //  No message is available. Initialise the output parameter
+    //  to be a 0-byte message.
+    rc = msg_->init ();
+    errno_assert (rc == 0);
+    errno = EAGAIN;
+    return -1;
+}
+
+bool zmq::fq_t::has_in ()
+{
+    //  There are subsequent parts of the partly-read message available.
+    if (more)
+        return true;
+
+    //  Note that messing with current doesn't break the fairness of fair
+    //  queueing algorithm. If there are no messages available current will
+    //  get back to its original value. Otherwise it'll point to the first
+    //  pipe holding messages, skipping only pipes with no messages available.
+    while (active > 0) {
+        if (pipes [current]->check_read ())
+            return true;
+
+        //  Deactivate the pipe.
+        active--;
+        pipes.swap (current, active);
+        if (current == active)
+            current = 0;
+    }
+
+    return false;
+}
+
+zmq::blob_t zmq::fq_t::get_credential () const
+{
+    return last_in?
+        last_in->get_credential (): saved_credential;
+}
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/fq.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/fq.hpp
new file mode 100644
index 00000000..6c06c691
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/fq.hpp
@@ -0,0 +1,92 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_FQ_HPP_INCLUDED__
+#define __ZMQ_FQ_HPP_INCLUDED__
+
+#include "array.hpp"
+#include "blob.hpp"
+#include "pipe.hpp"
+#include "msg.hpp"
+
+namespace zmq
+{
+
+    //  Class manages a set of inbound pipes. On receive it performs fair
+    //  queueing so that senders gone berserk won't cause denial of
+    //  service for decent senders.
+
+    class fq_t
+    {
+    public:
+
+        fq_t ();
+        ~fq_t ();
+
+        void attach (pipe_t *pipe_);
+        void activated (pipe_t *pipe_);
+        void pipe_terminated (pipe_t *pipe_);
+
+        int recv (msg_t *msg_);
+        int recvpipe (msg_t *msg_, pipe_t **pipe_);
+        bool has_in ();
+        blob_t get_credential () const;
+
+    private:
+
+        //  Inbound pipes.
+        typedef array_t <pipe_t, 1> pipes_t;
+        pipes_t pipes;
+
+        //  Number of active pipes. All the active pipes are located at the
+        //  beginning of the pipes array.
+        pipes_t::size_type active;
+
+        //  Pointer to the last pipe we received message from.
+        //  NULL when no message has been received or the pipe
+        //  has terminated.
+        pipe_t *last_in;
+
+        //  Index of the next bound pipe to read a message from.
+        pipes_t::size_type current;
+
+        //  If true, part of a multipart message was already received, but
+        //  there are following parts still waiting in the current pipe.
+        bool more;
+
+        //  Holds credential after the last_acive_pipe has terminated.
+        blob_t saved_credential;
+
+        fq_t (const fq_t&);
+        const fq_t &operator = (const fq_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_client.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_client.cpp
new file mode 100644
index 00000000..3373c7ed
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_client.cpp
@@ -0,0 +1,230 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+
+#ifdef HAVE_LIBGSSAPI_KRB5
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include <string.h>
+#include <string>
+
+#include "msg.hpp"
+#include "session_base.hpp"
+#include "err.hpp"
+#include "gssapi_client.hpp"
+#include "wire.hpp"
+
+zmq::gssapi_client_t::gssapi_client_t (const options_t &options_) :
+    gssapi_mechanism_base_t (options_),
+    state (call_next_init),
+    token_ptr (GSS_C_NO_BUFFER),
+    mechs (),
+    security_context_established (false)
+{
+    const std::string::size_type service_size = options_.gss_service_principal.size();
+    service_name = static_cast <char *>(malloc(service_size+1));
+    assert(service_name);
+    memcpy(service_name, options_.gss_service_principal.c_str(), service_size+1 );
+
+    maj_stat = GSS_S_COMPLETE;
+    if(!options_.gss_principal.empty())
+    {
+        const std::string::size_type principal_size = options_.gss_principal.size();
+        principal_name = static_cast <char *>(malloc(principal_size+1));
+        assert(principal_name);
+        memcpy(principal_name, options_.gss_principal.c_str(), principal_size+1 );
+
+        if (acquire_credentials (principal_name, &cred) != 0)
+            maj_stat = GSS_S_FAILURE;
+    }
+
+    mechs.elements = NULL;
+    mechs.count = 0;
+}
+
+zmq::gssapi_client_t::~gssapi_client_t ()
+{
+    if(service_name)
+        free (service_name);
+    if(cred)
+        gss_release_cred(&min_stat, &cred);
+}
+
+int zmq::gssapi_client_t::next_handshake_command (msg_t *msg_)
+{
+    if (state == send_ready) {
+        int rc = produce_ready(msg_);
+        if (rc == 0)
+            state = connected;
+
+        return rc;
+    }
+
+    if (state != call_next_init) {
+        errno = EAGAIN;
+        return -1;
+    }
+
+    if (initialize_context () < 0)
+        return -1;
+
+    if (produce_next_token (msg_) < 0)
+        return -1;
+
+    if (maj_stat != GSS_S_CONTINUE_NEEDED && maj_stat != GSS_S_COMPLETE)
+        return -1;
+
+    if (maj_stat == GSS_S_COMPLETE) {
+        security_context_established = true;
+        state = recv_ready;
+    }
+    else
+        state = recv_next_token;
+
+    return 0;
+}
+
+int zmq::gssapi_client_t::process_handshake_command (msg_t *msg_)
+{
+    if (state == recv_ready) {
+        int rc = process_ready(msg_);
+        if (rc == 0)
+            state = send_ready;
+
+        return rc;
+    }
+
+    if (state != recv_next_token) {
+        errno = EPROTO;
+        return -1;
+    }
+
+    if (process_next_token (msg_) < 0)
+        return -1;
+
+    if (maj_stat != GSS_S_COMPLETE && maj_stat != GSS_S_CONTINUE_NEEDED)
+        return -1;
+
+    state = call_next_init;
+
+    errno_assert (msg_->close () == 0);
+    errno_assert (msg_->init () == 0);
+
+    return 0;
+}
+
+int zmq::gssapi_client_t::encode (msg_t *msg_)
+{
+    zmq_assert (state == connected);
+
+    if (do_encryption)
+      return encode_message (msg_);
+
+    return 0;
+}
+
+int zmq::gssapi_client_t::decode (msg_t *msg_)
+{
+    zmq_assert (state == connected);
+
+    if (do_encryption)
+      return decode_message (msg_);
+
+    return 0;
+}
+
+zmq::mechanism_t::status_t zmq::gssapi_client_t::status () const
+{
+    return state == connected? mechanism_t::ready: mechanism_t::handshaking;
+}
+
+int zmq::gssapi_client_t::initialize_context ()
+{
+    // First time through, import service_name into target_name
+    if (target_name == GSS_C_NO_NAME) {
+        send_tok.value = service_name;
+        send_tok.length = strlen(service_name);
+        OM_uint32 maj = gss_import_name(&min_stat, &send_tok,
+                                        GSS_C_NT_HOSTBASED_SERVICE,
+                                        &target_name);
+
+        if (maj != GSS_S_COMPLETE)
+            return -1;
+    }
+
+    maj_stat = gss_init_sec_context(&init_sec_min_stat, cred, &context,
+                                    target_name, mechs.elements,
+                                    gss_flags, 0, NULL, token_ptr, NULL,
+                                    &send_tok, &ret_flags, NULL);
+
+    if (token_ptr != GSS_C_NO_BUFFER)
+        free(recv_tok.value);
+
+    return 0;
+}
+
+int zmq::gssapi_client_t::produce_next_token (msg_t *msg_)
+{
+    if (send_tok.length != 0) { // Server expects another token
+        if (produce_initiate(msg_, send_tok.value, send_tok.length) < 0) {
+            gss_release_buffer(&min_stat, &send_tok);
+            gss_release_name(&min_stat, &target_name);
+            return -1;
+        }
+    }
+    gss_release_buffer(&min_stat, &send_tok);
+
+    if (maj_stat != GSS_S_COMPLETE && maj_stat != GSS_S_CONTINUE_NEEDED) {
+        gss_release_name(&min_stat, &target_name);
+        if (context != GSS_C_NO_CONTEXT)
+            gss_delete_sec_context(&min_stat, &context, GSS_C_NO_BUFFER);
+        return -1;
+    }
+
+    return 0;
+}
+
+int zmq::gssapi_client_t::process_next_token (msg_t *msg_)
+{
+    if (maj_stat == GSS_S_CONTINUE_NEEDED) {
+        if (process_initiate(msg_, &recv_tok.value, recv_tok.length) < 0) {
+            gss_release_name(&min_stat, &target_name);
+            return -1;
+        }
+        token_ptr = &recv_tok;
+    }
+
+    return 0;
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_client.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_client.hpp
new file mode 100644
index 00000000..7bc9d5af
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_client.hpp
@@ -0,0 +1,93 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_GSSAPI_CLIENT_HPP_INCLUDED__
+#define __ZMQ_GSSAPI_CLIENT_HPP_INCLUDED__
+
+#ifdef HAVE_LIBGSSAPI_KRB5
+
+#include "gssapi_mechanism_base.hpp"
+
+namespace zmq
+{
+
+    class msg_t;
+
+    class gssapi_client_t :
+        public gssapi_mechanism_base_t
+    {
+    public:
+
+        gssapi_client_t (const options_t &options_);
+        virtual ~gssapi_client_t ();
+
+        // mechanism implementation
+        virtual int next_handshake_command (msg_t *msg_);
+        virtual int process_handshake_command (msg_t *msg_);
+        virtual int encode (msg_t *msg_);
+        virtual int decode (msg_t *msg_);
+        virtual status_t status () const;
+
+    private:
+
+        enum state_t {
+            call_next_init,
+            send_next_token,
+            recv_next_token,
+            send_ready,
+            recv_ready,
+            connected
+        };
+
+        //  Human-readable principal name of the service we are connecting to
+        char * service_name;
+
+        //  Current FSM state
+        state_t state;
+
+        //  Points to either send_tok or recv_tok
+        //  during context initialization
+        gss_buffer_desc *token_ptr;
+
+        //  The desired underlying mechanism
+        gss_OID_set_desc mechs;
+
+        //  True iff client considers the server authenticated
+        bool security_context_established;
+
+        int initialize_context ();
+        int produce_next_token (msg_t *msg_);
+        int process_next_token (msg_t *msg_);
+    };
+
+}
+
+#endif
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_mechanism_base.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_mechanism_base.cpp
new file mode 100644
index 00000000..355f1528
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_mechanism_base.cpp
@@ -0,0 +1,347 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+
+#ifdef HAVE_LIBGSSAPI_KRB5
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include <string.h>
+#include <string>
+
+#include "msg.hpp"
+#include "session_base.hpp"
+#include "err.hpp"
+#include "gssapi_mechanism_base.hpp"
+#include "wire.hpp"
+
+zmq::gssapi_mechanism_base_t::gssapi_mechanism_base_t (const options_t & options_) :
+    mechanism_t(options_),
+    send_tok (),
+    recv_tok (),
+    /// FIXME remove? in_buf (),
+    target_name (GSS_C_NO_NAME),
+    principal_name (NULL),
+    maj_stat (GSS_S_COMPLETE),
+    min_stat (0),
+    init_sec_min_stat (0),
+    ret_flags (0),
+    gss_flags (GSS_C_MUTUAL_FLAG | GSS_C_REPLAY_FLAG),
+    cred (GSS_C_NO_CREDENTIAL),
+    context (GSS_C_NO_CONTEXT),
+    do_encryption (!options_.gss_plaintext)
+{
+}
+
+zmq::gssapi_mechanism_base_t::~gssapi_mechanism_base_t ()
+{
+    if(target_name)
+        gss_release_name(&min_stat, &target_name);
+    if(context)
+        gss_delete_sec_context(&min_stat, &context, GSS_C_NO_BUFFER);
+}
+
+int zmq::gssapi_mechanism_base_t::encode_message (msg_t *msg_)
+{
+    // Wrap the token value
+    int state;
+    gss_buffer_desc plaintext;
+    gss_buffer_desc wrapped;
+
+    uint8_t flags = 0;
+    if (msg_->flags () & msg_t::more)
+        flags |= 0x01;
+
+    uint8_t *plaintext_buffer = static_cast <uint8_t *>(malloc(msg_->size ()+1));
+    plaintext_buffer[0] = flags;
+    memcpy (plaintext_buffer+1, msg_->data(), msg_->size());
+
+    plaintext.value = plaintext_buffer;
+    plaintext.length = msg_->size ()+1;
+
+    maj_stat = gss_wrap(&min_stat, context, 1, GSS_C_QOP_DEFAULT,
+                        &plaintext, &state, &wrapped);
+
+    zmq_assert (maj_stat == GSS_S_COMPLETE);
+    zmq_assert (state);
+
+    // Re-initialize msg_ for wrapped text
+    int rc = msg_->close ();
+    zmq_assert (rc == 0);
+
+    rc = msg_->init_size (8 + 4 + wrapped.length);
+    zmq_assert (rc == 0);
+
+    uint8_t *ptr = static_cast <uint8_t *> (msg_->data ());
+
+    // Add command string
+    memcpy (ptr, "\x07MESSAGE", 8);
+    ptr += 8;
+
+    // Add token length
+    put_uint32 (ptr, static_cast <uint32_t> (wrapped.length));
+    ptr += 4;
+
+    // Add wrapped token value
+    memcpy (ptr, wrapped.value, wrapped.length);
+    ptr += wrapped.length;
+
+    gss_release_buffer (&min_stat, &wrapped);
+
+    return 0;
+}
+
+int zmq::gssapi_mechanism_base_t::decode_message (msg_t *msg_)
+{
+    const uint8_t *ptr = static_cast <uint8_t *> (msg_->data ());
+    size_t bytes_left = msg_->size ();
+
+    // Get command string
+    if (bytes_left < 8 || memcmp (ptr, "\x07MESSAGE", 8)) {
+        errno = EPROTO;
+        return -1;
+    }
+    ptr += 8;
+    bytes_left -= 8;
+
+    // Get token length
+    if (bytes_left < 4) {
+        errno = EPROTO;
+        return -1;
+    }
+    gss_buffer_desc wrapped;
+    wrapped.length = get_uint32 (ptr);
+    ptr += 4;
+    bytes_left -= 4;
+
+    // Get token value
+    if (bytes_left < wrapped.length) {
+        errno = EPROTO;
+        return -1;
+    }
+    // TODO: instead of malloc/memcpy, can we just do: wrapped.value = ptr;
+    const size_t alloc_length = wrapped.length? wrapped.length: 1;
+    wrapped.value = static_cast <char *> (malloc (alloc_length));
+    if (wrapped.length) {
+        alloc_assert (wrapped.value);
+        memcpy(wrapped.value, ptr, wrapped.length);
+        ptr += wrapped.length;
+        bytes_left -= wrapped.length;
+    }
+
+    // Unwrap the token value
+    int state;
+    gss_buffer_desc plaintext;
+    maj_stat = gss_unwrap(&min_stat, context, &wrapped, &plaintext,
+                          &state, (gss_qop_t *) NULL);
+
+    zmq_assert(maj_stat == GSS_S_COMPLETE);
+    zmq_assert(state);
+
+    // Re-initialize msg_ for plaintext
+    int rc = msg_->close ();
+    zmq_assert (rc == 0);
+
+    rc = msg_->init_size (plaintext.length-1);
+    zmq_assert (rc == 0);
+
+    const uint8_t flags = static_cast <char *> (plaintext.value)[0];
+    if (flags & 0x01)
+	    msg_->set_flags (msg_t::more);
+
+    memcpy (msg_->data (), static_cast <char *> (plaintext.value)+1, plaintext.length-1);
+
+    gss_release_buffer (&min_stat, &plaintext);
+    gss_release_buffer (&min_stat, &wrapped);
+
+    if (bytes_left > 0) {
+        errno = EPROTO;
+        return -1;
+    }
+
+    return 0;
+}
+
+int zmq::gssapi_mechanism_base_t::produce_initiate (msg_t *msg_, void *token_value_, size_t token_length_)
+{
+    zmq_assert (token_value_);
+    zmq_assert (token_length_ <= 0xFFFFFFFFUL);
+
+    const size_t command_size = 9 + 4 + token_length_;
+
+    const int rc = msg_->init_size (command_size);
+    errno_assert (rc == 0);
+
+    uint8_t *ptr = static_cast <uint8_t *> (msg_->data ());
+
+    // Add command string
+    memcpy (ptr, "\x08INITIATE", 9);
+    ptr += 9;
+
+    // Add token length
+    put_uint32 (ptr, static_cast <uint32_t> (token_length_));
+    ptr += 4;
+
+    // Add token value
+    memcpy (ptr, token_value_, token_length_);
+    ptr += token_length_;
+
+    return 0;
+}
+
+int zmq::gssapi_mechanism_base_t::process_initiate (msg_t *msg_, void **token_value_, size_t &token_length_)
+{
+    zmq_assert (token_value_);
+
+    const uint8_t *ptr = static_cast <uint8_t *> (msg_->data ());
+    size_t bytes_left = msg_->size ();
+
+    // Get command string
+    if (bytes_left < 9 || memcmp (ptr, "\x08INITIATE", 9)) {
+        errno = EPROTO;
+        return -1;
+    }
+    ptr += 9;
+    bytes_left -= 9;
+
+    // Get token length
+    if (bytes_left < 4) {
+        errno = EPROTO;
+        return -1;
+    }
+    token_length_ = get_uint32 (ptr);
+    ptr += 4;
+    bytes_left -= 4;
+
+    // Get token value
+    if (bytes_left < token_length_) {
+        errno = EPROTO;
+        return -1;
+    }
+    *token_value_ = static_cast <char *> (malloc (token_length_ ? token_length_ : 1));
+    if (token_length_) {
+        alloc_assert (*token_value_);
+        memcpy(*token_value_, ptr, token_length_);
+        ptr += token_length_;
+        bytes_left -= token_length_;
+    }
+
+    if (bytes_left > 0) {
+        errno = EPROTO;
+        return -1;
+    }
+
+    return 0;
+}
+
+int zmq::gssapi_mechanism_base_t::produce_ready (msg_t *msg_)
+{
+    unsigned char * const command_buffer = (unsigned char *) malloc (512);
+    alloc_assert (command_buffer);
+
+    unsigned char *ptr = command_buffer;
+
+    //  Add command name
+    memcpy (ptr, "\x05READY", 6);
+    ptr += 6;
+
+    //  Add socket type property
+    const char *socket_type = socket_type_string (options.type);
+    ptr += add_property (ptr, "Socket-Type", socket_type, strlen (socket_type));
+
+    //  Add identity property
+    if (options.type == ZMQ_REQ
+    ||  options.type == ZMQ_DEALER
+    ||  options.type == ZMQ_ROUTER)
+        ptr += add_property (ptr, "Identity", options.identity, options.identity_size);
+
+    const size_t command_size = ptr - command_buffer;
+    const int rc = msg_->init_size (command_size);
+    errno_assert (rc == 0);
+    memcpy (msg_->data (), command_buffer, command_size);
+    free (command_buffer);
+
+    if (do_encryption)
+        return encode_message (msg_);
+
+    return 0;
+}
+
+int zmq::gssapi_mechanism_base_t::process_ready (msg_t *msg_)
+{
+    if (do_encryption) {
+        const int rc = decode_message (msg_);
+        if (rc != 0)
+            return rc;
+    }
+
+    const unsigned char *ptr = static_cast <unsigned char *> (msg_->data ());
+    size_t bytes_left = msg_->size ();
+
+    if (bytes_left < 6 || memcmp (ptr, "\x05READY", 6)) {
+        errno = EPROTO;
+        return -1;
+    }
+    ptr += 6;
+    bytes_left -= 6;
+    return parse_metadata (ptr, bytes_left);
+}
+
+int zmq::gssapi_mechanism_base_t::acquire_credentials (char * service_name_, gss_cred_id_t * cred_)
+{
+    OM_uint32 maj_stat;
+    OM_uint32 min_stat;
+    gss_name_t server_name;
+
+    gss_buffer_desc name_buf;
+    name_buf.value = service_name_;
+    name_buf.length = strlen ((char *) name_buf.value) + 1;
+
+    maj_stat = gss_import_name (&min_stat, &name_buf,
+                                GSS_C_NT_HOSTBASED_SERVICE, &server_name);
+
+    if (maj_stat != GSS_S_COMPLETE)
+        return -1;
+
+    maj_stat = gss_acquire_cred (&min_stat, server_name, 0,
+                                 GSS_C_NO_OID_SET, GSS_C_ACCEPT,
+                                 cred_, NULL, NULL);
+
+    if (maj_stat != GSS_S_COMPLETE)
+        return -1;
+
+    gss_release_name(&min_stat, &server_name);
+
+    return 0;
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_mechanism_base.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_mechanism_base.hpp
new file mode 100644
index 00000000..1e26a950
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_mechanism_base.hpp
@@ -0,0 +1,132 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_GSSAPI_MECHANISM_BASE_HPP_INCLUDED__
+#define __ZMQ_GSSAPI_MECHANISM_BASE_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#ifdef HAVE_LIBGSSAPI_KRB5
+
+#ifndef ZMQ_HAVE_FREEBSD
+#include <gssapi/gssapi_generic.h>
+#endif
+#include <gssapi/gssapi_krb5.h>
+
+#include "mechanism.hpp"
+#include "options.hpp"
+
+namespace zmq
+{
+
+    class msg_t;
+
+    /// Commonalities between clients and servers are captured here.
+    /// For example, clients and servers both need to produce and
+    /// process context-level GSSAPI tokens (via INITIATE commands)
+    /// and per-message GSSAPI tokens (via MESSAGE commands).
+    class gssapi_mechanism_base_t:
+        public mechanism_t
+    {
+    public:
+        gssapi_mechanism_base_t (const options_t &options_);
+        virtual ~gssapi_mechanism_base_t () = 0;
+
+    protected:
+        //  Produce a context-level GSSAPI token (INITIATE command)
+        //  during security context initialization.
+        int produce_initiate (msg_t *msg_, void *data_, size_t data_len_);
+
+        //  Process a context-level GSSAPI token (INITIATE command)
+        //  during security context initialization.
+        int process_initiate (msg_t *msg_, void **data_, size_t &data_len_);
+
+        // Produce a metadata ready msg (READY) to conclude handshake
+        int produce_ready (msg_t *msg_);
+
+        // Process a metadata ready msg (READY)
+        int process_ready (msg_t *msg_);
+
+        //  Encode a per-message GSSAPI token (MESSAGE command) using
+        //  the established security context.
+        int encode_message (msg_t *msg_);
+
+        //  Decode a per-message GSSAPI token (MESSAGE command) using
+        //  the  established security context.
+        int decode_message (msg_t *msg_);
+
+        //  Acquire security context credentials from the
+        //  underlying mechanism.
+        static int acquire_credentials (char * principal_name_,
+                                        gss_cred_id_t * cred_);
+
+    protected:
+        //  Opaque GSSAPI token for outgoing data
+        gss_buffer_desc send_tok;
+
+        //  Opaque GSSAPI token for incoming data
+        gss_buffer_desc recv_tok;
+
+        //  Opaque GSSAPI representation of principal
+        gss_name_t target_name;
+
+        //  Human-readable principal name
+        char * principal_name;
+
+        //  Status code returned by GSSAPI functions
+        OM_uint32 maj_stat;
+
+        //  Status code returned by the underlying mechanism
+        OM_uint32 min_stat;
+
+        //  Status code returned by the underlying mechanism
+        //  during context initialization
+        OM_uint32 init_sec_min_stat;
+
+        //  Flags returned by GSSAPI (ignored)
+        OM_uint32 ret_flags;
+
+        //  Flags returned by GSSAPI (ignored)
+        OM_uint32 gss_flags;
+
+        //  Credentials used to establish security context
+        gss_cred_id_t cred;
+
+        //  Opaque GSSAPI representation of the security context
+        gss_ctx_id_t context;
+
+        //  If true, use gss to encrypt messages. If false, only utilize gss for auth.
+        bool do_encryption;
+    };
+
+}
+
+#endif
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_server.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_server.cpp
new file mode 100644
index 00000000..97f3f9b5
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_server.cpp
@@ -0,0 +1,377 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+
+#ifdef HAVE_LIBGSSAPI_KRB5
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include <string.h>
+#include <string>
+
+#include "msg.hpp"
+#include "session_base.hpp"
+#include "err.hpp"
+#include "gssapi_server.hpp"
+#include "wire.hpp"
+
+#include <gssapi/gssapi.h>
+
+zmq::gssapi_server_t::gssapi_server_t (session_base_t *session_,
+                                       const std::string &peer_address_,
+                                       const options_t &options_) :
+    gssapi_mechanism_base_t (options_),
+    session (session_),
+    peer_address (peer_address_),
+    state (recv_next_token),
+    security_context_established (false)
+{
+    maj_stat = GSS_S_CONTINUE_NEEDED;
+    if(!options_.gss_principal.empty())
+    {
+        const std::string::size_type principal_size = options_.gss_principal.size();
+        principal_name = static_cast <char *>(malloc(principal_size+1));
+        assert(principal_name);
+        memcpy(principal_name, options_.gss_principal.c_str(), principal_size+1 );
+
+        if (acquire_credentials (principal_name, &cred) != 0)
+            maj_stat = GSS_S_FAILURE;
+    }
+}
+
+zmq::gssapi_server_t::~gssapi_server_t ()
+{
+    if(cred)
+        gss_release_cred(&min_stat, &cred);
+
+    if(target_name)
+        gss_release_name(&min_stat, &target_name);
+}
+
+int zmq::gssapi_server_t::next_handshake_command (msg_t *msg_)
+{
+    if (state == send_ready) {
+        int rc = produce_ready(msg_);
+        if (rc == 0)
+            state = recv_ready;
+
+        return rc;
+    }
+
+    if (state != send_next_token) {
+        errno = EAGAIN;
+        return -1;
+    }
+
+    if (produce_next_token (msg_) < 0)
+        return -1;
+
+    if (maj_stat != GSS_S_CONTINUE_NEEDED && maj_stat != GSS_S_COMPLETE)
+        return -1;
+
+    if (maj_stat == GSS_S_COMPLETE) {
+        security_context_established = true;
+    }
+
+    state = recv_next_token;
+
+    return 0;
+}
+
+int zmq::gssapi_server_t::process_handshake_command (msg_t *msg_)
+{
+    if (state == recv_ready) {
+        int rc = process_ready(msg_);
+        if (rc == 0)
+            state = connected;
+
+        return rc;
+    }
+
+    if (state != recv_next_token) {
+        errno = EPROTO;
+        return -1;
+    }
+
+    if (security_context_established) {
+     	//  Use ZAP protocol (RFC 27) to authenticate the user.
+        bool expecting_zap_reply = false;
+        int rc = session->zap_connect ();
+        if (rc == 0) {
+            send_zap_request();
+            rc = receive_and_process_zap_reply ();
+            if (rc != 0) {
+                if (errno != EAGAIN)
+                    return -1;
+                expecting_zap_reply = true;
+            }
+        }
+        state = expecting_zap_reply? expect_zap_reply: send_ready;
+        return 0;
+    }
+
+    if (process_next_token (msg_) < 0)
+        return -1;
+
+    accept_context ();
+    state = send_next_token;
+
+    errno_assert (msg_->close () == 0);
+    errno_assert (msg_->init () == 0);
+
+    return 0;
+}
+
+void zmq::gssapi_server_t::send_zap_request ()
+{
+    int rc;
+    msg_t msg;
+
+    //  Address delimiter frame
+    rc = msg.init ();
+    errno_assert (rc == 0);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Version frame
+    rc = msg.init_size (3);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), "1.0", 3);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Request ID frame
+    rc = msg.init_size (1);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), "1", 1);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Domain frame
+    rc = msg.init_size (options.zap_domain.length ());
+    errno_assert (rc == 0);
+    memcpy (msg.data (), options.zap_domain.c_str (), options.zap_domain.length ());
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Address frame
+    rc = msg.init_size (peer_address.length ());
+    errno_assert (rc == 0);
+    memcpy (msg.data (), peer_address.c_str (), peer_address.length ());
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Identity frame
+    rc = msg.init_size (options.identity_size);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), options.identity, options.identity_size);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Mechanism frame
+    rc = msg.init_size (6);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), "GSSAPI", 6);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Principal frame
+    gss_buffer_desc principal;
+    gss_display_name(&min_stat, target_name, &principal, NULL);
+
+    rc = msg.init_size (principal.length);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), principal.value, principal.length);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+    gss_release_buffer(&min_stat, &principal);
+}
+
+int zmq::gssapi_server_t::receive_and_process_zap_reply ()
+{
+    int rc = 0;
+    msg_t msg [7];  //  ZAP reply consists of 7 frames
+
+    //  Initialize all reply frames
+    for (int i = 0; i < 7; i++) {
+        rc = msg [i].init ();
+        errno_assert (rc == 0);
+    }
+
+    for (int i = 0; i < 7; i++) {
+        rc = session->read_zap_msg (&msg [i]);
+        if (rc == -1)
+            break;
+        if ((msg [i].flags () & msg_t::more) == (i < 6? 0: msg_t::more)) {
+            errno = EPROTO;
+            rc = -1;
+            break;
+        }
+    }
+
+    if (rc != 0)
+        goto error;
+
+    //  Address delimiter frame
+    if (msg [0].size () > 0) {
+        rc = -1;
+        errno = EPROTO;
+        goto error;
+    }
+
+    //  Version frame
+    if (msg [1].size () != 3 || memcmp (msg [1].data (), "1.0", 3)) {
+        rc = -1;
+        errno = EPROTO;
+        goto error;
+    }
+
+    //  Request id frame
+    if (msg [2].size () != 1 || memcmp (msg [2].data (), "1", 1)) {
+        rc = -1;
+        errno = EPROTO;
+        goto error;
+    }
+
+    //  Status code frame
+    if (msg [3].size () != 3 || memcmp (msg [3].data (), "200", 3)) {
+        rc = -1;
+        errno = EACCES;
+        goto error;
+    }
+
+    //  Save user id
+    set_user_id (msg [5].data (), msg [5].size ());
+
+    //  Process metadata frame
+    rc = parse_metadata (static_cast <const unsigned char*> (msg [6].data ()),
+                         msg [6].size (), true);
+
+error:
+    for (int i = 0; i < 7; i++) {
+        const int rc2 = msg [i].close ();
+        errno_assert (rc2 == 0);
+    }
+
+    return rc;
+}
+
+
+int zmq::gssapi_server_t::encode (msg_t *msg_)
+{
+    zmq_assert (state == connected);
+
+    if (do_encryption)
+      return encode_message (msg_);
+
+    return 0;
+}
+
+int zmq::gssapi_server_t::decode (msg_t *msg_)
+{
+    zmq_assert (state == connected);
+
+    if (do_encryption)
+      return decode_message (msg_);
+
+    return 0;
+}
+
+int zmq::gssapi_server_t::zap_msg_available ()
+{
+    if (state != expect_zap_reply) {
+        errno = EFSM;
+        return -1;
+    }
+    const int rc = receive_and_process_zap_reply ();
+    if (rc == 0)
+        state = send_ready;
+    return rc;
+}
+
+zmq::mechanism_t::status_t zmq::gssapi_server_t::status () const
+{
+    return state == connected? mechanism_t::ready: mechanism_t::handshaking;
+}
+
+int zmq::gssapi_server_t::produce_next_token (msg_t *msg_)
+{
+    if (send_tok.length != 0) { // Client expects another token
+        if (produce_initiate(msg_, send_tok.value, send_tok.length) < 0)
+            return -1;
+        gss_release_buffer(&min_stat, &send_tok);
+    }
+
+    if (maj_stat != GSS_S_COMPLETE && maj_stat != GSS_S_CONTINUE_NEEDED) {
+        gss_release_name(&min_stat, &target_name);
+        if (context != GSS_C_NO_CONTEXT)
+            gss_delete_sec_context(&min_stat, &context, GSS_C_NO_BUFFER);
+        return -1;
+    }
+
+    return 0;
+}
+
+int zmq::gssapi_server_t::process_next_token (msg_t *msg_)
+{
+    if (maj_stat == GSS_S_CONTINUE_NEEDED) {
+        if (process_initiate(msg_, &recv_tok.value, recv_tok.length) < 0) {
+            if (target_name != GSS_C_NO_NAME)
+                gss_release_name(&min_stat, &target_name);
+            return -1;
+        }
+    }
+
+    return 0;
+}
+
+void zmq::gssapi_server_t::accept_context ()
+{
+    maj_stat = gss_accept_sec_context(&init_sec_min_stat, &context, cred,
+                                      &recv_tok, GSS_C_NO_CHANNEL_BINDINGS,
+                                      &target_name, &doid, &send_tok,
+                                      &ret_flags, NULL, NULL);
+
+    if (recv_tok.value) {
+        free (recv_tok.value);
+        recv_tok.value = NULL;
+    }
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_server.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_server.hpp
new file mode 100644
index 00000000..c3782230
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/gssapi_server.hpp
@@ -0,0 +1,96 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_GSSAPI_SERVER_HPP_INCLUDED__
+#define __ZMQ_GSSAPI_SERVER_HPP_INCLUDED__
+
+#ifdef HAVE_LIBGSSAPI_KRB5
+
+#include "gssapi_mechanism_base.hpp"
+
+namespace zmq
+{
+
+    class msg_t;
+    class session_base_t;
+
+    class gssapi_server_t :
+        public gssapi_mechanism_base_t
+    {
+    public:
+
+        gssapi_server_t (session_base_t *session_,
+                            const std::string &peer_address,
+                            const options_t &options_);
+        virtual ~gssapi_server_t ();
+
+        // mechanism implementation
+        virtual int next_handshake_command (msg_t *msg_);
+        virtual int process_handshake_command (msg_t *msg_);
+        virtual int encode (msg_t *msg_);
+        virtual int decode (msg_t *msg_);
+        virtual int zap_msg_available ();
+        virtual status_t status () const;
+
+    private:
+
+        enum state_t {
+            send_next_token,
+            recv_next_token,
+            expect_zap_reply,
+            send_ready,
+            recv_ready,
+            connected
+        };
+
+        session_base_t * const session;
+
+        const std::string peer_address;
+
+        //  Current FSM state
+        state_t state;
+
+        //  True iff server considers the client authenticated
+        bool security_context_established;
+
+        //  The underlying mechanism type (ignored)
+        gss_OID doid;
+
+        void accept_context ();
+        int produce_next_token (msg_t *msg_);
+        int process_next_token (msg_t *msg_);
+	void send_zap_request ();
+	int receive_and_process_zap_reply();
+    };
+
+}
+
+#endif
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/i_decoder.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/i_decoder.hpp
new file mode 100644
index 00000000..b003cf81
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/i_decoder.hpp
@@ -0,0 +1,61 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_I_DECODER_HPP_INCLUDED__
+#define __ZMQ_I_DECODER_HPP_INCLUDED__
+
+#include "stdint.hpp"
+
+namespace zmq
+{
+
+    class msg_t;
+
+    //  Interface to be implemented by message decoder.
+
+    class i_decoder
+    {
+    public:
+        virtual ~i_decoder () {}
+
+        virtual void get_buffer (unsigned char **data_, size_t *size_) = 0;
+
+        //  Decodes data pointed to by data_.
+        //  When a message is decoded, 1 is returned.
+        //  When the decoder needs more data, 0 is returnd.
+        //  On error, -1 is returned and errno is set accordingly.
+        virtual int decode (const unsigned char *data_, size_t size_,
+                            size_t &processed) = 0;
+
+        virtual msg_t *msg () = 0;
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/i_encoder.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/i_encoder.hpp
new file mode 100644
index 00000000..eb341e57
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/i_encoder.hpp
@@ -0,0 +1,60 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_I_ENCODER_HPP_INCLUDED__
+#define __ZMQ_I_ENCODER_HPP_INCLUDED__
+
+#include "stdint.hpp"
+
+namespace zmq
+{
+
+    //  Forward declaration
+    class msg_t;
+
+    //  Interface to be implemented by message encoder.
+
+    struct i_encoder
+    {
+        virtual ~i_encoder () {}
+
+        //  The function returns a batch of binary data. The data
+        //  are filled to a supplied buffer. If no buffer is supplied (data_
+        //  is NULL) encoder will provide buffer of its own.
+        //  Function returns 0 when a new message is required.
+        virtual size_t encode (unsigned char **data_, size_t size) = 0;
+
+        //  Load a new message into encoder.
+        virtual void load_msg (msg_t *msg_) = 0;
+
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/i_engine.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/i_engine.hpp
new file mode 100644
index 00000000..7a61e8e9
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/i_engine.hpp
@@ -0,0 +1,65 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_I_ENGINE_HPP_INCLUDED__
+#define __ZMQ_I_ENGINE_HPP_INCLUDED__
+
+namespace zmq
+{
+
+    class io_thread_t;
+
+    //  Abstract interface to be implemented by various engines.
+
+    struct i_engine
+    {
+        virtual ~i_engine () {}
+
+        //  Plug the engine to the session.
+        virtual void plug (zmq::io_thread_t *io_thread_,
+            class session_base_t *session_) = 0;
+
+        //  Terminate and deallocate the engine. Note that 'detached'
+        //  events are not fired on termination.
+        virtual void terminate () = 0;
+
+        //  This method is called by the session to signalise that more
+        //  messages can be written to the pipe.
+        virtual void restart_input () = 0;
+
+        //  This method is called by the session to signalise that there
+        //  are messages to send available.
+        virtual void restart_output () = 0;
+
+        virtual void zap_msg_available () = 0;
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/i_poll_events.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/i_poll_events.hpp
new file mode 100644
index 00000000..e42556bb
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/i_poll_events.hpp
@@ -0,0 +1,55 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_I_POLL_EVENTS_HPP_INCLUDED__
+#define __ZMQ_I_POLL_EVENTS_HPP_INCLUDED__
+
+namespace zmq
+{
+
+    // Virtual interface to be exposed by object that want to be notified
+    // about events on file descriptors.
+
+    struct i_poll_events
+    {
+        virtual ~i_poll_events () {}
+
+        // Called by I/O thread when file descriptor is ready for reading.
+        virtual void in_event () = 0;
+
+        // Called by I/O thread when file descriptor is ready for writing.
+        virtual void out_event () = 0;
+
+        // Called when timer expires.
+        virtual void timer_event (int id_) = 0;
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/io_object.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/io_object.cpp
new file mode 100644
index 00000000..71067bc0
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/io_object.cpp
@@ -0,0 +1,116 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "io_object.hpp"
+#include "io_thread.hpp"
+#include "err.hpp"
+
+zmq::io_object_t::io_object_t (io_thread_t *io_thread_) :
+    poller (NULL)
+{
+    if (io_thread_)
+        plug (io_thread_);
+}
+
+zmq::io_object_t::~io_object_t ()
+{
+}
+
+void zmq::io_object_t::plug (io_thread_t *io_thread_)
+{
+    zmq_assert (io_thread_);
+    zmq_assert (!poller);
+
+    //  Retrieve the poller from the thread we are running in.
+    poller = io_thread_->get_poller ();
+}
+
+void zmq::io_object_t::unplug ()
+{
+    zmq_assert (poller);
+
+    //  Forget about old poller in preparation to be migrated
+    //  to a different I/O thread.
+    poller = NULL;
+}
+
+zmq::io_object_t::handle_t zmq::io_object_t::add_fd (fd_t fd_)
+{
+    return poller->add_fd (fd_, this);
+}
+
+void zmq::io_object_t::rm_fd (handle_t handle_)
+{
+    poller->rm_fd (handle_);
+}
+
+void zmq::io_object_t::set_pollin (handle_t handle_)
+{
+    poller->set_pollin (handle_);
+}
+
+void zmq::io_object_t::reset_pollin (handle_t handle_)
+{
+    poller->reset_pollin (handle_);
+}
+
+void zmq::io_object_t::set_pollout (handle_t handle_)
+{
+    poller->set_pollout (handle_);
+}
+
+void zmq::io_object_t::reset_pollout (handle_t handle_)
+{
+    poller->reset_pollout (handle_);
+}
+
+void zmq::io_object_t::add_timer (int timeout_, int id_)
+{
+    poller->add_timer (timeout_, this, id_);
+}
+
+void zmq::io_object_t::cancel_timer (int id_)
+{
+    poller->cancel_timer (this, id_);
+}
+
+void zmq::io_object_t::in_event ()
+{
+    zmq_assert (false);
+}
+
+void zmq::io_object_t::out_event ()
+{
+    zmq_assert (false);
+}
+
+void zmq::io_object_t::timer_event (int)
+{
+    zmq_assert (false);
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/io_object.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/io_object.hpp
new file mode 100644
index 00000000..d414678d
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/io_object.hpp
@@ -0,0 +1,89 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_IO_OBJECT_HPP_INCLUDED__
+#define __ZMQ_IO_OBJECT_HPP_INCLUDED__
+
+#include <stddef.h>
+
+#include "stdint.hpp"
+#include "poller.hpp"
+#include "i_poll_events.hpp"
+
+namespace zmq
+{
+
+    class io_thread_t;
+
+    //  Simple base class for objects that live in I/O threads.
+    //  It makes communication with the poller object easier and
+    //  makes defining unneeded event handlers unnecessary.
+
+    class io_object_t : public i_poll_events
+    {
+    public:
+
+        io_object_t (zmq::io_thread_t *io_thread_ = NULL);
+        ~io_object_t ();
+
+        //  When migrating an object from one I/O thread to another, first
+        //  unplug it, then migrate it, then plug it to the new thread.
+        void plug (zmq::io_thread_t *io_thread_);
+        void unplug ();
+
+    protected:
+
+        typedef poller_t::handle_t handle_t;
+
+        //  Methods to access underlying poller object.
+        handle_t add_fd (fd_t fd_);
+        void rm_fd (handle_t handle_);
+        void set_pollin (handle_t handle_);
+        void reset_pollin (handle_t handle_);
+        void set_pollout (handle_t handle_);
+        void reset_pollout (handle_t handle_);
+        void add_timer (int timout_, int id_);
+        void cancel_timer (int id_);
+
+        //  i_poll_events interface implementation.
+        void in_event ();
+        void out_event ();
+        void timer_event (int id_);
+
+    private:
+
+        poller_t *poller;
+
+        io_object_t (const io_object_t&);
+        const io_object_t &operator = (const io_object_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/io_thread.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/io_thread.cpp
new file mode 100644
index 00000000..8c394d4a
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/io_thread.cpp
@@ -0,0 +1,112 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <new>
+
+#include "io_thread.hpp"
+#include "platform.hpp"
+#include "err.hpp"
+#include "ctx.hpp"
+
+zmq::io_thread_t::io_thread_t (ctx_t *ctx_, uint32_t tid_) :
+    object_t (ctx_, tid_)
+{
+    poller = new (std::nothrow) poller_t (*ctx_);
+    alloc_assert (poller);
+
+    mailbox_handle = poller->add_fd (mailbox.get_fd (), this);
+    poller->set_pollin (mailbox_handle);
+}
+
+zmq::io_thread_t::~io_thread_t ()
+{
+    delete poller;
+}
+
+void zmq::io_thread_t::start ()
+{
+    //  Start the underlying I/O thread.
+    poller->start ();
+}
+
+void zmq::io_thread_t::stop ()
+{
+    send_stop ();
+}
+
+zmq::mailbox_t *zmq::io_thread_t::get_mailbox ()
+{
+    return &mailbox;
+}
+
+int zmq::io_thread_t::get_load ()
+{
+    return poller->get_load ();
+}
+
+void zmq::io_thread_t::in_event ()
+{
+    //  TODO: Do we want to limit number of commands I/O thread can
+    //  process in a single go?
+
+    command_t cmd;
+    int rc = mailbox.recv (&cmd, 0);
+
+    while (rc == 0 || errno == EINTR) {
+        if (rc == 0)
+            cmd.destination->process_command (cmd);
+        rc = mailbox.recv (&cmd, 0);
+    }
+
+    errno_assert (rc != 0 && errno == EAGAIN);
+}
+
+void zmq::io_thread_t::out_event ()
+{
+    //  We are never polling for POLLOUT here. This function is never called.
+    zmq_assert (false);
+}
+
+void zmq::io_thread_t::timer_event (int)
+{
+    //  No timers here. This function is never called.
+    zmq_assert (false);
+}
+
+zmq::poller_t *zmq::io_thread_t::get_poller ()
+{
+    zmq_assert (poller);
+    return poller;
+}
+
+void zmq::io_thread_t::process_stop ()
+{
+    poller->rm_fd (mailbox_handle);
+    poller->stop ();
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/io_thread.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/io_thread.hpp
new file mode 100644
index 00000000..b1f0e3e9
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/io_thread.hpp
@@ -0,0 +1,99 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_IO_THREAD_HPP_INCLUDED__
+#define __ZMQ_IO_THREAD_HPP_INCLUDED__
+
+#include <vector>
+
+#include "stdint.hpp"
+#include "object.hpp"
+#include "poller.hpp"
+#include "i_poll_events.hpp"
+#include "mailbox.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+
+    //  Generic part of the I/O thread. Polling-mechanism-specific features
+    //  are implemented in separate "polling objects".
+
+    class io_thread_t : public object_t, public i_poll_events
+    {
+    public:
+
+        io_thread_t (zmq::ctx_t *ctx_, uint32_t tid_);
+
+        //  Clean-up. If the thread was started, it's neccessary to call 'stop'
+        //  before invoking destructor. Otherwise the destructor would hang up.
+        ~io_thread_t ();
+
+        //  Launch the physical thread.
+        void start ();
+
+        //  Ask underlying thread to stop.
+        void stop ();
+
+        //  Returns mailbox associated with this I/O thread.
+        mailbox_t *get_mailbox ();
+
+        //  i_poll_events implementation.
+        void in_event ();
+        void out_event ();
+        void timer_event (int id_);
+
+        //  Used by io_objects to retrieve the assciated poller object.
+        poller_t *get_poller ();
+
+        //  Command handlers.
+        void process_stop ();
+
+        //  Returns load experienced by the I/O thread.
+        int get_load ();
+
+    private:
+
+        //  I/O thread accesses incoming commands via this mailbox.
+        mailbox_t mailbox;
+
+        //  Handle associated with mailbox' file descriptor.
+        poller_t::handle_t mailbox_handle;
+
+        //  I/O multiplexing is performed using a poller object.
+        poller_t *poller;
+
+        io_thread_t (const io_thread_t&);
+        const io_thread_t &operator = (const io_thread_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ip.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ip.cpp
new file mode 100644
index 00000000..d17f19c9
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ip.cpp
@@ -0,0 +1,176 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "ip.hpp"
+#include "err.hpp"
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#endif
+
+#if defined ZMQ_HAVE_OPENVMS
+#include <ioctl.h>
+#endif
+
+zmq::fd_t zmq::open_socket (int domain_, int type_, int protocol_)
+{
+    //  Setting this option result in sane behaviour when exec() functions
+    //  are used. Old sockets are closed and don't block TCP ports etc.
+#if defined ZMQ_HAVE_SOCK_CLOEXEC
+    type_ |= SOCK_CLOEXEC;
+#endif
+
+    fd_t s = socket (domain_, type_, protocol_);
+#ifdef ZMQ_HAVE_WINDOWS
+    if (s == INVALID_SOCKET)
+        return INVALID_SOCKET;
+#else
+    if (s == -1)
+        return -1;
+#endif
+
+    //  If there's no SOCK_CLOEXEC, let's try the second best option. Note that
+    //  race condition can cause socket not to be closed (if fork happens
+    //  between socket creation and this point).
+#if !defined ZMQ_HAVE_SOCK_CLOEXEC && defined FD_CLOEXEC
+    int rc = fcntl (s, F_SETFD, FD_CLOEXEC);
+    errno_assert (rc != -1);
+#endif
+
+    //  On Windows, preventing sockets to be inherited by child processes.
+#if defined ZMQ_HAVE_WINDOWS && defined HANDLE_FLAG_INHERIT
+    BOOL brc = SetHandleInformation ((HANDLE) s, HANDLE_FLAG_INHERIT, 0);
+    win_assert (brc);
+#endif
+
+    return s;
+}
+
+void zmq::unblock_socket (fd_t s_)
+{
+#if defined ZMQ_HAVE_WINDOWS
+    u_long nonblock = 1;
+    int rc = ioctlsocket (s_, FIONBIO, &nonblock);
+    wsa_assert (rc != SOCKET_ERROR);
+#elif defined ZMQ_HAVE_OPENVMS
+    int nonblock = 1;
+    int rc = ioctl (s_, FIONBIO, &nonblock);
+    errno_assert (rc != -1);
+#else
+    int flags = fcntl (s_, F_GETFL, 0);
+    if (flags == -1)
+        flags = 0;
+    int rc = fcntl (s_, F_SETFL, flags | O_NONBLOCK);
+    errno_assert (rc != -1);
+#endif
+}
+
+void zmq::enable_ipv4_mapping (fd_t s_)
+{
+  (void) s_;
+
+#ifdef IPV6_V6ONLY
+#ifdef ZMQ_HAVE_WINDOWS
+    DWORD flag = 0;
+#else
+    int flag = 0;
+#endif
+    int rc = setsockopt (s_, IPPROTO_IPV6, IPV6_V6ONLY, (const char*) &flag,
+        sizeof (flag));
+#ifdef ZMQ_HAVE_WINDOWS
+    wsa_assert (rc != SOCKET_ERROR);
+#else
+    errno_assert (rc == 0);
+#endif
+#endif
+}
+
+int zmq::get_peer_ip_address (fd_t sockfd_, std::string &ip_addr_)
+{
+    int rc;
+    struct sockaddr_storage ss;
+
+#if defined ZMQ_HAVE_HPUX || defined ZMQ_HAVE_WINDOWS
+    int addrlen = static_cast <int> (sizeof ss);
+#else
+    socklen_t addrlen = sizeof ss;
+#endif
+    rc = getpeername (sockfd_, (struct sockaddr*) &ss, &addrlen);
+#ifdef ZMQ_HAVE_WINDOWS
+    if (rc == SOCKET_ERROR) {
+        wsa_assert (WSAGetLastError () != WSANOTINITIALISED &&
+                    WSAGetLastError () != WSAEFAULT &&
+                    WSAGetLastError () != WSAEINPROGRESS &&
+                    WSAGetLastError () != WSAENOTSOCK);
+        return 0;
+    }
+#else
+    if (rc == -1) {
+        errno_assert (errno != EBADF &&
+                      errno != EFAULT &&
+                      errno != ENOTSOCK);
+        return 0;
+    }
+#endif
+
+    char host [NI_MAXHOST];
+    rc = getnameinfo ((struct sockaddr*) &ss, addrlen, host, sizeof host,
+        NULL, 0, NI_NUMERICHOST);
+    if (rc != 0)
+        return 0;
+
+    ip_addr_ = host;
+
+    union {
+        struct sockaddr sa;
+        struct sockaddr_storage sa_stor;
+    } u;
+
+    u.sa_stor = ss;
+    return (int) u.sa.sa_family;
+}
+
+void zmq::set_ip_type_of_service (fd_t s_, int iptos)
+{
+    int rc = setsockopt(s_, IPPROTO_IP, IP_TOS, reinterpret_cast<const char*>(&iptos), sizeof(iptos));
+
+#ifdef ZMQ_HAVE_WINDOWS
+    wsa_assert (rc != SOCKET_ERROR);
+#else
+    errno_assert (rc == 0);
+#endif
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ip.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ip.hpp
new file mode 100644
index 00000000..7ea3f15a
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ip.hpp
@@ -0,0 +1,57 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_IP_HPP_INCLUDED__
+#define __ZMQ_IP_HPP_INCLUDED__
+
+#include <string>
+#include "fd.hpp"
+
+namespace zmq
+{
+
+    //  Same as socket(2), but allows for transparent tweaking the options.
+    fd_t open_socket (int domain_, int type_, int protocol_);
+
+    //  Sets the socket into non-blocking mode.
+    void unblock_socket (fd_t s_);
+
+    //  Enable IPv4-mapping of addresses in case it is disabled by default.
+    void enable_ipv4_mapping (fd_t s_);
+
+    //  Returns string representation of peer's address.
+    //  Socket sockfd_ must be connected. Returns true iff successful.
+    int get_peer_ip_address (fd_t sockfd_, std::string &ip_addr_);
+
+    // Sets the IP Type-Of-Service for the underlying socket
+    void set_ip_type_of_service (fd_t s_, int iptos);
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_address.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_address.cpp
new file mode 100644
index 00000000..ba247600
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_address.cpp
@@ -0,0 +1,105 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "ipc_address.hpp"
+
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+
+#include "err.hpp"
+
+#include <string>
+#include <sstream>
+
+zmq::ipc_address_t::ipc_address_t ()
+{
+    memset (&address, 0, sizeof address);
+}
+
+zmq::ipc_address_t::ipc_address_t (const sockaddr *sa, socklen_t sa_len)
+{
+    zmq_assert (sa && sa_len > 0);
+
+    memset (&address, 0, sizeof address);
+    if (sa->sa_family == AF_UNIX)
+        memcpy(&address, sa, sa_len);
+}
+
+zmq::ipc_address_t::~ipc_address_t ()
+{
+}
+
+int zmq::ipc_address_t::resolve (const char *path_)
+{
+    if (strlen (path_) >= sizeof address.sun_path) {
+        errno = ENAMETOOLONG;
+        return -1;
+    }
+    if (path_ [0] == '@' && !path_ [1]) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    address.sun_family = AF_UNIX;
+    strcpy (address.sun_path, path_);
+    /* Abstract sockets start with '\0' */
+    if (path_ [0] == '@')
+        *address.sun_path = '\0';
+    return 0;
+}
+
+int zmq::ipc_address_t::to_string (std::string &addr_)
+{
+    if (address.sun_family != AF_UNIX) {
+        addr_.clear ();
+        return -1;
+    }
+
+    std::stringstream s;
+    s << "ipc://";
+    if (!address.sun_path [0] && address.sun_path [1])
+       s << "@" << address.sun_path + 1;
+    else
+       s << address.sun_path;
+    addr_ = s.str ();
+    return 0;
+}
+
+const sockaddr *zmq::ipc_address_t::addr () const
+{
+    return (sockaddr*) &address;
+}
+
+socklen_t zmq::ipc_address_t::addrlen () const
+{
+    if (!address.sun_path [0] && address.sun_path [1])
+        return (socklen_t) strlen (address.sun_path + 1) + sizeof (sa_family_t) + 1;
+    return (socklen_t) sizeof address;
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_address.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_address.hpp
new file mode 100644
index 00000000..27c299aa
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_address.hpp
@@ -0,0 +1,76 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_IPC_ADDRESS_HPP_INCLUDED__
+#define __ZMQ_IPC_ADDRESS_HPP_INCLUDED__
+
+#include <string>
+
+#include "platform.hpp"
+
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+
+#include <sys/socket.h>
+#include <sys/un.h>
+
+namespace zmq
+{
+
+    class ipc_address_t
+    {
+    public:
+
+        ipc_address_t ();
+        ipc_address_t (const sockaddr *sa, socklen_t sa_len);
+        ~ipc_address_t ();
+
+        //  This function sets up the address for UNIX domain transport.
+        int resolve (const char *path_);
+
+        //  The opposite to resolve()
+        int to_string (std::string &addr_);
+
+        const sockaddr *addr () const;
+        socklen_t addrlen () const;
+
+    private:
+
+        struct sockaddr_un address;
+
+        ipc_address_t (const ipc_address_t&);
+        const ipc_address_t &operator = (const ipc_address_t&);
+    };
+
+}
+
+#endif
+
+#endif
+
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_connecter.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_connecter.cpp
new file mode 100644
index 00000000..34abb568
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_connecter.cpp
@@ -0,0 +1,275 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "ipc_connecter.hpp"
+
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+
+#include <new>
+#include <string>
+
+#include "stream_engine.hpp"
+#include "io_thread.hpp"
+#include "platform.hpp"
+#include "random.hpp"
+#include "err.hpp"
+#include "ip.hpp"
+#include "address.hpp"
+#include "ipc_address.hpp"
+#include "session_base.hpp"
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+zmq::ipc_connecter_t::ipc_connecter_t (class io_thread_t *io_thread_,
+      class session_base_t *session_, const options_t &options_,
+      const address_t *addr_, bool delayed_start_) :
+    own_t (io_thread_, options_),
+    io_object_t (io_thread_),
+    addr (addr_),
+    s (retired_fd),
+    handle_valid (false),
+    delayed_start (delayed_start_),
+    timer_started (false),
+    session (session_),
+    current_reconnect_ivl(options.reconnect_ivl)
+{
+    zmq_assert (addr);
+    zmq_assert (addr->protocol == "ipc");
+    addr->to_string (endpoint);
+    socket = session-> get_socket();
+}
+
+zmq::ipc_connecter_t::~ipc_connecter_t ()
+{
+    zmq_assert (!timer_started);
+    zmq_assert (!handle_valid);
+    zmq_assert (s == retired_fd);
+}
+
+void zmq::ipc_connecter_t::process_plug ()
+{
+    if (delayed_start)
+        add_reconnect_timer ();
+    else
+        start_connecting ();
+}
+
+void zmq::ipc_connecter_t::process_term (int linger_)
+{
+    if (timer_started) {
+        cancel_timer (reconnect_timer_id);
+        timer_started = false;
+    }
+
+    if (handle_valid) {
+        rm_fd (handle);
+        handle_valid = false;
+    }
+
+    if (s != retired_fd)
+        close ();
+
+    own_t::process_term (linger_);
+}
+
+void zmq::ipc_connecter_t::in_event ()
+{
+    //  We are not polling for incomming data, so we are actually called
+    //  because of error here. However, we can get error on out event as well
+    //  on some platforms, so we'll simply handle both events in the same way.
+    out_event ();
+}
+
+void zmq::ipc_connecter_t::out_event ()
+{
+    fd_t fd = connect ();
+    rm_fd (handle);
+    handle_valid = false;
+
+    //  Handle the error condition by attempt to reconnect.
+    if (fd == retired_fd) {
+        close ();
+        add_reconnect_timer();
+        return;
+    }
+    //  Create the engine object for this connection.
+    stream_engine_t *engine = new (std::nothrow)
+        stream_engine_t (fd, options, endpoint);
+    alloc_assert (engine);
+
+    //  Attach the engine to the corresponding session object.
+    send_attach (session, engine);
+
+    //  Shut the connecter down.
+    terminate ();
+
+    socket->event_connected (endpoint, fd);
+}
+
+void zmq::ipc_connecter_t::timer_event (int id_)
+{
+    zmq_assert (id_ == reconnect_timer_id);
+    timer_started = false;
+    start_connecting ();
+}
+
+void zmq::ipc_connecter_t::start_connecting ()
+{
+    //  Open the connecting socket.
+    int rc = open ();
+
+    //  Connect may succeed in synchronous manner.
+    if (rc == 0) {
+        handle = add_fd (s);
+        handle_valid = true;
+        out_event ();
+    }
+
+    //  Connection establishment may be delayed. Poll for its completion.
+    else
+    if (rc == -1 && errno == EINPROGRESS) {
+        handle = add_fd (s);
+        handle_valid = true;
+        set_pollout (handle);
+        socket->event_connect_delayed (endpoint, zmq_errno());
+    }
+
+    //  Handle any other error condition by eventual reconnect.
+    else {
+        if (s != retired_fd)
+            close ();
+        add_reconnect_timer ();
+    }
+}
+
+void zmq::ipc_connecter_t::add_reconnect_timer()
+{
+    int rc_ivl = get_new_reconnect_ivl();
+    add_timer (rc_ivl, reconnect_timer_id);
+    socket->event_connect_retried (endpoint, rc_ivl);
+    timer_started = true;
+}
+
+int zmq::ipc_connecter_t::get_new_reconnect_ivl ()
+{
+    //  The new interval is the current interval + random value.
+    int this_interval = current_reconnect_ivl +
+        (generate_random () % options.reconnect_ivl);
+
+    //  Only change the current reconnect interval  if the maximum reconnect
+    //  interval was set and if it's larger than the reconnect interval.
+    if (options.reconnect_ivl_max > 0 &&
+        options.reconnect_ivl_max > options.reconnect_ivl) {
+
+        //  Calculate the next interval
+        current_reconnect_ivl = current_reconnect_ivl * 2;
+        if(current_reconnect_ivl >= options.reconnect_ivl_max) {
+            current_reconnect_ivl = options.reconnect_ivl_max;
+        }
+    }
+    return this_interval;
+}
+
+int zmq::ipc_connecter_t::open ()
+{
+    zmq_assert (s == retired_fd);
+
+    //  Create the socket.
+    s = open_socket (AF_UNIX, SOCK_STREAM, 0);
+    if (s == -1)
+        return -1;
+
+    //  Set the non-blocking flag.
+    unblock_socket (s);
+
+    //  Connect to the remote peer.
+    int rc = ::connect (
+        s, addr->resolved.ipc_addr->addr (),
+        addr->resolved.ipc_addr->addrlen ());
+
+    //  Connect was successfull immediately.
+    if (rc == 0)
+        return 0;
+
+    //  Translate other error codes indicating asynchronous connect has been
+    //  launched to a uniform EINPROGRESS.
+    if (rc == -1 && errno == EINTR) {
+        errno = EINPROGRESS;
+        return -1;
+    }
+
+    //  Forward the error.
+    return -1;
+}
+
+int zmq::ipc_connecter_t::close ()
+{
+    zmq_assert (s != retired_fd);
+    int rc = ::close (s);
+    errno_assert (rc == 0);
+    socket->event_closed (endpoint, s);
+    s = retired_fd;
+    return 0;
+}
+
+zmq::fd_t zmq::ipc_connecter_t::connect ()
+{
+    //  Following code should handle both Berkeley-derived socket
+    //  implementations and Solaris.
+    int err = 0;
+#if defined ZMQ_HAVE_HPUX
+    int len = sizeof (err);
+#else
+    socklen_t len = sizeof (err);
+#endif
+    int rc = getsockopt (s, SOL_SOCKET, SO_ERROR, (char*) &err, &len);
+    if (rc == -1)
+        err = errno;
+    if (err != 0) {
+
+        //  Assert if the error was caused by 0MQ bug.
+        //  Networking problems are OK. No need to assert.
+        errno = err;
+        errno_assert (errno == ECONNREFUSED || errno == ECONNRESET ||
+            errno == ETIMEDOUT || errno == EHOSTUNREACH ||
+            errno == ENETUNREACH || errno == ENETDOWN);
+
+        return retired_fd;
+    }
+
+    fd_t result = s;
+    s = retired_fd;
+    return result;
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_connecter.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_connecter.hpp
new file mode 100644
index 00000000..5c032063
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_connecter.hpp
@@ -0,0 +1,137 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __IPC_CONNECTER_HPP_INCLUDED__
+#define __IPC_CONNECTER_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+
+#include "fd.hpp"
+#include "own.hpp"
+#include "stdint.hpp"
+#include "io_object.hpp"
+
+namespace zmq
+{
+
+    class io_thread_t;
+    class session_base_t;
+    struct address_t;
+
+    class ipc_connecter_t : public own_t, public io_object_t
+    {
+    public:
+
+        //  If 'delayed_start' is true connecter first waits for a while,
+        //  then starts connection process.
+        ipc_connecter_t (zmq::io_thread_t *io_thread_,
+            zmq::session_base_t *session_, const options_t &options_,
+            const address_t *addr_, bool delayed_start_);
+        ~ipc_connecter_t ();
+
+    private:
+
+        //  ID of the timer used to delay the reconnection.
+        enum {reconnect_timer_id = 1};
+
+        //  Handlers for incoming commands.
+        void process_plug ();
+        void process_term (int linger_);
+
+        //  Handlers for I/O events.
+        void in_event ();
+        void out_event ();
+        void timer_event (int id_);
+
+        //  Internal function to start the actual connection establishment.
+        void start_connecting ();
+
+        //  Internal function to add a reconnect timer
+        void add_reconnect_timer();
+
+        //  Internal function to return a reconnect backoff delay.
+        //  Will modify the current_reconnect_ivl used for next call
+        //  Returns the currently used interval
+        int get_new_reconnect_ivl ();
+
+        //  Open IPC connecting socket. Returns -1 in case of error,
+        //  0 if connect was successfull immediately. Returns -1 with
+        //  EAGAIN errno if async connect was launched.
+        int open ();
+
+        //  Close the connecting socket.
+        int close ();
+
+        //  Get the file descriptor of newly created connection. Returns
+        //  retired_fd if the connection was unsuccessfull.
+        fd_t connect ();
+
+        //  Address to connect to. Owned by session_base_t.
+        const address_t *addr;
+
+        //  Underlying socket.
+        fd_t s;
+
+        //  Handle corresponding to the listening socket.
+        handle_t handle;
+
+        //  If true file descriptor is registered with the poller and 'handle'
+        //  contains valid value.
+        bool handle_valid;
+
+        //  If true, connecter is waiting a while before trying to connect.
+        const bool delayed_start;
+
+        //  True iff a timer has been started.
+        bool timer_started;
+
+        //  Reference to the session we belong to.
+        zmq::session_base_t *session;
+
+        //  Current reconnect ivl, updated for backoff strategy
+        int current_reconnect_ivl;
+
+        // String representation of endpoint to connect to
+        std::string endpoint;
+
+        // Socket
+        zmq::socket_base_t *socket;
+
+        ipc_connecter_t (const ipc_connecter_t&);
+        const ipc_connecter_t &operator = (const ipc_connecter_t&);
+    };
+
+}
+
+#endif
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_listener.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_listener.cpp
new file mode 100644
index 00000000..5c2a028f
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_listener.cpp
@@ -0,0 +1,315 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "ipc_listener.hpp"
+
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+
+#include <new>
+
+#include <string.h>
+
+#include "stream_engine.hpp"
+#include "ipc_address.hpp"
+#include "io_thread.hpp"
+#include "session_base.hpp"
+#include "config.hpp"
+#include "err.hpp"
+#include "ip.hpp"
+#include "socket_base.hpp"
+
+#include <unistd.h>
+#include <sys/socket.h>
+#include <fcntl.h>
+#include <sys/un.h>
+
+#if defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED
+#   include <sys/types.h>
+#endif
+#ifdef ZMQ_HAVE_SO_PEERCRED
+#   include <pwd.h>
+#   include <grp.h>
+#   if defined ZMQ_HAVE_OPENBSD
+#       define ucred sockpeercred
+#   endif
+#endif
+
+zmq::ipc_listener_t::ipc_listener_t (io_thread_t *io_thread_,
+      socket_base_t *socket_, const options_t &options_) :
+    own_t (io_thread_, options_),
+    io_object_t (io_thread_),
+    has_file (false),
+    s (retired_fd),
+    socket (socket_)
+{
+}
+
+zmq::ipc_listener_t::~ipc_listener_t ()
+{
+    zmq_assert (s == retired_fd);
+}
+
+void zmq::ipc_listener_t::process_plug ()
+{
+    //  Start polling for incoming connections.
+    handle = add_fd (s);
+    set_pollin (handle);
+}
+
+void zmq::ipc_listener_t::process_term (int linger_)
+{
+    rm_fd (handle);
+    close ();
+    own_t::process_term (linger_);
+}
+
+void zmq::ipc_listener_t::in_event ()
+{
+    fd_t fd = accept ();
+
+    //  If connection was reset by the peer in the meantime, just ignore it.
+    //  TODO: Handle specific errors like ENFILE/EMFILE etc.
+    if (fd == retired_fd) {
+        socket->event_accept_failed (endpoint, zmq_errno());
+        return;
+    }
+
+    //  Create the engine object for this connection.
+    stream_engine_t *engine = new (std::nothrow)
+        stream_engine_t (fd, options, endpoint);
+    alloc_assert (engine);
+
+    //  Choose I/O thread to run connecter in. Given that we are already
+    //  running in an I/O thread, there must be at least one available.
+    io_thread_t *io_thread = choose_io_thread (options.affinity);
+    zmq_assert (io_thread);
+
+    //  Create and launch a session object.
+    session_base_t *session = session_base_t::create (io_thread, false, socket,
+        options, NULL);
+    errno_assert (session);
+    session->inc_seqnum ();
+    launch_child (session);
+    send_attach (session, engine, false);
+    socket->event_accepted (endpoint, fd);
+}
+
+int zmq::ipc_listener_t::get_address (std::string &addr_)
+{
+    struct sockaddr_storage ss;
+#ifdef ZMQ_HAVE_HPUX
+    int sl = sizeof (ss);
+#else
+    socklen_t sl = sizeof (ss);
+#endif
+    int rc = getsockname (s, (sockaddr *) &ss, &sl);
+    if (rc != 0) {
+        addr_.clear ();
+        return rc;
+    }
+
+    ipc_address_t addr ((struct sockaddr *) &ss, sl);
+    return addr.to_string (addr_);
+}
+
+int zmq::ipc_listener_t::set_address (const char *addr_)
+{
+    //  Create addr on stack for auto-cleanup
+    std::string addr (addr_);
+
+    //  Allow wildcard file
+    if (addr [0] == '*') {
+        char buffer [12] = "2134XXXXXX";
+        int fd = mkstemp (buffer);
+        if (fd == -1)
+            return -1;
+        addr.assign (buffer);
+        ::close (fd);
+    }
+
+    //  Get rid of the file associated with the UNIX domain socket that
+    //  may have been left behind by the previous run of the application.
+    ::unlink (addr.c_str());
+    filename.clear ();
+
+    //  Initialise the address structure.
+    ipc_address_t address;
+    int rc = address.resolve (addr.c_str());
+    if (rc != 0)
+        return -1;
+
+    //  Create a listening socket.
+    s = open_socket (AF_UNIX, SOCK_STREAM, 0);
+    if (s == -1)
+        return -1;
+
+    address.to_string (endpoint);
+
+    //  Bind the socket to the file path.
+    rc = bind (s, address.addr (), address.addrlen ());
+    if (rc != 0)
+        goto error;
+
+    filename.assign (addr.c_str());
+    has_file = true;
+
+    //  Listen for incoming connections.
+    rc = listen (s, options.backlog);
+    if (rc != 0)
+        goto error;
+
+    socket->event_listening (endpoint, s);
+    return 0;
+
+error:
+    int err = errno;
+    close ();
+    errno = err;
+    return -1;
+}
+
+int zmq::ipc_listener_t::close ()
+{
+    zmq_assert (s != retired_fd);
+    int rc = ::close (s);
+    errno_assert (rc == 0);
+
+    s = retired_fd;
+
+    //  If there's an underlying UNIX domain socket, get rid of the file it
+    //  is associated with.
+    if (has_file && !filename.empty ()) {
+        rc = ::unlink(filename.c_str ());
+        if (rc != 0) {
+            socket->event_close_failed (endpoint, zmq_errno());
+            return -1;
+        }
+    }
+
+    socket->event_closed (endpoint, s);
+    return 0;
+}
+
+#if defined ZMQ_HAVE_SO_PEERCRED
+
+bool zmq::ipc_listener_t::filter (fd_t sock)
+{
+    if (options.ipc_uid_accept_filters.empty () &&
+        options.ipc_pid_accept_filters.empty () &&
+        options.ipc_gid_accept_filters.empty ())
+        return true;
+
+    struct ucred cred;
+    socklen_t size = sizeof (cred);
+
+    if (getsockopt (sock, SOL_SOCKET, SO_PEERCRED, &cred, &size))
+        return false;
+    if (options.ipc_uid_accept_filters.find (cred.uid) != options.ipc_uid_accept_filters.end () ||
+            options.ipc_gid_accept_filters.find (cred.gid) != options.ipc_gid_accept_filters.end () ||
+            options.ipc_pid_accept_filters.find (cred.pid) != options.ipc_pid_accept_filters.end ())
+        return true;
+
+    struct passwd *pw;
+    struct group *gr;
+
+    if (!(pw = getpwuid (cred.uid)))
+        return false;
+    for (options_t::ipc_gid_accept_filters_t::const_iterator it = options.ipc_gid_accept_filters.begin ();
+            it != options.ipc_gid_accept_filters.end (); it++) {
+        if (!(gr = getgrgid (*it)))
+            continue;
+        for (char **mem = gr->gr_mem; *mem; mem++) {
+            if (!strcmp (*mem, pw->pw_name))
+                return true;
+        }
+    }
+    return false;
+}
+
+#elif defined ZMQ_HAVE_LOCAL_PEERCRED
+
+bool zmq::ipc_listener_t::filter (fd_t sock)
+{
+    if (options.ipc_uid_accept_filters.empty () &&
+        options.ipc_gid_accept_filters.empty ())
+        return true;
+
+    struct xucred cred;
+    socklen_t size = sizeof (cred);
+
+    if (getsockopt (sock, 0, LOCAL_PEERCRED, &cred, &size))
+        return false;
+    if (cred.cr_version != XUCRED_VERSION)
+        return false;
+    if (options.ipc_uid_accept_filters.find (cred.cr_uid) != options.ipc_uid_accept_filters.end ())
+        return true;
+    for (int i = 0; i < cred.cr_ngroups; i++) {
+        if (options.ipc_gid_accept_filters.find (cred.cr_groups[i]) != options.ipc_gid_accept_filters.end ())
+            return true;
+    }
+
+    return false;
+}
+
+#endif
+
+zmq::fd_t zmq::ipc_listener_t::accept ()
+{
+    //  Accept one connection and deal with different failure modes.
+    //  The situation where connection cannot be accepted due to insufficient
+    //  resources is considered valid and treated by ignoring the connection.
+    zmq_assert (s != retired_fd);
+    fd_t sock = ::accept (s, NULL, NULL);
+    if (sock == -1) {
+        errno_assert (errno == EAGAIN || errno == EWOULDBLOCK ||
+            errno == EINTR || errno == ECONNABORTED || errno == EPROTO ||
+            errno == ENFILE);
+        return retired_fd;
+    }
+
+    //  Race condition can cause socket not to be closed (if fork happens
+    //  between accept and this point).
+#ifdef FD_CLOEXEC
+    int rc = fcntl (sock, F_SETFD, FD_CLOEXEC);
+    errno_assert (rc != -1);
+#endif
+
+    // IPC accept() filters
+#if defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED
+    if (!filter (sock)) {
+        int rc = ::close (sock);
+        errno_assert (rc == 0);
+        return retired_fd;
+    }
+#endif
+
+    return sock;
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_listener.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_listener.hpp
new file mode 100644
index 00000000..445f96ba
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ipc_listener.hpp
@@ -0,0 +1,114 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_IPC_LISTENER_HPP_INCLUDED__
+#define __ZMQ_IPC_LISTENER_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+
+#include <string>
+
+#include "fd.hpp"
+#include "own.hpp"
+#include "stdint.hpp"
+#include "io_object.hpp"
+
+namespace zmq
+{
+
+    class io_thread_t;
+    class socket_base_t;
+
+    class ipc_listener_t : public own_t, public io_object_t
+    {
+    public:
+
+        ipc_listener_t (zmq::io_thread_t *io_thread_,
+            zmq::socket_base_t *socket_, const options_t &options_);
+        ~ipc_listener_t ();
+
+        //  Set address to listen on.
+        int set_address (const char *addr_);
+
+        // Get the bound address for use with wildcards
+        int get_address (std::string &addr_);
+
+    private:
+
+        //  Handlers for incoming commands.
+        void process_plug ();
+        void process_term (int linger_);
+
+        //  Handlers for I/O events.
+        void in_event ();
+
+        //  Close the listening socket.
+        int close ();
+
+        //  Filter new connections if the OS provides a mechanism to get
+        //  the credentials of the peer process.  Called from accept().
+#       if defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED
+        bool filter (fd_t sock);
+#       endif
+
+        //  Accept the new connection. Returns the file descriptor of the
+        //  newly created connection. The function may return retired_fd
+        //  if the connection was dropped while waiting in the listen backlog.
+        fd_t accept ();
+
+        //  True, if the undelying file for UNIX domain socket exists.
+        bool has_file;
+
+        //  Name of the file associated with the UNIX domain address.
+        std::string filename;
+
+        //  Underlying socket.
+        fd_t s;
+
+        //  Handle corresponding to the listening socket.
+        handle_t handle;
+
+        //  Socket the listerner belongs to.
+        zmq::socket_base_t *socket;
+
+       // String representation of endpoint to bind to
+        std::string endpoint;
+
+        ipc_listener_t (const ipc_listener_t&);
+        const ipc_listener_t &operator = (const ipc_listener_t&);
+    };
+
+}
+
+#endif
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/kqueue.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/kqueue.cpp
new file mode 100644
index 00000000..3095ab7a
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/kqueue.cpp
@@ -0,0 +1,225 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "kqueue.hpp"
+#if defined ZMQ_USE_KQUEUE
+
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/event.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <algorithm>
+#include <new>
+
+#include "kqueue.hpp"
+#include "err.hpp"
+#include "config.hpp"
+#include "i_poll_events.hpp"
+#include "likely.hpp"
+
+//  NetBSD defines (struct kevent).udata as intptr_t, everyone else
+//  as void *.
+#if defined ZMQ_HAVE_NETBSD
+#define kevent_udata_t intptr_t
+#else
+#define kevent_udata_t void *
+#endif
+
+zmq::kqueue_t::kqueue_t (const zmq::ctx_t &ctx_) :
+    ctx(ctx_),
+    stopping (false)
+{
+    //  Create event queue
+    kqueue_fd = kqueue ();
+    errno_assert (kqueue_fd != -1);
+#ifdef HAVE_FORK
+    pid = getpid();
+#endif
+}
+
+zmq::kqueue_t::~kqueue_t ()
+{
+    worker.stop ();
+    close (kqueue_fd);
+}
+
+void zmq::kqueue_t::kevent_add (fd_t fd_, short filter_, void *udata_)
+{
+    struct kevent ev;
+
+    EV_SET (&ev, fd_, filter_, EV_ADD, 0, 0, (kevent_udata_t)udata_);
+    int rc = kevent (kqueue_fd, &ev, 1, NULL, 0, NULL);
+    errno_assert (rc != -1);
+}
+
+void zmq::kqueue_t::kevent_delete (fd_t fd_, short filter_)
+{
+    struct kevent ev;
+
+    EV_SET (&ev, fd_, filter_, EV_DELETE, 0, 0, 0);
+    int rc = kevent (kqueue_fd, &ev, 1, NULL, 0, NULL);
+    errno_assert (rc != -1);
+}
+
+zmq::kqueue_t::handle_t zmq::kqueue_t::add_fd (fd_t fd_,
+    i_poll_events *reactor_)
+{
+    poll_entry_t *pe = new (std::nothrow) poll_entry_t;
+    alloc_assert (pe);
+
+    pe->fd = fd_;
+    pe->flag_pollin = 0;
+    pe->flag_pollout = 0;
+    pe->reactor = reactor_;
+
+    adjust_load (1);
+
+    return pe;
+}
+
+void zmq::kqueue_t::rm_fd (handle_t handle_)
+{
+    poll_entry_t *pe = (poll_entry_t*) handle_;
+    if (pe->flag_pollin)
+        kevent_delete (pe->fd, EVFILT_READ);
+    if (pe->flag_pollout)
+        kevent_delete (pe->fd, EVFILT_WRITE);
+    pe->fd = retired_fd;
+    retired.push_back (pe);
+
+    adjust_load (-1);
+}
+
+void zmq::kqueue_t::set_pollin (handle_t handle_)
+{
+    poll_entry_t *pe = (poll_entry_t*) handle_;
+    if (likely (!pe->flag_pollin)) {
+        pe->flag_pollin = true;
+        kevent_add (pe->fd, EVFILT_READ, pe);
+    }
+}
+
+void zmq::kqueue_t::reset_pollin (handle_t handle_)
+{
+    poll_entry_t *pe = (poll_entry_t*) handle_;
+    if (likely (pe->flag_pollin)) {
+        pe->flag_pollin = false;
+        kevent_delete (pe->fd, EVFILT_READ);
+    }
+}
+
+void zmq::kqueue_t::set_pollout (handle_t handle_)
+{
+    poll_entry_t *pe = (poll_entry_t*) handle_;
+    if (likely (!pe->flag_pollout)) {
+        pe->flag_pollout = true;
+        kevent_add (pe->fd, EVFILT_WRITE, pe);
+    }
+}
+
+void zmq::kqueue_t::reset_pollout (handle_t handle_)
+{
+    poll_entry_t *pe = (poll_entry_t*) handle_;
+    if (likely (pe->flag_pollout)) {
+        pe->flag_pollout = false;
+        kevent_delete (pe->fd, EVFILT_WRITE);
+   }
+}
+
+void zmq::kqueue_t::start ()
+{
+    ctx.start_thread (worker, worker_routine, this);
+}
+
+void zmq::kqueue_t::stop ()
+{
+    stopping = true;
+}
+
+int zmq::kqueue_t::max_fds ()
+{
+    return -1;
+}
+
+void zmq::kqueue_t::loop ()
+{
+    while (!stopping) {
+
+        //  Execute any due timers.
+        int timeout = (int) execute_timers ();
+
+        //  Wait for events.
+        struct kevent ev_buf [max_io_events];
+        timespec ts = {timeout / 1000, (timeout % 1000) * 1000000};
+        int n = kevent (kqueue_fd, NULL, 0, &ev_buf [0], max_io_events,
+            timeout ? &ts: NULL);
+#ifdef HAVE_FORK
+        if (unlikely(pid != getpid())) {
+            //printf("zmq::kqueue_t::loop aborting on forked child %d\n", (int)getpid());
+            // simply exit the loop in a forked process.
+            return;
+        }
+#endif
+        if (n == -1) {
+            errno_assert (errno == EINTR);
+            continue;
+        }
+
+        for (int i = 0; i < n; i ++) {
+            poll_entry_t *pe = (poll_entry_t*) ev_buf [i].udata;
+
+            if (pe->fd == retired_fd)
+                continue;
+            if (ev_buf [i].flags & EV_EOF)
+                pe->reactor->in_event ();
+            if (pe->fd == retired_fd)
+                continue;
+            if (ev_buf [i].filter == EVFILT_WRITE)
+                pe->reactor->out_event ();
+            if (pe->fd == retired_fd)
+                continue;
+            if (ev_buf [i].filter == EVFILT_READ)
+                pe->reactor->in_event ();
+        }
+
+        //  Destroy retired event sources.
+        for (retired_t::iterator it = retired.begin (); it != retired.end ();
+              ++it)
+            delete *it;
+        retired.clear ();
+    }
+}
+
+void zmq::kqueue_t::worker_routine (void *arg_)
+{
+    ((kqueue_t*) arg_)->loop ();
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/kqueue.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/kqueue.hpp
new file mode 100644
index 00000000..b6680b6a
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/kqueue.hpp
@@ -0,0 +1,127 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_KQUEUE_HPP_INCLUDED__
+#define __ZMQ_KQUEUE_HPP_INCLUDED__
+
+//  poller.hpp decides which polling mechanism to use.
+#include "poller.hpp"
+#if defined ZMQ_USE_KQUEUE
+
+#include <vector>
+#include <unistd.h>
+
+#include "ctx.hpp"
+#include "fd.hpp"
+#include "thread.hpp"
+#include "poller_base.hpp"
+
+namespace zmq
+{
+
+    struct i_poll_events;
+
+    //  Implements socket polling mechanism using the BSD-specific
+    //  kqueue interface.
+
+    class kqueue_t : public poller_base_t
+    {
+    public:
+
+        typedef void* handle_t;
+
+        kqueue_t (const ctx_t &ctx_);
+        ~kqueue_t ();
+
+        //  "poller" concept.
+        handle_t add_fd (fd_t fd_, zmq::i_poll_events *events_);
+        void rm_fd (handle_t handle_);
+        void set_pollin (handle_t handle_);
+        void reset_pollin (handle_t handle_);
+        void set_pollout (handle_t handle_);
+        void reset_pollout (handle_t handle_);
+        void start ();
+        void stop ();
+
+        static int max_fds ();
+
+    private:
+
+        //  Main worker thread routine.
+        static void worker_routine (void *arg_);
+
+        //  Main event loop.
+        void loop ();
+
+        // Reference to ZMQ context.
+        const ctx_t &ctx;
+
+        //  File descriptor referring to the kernel event queue.
+        fd_t kqueue_fd;
+
+        //  Adds the event to the kqueue.
+        void kevent_add (fd_t fd_, short filter_, void *udata_);
+
+        //  Deletes the event from the kqueue.
+        void kevent_delete (fd_t fd_, short filter_);
+
+        struct poll_entry_t
+        {
+            fd_t fd;
+            bool flag_pollin;
+            bool flag_pollout;
+            zmq::i_poll_events *reactor;
+        };
+
+        //  List of retired event sources.
+        typedef std::vector <poll_entry_t*> retired_t;
+        retired_t retired;
+
+        //  If true, thread is in the process of shutting down.
+        bool stopping;
+
+        //  Handle of the physical thread doing the I/O work.
+        thread_t worker;
+
+        kqueue_t (const kqueue_t&);
+        const kqueue_t &operator = (const kqueue_t&);
+
+#ifdef HAVE_FORK
+        // the process that created this context. Used to detect forking.
+        pid_t pid;
+#endif
+    };
+
+    typedef kqueue_t poller_t;
+
+}
+
+#endif
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/lb.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/lb.cpp
new file mode 100644
index 00000000..44b11ea7
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/lb.cpp
@@ -0,0 +1,160 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "lb.hpp"
+#include "pipe.hpp"
+#include "err.hpp"
+#include "msg.hpp"
+
+zmq::lb_t::lb_t () :
+    active (0),
+    current (0),
+    more (false),
+    dropping (false)
+{
+}
+
+zmq::lb_t::~lb_t ()
+{
+    zmq_assert (pipes.empty ());
+}
+
+void zmq::lb_t::attach (pipe_t *pipe_)
+{
+    pipes.push_back (pipe_);
+    activated (pipe_);
+}
+
+void zmq::lb_t::pipe_terminated (pipe_t *pipe_)
+{
+    pipes_t::size_type index = pipes.index (pipe_);
+
+    //  If we are in the middle of multipart message and current pipe
+    //  have disconnected, we have to drop the remainder of the message.
+    if (index == current && more)
+        dropping = true;
+
+    //  Remove the pipe from the list; adjust number of active pipes
+    //  accordingly.
+    if (index < active) {
+        active--;
+        pipes.swap (index, active);
+        if (current == active)
+            current = 0;
+    }
+    pipes.erase (pipe_);
+}
+
+void zmq::lb_t::activated (pipe_t *pipe_)
+{
+    //  Move the pipe to the list of active pipes.
+    pipes.swap (pipes.index (pipe_), active);
+    active++;
+}
+
+int zmq::lb_t::send (msg_t *msg_)
+{
+    return sendpipe (msg_, NULL);
+}
+
+int zmq::lb_t::sendpipe (msg_t *msg_, pipe_t **pipe_)
+{
+    //  Drop the message if required. If we are at the end of the message
+    //  switch back to non-dropping mode.
+    if (dropping) {
+
+        more = msg_->flags () & msg_t::more ? true : false;
+        dropping = more;
+
+        int rc = msg_->close ();
+        errno_assert (rc == 0);
+        rc = msg_->init ();
+        errno_assert (rc == 0);
+        return 0;
+    }
+
+    while (active > 0) {
+        if (pipes [current]->write (msg_))
+        {
+            if (pipe_)
+                *pipe_ = pipes [current];
+            break;
+        }
+
+        zmq_assert (!more);
+        active--;
+        if (current < active)
+            pipes.swap (current, active);
+        else
+            current = 0;
+    }
+
+    //  If there are no pipes we cannot send the message.
+    if (active == 0) {
+        errno = EAGAIN;
+        return -1;
+    }
+
+    //  If it's final part of the message we can flush it downstream and
+    //  continue round-robining (load balance).
+    more = msg_->flags () & msg_t::more? true: false;
+    if (!more) {
+        pipes [current]->flush ();
+        current = (current + 1) % active;
+    }
+
+    //  Detach the message from the data buffer.
+    int rc = msg_->init ();
+    errno_assert (rc == 0);
+
+    return 0;
+}
+
+bool zmq::lb_t::has_out ()
+{
+    //  If one part of the message was already written we can definitely
+    //  write the rest of the message.
+    if (more)
+        return true;
+
+    while (active > 0) {
+
+        //  Check whether a pipe has room for another message.
+        if (pipes [current]->check_write ())
+            return true;
+
+        //  Deactivate the pipe.
+        active--;
+        pipes.swap (current, active);
+        if (current == active)
+            current = 0;
+    }
+
+    return false;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/lb.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/lb.hpp
new file mode 100644
index 00000000..b43a8ff1
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/lb.hpp
@@ -0,0 +1,88 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_LB_HPP_INCLUDED__
+#define __ZMQ_LB_HPP_INCLUDED__
+
+#include "array.hpp"
+#include "pipe.hpp"
+
+namespace zmq
+{
+
+    //  This class manages a set of outbound pipes. On send it load balances
+    //  messages fairly among the pipes.
+
+    class lb_t
+    {
+    public:
+
+        lb_t ();
+        ~lb_t ();
+
+        void attach (pipe_t *pipe_);
+        void activated (pipe_t *pipe_);
+        void pipe_terminated (pipe_t *pipe_);
+
+        int send (msg_t *msg_);
+
+        //  Sends a message and stores the pipe that was used in pipe_.
+        //  It is possible for this function to return success but keep pipe_
+        //  unset if the rest of a multipart message to a terminated pipe is
+        //  being dropped. For the first frame, this will never happen.
+        int sendpipe (msg_t *msg_, pipe_t **pipe_);
+
+        bool has_out ();
+
+    private:
+
+        //  List of outbound pipes.
+        typedef array_t <pipe_t, 2> pipes_t;
+        pipes_t pipes;
+
+        //  Number of active pipes. All the active pipes are located at the
+        //  beginning of the pipes array.
+        pipes_t::size_type active;
+
+        //  Points to the last pipe that the most recent message was sent to.
+        pipes_t::size_type current;
+
+        //  True if last we are in the middle of a multipart message.
+        bool more;
+
+        //  True if we are dropping current message.
+        bool dropping;
+
+        lb_t (const lb_t&);
+        const lb_t &operator = (const lb_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/libzmq.pc.cmake.in b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/libzmq.pc.cmake.in
new file mode 100644
index 00000000..4f57939d
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/libzmq.pc.cmake.in
@@ -0,0 +1,10 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix=${prefix}
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: libzmq
+Description: 0MQ c++ library
+Version: @ZMQ_VERSION_MAJOR@.@ZMQ_VERSION_MINOR@.@ZMQ_VERSION_PATCH@
+Libs: -L${libdir} -lzmq
+Cflags: -I${includedir}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/libzmq.pc.in b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/libzmq.pc.in
new file mode 100644
index 00000000..ba155a38
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/libzmq.pc.in
@@ -0,0 +1,10 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libzmq
+Description: 0MQ c++ library
+Version: @VERSION@
+Libs: -L${libdir} -lzmq
+Cflags: -I${includedir}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/libzmq.vers b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/libzmq.vers
new file mode 100644
index 00000000..9a2d4154
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/libzmq.vers
@@ -0,0 +1,4 @@
+{
+  global: zmq_*;
+  local: *;
+};
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/likely.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/likely.hpp
new file mode 100644
index 00000000..b7f5ef27
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/likely.hpp
@@ -0,0 +1,42 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_LIKELY_HPP_INCLUDED__
+#define __ZMQ_LIKELY_HPP_INCLUDED__
+
+#if defined __GNUC__
+#define likely(x) __builtin_expect ((x), 1)
+#define unlikely(x) __builtin_expect ((x), 0)
+#else
+#define likely(x) (x)
+#define unlikely(x) (x)
+#endif
+
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mailbox.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mailbox.cpp
new file mode 100644
index 00000000..e3c2e8a1
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mailbox.cpp
@@ -0,0 +1,96 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "mailbox.hpp"
+#include "err.hpp"
+
+zmq::mailbox_t::mailbox_t ()
+{
+    //  Get the pipe into passive state. That way, if the users starts by
+    //  polling on the associated file descriptor it will get woken up when
+    //  new command is posted.
+    const bool ok = cpipe.read (NULL);
+    zmq_assert (!ok);
+    active = false;
+}
+
+zmq::mailbox_t::~mailbox_t ()
+{
+    //  TODO: Retrieve and deallocate commands inside the cpipe.
+
+    // Work around problem that other threads might still be in our
+    // send() method, by waiting on the mutex before disappearing.
+    sync.lock ();
+    sync.unlock ();
+}
+
+zmq::fd_t zmq::mailbox_t::get_fd () const
+{
+    return signaler.get_fd ();
+}
+
+void zmq::mailbox_t::send (const command_t &cmd_)
+{
+    sync.lock ();
+    cpipe.write (cmd_, false);
+    const bool ok = cpipe.flush ();
+    sync.unlock ();
+    if (!ok)
+        signaler.send ();
+}
+
+int zmq::mailbox_t::recv (command_t *cmd_, int timeout_)
+{
+    //  Try to get the command straight away.
+    if (active) {
+        if (cpipe.read (cmd_))
+            return 0;
+
+        //  If there are no more commands available, switch into passive state.
+        active = false;
+    }
+
+    //  Wait for signal from the command sender.
+    const int rc = signaler.wait (timeout_);
+    if (rc == -1) {
+        errno_assert (errno == EAGAIN || errno == EINTR);
+        return -1;
+    }
+
+    //  Receive the signal.
+    signaler.recv ();
+
+    //  Switch into active state.
+    active = true;
+
+    //  Get a command.
+    const bool ok = cpipe.read (cmd_);
+    zmq_assert (ok);
+    return 0;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mailbox.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mailbox.hpp
new file mode 100644
index 00000000..7d3aed4c
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mailbox.hpp
@@ -0,0 +1,90 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_MAILBOX_HPP_INCLUDED__
+#define __ZMQ_MAILBOX_HPP_INCLUDED__
+
+#include <stddef.h>
+
+#include "platform.hpp"
+#include "signaler.hpp"
+#include "fd.hpp"
+#include "config.hpp"
+#include "command.hpp"
+#include "ypipe.hpp"
+#include "mutex.hpp"
+
+namespace zmq
+{
+
+    class mailbox_t
+    {
+    public:
+
+        mailbox_t ();
+        ~mailbox_t ();
+
+        fd_t get_fd () const;
+        void send (const command_t &cmd_);
+        int recv (command_t *cmd_, int timeout_);
+
+#ifdef HAVE_FORK
+        // close the file descriptors in the signaller. This is used in a forked
+        // child process to close the file descriptors so that they do not interfere
+        // with the context in the parent process.
+        void forked () { signaler.forked (); }
+#endif
+
+    private:
+
+        //  The pipe to store actual commands.
+        typedef ypipe_t <command_t, command_pipe_granularity> cpipe_t;
+        cpipe_t cpipe;
+
+        //  Signaler to pass signals from writer thread to reader thread.
+        signaler_t signaler;
+
+        //  There's only one thread receiving from the mailbox, but there
+        //  is arbitrary number of threads sending. Given that ypipe requires
+        //  synchronised access on both of its endpoints, we have to synchronise
+        //  the sending side.
+        mutex_t sync;
+
+        //  True if the underlying pipe is active, ie. when we are allowed to
+        //  read commands from it.
+        bool active;
+
+        //  Disable copying of mailbox_t object.
+        mailbox_t (const mailbox_t&);
+        const mailbox_t &operator = (const mailbox_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mechanism.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mechanism.cpp
new file mode 100644
index 00000000..84f15dad
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mechanism.cpp
@@ -0,0 +1,194 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <string.h>
+
+#include "mechanism.hpp"
+#include "options.hpp"
+#include "msg.hpp"
+#include "err.hpp"
+#include "wire.hpp"
+
+zmq::mechanism_t::mechanism_t (const options_t &options_) :
+    options (options_)
+{
+}
+
+zmq::mechanism_t::~mechanism_t ()
+{
+}
+
+void zmq::mechanism_t::set_peer_identity (const void *id_ptr, size_t id_size)
+{
+    identity = blob_t (static_cast <const unsigned char*> (id_ptr), id_size);
+}
+
+void zmq::mechanism_t::peer_identity (msg_t *msg_)
+{
+    const int rc = msg_->init_size (identity.size ());
+    errno_assert (rc == 0);
+    memcpy (msg_->data (), identity.data (), identity.size ());
+    msg_->set_flags (msg_t::identity);
+}
+
+void zmq::mechanism_t::set_user_id (const void *data_, size_t size_)
+{
+    user_id = blob_t (static_cast <const unsigned char*> (data_), size_);
+    zap_properties.insert (
+        metadata_t::dict_t::value_type (
+            "User-Id", std::string ((char *) data_, size_)));
+}
+
+zmq::blob_t zmq::mechanism_t::get_user_id () const
+{
+    return user_id;
+}
+
+const char *zmq::mechanism_t::socket_type_string (int socket_type) const
+{
+    static const char *names [] = {"PAIR", "PUB", "SUB", "REQ", "REP",
+                                   "DEALER", "ROUTER", "PULL", "PUSH",
+                                   "XPUB", "XSUB", "STREAM"};
+    zmq_assert (socket_type >= 0 && socket_type <= 10);
+    return names [socket_type];
+}
+
+size_t zmq::mechanism_t::add_property (unsigned char *ptr, const char *name,
+    const void *value, size_t value_len) const
+{
+    const size_t name_len = strlen (name);
+    zmq_assert (name_len <= 255);
+    *ptr++ = static_cast <unsigned char> (name_len);
+    memcpy (ptr, name, name_len);
+    ptr += name_len;
+    zmq_assert (value_len <= 0x7FFFFFFF);
+    put_uint32 (ptr, static_cast <uint32_t> (value_len));
+    ptr += 4;
+    memcpy (ptr, value, value_len);
+
+    return 1 + name_len + 4 + value_len;
+}
+
+int zmq::mechanism_t::parse_metadata (const unsigned char *ptr_,
+                                      size_t length_, bool zap_flag)
+{
+    size_t bytes_left = length_;
+
+    while (bytes_left > 1) {
+        const size_t name_length = static_cast <size_t> (*ptr_);
+        ptr_ += 1;
+        bytes_left -= 1;
+        if (bytes_left < name_length)
+            break;
+
+        const std::string name = std::string ((char *) ptr_, name_length);
+        ptr_ += name_length;
+        bytes_left -= name_length;
+        if (bytes_left < 4)
+            break;
+
+        const size_t value_length = static_cast <size_t> (get_uint32 (ptr_));
+        ptr_ += 4;
+        bytes_left -= 4;
+        if (bytes_left < value_length)
+            break;
+
+        const uint8_t *value = ptr_;
+        ptr_ += value_length;
+        bytes_left -= value_length;
+
+        if (name == "Identity" && options.recv_identity)
+            set_peer_identity (value, value_length);
+        else
+        if (name == "Socket-Type") {
+            const std::string socket_type ((char *) value, value_length);
+            if (!check_socket_type (socket_type)) {
+                errno = EINVAL;
+                return -1;
+            }
+        }
+        else {
+            const int rc = property (name, value, value_length);
+            if (rc == -1)
+                return -1;
+        }
+        if (zap_flag)
+            zap_properties.insert (
+                metadata_t::dict_t::value_type (
+                    name, std::string ((char *) value, value_length)));
+        else
+            zmtp_properties.insert (
+                metadata_t::dict_t::value_type (
+                    name, std::string ((char *) value, value_length)));
+    }
+    if (bytes_left > 0) {
+        errno = EPROTO;
+        return -1;
+    }
+    return 0;
+}
+
+int zmq::mechanism_t::property (const std::string& /* name_ */,
+                                const void * /* value_ */, size_t /* length_ */)
+{
+    //  Default implementation does not check
+    //  property values and returns 0 to signal success.
+    return 0;
+}
+
+bool zmq::mechanism_t::check_socket_type (const std::string& type_) const
+{
+    switch (options.type) {
+        case ZMQ_REQ:
+            return type_ == "REP" || type_ == "ROUTER";
+        case ZMQ_REP:
+            return type_ == "REQ" || type_ == "DEALER";
+        case ZMQ_DEALER:
+            return type_ == "REP" || type_ == "DEALER" || type_ == "ROUTER";
+        case ZMQ_ROUTER:
+            return type_ == "REQ" || type_ == "DEALER" || type_ == "ROUTER";
+        case ZMQ_PUSH:
+            return type_ == "PULL";
+        case ZMQ_PULL:
+            return type_ == "PUSH";
+        case ZMQ_PUB:
+            return type_ == "SUB" || type_ == "XSUB";
+        case ZMQ_SUB:
+            return type_ == "PUB" || type_ == "XPUB";
+        case ZMQ_XPUB:
+            return type_ == "SUB" || type_ == "XSUB";
+        case ZMQ_XSUB:
+            return type_ == "PUB" || type_ == "XPUB";
+        case ZMQ_PAIR:
+            return type_ == "PAIR";
+        default:
+            break;
+    }
+    return false;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mechanism.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mechanism.hpp
new file mode 100644
index 00000000..1c7c01ba
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mechanism.hpp
@@ -0,0 +1,139 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_MECHANISM_HPP_INCLUDED__
+#define __ZMQ_MECHANISM_HPP_INCLUDED__
+
+#include "stdint.hpp"
+#include "options.hpp"
+#include "blob.hpp"
+#include "metadata.hpp"
+
+namespace zmq
+{
+
+    //  Abstract class representing security mechanism.
+    //  Different mechanism extedns this class.
+
+    class msg_t;
+
+    class mechanism_t
+    {
+    public:
+
+        enum status_t {
+            handshaking,
+            ready,
+            error
+        };
+
+        mechanism_t (const options_t &options_);
+
+        virtual ~mechanism_t ();
+
+        //  Prepare next handshake command that is to be sent to the peer.
+        virtual int next_handshake_command (msg_t *msg_) = 0;
+
+        //  Process the handshake command received from the peer.
+        virtual int process_handshake_command (msg_t *msg_) = 0;
+
+        virtual int encode (msg_t *) { return 0; }
+
+        virtual int decode (msg_t *) { return 0; }
+
+        //  Notifies mechanism about availability of ZAP message.
+        virtual int zap_msg_available () { return 0; }
+
+        //  Returns the status of this mechanism.
+        virtual status_t status () const = 0;
+
+        void set_peer_identity (const void *id_ptr, size_t id_size);
+
+        void peer_identity (msg_t *msg_);
+
+        void set_user_id (const void *user_id, size_t size);
+
+        blob_t get_user_id () const;
+
+        const metadata_t::dict_t& get_zmtp_properties () {
+            return zmtp_properties;
+        }
+
+        const metadata_t::dict_t& get_zap_properties () {
+            return zap_properties;
+        }
+
+    protected:
+
+        //  Only used to identify the socket for the Socket-Type
+        //  property in the wire protocol.
+        const char *socket_type_string (int socket_type) const;
+
+        size_t add_property (unsigned char *ptr, const char *name,
+            const void *value, size_t value_len) const;
+
+        //  Parses a metadata.
+        //  Metadata consists of a list of properties consisting of
+        //  name and value as size-specified strings.
+        //  Returns 0 on success and -1 on error, in which case errno is set.
+        int parse_metadata (
+            const unsigned char *ptr_, size_t length, bool zap_flag = false);
+
+        //  This is called by parse_property method whenever it
+        //  parses a new property. The function should return 0
+        //  on success and -1 on error, in which case it should
+        //  set errno. Signaling error prevents parser from
+        //  parsing remaining data.
+        //  Derived classes are supposed to override this
+        //  method to handle custom processing.
+        virtual int property (const std::string& name_,
+                              const void *value_, size_t length_);
+
+        //  Properties received from ZMTP peer.
+        metadata_t::dict_t zmtp_properties;
+
+        //  Properties received from ZAP server.
+        metadata_t::dict_t zap_properties;
+
+        options_t options;
+
+    private:
+
+        blob_t identity;
+
+        blob_t user_id;
+
+        //  Returns true iff socket associated with the mechanism
+        //  is compatible with a given socket type 'type_'.
+        bool check_socket_type (const std::string& type_) const;
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/metadata.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/metadata.cpp
new file mode 100644
index 00000000..956bf989
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/metadata.cpp
@@ -0,0 +1,59 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "metadata.hpp"
+
+zmq::metadata_t::metadata_t (const dict_t &dict) :
+    ref_cnt (1),
+    dict (dict)
+{
+}
+
+zmq::metadata_t::~metadata_t ()
+{
+}
+
+const char *zmq::metadata_t::get (const std::string &property) const
+{
+    dict_t::const_iterator it = dict.find (property);
+    if (it == dict.end ())
+        return NULL;
+    else
+        return it->second.c_str ();
+}
+
+void zmq::metadata_t::add_ref ()
+{
+    ref_cnt.add (1);
+}
+
+bool zmq::metadata_t::drop_ref ()
+{
+    return !ref_cnt.sub (1);
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/metadata.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/metadata.hpp
new file mode 100644
index 00000000..7181d784
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/metadata.hpp
@@ -0,0 +1,70 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_METADATA_HPP_INCLUDED__
+#define __ZMQ_METADATA_HPP_INCLUDED__
+
+#include <map>
+#include <string>
+
+#include "atomic_counter.hpp"
+
+namespace zmq
+{
+    class metadata_t
+    {
+        public:
+
+            typedef std::map <std::string, const std::string> dict_t;
+
+            metadata_t (const dict_t &dict);
+            virtual ~metadata_t ();
+
+            //  Returns pointer to property value or NULL if
+            //  property is not found.
+            virtual const char *get (const std::string &property) const;
+
+            virtual void add_ref ();
+
+            //  Drop reference. Returns true iff the reference
+            //  counter drops to zero.
+            virtual bool drop_ref ();
+
+        private:
+
+            //  Reference counter.
+            atomic_counter_t ref_cnt;
+
+            //  Dictionary holding metadata.
+            const dict_t dict;
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/msg.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/msg.cpp
new file mode 100644
index 00000000..00ed1595
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/msg.cpp
@@ -0,0 +1,389 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "msg.hpp"
+#include "../include/zmq.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <new>
+
+#include "stdint.hpp"
+#include "likely.hpp"
+#include "metadata.hpp"
+#include "err.hpp"
+
+//  Check whether the sizes of public representation of the message (zmq_msg_t)
+//  and private representation of the message (zmq::msg_t) match.
+
+typedef char zmq_msg_size_check
+    [2 * ((sizeof (zmq::msg_t) == sizeof (zmq_msg_t)) != 0) - 1];
+
+bool zmq::msg_t::check ()
+{
+     return u.base.type >= type_min && u.base.type <= type_max;
+}
+
+int zmq::msg_t::init ()
+{
+    u.vsm.metadata = NULL;
+    u.vsm.type = type_vsm;
+    u.vsm.flags = 0;
+    u.vsm.size = 0;
+    file_desc = -1;
+    return 0;
+}
+
+int zmq::msg_t::init_size (size_t size_)
+{
+    file_desc = -1;
+    if (size_ <= max_vsm_size) {
+        u.vsm.metadata = NULL;
+        u.vsm.type = type_vsm;
+        u.vsm.flags = 0;
+        u.vsm.size = (unsigned char) size_;
+    }
+    else {
+        u.lmsg.metadata = NULL;
+        u.lmsg.type = type_lmsg;
+        u.lmsg.flags = 0;
+        u.lmsg.content =
+            (content_t*) malloc (sizeof (content_t) + size_);
+        if (unlikely (!u.lmsg.content)) {
+            errno = ENOMEM;
+            return -1;
+        }
+
+        u.lmsg.content->data = u.lmsg.content + 1;
+        u.lmsg.content->size = size_;
+        u.lmsg.content->ffn = NULL;
+        u.lmsg.content->hint = NULL;
+        new (&u.lmsg.content->refcnt) zmq::atomic_counter_t ();
+    }
+    return 0;
+}
+
+int zmq::msg_t::init_data (void *data_, size_t size_, msg_free_fn *ffn_,
+    void *hint_)
+{
+    //  If data is NULL and size is not 0, a segfault
+    //  would occur once the data is accessed
+    zmq_assert (data_ != NULL || size_ == 0);
+
+    file_desc = -1;
+
+    //  Initialize constant message if there's no need to deallocate
+    if (ffn_ == NULL) {
+        u.cmsg.metadata = NULL;
+        u.cmsg.type = type_cmsg;
+        u.cmsg.flags = 0;
+        u.cmsg.data = data_;
+        u.cmsg.size = size_;
+    }
+    else {
+        u.lmsg.metadata = NULL;
+        u.lmsg.type = type_lmsg;
+        u.lmsg.flags = 0;
+        u.lmsg.content = (content_t*) malloc (sizeof (content_t));
+        if (!u.lmsg.content) {
+            errno = ENOMEM;
+            return -1;
+        }
+
+        u.lmsg.content->data = data_;
+        u.lmsg.content->size = size_;
+        u.lmsg.content->ffn = ffn_;
+        u.lmsg.content->hint = hint_;
+        new (&u.lmsg.content->refcnt) zmq::atomic_counter_t ();
+    }
+    return 0;
+
+}
+
+int zmq::msg_t::init_delimiter ()
+{
+    u.delimiter.metadata = NULL;
+    u.delimiter.type = type_delimiter;
+    u.delimiter.flags = 0;
+    return 0;
+}
+
+int zmq::msg_t::close ()
+{
+    //  Check the validity of the message.
+    if (unlikely (!check ())) {
+        errno = EFAULT;
+        return -1;
+    }
+
+    if (u.base.type == type_lmsg) {
+
+        //  If the content is not shared, or if it is shared and the reference
+        //  count has dropped to zero, deallocate it.
+        if (!(u.lmsg.flags & msg_t::shared) ||
+              !u.lmsg.content->refcnt.sub (1)) {
+
+            //  We used "placement new" operator to initialize the reference
+            //  counter so we call the destructor explicitly now.
+            u.lmsg.content->refcnt.~atomic_counter_t ();
+
+            if (u.lmsg.content->ffn)
+                u.lmsg.content->ffn (u.lmsg.content->data,
+                    u.lmsg.content->hint);
+            free (u.lmsg.content);
+        }
+    }
+
+    if (u.base.metadata != NULL)
+        if (u.base.metadata->drop_ref ())
+            delete u.base.metadata;
+
+    //  Make the message invalid.
+    u.base.type = 0;
+
+    return 0;
+}
+
+int zmq::msg_t::move (msg_t &src_)
+{
+    //  Check the validity of the source.
+    if (unlikely (!src_.check ())) {
+        errno = EFAULT;
+        return -1;
+    }
+
+    int rc = close ();
+    if (unlikely (rc < 0))
+        return rc;
+
+    *this = src_;
+
+    rc = src_.init ();
+    if (unlikely (rc < 0))
+        return rc;
+
+    return 0;
+}
+
+int zmq::msg_t::copy (msg_t &src_)
+{
+    //  Check the validity of the source.
+    if (unlikely (!src_.check ())) {
+        errno = EFAULT;
+        return -1;
+    }
+
+    int rc = close ();
+    if (unlikely (rc < 0))
+        return rc;
+
+    if (src_.u.base.type == type_lmsg) {
+
+        //  One reference is added to shared messages. Non-shared messages
+        //  are turned into shared messages and reference count is set to 2.
+        if (src_.u.lmsg.flags & msg_t::shared)
+            src_.u.lmsg.content->refcnt.add (1);
+        else {
+            src_.u.lmsg.flags |= msg_t::shared;
+            src_.u.lmsg.content->refcnt.set (2);
+        }
+    }
+
+    if (src_.u.base.metadata != NULL)
+        src_.u.base.metadata->add_ref ();
+
+    *this = src_;
+
+    return 0;
+
+}
+
+void *zmq::msg_t::data ()
+{
+    //  Check the validity of the message.
+    zmq_assert (check ());
+
+    switch (u.base.type) {
+    case type_vsm:
+        return u.vsm.data;
+    case type_lmsg:
+        return u.lmsg.content->data;
+    case type_cmsg:
+        return u.cmsg.data;
+    default:
+        zmq_assert (false);
+        return NULL;
+    }
+}
+
+size_t zmq::msg_t::size ()
+{
+    //  Check the validity of the message.
+    zmq_assert (check ());
+
+    switch (u.base.type) {
+    case type_vsm:
+        return u.vsm.size;
+    case type_lmsg:
+        return u.lmsg.content->size;
+    case type_cmsg:
+        return u.cmsg.size;
+    default:
+        zmq_assert (false);
+        return 0;
+    }
+}
+
+unsigned char zmq::msg_t::flags ()
+{
+    return u.base.flags;
+}
+
+void zmq::msg_t::set_flags (unsigned char flags_)
+{
+    u.base.flags |= flags_;
+}
+
+void zmq::msg_t::reset_flags (unsigned char flags_)
+{
+    u.base.flags &= ~flags_;
+}
+
+int64_t zmq::msg_t::fd ()
+{
+    return file_desc;
+}
+
+void zmq::msg_t::set_fd (int64_t fd_)
+{
+    file_desc = fd_;
+}
+
+zmq::metadata_t *zmq::msg_t::metadata () const
+{
+    return u.base.metadata;
+}
+
+void zmq::msg_t::set_metadata (zmq::metadata_t *metadata_)
+{
+    assert (metadata_ != NULL);
+    assert (u.base.metadata == NULL);
+    metadata_->add_ref ();
+    u.base.metadata = metadata_;
+}
+
+void zmq::msg_t::reset_metadata ()
+{
+    if (u.base.metadata) {
+        if (u.base.metadata->drop_ref ())
+            delete u.base.metadata;
+        u.base.metadata = NULL;
+    }
+}
+
+bool zmq::msg_t::is_identity () const
+{
+    return (u.base.flags & identity) == identity;
+}
+
+bool zmq::msg_t::is_credential () const
+{
+    return (u.base.flags & credential) == credential;
+}
+
+bool zmq::msg_t::is_delimiter () const
+{
+    return u.base.type == type_delimiter;
+}
+
+bool zmq::msg_t::is_vsm ()
+{
+    return u.base.type == type_vsm;
+}
+
+bool zmq::msg_t::is_cmsg ()
+{
+    return u.base.type == type_cmsg;
+}
+
+void zmq::msg_t::add_refs (int refs_)
+{
+    zmq_assert (refs_ >= 0);
+
+    //  Operation not supported for messages with metadata.
+    zmq_assert (u.base.metadata == NULL);
+
+    //  No copies required.
+    if (!refs_)
+        return;
+
+    //  VSMs, CMSGS and delimiters can be copied straight away. The only
+    //  message type that needs special care are long messages.
+    if (u.base.type == type_lmsg) {
+        if (u.lmsg.flags & msg_t::shared)
+            u.lmsg.content->refcnt.add (refs_);
+        else {
+            u.lmsg.content->refcnt.set (refs_ + 1);
+            u.lmsg.flags |= msg_t::shared;
+        }
+    }
+}
+
+bool zmq::msg_t::rm_refs (int refs_)
+{
+    zmq_assert (refs_ >= 0);
+
+    //  Operation not supported for messages with metadata.
+    zmq_assert (u.base.metadata == NULL);
+
+    //  No copies required.
+    if (!refs_)
+        return true;
+
+    //  If there's only one reference close the message.
+    if (u.base.type != type_lmsg || !(u.lmsg.flags & msg_t::shared)) {
+        close ();
+        return false;
+    }
+
+    //  The only message type that needs special care are long messages.
+    if (!u.lmsg.content->refcnt.sub (refs_)) {
+        //  We used "placement new" operator to initialize the reference
+        //  counter so we call the destructor explicitly now.
+        u.lmsg.content->refcnt.~atomic_counter_t ();
+
+        if (u.lmsg.content->ffn)
+            u.lmsg.content->ffn (u.lmsg.content->data, u.lmsg.content->hint);
+        free (u.lmsg.content);
+
+        return false;
+    }
+
+    return true;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/msg.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/msg.hpp
new file mode 100644
index 00000000..9a8baca0
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/msg.hpp
@@ -0,0 +1,187 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_MSG_HPP_INCLUDE__
+#define __ZMQ_MSG_HPP_INCLUDE__
+
+#include <stddef.h>
+#include <stdio.h>
+
+#include "config.hpp"
+#include "atomic_counter.hpp"
+#include "metadata.hpp"
+
+//  Signature for free function to deallocate the message content.
+//  Note that it has to be declared as "C" so that it is the same as
+//  zmq_free_fn defined in zmq.h.
+extern "C"
+{
+    typedef void (msg_free_fn) (void *data, void *hint);
+}
+
+namespace zmq
+{
+
+    //  Note that this structure needs to be explicitly constructed
+    //  (init functions) and destructed (close function).
+
+    class msg_t
+    {
+    public:
+
+        //  Message flags.
+        enum
+        {
+            more = 1,           //  Followed by more parts
+            command = 2,        //  Command frame (see ZMTP spec)
+            credential = 32,
+            identity = 64,
+            shared = 128
+        };
+
+        bool check ();
+        int init ();
+        int init_size (size_t size_);
+        int init_data (void *data_, size_t size_, msg_free_fn *ffn_,
+            void *hint_);
+        int init_delimiter ();
+        int close ();
+        int move (msg_t &src_);
+        int copy (msg_t &src_);
+        void *data ();
+        size_t size ();
+        unsigned char flags ();
+        void set_flags (unsigned char flags_);
+        void reset_flags (unsigned char flags_);
+        int64_t fd ();
+        void set_fd (int64_t fd_);
+        metadata_t *metadata () const;
+        void set_metadata (metadata_t *metadata_);
+        void reset_metadata ();
+        bool is_identity () const;
+        bool is_credential () const;
+        bool is_delimiter () const;
+        bool is_vsm ();
+        bool is_cmsg ();
+
+        //  After calling this function you can copy the message in POD-style
+        //  refs_ times. No need to call copy.
+        void add_refs (int refs_);
+
+        //  Removes references previously added by add_refs. If the number of
+        //  references drops to 0, the message is closed and false is returned.
+        bool rm_refs (int refs_);
+
+    private:
+
+        //  Size in bytes of the largest message that is still copied around
+        //  rather than being reference-counted.
+        enum { msg_t_size = 64 };
+        enum { max_vsm_size = msg_t_size - (8 + sizeof (metadata_t *) + 3) };
+
+        //  Shared message buffer. Message data are either allocated in one
+        //  continuous block along with this structure - thus avoiding one
+        //  malloc/free pair or they are stored in used-supplied memory.
+        //  In the latter case, ffn member stores pointer to the function to be
+        //  used to deallocate the data. If the buffer is actually shared (there
+        //  are at least 2 references to it) refcount member contains number of
+        //  references.
+        struct content_t
+        {
+            void *data;
+            size_t size;
+            msg_free_fn *ffn;
+            void *hint;
+            zmq::atomic_counter_t refcnt;
+        };
+
+        //  Different message types.
+        enum type_t
+        {
+            type_min = 101,
+            //  VSM messages store the content in the message itself
+            type_vsm = 101,
+            //  LMSG messages store the content in malloc-ed memory
+            type_lmsg = 102,
+            //  Delimiter messages are used in envelopes
+            type_delimiter = 103,
+            //  CMSG messages point to constant data
+            type_cmsg = 104,
+            type_max = 104
+        };
+
+        // the file descriptor where this message originated, needs to be 64bit due to alignment
+        int64_t file_desc;
+
+        //  Note that fields shared between different message types are not
+        //  moved to tha parent class (msg_t). This way we get tighter packing
+        //  of the data. Shared fields can be accessed via 'base' member of
+        //  the union.
+        union {
+            struct {
+                metadata_t *metadata;
+                unsigned char unused [msg_t_size - (8 + sizeof (metadata_t *) + 2)];
+                unsigned char type;
+                unsigned char flags;
+            } base;
+            struct {
+                metadata_t *metadata;
+                unsigned char data [max_vsm_size];
+                unsigned char size;
+                unsigned char type;
+                unsigned char flags;
+            } vsm;
+            struct {
+                metadata_t *metadata;
+                content_t *content;
+                unsigned char unused [msg_t_size - (8 + sizeof (metadata_t *) + sizeof (content_t*) + 2)];
+                unsigned char type;
+                unsigned char flags;
+            } lmsg;
+            struct {
+                metadata_t *metadata;
+                void* data;
+                size_t size;
+                unsigned char unused
+                    [msg_t_size - (8 + sizeof (metadata_t *) + sizeof (void*) + sizeof (size_t) + 2)];
+                unsigned char type;
+                unsigned char flags;
+            } cmsg;
+            struct {
+                metadata_t *metadata;
+                unsigned char unused [msg_t_size - (8 + sizeof (metadata_t *) + 2)];
+                unsigned char type;
+                unsigned char flags;
+            } delimiter;
+        } u;
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mtrie.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mtrie.cpp
new file mode 100644
index 00000000..8a838905
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mtrie.cpp
@@ -0,0 +1,440 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdlib.h>
+
+#include <new>
+#include <algorithm>
+
+#include "platform.hpp"
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include "err.hpp"
+#include "pipe.hpp"
+#include "mtrie.hpp"
+
+zmq::mtrie_t::mtrie_t () :
+    pipes (0),
+    min (0),
+    count (0),
+    live_nodes (0)
+{
+}
+
+zmq::mtrie_t::~mtrie_t ()
+{
+    if (pipes) {
+        delete pipes;
+        pipes = 0;
+    }
+
+    if (count == 1) {
+        zmq_assert (next.node);
+        delete next.node;
+        next.node = 0;
+    }
+    else
+    if (count > 1) {
+        for (unsigned short i = 0; i != count; ++i)
+            delete next.table [i];
+        free (next.table);
+    }
+}
+
+bool zmq::mtrie_t::add (unsigned char *prefix_, size_t size_, pipe_t *pipe_)
+{
+    return add_helper (prefix_, size_, pipe_);
+}
+
+bool zmq::mtrie_t::add_helper (unsigned char *prefix_, size_t size_,
+    pipe_t *pipe_)
+{
+    //  We are at the node corresponding to the prefix. We are done.
+    if (!size_) {
+        bool result = !pipes;
+        if (!pipes) {
+            pipes = new (std::nothrow) pipes_t;
+            alloc_assert (pipes);
+        }
+        pipes->insert (pipe_);
+        return result;
+    }
+
+    unsigned char c = *prefix_;
+    if (c < min || c >= min + count) {
+
+        //  The character is out of range of currently handled
+        //  charcters. We have to extend the table.
+        if (!count) {
+            min = c;
+            count = 1;
+            next.node = NULL;
+        }
+        else
+        if (count == 1) {
+            unsigned char oldc = min;
+            mtrie_t *oldp = next.node;
+            count = (min < c ? c - min : min - c) + 1;
+            next.table = (mtrie_t**)
+                malloc (sizeof (mtrie_t*) * count);
+            alloc_assert (next.table);
+            for (unsigned short i = 0; i != count; ++i)
+                next.table [i] = 0;
+            min = std::min (min, c);
+            next.table [oldc - min] = oldp;
+        }
+        else
+        if (min < c) {
+            //  The new character is above the current character range.
+            unsigned short old_count = count;
+            count = c - min + 1;
+            next.table = (mtrie_t**) realloc (next.table,
+                sizeof (mtrie_t*) * count);
+            alloc_assert (next.table);
+            for (unsigned short i = old_count; i != count; i++)
+                next.table [i] = NULL;
+        }
+        else {
+            //  The new character is below the current character range.
+            unsigned short old_count = count;
+            count = (min + old_count) - c;
+            next.table = (mtrie_t**) realloc (next.table,
+                sizeof (mtrie_t*) * count);
+            alloc_assert (next.table);
+            memmove (next.table + min - c, next.table,
+                old_count * sizeof (mtrie_t*));
+            for (unsigned short i = 0; i != min - c; i++)
+                next.table [i] = NULL;
+            min = c;
+        }
+    }
+
+    //  If next node does not exist, create one.
+    if (count == 1) {
+        if (!next.node) {
+            next.node = new (std::nothrow) mtrie_t;
+            alloc_assert (next.node);
+            ++live_nodes;
+        }
+        return next.node->add_helper (prefix_ + 1, size_ - 1, pipe_);
+    }
+    else {
+        if (!next.table [c - min]) {
+            next.table [c - min] = new (std::nothrow) mtrie_t;
+            alloc_assert (next.table [c - min]);
+            ++live_nodes;
+        }
+        return next.table [c - min]->add_helper (prefix_ + 1, size_ - 1, pipe_);
+    }
+}
+
+
+void zmq::mtrie_t::rm (pipe_t *pipe_,
+    void (*func_) (unsigned char *data_, size_t size_, void *arg_),
+    void *arg_)
+{
+    unsigned char *buff = NULL;
+    rm_helper (pipe_, &buff, 0, 0, func_, arg_);
+    free (buff);
+}
+
+void zmq::mtrie_t::rm_helper (pipe_t *pipe_, unsigned char **buff_,
+    size_t buffsize_, size_t maxbuffsize_,
+    void (*func_) (unsigned char *data_, size_t size_, void *arg_),
+    void *arg_)
+{
+    //  Remove the subscription from this node.
+    if (pipes && pipes->erase (pipe_) && pipes->empty ()) {
+        func_ (*buff_, buffsize_, arg_);
+        delete pipes;
+        pipes = 0;
+    }
+
+    //  Adjust the buffer.
+    if (buffsize_ >= maxbuffsize_) {
+        maxbuffsize_ = buffsize_ + 256;
+        *buff_ = (unsigned char*) realloc (*buff_, maxbuffsize_);
+        alloc_assert (*buff_);
+    }
+
+    //  If there are no subnodes in the trie, return.
+    if (count == 0)
+        return;
+
+    //  If there's one subnode (optimisation).
+    if (count == 1) {
+        (*buff_) [buffsize_] = min;
+        buffsize_++;
+        next.node->rm_helper (pipe_, buff_, buffsize_, maxbuffsize_,
+            func_, arg_);
+
+        //  Prune the node if it was made redundant by the removal
+        if (next.node->is_redundant ()) {
+            delete next.node;
+            next.node = 0;
+            count = 0;
+            --live_nodes;
+            zmq_assert (live_nodes == 0);
+        }
+        return;
+    }
+
+    //  If there are multiple subnodes.
+    //
+    //  New min non-null character in the node table after the removal
+    unsigned char new_min = min + count - 1;
+    //  New max non-null character in the node table after the removal
+    unsigned char new_max = min;
+    for (unsigned short c = 0; c != count; c++) {
+        (*buff_) [buffsize_] = min + c;
+        if (next.table [c]) {
+            next.table [c]->rm_helper (pipe_, buff_, buffsize_ + 1,
+                maxbuffsize_, func_, arg_);
+
+            //  Prune redundant nodes from the mtrie
+            if (next.table [c]->is_redundant ()) {
+                delete next.table [c];
+                next.table [c] = 0;
+
+                zmq_assert (live_nodes > 0);
+                --live_nodes;
+            }
+            else {
+                //  The node is not redundant, so it's a candidate for being
+                //  the new min/max node.
+                //
+                //  We loop through the node array from left to right, so the
+                //  first non-null, non-redundant node encountered is the new
+                //  minimum index. Conversely, the last non-redundant, non-null
+                //  node encountered is the new maximum index.
+                if (c + min < new_min)
+                    new_min = c + min;
+                if (c + min > new_max)
+                    new_max = c + min;
+            }
+        }
+    }
+
+    zmq_assert (count > 1);
+
+    //  Free the node table if it's no longer used.
+    if (live_nodes == 0) {
+        free (next.table);
+        next.table = NULL;
+        count = 0;
+    }
+    //  Compact the node table if possible
+    else
+    if (live_nodes == 1) {
+        //  If there's only one live node in the table we can
+        //  switch to using the more compact single-node
+        //  representation
+        zmq_assert (new_min == new_max);
+        zmq_assert (new_min >= min && new_min < min + count);
+        mtrie_t *node = next.table [new_min - min];
+        zmq_assert (node);
+        free (next.table);
+        next.node = node;
+        count = 1;
+        min = new_min;
+    }
+    else
+    if (new_min > min || new_max < min + count - 1) {
+        zmq_assert (new_max - new_min + 1 > 1);
+
+        mtrie_t **old_table = next.table;
+        zmq_assert (new_min > min || new_max < min + count - 1);
+        zmq_assert (new_min >= min);
+        zmq_assert (new_max <= min + count - 1);
+        zmq_assert (new_max - new_min + 1 < count);
+
+        count = new_max - new_min + 1;
+        next.table = (mtrie_t**) malloc (sizeof (mtrie_t*) * count);
+        alloc_assert (next.table);
+
+        memmove (next.table, old_table + (new_min - min),
+                 sizeof (mtrie_t*) * count);
+        free (old_table);
+
+        min = new_min;
+    }
+}
+
+bool zmq::mtrie_t::rm (unsigned char *prefix_, size_t size_, pipe_t *pipe_)
+{
+    return rm_helper (prefix_, size_, pipe_);
+}
+
+bool zmq::mtrie_t::rm_helper (unsigned char *prefix_, size_t size_,
+    pipe_t *pipe_)
+{
+    if (!size_) {
+        if (pipes) {
+            pipes_t::size_type erased = pipes->erase (pipe_);
+            zmq_assert (erased == 1);
+            if (pipes->empty ()) {
+                delete pipes;
+                pipes = 0;
+            }
+        }
+        return !pipes;
+    }
+
+    unsigned char c = *prefix_;
+    if (!count || c < min || c >= min + count)
+        return false;
+
+    mtrie_t *next_node =
+        count == 1 ? next.node : next.table [c - min];
+
+    if (!next_node)
+        return false;
+
+    bool ret = next_node->rm_helper (prefix_ + 1, size_ - 1, pipe_);
+
+    if (next_node->is_redundant ()) {
+        delete next_node;
+        zmq_assert (count > 0);
+
+        if (count == 1) {
+            next.node = 0;
+            count = 0;
+            --live_nodes;
+            zmq_assert (live_nodes == 0);
+        }
+        else {
+            next.table [c - min] = 0;
+            zmq_assert (live_nodes > 1);
+            --live_nodes;
+
+            //  Compact the table if possible
+            if (live_nodes == 1) {
+                //  If there's only one live node in the table we can
+                //  switch to using the more compact single-node
+                //  representation
+                unsigned short i;
+                for (i = 0; i < count; ++i)
+                    if (next.table [i])
+                        break;
+
+                zmq_assert (i < count);
+                min += i;
+                count = 1;
+                mtrie_t *oldp = next.table [i];
+                free (next.table);
+                next.node = oldp;
+            }
+            else
+            if (c == min) {
+                //  We can compact the table "from the left"
+                unsigned short i;
+                for (i = 1; i < count; ++i)
+                    if (next.table [i])
+                        break;
+
+                zmq_assert (i < count);
+                min += i;
+                count -= i;
+                mtrie_t **old_table = next.table;
+                next.table = (mtrie_t**) malloc (sizeof (mtrie_t*) * count);
+                alloc_assert (next.table);
+                memmove (next.table, old_table + i, sizeof (mtrie_t*) * count);
+                free (old_table);
+            }
+            else
+            if (c == min + count - 1) {
+                //  We can compact the table "from the right"
+                unsigned short i;
+                for (i = 1; i < count; ++i)
+                    if (next.table [count - 1 - i])
+                        break;
+
+                zmq_assert (i < count);
+                count -= i;
+                mtrie_t **old_table = next.table;
+                next.table = (mtrie_t**) malloc (sizeof (mtrie_t*) * count);
+                alloc_assert (next.table);
+                memmove (next.table, old_table, sizeof (mtrie_t*) * count);
+                free (old_table);
+            }
+        }
+    }
+
+    return ret;
+}
+
+void zmq::mtrie_t::match (unsigned char *data_, size_t size_,
+    void (*func_) (pipe_t *pipe_, void *arg_), void *arg_)
+{
+    mtrie_t *current = this;
+    while (true) {
+
+        //  Signal the pipes attached to this node.
+        if (current->pipes) {
+            for (pipes_t::iterator it = current->pipes->begin ();
+                  it != current->pipes->end (); ++it)
+                func_ (*it, arg_);
+        }
+
+        //  If we are at the end of the message, there's nothing more to match.
+        if (!size_)
+            break;
+
+        //  If there are no subnodes in the trie, return.
+        if (current->count == 0)
+            break;
+
+        //  If there's one subnode (optimisation).
+		if (current->count == 1) {
+            if (data_ [0] != current->min)
+                break;
+            current = current->next.node;
+            data_++;
+            size_--;
+		    continue;
+		}
+
+		//  If there are multiple subnodes.
+        if (data_ [0] < current->min || data_ [0] >=
+              current->min + current->count)
+            break;
+        if (!current->next.table [data_ [0] - current->min])
+            break;
+        current = current->next.table [data_ [0] - current->min];
+        data_++;
+        size_--;
+    }
+}
+
+bool zmq::mtrie_t::is_redundant () const
+{
+    return !pipes && live_nodes == 0;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mtrie.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mtrie.hpp
new file mode 100644
index 00000000..6d49380c
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mtrie.hpp
@@ -0,0 +1,101 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_MTRIE_HPP_INCLUDED__
+#define __ZMQ_MTRIE_HPP_INCLUDED__
+
+#include <stddef.h>
+#include <set>
+
+#include "stdint.hpp"
+
+namespace zmq
+{
+
+    class pipe_t;
+
+    //  Multi-trie. Each node in the trie is a set of pointers to pipes.
+
+    class mtrie_t
+    {
+    public:
+
+        mtrie_t ();
+        ~mtrie_t ();
+
+        //  Add key to the trie. Returns true if it's a new subscription
+        //  rather than a duplicate.
+        bool add (unsigned char *prefix_, size_t size_, zmq::pipe_t *pipe_);
+
+        //  Remove all subscriptions for a specific peer from the trie.
+        //  If there are no subscriptions left on some topics, invoke the
+        //  supplied callback function.
+        void rm (zmq::pipe_t *pipe_,
+            void (*func_) (unsigned char *data_, size_t size_, void *arg_),
+            void *arg_);
+
+        //  Remove specific subscription from the trie. Return true is it was
+        //  actually removed rather than de-duplicated.
+        bool rm (unsigned char *prefix_, size_t size_, zmq::pipe_t *pipe_);
+
+        //  Signal all the matching pipes.
+        void match (unsigned char *data_, size_t size_,
+            void (*func_) (zmq::pipe_t *pipe_, void *arg_), void *arg_);
+
+    private:
+
+        bool add_helper (unsigned char *prefix_, size_t size_,
+            zmq::pipe_t *pipe_);
+        void rm_helper (zmq::pipe_t *pipe_, unsigned char **buff_,
+            size_t buffsize_, size_t maxbuffsize_,
+            void (*func_) (unsigned char *data_, size_t size_, void *arg_),
+            void *arg_);
+        bool rm_helper (unsigned char *prefix_, size_t size_,
+            zmq::pipe_t *pipe_);
+        bool is_redundant () const;
+
+        typedef std::set <zmq::pipe_t*> pipes_t;
+        pipes_t *pipes;
+
+        unsigned char min;
+        unsigned short count;
+        unsigned short live_nodes;
+        union {
+            class mtrie_t *node;
+            class mtrie_t **table;
+        } next;
+
+        mtrie_t (const mtrie_t&);
+        const mtrie_t &operator = (const mtrie_t&);
+    };
+
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mutex.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mutex.hpp
new file mode 100644
index 00000000..80a38f5c
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/mutex.hpp
@@ -0,0 +1,167 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_MUTEX_HPP_INCLUDED__
+#define __ZMQ_MUTEX_HPP_INCLUDED__
+
+#include "platform.hpp"
+#include "err.hpp"
+
+//  Mutex class encapsulates OS mutex in a platform-independent way.
+
+#ifdef ZMQ_HAVE_WINDOWS
+
+#include "windows.hpp"
+
+namespace zmq
+{
+
+    class mutex_t
+    {
+    public:
+        inline mutex_t ()
+        {
+            InitializeCriticalSection (&cs);
+        }
+
+        inline ~mutex_t ()
+        {
+            DeleteCriticalSection (&cs);
+        }
+
+        inline void lock ()
+        {
+            EnterCriticalSection (&cs);
+        }
+
+        inline bool try_lock ()
+        {
+            return (TryEnterCriticalSection (&cs)) ? true : false;
+        }
+
+        inline void unlock ()
+        {
+            LeaveCriticalSection (&cs);
+        }
+
+    private:
+
+        CRITICAL_SECTION cs;
+
+        //  Disable copy construction and assignment.
+        mutex_t (const mutex_t&);
+        void operator = (const mutex_t&);
+    };
+
+}
+
+#else
+
+#include <pthread.h>
+
+namespace zmq
+{
+
+    class mutex_t
+    {
+    public:
+        inline mutex_t ()
+        {
+            int rc = pthread_mutex_init (&mutex, NULL);
+            posix_assert (rc);
+        }
+
+        inline ~mutex_t ()
+        {
+            int rc = pthread_mutex_destroy (&mutex);
+            posix_assert (rc);
+        }
+
+        inline void lock ()
+        {
+            int rc = pthread_mutex_lock (&mutex);
+            posix_assert (rc);
+        }
+
+        inline bool try_lock ()
+        {
+            int rc = pthread_mutex_trylock (&mutex);
+            if (rc == EBUSY)
+                return false;
+
+            posix_assert (rc);
+            return true;
+        }
+
+        inline void unlock ()
+        {
+            int rc = pthread_mutex_unlock (&mutex);
+            posix_assert (rc);
+        }
+
+    private:
+
+        pthread_mutex_t mutex;
+
+        // Disable copy construction and assignment.
+        mutex_t (const mutex_t&);
+        const mutex_t &operator = (const mutex_t&);
+    };
+
+}
+
+#endif
+
+
+namespace zmq
+{
+    struct scoped_lock_t
+    {
+        scoped_lock_t (mutex_t& mutex_)
+            : mutex (mutex_)
+        {
+            mutex.lock ();
+        }
+
+        ~scoped_lock_t ()
+        {
+            mutex.unlock ();
+        }
+
+    private:
+
+        mutex_t& mutex;
+
+        // Disable copy construction and assignment.
+        scoped_lock_t (const scoped_lock_t&);
+        const scoped_lock_t &operator = (const scoped_lock_t&);
+    };
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/norm_engine.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/norm_engine.cpp
new file mode 100644
index 00000000..23eac066
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/norm_engine.cpp
@@ -0,0 +1,728 @@
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_NORM
+
+#include "norm_engine.hpp"
+#include "session_base.hpp"
+#include "v2_protocol.hpp"
+
+zmq::norm_engine_t::norm_engine_t(io_thread_t*     parent_,
+                                  const options_t& options_)
+ : io_object_t(parent_), zmq_session(NULL), options(options_),  
+   norm_instance(NORM_INSTANCE_INVALID), norm_session(NORM_SESSION_INVALID), 
+   is_sender(false), is_receiver(false),
+   zmq_encoder(0), norm_tx_stream(NORM_OBJECT_INVALID), 
+   tx_first_msg(true), tx_more_bit(false), 
+   zmq_output_ready(false), norm_tx_ready(false), 
+   tx_index(0), tx_len(0),
+   zmq_input_ready(false)  
+{
+    int rc = tx_msg.init();
+    errno_assert(0 == rc);
+}
+
+zmq::norm_engine_t::~norm_engine_t()
+{
+    shutdown();  // in case it was not already called
+}
+
+
+int zmq::norm_engine_t::init(const char* network_, bool send, bool recv)
+{
+    // Parse the "network_" address int "iface", "addr", and "port"
+    // norm endpoint format: [id,][<iface>;]<addr>:<port>
+    // First, look for optional local NormNodeId
+    // (default NORM_NODE_ANY causes NORM to use host IP addr for NormNodeId)
+    NormNodeId localId = NORM_NODE_ANY;
+    const char* ifacePtr = strchr(network_, ',');
+    if (NULL != ifacePtr)
+    {
+        size_t idLen = ifacePtr - network_;
+        if (idLen > 31) idLen = 31;
+        char idText[32];
+        strncpy(idText, network_, idLen);
+        idText[idLen] = '\0';
+        localId = (NormNodeId)atoi(idText);
+        ifacePtr++;
+    }
+    else
+    {
+        ifacePtr = network_;
+    }
+    
+    // Second, look for optional multicast ifaceName
+    char ifaceName[256];
+    const char* addrPtr = strchr(ifacePtr, ';');
+    if (NULL != addrPtr)
+    {
+        size_t ifaceLen = addrPtr - ifacePtr;
+        if (ifaceLen > 255) ifaceLen = 255;  // return error instead?
+        strncpy(ifaceName, ifacePtr, ifaceLen);
+        ifaceName[ifaceLen] = '\0';
+        ifacePtr = ifaceName;
+        addrPtr++;
+    }
+    else
+    {
+        addrPtr = ifacePtr;
+        ifacePtr = NULL;
+    }
+    
+    // Finally, parse IP address and port number
+    const char* portPtr = strrchr(addrPtr, ':');
+    if (NULL == portPtr)
+    {
+        errno = EINVAL;
+        return -1;
+    }
+    
+    char addr[256];
+    size_t addrLen = portPtr - addrPtr;
+    if (addrLen > 255) addrLen = 255;
+    strncpy(addr, addrPtr, addrLen);
+    addr[addrLen] = '\0';
+    portPtr++;
+    unsigned short portNumber = atoi(portPtr);
+    
+    if (NORM_INSTANCE_INVALID == norm_instance)
+    {
+        if (NORM_INSTANCE_INVALID == (norm_instance = NormCreateInstance()))
+        {
+            // errno set by whatever caused NormCreateInstance() to fail
+            return -1;
+        }
+    }
+    
+    // TBD - What do we use for our local NormNodeId?
+    //       (for now we use automatic, IP addr based assignment or passed in 'id')
+    //       a) Use ZMQ Identity somehow?
+    //       b) Add function to use iface addr
+    //       c) Randomize and implement a NORM session layer
+    //          conflict detection/resolution protocol
+    
+    norm_session = NormCreateSession(norm_instance, addr, portNumber, localId);
+    if (NORM_SESSION_INVALID == norm_session)
+    {
+        int savedErrno = errno;
+        NormDestroyInstance(norm_instance);
+        norm_instance = NORM_INSTANCE_INVALID;
+        errno = savedErrno;
+        return -1;
+    }
+    // There's many other useful NORM options that could be applied here
+    if (NormIsUnicastAddress(addr))
+    {
+        NormSetDefaultUnicastNack(norm_session, true);
+    }
+    else
+    {
+        // These only apply for multicast sessions
+        //NormSetTTL(norm_session, options.multicast_hops);  // ZMQ default is 1
+        NormSetTTL(norm_session, 255);  // since the ZMQ_MULTICAST_HOPS socket option isn't well-supported
+        NormSetRxPortReuse(norm_session, true);  // port reuse doesn't work for non-connected unicast
+        NormSetLoopback(norm_session, true);  // needed when multicast users on same machine
+        if (NULL != ifacePtr)
+        {
+            // Note a bad interface may not be caught until sender or receiver start
+            // (Since sender/receiver is not yet started, this always succeeds here)
+            NormSetMulticastInterface(norm_session, ifacePtr);
+        }
+    }
+    
+    if (recv)
+    {
+        // The alternative NORM_SYNC_CURRENT here would provide "instant"
+        // receiver sync to the sender's _current_ message transmission.
+        // NORM_SYNC_STREAM tries to get everything the sender has cached/buffered
+        NormSetDefaultSyncPolicy(norm_session, NORM_SYNC_STREAM);
+        if (!NormStartReceiver(norm_session, 2*1024*1024))
+        {
+            // errno set by whatever failed
+            int savedErrno = errno;
+            NormDestroyInstance(norm_instance); // session gets closed, too
+            norm_session = NORM_SESSION_INVALID;
+            norm_instance = NORM_INSTANCE_INVALID;
+            errno = savedErrno;
+            return -1;
+        }
+        is_receiver = true;
+    }
+    
+    if (send)
+    {
+        // Pick a random sender instance id (aka norm sender session id)
+        NormSessionId instanceId = NormGetRandomSessionId();
+        // TBD - provide "options" for some NORM sender parameters
+        if (!NormStartSender(norm_session, instanceId, 2*1024*1024, 1400, 16, 4))
+        {
+            // errno set by whatever failed
+            int savedErrno = errno;
+            NormDestroyInstance(norm_instance); // session gets closed, too
+            norm_session = NORM_SESSION_INVALID;
+            norm_instance = NORM_INSTANCE_INVALID;
+            errno = savedErrno;
+            return -1;
+        }    
+        NormSetCongestionControl(norm_session, true);
+        norm_tx_ready = true;
+        is_sender = true;   
+        if (NORM_OBJECT_INVALID == (norm_tx_stream = NormStreamOpen(norm_session, 2*1024*1024)))
+        {
+            // errno set by whatever failed
+            int savedErrno = errno;
+            NormDestroyInstance(norm_instance); // session gets closed, too
+            norm_session = NORM_SESSION_INVALID;
+            norm_instance = NORM_INSTANCE_INVALID;
+            errno = savedErrno;
+            return -1;
+        }
+    }
+    
+    //NormSetMessageTrace(norm_session, true);
+    //NormSetDebugLevel(3);
+    //NormOpenDebugLog(norm_instance, "normLog.txt");
+    
+    return 0;  // no error
+}  // end zmq::norm_engine_t::init()
+
+void zmq::norm_engine_t::shutdown()
+{
+    // TBD - implement a more graceful shutdown option
+    if (is_receiver)
+    {
+        NormStopReceiver(norm_session);
+        
+        // delete any active NormRxStreamState
+        rx_pending_list.Destroy();
+        rx_ready_list.Destroy();
+        msg_ready_list.Destroy();
+        
+        is_receiver = false;
+    }
+    if (is_sender)
+    {
+        NormStopSender(norm_session);
+        is_sender = false;
+    }
+    if (NORM_SESSION_INVALID != norm_session)
+    {
+        NormDestroySession(norm_session);
+        norm_session = NORM_SESSION_INVALID;
+    }
+    if (NORM_INSTANCE_INVALID != norm_instance)
+    {
+        NormStopInstance(norm_instance);
+        NormDestroyInstance(norm_instance);
+        norm_instance = NORM_INSTANCE_INVALID;
+    }
+}  // end zmq::norm_engine_t::shutdown()
+
+void zmq::norm_engine_t::plug (io_thread_t* io_thread_, session_base_t *session_)
+{
+    // TBD - we may assign the NORM engine to an io_thread in the future???
+    zmq_session = session_;
+    if (is_sender) zmq_output_ready = true;
+    if (is_receiver) zmq_input_ready = true;
+    
+    fd_t normDescriptor = NormGetDescriptor(norm_instance);
+    norm_descriptor_handle = add_fd(normDescriptor);
+    // Set POLLIN for notification of pending NormEvents
+    set_pollin(norm_descriptor_handle); 
+    
+    if (is_sender) send_data();
+    
+}  // end zmq::norm_engine_t::init()
+
+void zmq::norm_engine_t::unplug()
+{
+    rm_fd(norm_descriptor_handle);
+    
+    zmq_session = NULL;
+}  // end zmq::norm_engine_t::unplug()
+
+void zmq::norm_engine_t::terminate()
+{
+    unplug();
+    shutdown();
+    delete this;
+}
+
+void zmq::norm_engine_t::restart_output()
+{
+    // There's new message data available from the session
+    zmq_output_ready = true;
+    if (norm_tx_ready) send_data();
+    
+}  // end zmq::norm_engine_t::restart_output()
+
+void zmq::norm_engine_t::send_data()
+{
+    // Here we write as much as is available or we can
+    while (zmq_output_ready && norm_tx_ready)
+    {
+        if (0 == tx_len)
+        {
+            // Our tx_buffer needs data to send
+            // Get more data from encoder
+            size_t space = BUFFER_SIZE;
+            unsigned char* bufPtr = (unsigned char*)tx_buffer;
+            tx_len = zmq_encoder.encode(&bufPtr, space);
+            if (0 == tx_len)
+            {
+                if (tx_first_msg)
+                {
+                    // We don't need to mark eom/flush until a message is sent
+                    tx_first_msg = false;
+                }
+                else
+                {
+                    // A prior message was completely written to stream, so
+                    // mark end-of-message and possibly flush (to force packet transmission,
+                    // even if it's not a full segment so message gets delivered quickly)
+                    // NormStreamMarkEom(norm_tx_stream);  // the flush below marks eom
+                    // Note NORM_FLUSH_ACTIVE makes NORM fairly chatty for low duty cycle messaging
+                    // but makes sure content is delivered quickly.  Positive acknowledgements
+                    // with flush override would make NORM more succinct here
+                    NormStreamFlush(norm_tx_stream, true, NORM_FLUSH_ACTIVE);
+                }
+                // Need to pull and load a new message to send
+                if (-1 == zmq_session->pull_msg(&tx_msg))
+                {
+                    // We need to wait for "restart_output()" to be called by ZMQ 
+                    zmq_output_ready = false;
+                    break;
+                }
+                zmq_encoder.load_msg(&tx_msg);
+                // Should we write message size header for NORM to use? Or expect NORM
+                // receiver to decode ZMQ message framing format(s)?
+                // OK - we need to use a byte to denote when the ZMQ frame is the _first_
+                //      frame of a message so it can be decoded properly when a receiver
+                //      'syncs' mid-stream.  We key off the the state of the 'more_flag'
+                //      I.e.,If  more_flag _was_ false previously, this is the first
+                //      frame of a ZMQ message.
+                if (tx_more_bit) 
+                    tx_buffer[0] = (char)0xff;  // this is not first frame of message
+                else
+                    tx_buffer[0] = 0x00;  // this is first frame of message
+                tx_more_bit = (0 != (tx_msg.flags() & msg_t::more));
+                // Go ahead an get a first chunk of the message
+                bufPtr++;
+                space--;
+                tx_len = 1 + zmq_encoder.encode(&bufPtr, space);
+                tx_index = 0;
+            }
+        }
+        // Do we have data in our tx_buffer pending
+        if (tx_index < tx_len)
+        {
+            // We have data in our tx_buffer to send, so write it to the stream
+            tx_index += NormStreamWrite(norm_tx_stream, tx_buffer + tx_index, tx_len - tx_index);
+            if (tx_index < tx_len)
+            {
+                // NORM stream buffer full, wait for NORM_TX_QUEUE_VACANCY
+                norm_tx_ready = false;
+                break;
+            }
+            tx_len = 0;  // all buffered data was written
+        }
+    }  // end while (zmq_output_ready && norm_tx_ready)
+}  // end zmq::norm_engine_t::send_data()
+
+void zmq::norm_engine_t::in_event()
+{
+    // This means a NormEvent is pending, so call NormGetNextEvent() and handle
+    NormEvent event;
+    if (!NormGetNextEvent(norm_instance, &event))
+    {
+        // NORM has died before we unplugged?!
+        zmq_assert(false);
+        return;
+    }
+    
+    switch(event.type)
+    {
+        case NORM_TX_QUEUE_VACANCY:
+        case NORM_TX_QUEUE_EMPTY:
+            if (!norm_tx_ready)
+            {
+                norm_tx_ready = true;
+                send_data();
+            }
+            break;
+            
+        case NORM_RX_OBJECT_NEW:
+            //break;
+        case NORM_RX_OBJECT_UPDATED:
+            recv_data(event.object);
+            break;
+            
+        case NORM_RX_OBJECT_ABORTED:
+        {
+            NormRxStreamState* rxState = (NormRxStreamState*)NormObjectGetUserData(event.object);
+            if (NULL != rxState)
+            {
+                // Remove the state from the list it's in
+                // This is now unnecessary since deletion takes care of list removal
+                // but in the interest of being clear ...
+                NormRxStreamState::List* list = rxState->AccessList();
+                if (NULL != list) list->Remove(*rxState);
+            }
+            delete rxState;
+            break;
+        }           
+        case NORM_REMOTE_SENDER_INACTIVE:
+            // Here we free resources used for this formerly active sender.
+            // Note w/ NORM_SYNC_STREAM, if sender reactivates, we may
+            //  get some messages delivered twice.  NORM_SYNC_CURRENT would
+            // mitigate that but might miss data at startup. Always tradeoffs.
+            // Instead of immediately deleting, we could instead initiate a
+            // user configurable timeout here to wait some amount of time
+            // after this event to declare the remote sender truly dead
+            // and delete its state???
+            NormNodeDelete(event.sender);  
+            break;
+            
+        default:
+            // We ignore some NORM events 
+            break;
+    }
+}  // zmq::norm_engine_t::in_event()
+
+void zmq::norm_engine_t::restart_input()
+{
+    // TBD - should we check/assert that zmq_input_ready was false???
+    zmq_input_ready = true;
+    // Process any pending received messages
+    if (!msg_ready_list.IsEmpty())
+        recv_data(NORM_OBJECT_INVALID);
+    
+}  // end zmq::norm_engine_t::restart_input()
+
+void zmq::norm_engine_t::recv_data(NormObjectHandle object)
+{
+    if (NORM_OBJECT_INVALID != object)
+    {
+        // Call result of NORM_RX_OBJECT_UPDATED notification
+        // This is a rx_ready indication for a new or existing rx stream
+        // First, determine if this is a stream we already know
+        zmq_assert(NORM_OBJECT_STREAM == NormObjectGetType(object));
+        // Since there can be multiple senders (publishers), we keep
+        // state for each separate rx stream.
+        NormRxStreamState* rxState = (NormRxStreamState*)NormObjectGetUserData(object);
+        if (NULL == rxState)
+        {
+            // This is a new stream, so create rxState with zmq decoder, etc
+            rxState = new NormRxStreamState(object, options.maxmsgsize);
+            if (!rxState->Init())
+            {
+                errno_assert(false);
+                delete rxState;
+                return;
+            }
+            NormObjectSetUserData(object, rxState);
+        }
+        else if (!rxState->IsRxReady())
+        {
+            // Existing non-ready stream, so remove from pending
+            // list to be promoted to rx_ready_list ...
+            rx_pending_list.Remove(*rxState);
+        }
+        if (!rxState->IsRxReady())
+        {
+            // TBD - prepend up front for immediate service?
+            rxState->SetRxReady(true);
+            rx_ready_list.Append(*rxState);
+        }
+    }
+    // This loop repeats until we've read all data available from "rx ready" inbound streams
+    // and pushed any accumulated messages we can up to the zmq session.
+    while (!rx_ready_list.IsEmpty() || (zmq_input_ready && !msg_ready_list.IsEmpty()))
+    {
+        // Iterate through our rx_ready streams, reading data into the decoder
+        // (This services incoming "rx ready" streams in a round-robin fashion)
+        NormRxStreamState::List::Iterator iterator(rx_ready_list);
+        NormRxStreamState* rxState;
+        while (NULL != (rxState = iterator.GetNextItem()))
+        {
+            switch(rxState->Decode())
+            {
+                case 1:  // msg completed   
+                    // Complete message decoded, move this stream to msg_ready_list
+                    // to push the message up to the session below.  Note the stream 
+                    // will be returned to the "rx_ready_list" after that's done
+                    rx_ready_list.Remove(*rxState);
+                    msg_ready_list.Append(*rxState);
+                    continue;
+                    
+                case -1: // decoding error (shouldn't happen w/ NORM, but ...)
+                    // We need to re-sync this stream (decoder buffer was reset)
+                    rxState->SetSync(false);
+                    break;
+                    
+                default:  // 0 - need more data
+                    break;
+            }
+            // Get more data from this stream
+            NormObjectHandle stream = rxState->GetStreamHandle();
+            // First, make sure we're in sync ...
+            while (!rxState->InSync())
+            {
+                // seek NORM message start
+                if (!NormStreamSeekMsgStart(stream))
+                {
+                    // Need to wait for more data
+                    break;
+                }
+                // read message 'flag' byte to see if this it's a 'final' frame
+                char syncFlag;
+                unsigned int numBytes = 1;
+                if (!NormStreamRead(stream, &syncFlag, &numBytes))
+                {
+                    // broken stream (shouldn't happen after seek msg start?)
+                    zmq_assert(false);
+                    continue;
+                }
+                if (0 == numBytes)
+                {
+                    // This probably shouldn't happen either since we found msg start
+                    // Need to wait for more data
+                    break;
+                }
+                if (0 == syncFlag) rxState->SetSync(true);
+                // else keep seeking ...
+            }  // end while(!rxState->InSync())
+            if (!rxState->InSync())
+            {
+                // Need more data for this stream, so remove from "rx ready"
+                // list and iterate to next "rx ready" stream
+                rxState->SetRxReady(false);
+                // Move from rx_ready_list to rx_pending_list
+                rx_ready_list.Remove(*rxState);
+                rx_pending_list.Append(*rxState);
+                continue;
+            }
+            // Now we're actually ready to read data from the NORM stream to the zmq_decoder
+            // the underlying zmq_decoder->get_buffer() call sets how much is needed.
+            unsigned int numBytes = rxState->GetBytesNeeded();
+            if (!NormStreamRead(stream, rxState->AccessBuffer(), &numBytes))
+            {
+                // broken NORM stream, so re-sync
+                rxState->Init();  // TBD - check result
+                // This will retry syncing, and getting data from this stream
+                // since we don't increment the "it" iterator
+                continue;
+            }
+            rxState->IncrementBufferCount(numBytes);
+            if (0 == numBytes)
+            {
+                // All the data available has been read
+                // Need to wait for NORM_RX_OBJECT_UPDATED for this stream
+                rxState->SetRxReady(false);
+                // Move from rx_ready_list to rx_pending_list
+                rx_ready_list.Remove(*rxState);
+                rx_pending_list.Append(*rxState);
+            }
+        }  // end while(NULL != (rxState = iterator.GetNextItem()))
+        
+        if (zmq_input_ready)
+        {
+            // At this point, we've made a pass through the "rx_ready" stream list
+            // Now make a pass through the "msg_pending" list (if the zmq session 
+            // ready for more input).  This may possibly return streams back to 
+            // the "rx ready" stream list after their pending message is handled
+            NormRxStreamState::List::Iterator iterator(msg_ready_list);
+            NormRxStreamState* rxState;
+            while (NULL != (rxState = iterator.GetNextItem()))
+            {
+                msg_t* msg = rxState->AccessMsg();
+                int rc = zmq_session->push_msg(msg);
+                if (-1 == rc)
+                {
+                    if (EAGAIN == errno)
+                    {
+                        // need to wait until session calls "restart_input()"
+                        zmq_input_ready = false;
+                        break;
+                    }
+                    else
+                    {
+                        // session rejected message?
+                        // TBD - handle this better
+                        zmq_assert(false); 
+                    }
+                }
+                // else message was accepted.
+                msg_ready_list.Remove(*rxState);
+                if (rxState->IsRxReady())  // Move back to "rx_ready" list to read more data
+                    rx_ready_list.Append(*rxState);
+                else  // Move back to "rx_pending" list until NORM_RX_OBJECT_UPDATED
+                    msg_ready_list.Append(*rxState);
+            }  // end while(NULL != (rxState = iterator.GetNextItem()))
+        }  // end if (zmq_input_ready)
+    }  // end while ((!rx_ready_list.empty() || (zmq_input_ready && !msg_ready_list.empty()))
+    
+    // Alert zmq of the messages we have pushed up
+    zmq_session->flush();
+    
+}  // end zmq::norm_engine_t::recv_data()
+
+zmq::norm_engine_t::NormRxStreamState::NormRxStreamState(NormObjectHandle normStream, 
+                                                         int64_t          maxMsgSize)
+ : norm_stream(normStream), max_msg_size(maxMsgSize), 
+   in_sync(false), rx_ready(false), zmq_decoder(NULL), skip_norm_sync(false),
+   buffer_ptr(NULL), buffer_size(0), buffer_count(0),
+   prev(NULL), next(NULL), list(NULL)
+{
+}
+
+zmq::norm_engine_t::NormRxStreamState::~NormRxStreamState()
+{
+    if (NULL != zmq_decoder)
+    {
+        delete zmq_decoder;
+        zmq_decoder = NULL;
+    }
+    if (NULL != list)
+    {
+        list->Remove(*this);
+        list = NULL;
+    }
+}
+
+bool zmq::norm_engine_t::NormRxStreamState::Init()
+{
+    in_sync = false;
+    skip_norm_sync = false;
+    if (NULL != zmq_decoder) delete zmq_decoder;
+    // Note "in_batch_size" comes from config.h
+    zmq_decoder = new (std::nothrow) v2_decoder_t (in_batch_size, max_msg_size);
+    alloc_assert (zmq_decoder);
+    if (NULL != zmq_decoder)
+    {
+        buffer_count = 0;
+        buffer_size = 0;
+        zmq_decoder->get_buffer(&buffer_ptr, &buffer_size);
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}  // end zmq::norm_engine_t::NormRxStreamState::Init()
+
+// This decodes any pending data sitting in our stream decoder buffer
+// It returns 1 upon message completion, -1 on error, 1 on msg completion
+int zmq::norm_engine_t::NormRxStreamState::Decode()
+{
+    // If we have pending bytes to decode, process those first
+    while (buffer_count > 0)
+    {
+        // There's pending data for the decoder to decode
+        size_t processed = 0;
+        
+        // This a bit of a kludgy approach used to weed
+        // out the NORM ZMQ message transport "syncFlag" byte
+        // from the ZMQ message stream being decoded (but it works!)
+        if (skip_norm_sync) 
+        {
+            buffer_ptr++;
+            buffer_count--;
+            skip_norm_sync = false;
+        }
+        
+        int rc = zmq_decoder->decode(buffer_ptr, buffer_count, processed);
+        buffer_ptr += processed;
+        buffer_count -= processed;
+        switch (rc)
+        {
+            case 1:
+                // msg completed
+                if (0 == buffer_count)
+                {
+                    buffer_size = 0;
+                    zmq_decoder->get_buffer(&buffer_ptr, &buffer_size);
+                }
+                skip_norm_sync = true;
+                return 1;
+            case -1:
+                // decoder error (reset decoder and state variables)
+                in_sync = false;
+                skip_norm_sync = false;  // will get consumed by norm sync check
+                Init();
+                break;
+                
+            case 0:
+                // need more data, keep decoding until buffer exhausted
+                break;
+        }
+    }
+    // Reset buffer pointer/count for next read
+    buffer_count = 0;
+    buffer_size = 0;
+    zmq_decoder->get_buffer(&buffer_ptr, &buffer_size);
+    return 0;  //  need more data
+    
+}  // end zmq::norm_engine_t::NormRxStreamState::Decode()
+
+zmq::norm_engine_t::NormRxStreamState::List::List()
+ : head(NULL), tail(NULL)
+{
+}
+
+zmq::norm_engine_t::NormRxStreamState::List::~List()
+{
+    Destroy();
+}
+
+void zmq::norm_engine_t::NormRxStreamState::List::Destroy()
+{
+    NormRxStreamState* item = head;
+    while (NULL != item)
+    {
+        Remove(*item);
+        delete item;
+        item = head;
+    }
+}  // end zmq::norm_engine_t::NormRxStreamState::List::Destroy()
+
+void zmq::norm_engine_t::NormRxStreamState::List::Append(NormRxStreamState& item)
+{
+    item.prev = tail;
+    if (NULL != tail)
+        tail->next = &item;
+    else
+        head = &item;
+    item.next = NULL;
+    tail = &item;
+    item.list = this;
+}  // end zmq::norm_engine_t::NormRxStreamState::List::Append()
+
+void zmq::norm_engine_t::NormRxStreamState::List::Remove(NormRxStreamState& item)
+{
+    if (NULL != item.prev)
+        item.prev->next = item.next;
+    else
+        head = item.next;
+    if (NULL != item.next)
+        item.next ->prev = item.prev;
+    else
+        tail = item.prev;
+    item.prev = item.next = NULL;
+    item.list = NULL;
+}  // end zmq::norm_engine_t::NormRxStreamState::List::Remove()
+
+zmq::norm_engine_t::NormRxStreamState::List::Iterator::Iterator(const List& list)
+ : next_item(list.head)
+{
+}
+
+zmq::norm_engine_t::NormRxStreamState* zmq::norm_engine_t::NormRxStreamState::List::Iterator::GetNextItem()
+{
+    NormRxStreamState* nextItem = next_item;
+    if (NULL != nextItem) next_item = nextItem->next;
+    return nextItem;
+}  // end zmq::norm_engine_t::NormRxStreamState::List::Iterator::GetNextItem()
+    
+
+#endif // ZMQ_HAVE_NORM
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/norm_engine.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/norm_engine.hpp
new file mode 100644
index 00000000..72542e19
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/norm_engine.hpp
@@ -0,0 +1,188 @@
+
+#ifndef __ZMQ_NORM_ENGINE_HPP_INCLUDED__
+#define __ZMQ_NORM_ENGINE_HPP_INCLUDED__
+
+#if defined ZMQ_HAVE_NORM
+
+#include "io_object.hpp"
+#include "i_engine.hpp"
+#include "options.hpp"
+#include "v2_decoder.hpp"
+#include "v2_encoder.hpp"
+
+#include <normApi.h>
+
+namespace zmq
+{
+    class io_thread_t;
+    class session_base_t;
+    
+    class norm_engine_t : public io_object_t, public i_engine
+    {
+        public:
+            norm_engine_t (zmq::io_thread_t *parent_, const options_t &options_);
+            ~norm_engine_t ();
+            
+            // create NORM instance, session, etc
+            int init(const char* network_, bool send, bool recv);
+            void shutdown();
+            
+            //  i_engine interface implementation.
+            //  Plug the engine to the session.
+            virtual void plug (zmq::io_thread_t *io_thread_,
+                               class session_base_t *session_);
+
+            //  Terminate and deallocate the engine. Note that 'detached'
+            //  events are not fired on termination.
+            virtual void terminate ();
+
+            //  This method is called by the session to signalise that more
+            //  messages can be written to the pipe.
+            virtual void restart_input ();
+
+            //  This method is called by the session to signalise that there
+            //  are messages to send available.
+            virtual void restart_output ();
+
+            virtual void zap_msg_available () {};
+            
+            // i_poll_events interface implementation.
+            // (we only need in_event() for NormEvent notification)
+            // (i.e., don't have any output events or timers (yet))
+            void in_event ();
+            
+        private:
+            void unplug();
+            void send_data();
+            void recv_data(NormObjectHandle stream);      
+                
+                
+            enum {BUFFER_SIZE = 2048};
+                   
+            // Used to keep track of streams from multiple senders     
+            class NormRxStreamState
+            {
+                public:
+                    NormRxStreamState(NormObjectHandle normStream,
+                                      int64_t          maxMsgSize);
+                    ~NormRxStreamState();
+                    
+                    NormObjectHandle GetStreamHandle() const
+                        {return norm_stream;}
+                    
+                    bool Init();
+                    
+                    void SetRxReady(bool state)
+                        {rx_ready = state;}
+                    bool IsRxReady() const
+                        {return rx_ready;}
+                    
+                    void SetSync(bool state)
+                        {in_sync = state;}
+                    bool InSync() const
+                        {return in_sync;}
+                    
+                    // These are used to feed data to decoder
+                    // and its underlying "msg" buffer
+                    char* AccessBuffer()
+                        {return (char*)(buffer_ptr + buffer_count);}
+                    size_t GetBytesNeeded() const
+                        {return (buffer_size - buffer_count);}
+                    void IncrementBufferCount(size_t count)
+                        {buffer_count += count;}
+                    msg_t* AccessMsg()
+                        {return zmq_decoder->msg();}
+                    // This invokes the decoder "decode" method
+                    // returning 0 if more data is needed,
+                    // 1 if the message is complete, If an error
+                    // occurs the 'sync' is dropped and the
+                    // decoder re-initialized
+                    int Decode();
+                    
+                    class List
+                    {
+                        public:
+                            List();
+                            ~List();
+                            
+                            void Append(NormRxStreamState& item);
+                            void Remove(NormRxStreamState& item);
+                            
+                            bool IsEmpty() const
+                                {return (NULL == head);}
+                            
+                            void Destroy();
+                            
+                            class Iterator
+                            {
+                                public:
+                                    Iterator(const List& list);
+                                    NormRxStreamState* GetNextItem();
+                                private:
+                                    NormRxStreamState* next_item;
+                            };
+                            friend class Iterator;
+                            
+                        private:
+                            NormRxStreamState*  head;
+                            NormRxStreamState*  tail;        
+                                
+                    };  // end class zmq::norm_engine_t::NormRxStreamState::List
+                    
+                    friend class List;
+                    
+                    List* AccessList()
+                        {return list;}
+                    
+                    
+                private:
+                    NormObjectHandle            norm_stream;
+                    int64_t                     max_msg_size;
+                    bool                        in_sync; 
+                    bool                        rx_ready;
+                    v2_decoder_t*               zmq_decoder;
+                    bool                        skip_norm_sync;
+                    unsigned char*              buffer_ptr;
+                    size_t                      buffer_size;
+                    size_t                      buffer_count;
+                    
+                    NormRxStreamState*          prev;
+                    NormRxStreamState*          next;
+                    NormRxStreamState::List*    list;
+                
+            };  // end class zmq::norm_engine_t::NormRxStreamState
+            
+            session_base_t*         zmq_session;
+            options_t               options;
+            NormInstanceHandle      norm_instance;
+            handle_t                norm_descriptor_handle;
+            NormSessionHandle       norm_session;
+            bool                    is_sender;
+            bool                    is_receiver;
+            // Sender state
+            msg_t                   tx_msg;
+            v2_encoder_t            zmq_encoder;    // for tx messages (we use v2 for now)  
+            NormObjectHandle        norm_tx_stream;
+            bool                    tx_first_msg;
+            bool                    tx_more_bit;
+            bool                    zmq_output_ready; // zmq has msg(s) to send 
+            bool                    norm_tx_ready;    // norm has tx queue vacancy
+            // tbd - maybe don't need buffer if can access zmq message buffer directly?
+            char                    tx_buffer[BUFFER_SIZE];
+            unsigned int            tx_index;
+            unsigned int            tx_len;
+            
+            // Receiver state
+            // Lists of norm rx streams from remote senders
+            bool                    zmq_input_ready; // zmq ready to receive msg(s)
+            NormRxStreamState::List rx_pending_list; // rx streams waiting for data reception
+            NormRxStreamState::List rx_ready_list;   // rx streams ready for NormStreamRead()
+            NormRxStreamState::List msg_ready_list;  // rx streams w/ msg ready for push to zmq
+            
+        
+    };  // end class norm_engine_t
+}
+
+#endif // ZMQ_HAVE_NORM
+
+#endif // !__ZMQ_NORM_ENGINE_HPP_INCLUDED__
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/null_mechanism.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/null_mechanism.cpp
new file mode 100644
index 00000000..d9157e20
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/null_mechanism.cpp
@@ -0,0 +1,358 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include <stddef.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "err.hpp"
+#include "msg.hpp"
+#include "session_base.hpp"
+#include "wire.hpp"
+#include "null_mechanism.hpp"
+
+zmq::null_mechanism_t::null_mechanism_t (session_base_t *session_,
+                                         const std::string &peer_address_,
+                                         const options_t &options_) :
+    mechanism_t (options_),
+    session (session_),
+    peer_address (peer_address_),
+    ready_command_sent (false),
+    error_command_sent (false),
+    ready_command_received (false),
+    error_command_received (false),
+    zap_connected (false),
+    zap_request_sent (false),
+    zap_reply_received (false)
+{
+    //  NULL mechanism only uses ZAP if there's a domain defined
+    //  This prevents ZAP requests on naive sockets
+    if (options.zap_domain.size () > 0
+    &&  session->zap_connect () == 0)
+        zap_connected = true;
+}
+
+zmq::null_mechanism_t::~null_mechanism_t ()
+{
+}
+
+int zmq::null_mechanism_t::next_handshake_command (msg_t *msg_)
+{
+    if (ready_command_sent || error_command_sent) {
+        errno = EAGAIN;
+        return -1;
+    }
+    if (zap_connected && !zap_reply_received) {
+        if (zap_request_sent) {
+            errno = EAGAIN;
+            return -1;
+        }
+        send_zap_request ();
+        zap_request_sent = true;
+        const int rc = receive_and_process_zap_reply ();
+        if (rc != 0)
+            return -1;
+        zap_reply_received = true;
+    }
+
+    if (zap_reply_received
+    &&  strncmp (status_code, "200", sizeof status_code) != 0) {
+        const int rc = msg_->init_size (6 + 1 + sizeof status_code);
+        zmq_assert (rc == 0);
+        unsigned char *msg_data =
+            static_cast <unsigned char *> (msg_->data ());
+        memcpy (msg_data, "\5ERROR", 6);
+        msg_data [6] = sizeof status_code;
+        memcpy (msg_data + 7, status_code, sizeof status_code);
+        error_command_sent = true;
+        return 0;
+    }
+
+    unsigned char *const command_buffer = (unsigned char *) malloc (512);
+    alloc_assert (command_buffer);
+
+    unsigned char *ptr = command_buffer;
+
+    //  Add mechanism string
+    memcpy (ptr, "\5READY", 6);
+    ptr += 6;
+
+    //  Add socket type property
+    const char *socket_type = socket_type_string (options.type);
+    ptr += add_property (ptr, "Socket-Type", socket_type, strlen (socket_type));
+
+    //  Add identity property
+    if (options.type == ZMQ_REQ
+    ||  options.type == ZMQ_DEALER
+    ||  options.type == ZMQ_ROUTER)
+        ptr += add_property (ptr, "Identity", options.identity, options.identity_size);
+
+    const size_t command_size = ptr - command_buffer;
+    const int rc = msg_->init_size (command_size);
+    errno_assert (rc == 0);
+    memcpy (msg_->data (), command_buffer, command_size);
+    free (command_buffer);
+
+    ready_command_sent = true;
+
+    return 0;
+}
+
+int zmq::null_mechanism_t::process_handshake_command (msg_t *msg_)
+{
+    if (ready_command_received || error_command_received) {
+        //  Temporary support for security debugging
+        puts ("NULL I: client sent invalid NULL handshake (duplicate READY)");
+        errno = EPROTO;
+        return -1;
+    }
+
+    const unsigned char *cmd_data =
+        static_cast <unsigned char *> (msg_->data ());
+    const size_t data_size = msg_->size ();
+
+    int rc = 0;
+    if (data_size >= 6 && !memcmp (cmd_data, "\5READY", 6))
+        rc = process_ready_command (cmd_data, data_size);
+    else
+    if (data_size >= 6 && !memcmp (cmd_data, "\5ERROR", 6))
+        rc = process_error_command (cmd_data, data_size);
+    else {
+        //  Temporary support for security debugging
+        puts ("NULL I: client sent invalid NULL handshake (not READY)");
+        errno = EPROTO;
+        rc = -1;
+    }
+
+    if (rc == 0) {
+        int rc = msg_->close ();
+        errno_assert (rc == 0);
+        rc = msg_->init ();
+        errno_assert (rc == 0);
+    }
+    return rc;
+}
+
+int zmq::null_mechanism_t::process_ready_command (
+        const unsigned char *cmd_data, size_t data_size)
+{
+    ready_command_received = true;
+    return parse_metadata (cmd_data + 6, data_size - 6);
+}
+
+int zmq::null_mechanism_t::process_error_command (
+        const unsigned char *cmd_data, size_t data_size)
+{
+    if (data_size < 7) {
+        errno = EPROTO;
+        return -1;
+    }
+    const size_t error_reason_len = static_cast <size_t> (cmd_data [6]);
+    if (error_reason_len > data_size - 7) {
+        errno = EPROTO;
+        return -1;
+    }
+    error_command_received = true;
+    return 0;
+}
+
+int zmq::null_mechanism_t::zap_msg_available ()
+{
+    if (zap_reply_received) {
+        errno = EFSM;
+        return -1;
+    }
+    const int rc = receive_and_process_zap_reply ();
+    if (rc == 0)
+        zap_reply_received = true;
+    return rc;
+}
+
+zmq::mechanism_t::status_t zmq::null_mechanism_t::status () const
+{
+    const bool command_sent =
+        ready_command_sent || error_command_sent;
+    const bool command_received =
+        ready_command_received || error_command_received;
+
+    if (ready_command_sent && ready_command_received)
+        return ready;
+    else
+    if (command_sent && command_received)
+        return error;
+    else
+        return handshaking;
+}
+
+void zmq::null_mechanism_t::send_zap_request ()
+{
+    int rc;
+    msg_t msg;
+
+    //  Address delimiter frame
+    rc = msg.init ();
+    errno_assert (rc == 0);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Version frame
+    rc = msg.init_size (3);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), "1.0", 3);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Request id frame
+    rc = msg.init_size (1);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), "1", 1);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Domain frame
+    rc = msg.init_size (options.zap_domain.length ());
+    errno_assert (rc == 0);
+    memcpy (msg.data (), options.zap_domain.c_str (), options.zap_domain.length ());
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Address frame
+    rc = msg.init_size (peer_address.length ());
+    errno_assert (rc == 0);
+    memcpy (msg.data (), peer_address.c_str (), peer_address.length ());
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Identity frame
+    rc = msg.init_size (options.identity_size);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), options.identity, options.identity_size);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Mechanism frame
+    rc = msg.init_size (4);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), "NULL", 4);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+}
+
+int zmq::null_mechanism_t::receive_and_process_zap_reply ()
+{
+    int rc = 0;
+    msg_t msg [7];  //  ZAP reply consists of 7 frames
+
+    //  Initialize all reply frames
+    for (int i = 0; i < 7; i++) {
+        rc = msg [i].init ();
+        errno_assert (rc == 0);
+    }
+
+    for (int i = 0; i < 7; i++) {
+        rc = session->read_zap_msg (&msg [i]);
+        if (rc == -1)
+            break;
+        if ((msg [i].flags () & msg_t::more) == (i < 6? 0: msg_t::more)) {
+            //  Temporary support for security debugging
+            puts ("NULL I: ZAP handler sent incomplete reply message");
+            errno = EPROTO;
+            rc = -1;
+            break;
+        }
+    }
+
+    if (rc != 0)
+        goto error;
+
+    //  Address delimiter frame
+    if (msg [0].size () > 0) {
+        //  Temporary support for security debugging
+        puts ("NULL I: ZAP handler sent malformed reply message");
+        errno = EPROTO;
+        rc = -1;
+        goto error;
+    }
+
+    //  Version frame
+    if (msg [1].size () != 3 || memcmp (msg [1].data (), "1.0", 3)) {
+        //  Temporary support for security debugging
+        puts ("NULL I: ZAP handler sent bad version number");
+        errno = EPROTO;
+        rc = -1;
+        goto error;
+    }
+
+    //  Request id frame
+    if (msg [2].size () != 1 || memcmp (msg [2].data (), "1", 1)) {
+        //  Temporary support for security debugging
+        puts ("NULL I: ZAP handler sent bad request ID");
+        errno = EPROTO;
+        rc = -1;
+        goto error;
+    }
+
+    //  Status code frame
+    if (msg [3].size () != 3) {
+        //  Temporary support for security debugging
+        puts ("NULL I: ZAP handler rejected client authentication");
+        errno = EPROTO;
+        rc = -1;
+        goto error;
+    }
+
+    //  Save status code
+    memcpy (status_code, msg [3].data (), sizeof status_code);
+
+    //  Save user id
+    set_user_id (msg [5].data (), msg [5].size ());
+
+    //  Process metadata frame
+    rc = parse_metadata (static_cast <const unsigned char*> (msg [6].data ()),
+                         msg [6].size (), true);
+
+error:
+    for (int i = 0; i < 7; i++) {
+        const int rc2 = msg [i].close ();
+        errno_assert (rc2 == 0);
+    }
+
+    return rc;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/null_mechanism.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/null_mechanism.hpp
new file mode 100644
index 00000000..ff1eb96d
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/null_mechanism.hpp
@@ -0,0 +1,84 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_NULL_MECHANISM_HPP_INCLUDED__
+#define __ZMQ_NULL_MECHANISM_HPP_INCLUDED__
+
+#include "mechanism.hpp"
+#include "options.hpp"
+
+namespace zmq
+{
+
+    class msg_t;
+    class session_base_t;
+
+    class null_mechanism_t : public mechanism_t
+    {
+    public:
+
+        null_mechanism_t (session_base_t *session_,
+                          const std::string &peer_address,
+                          const options_t &options_);
+        virtual ~null_mechanism_t ();
+
+        // mechanism implementation
+        virtual int next_handshake_command (msg_t *msg_);
+        virtual int process_handshake_command (msg_t *msg_);
+        virtual int zap_msg_available ();
+        virtual status_t status () const;
+
+    private:
+
+        session_base_t * const session;
+
+        char status_code [3];
+
+        const std::string peer_address;
+
+        bool ready_command_sent;
+        bool error_command_sent;
+        bool ready_command_received;
+        bool error_command_received;
+        bool zap_connected;
+        bool zap_request_sent;
+        bool zap_reply_received;
+
+        int process_ready_command (
+            const unsigned char *cmd_data, size_t data_size);
+        int process_error_command (
+            const unsigned char *cmd_data, size_t data_size);
+
+        void send_zap_request ();
+        int receive_and_process_zap_reply ();
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/object.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/object.cpp
new file mode 100644
index 00000000..ea4f7d56
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/object.cpp
@@ -0,0 +1,437 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <string.h>
+#include <stdarg.h>
+
+#include "object.hpp"
+#include "ctx.hpp"
+#include "err.hpp"
+#include "pipe.hpp"
+#include "io_thread.hpp"
+#include "session_base.hpp"
+#include "socket_base.hpp"
+
+zmq::object_t::object_t (ctx_t *ctx_, uint32_t tid_) :
+    ctx (ctx_),
+    tid (tid_)
+{
+}
+
+zmq::object_t::object_t (object_t *parent_) :
+    ctx (parent_->ctx),
+    tid (parent_->tid)
+{
+}
+
+zmq::object_t::~object_t ()
+{
+}
+
+uint32_t zmq::object_t::get_tid ()
+{
+    return tid;
+}
+
+void zmq::object_t::set_tid(uint32_t id)
+{
+    tid = id;
+}
+
+zmq::ctx_t *zmq::object_t::get_ctx ()
+{
+    return ctx;
+}
+
+void zmq::object_t::process_command (command_t &cmd_)
+{
+    switch (cmd_.type) {
+
+    case command_t::activate_read:
+        process_activate_read ();
+        break;
+
+    case command_t::activate_write:
+        process_activate_write (cmd_.args.activate_write.msgs_read);
+        break;
+
+    case command_t::stop:
+        process_stop ();
+        break;
+
+    case command_t::plug:
+        process_plug ();
+        process_seqnum ();
+        break;
+
+    case command_t::own:
+        process_own (cmd_.args.own.object);
+        process_seqnum ();
+        break;
+
+    case command_t::attach:
+        process_attach (cmd_.args.attach.engine);
+        process_seqnum ();
+        break;
+
+    case command_t::bind:
+        process_bind (cmd_.args.bind.pipe);
+        process_seqnum ();
+        break;
+
+    case command_t::hiccup:
+        process_hiccup (cmd_.args.hiccup.pipe);
+        break;
+
+    case command_t::pipe_term:
+        process_pipe_term ();
+        break;
+
+    case command_t::pipe_term_ack:
+        process_pipe_term_ack ();
+        break;
+
+    case command_t::term_req:
+        process_term_req (cmd_.args.term_req.object);
+        break;
+
+    case command_t::term:
+        process_term (cmd_.args.term.linger);
+        break;
+
+    case command_t::term_ack:
+        process_term_ack ();
+        break;
+
+    case command_t::reap:
+        process_reap (cmd_.args.reap.socket);
+        break;
+
+    case command_t::reaped:
+        process_reaped ();
+        break;
+
+    case command_t::inproc_connected:
+        process_seqnum ();
+        break;
+
+    case command_t::done:
+    default:
+        zmq_assert (false);
+    }
+}
+
+int zmq::object_t::register_endpoint (const char *addr_,
+        const endpoint_t &endpoint_)
+{
+    return ctx->register_endpoint (addr_, endpoint_);
+}
+
+int zmq::object_t::unregister_endpoint (
+        const std::string &addr_, socket_base_t *socket_)
+{
+    return ctx->unregister_endpoint (addr_, socket_);
+}
+
+void zmq::object_t::unregister_endpoints (socket_base_t *socket_)
+{
+    return ctx->unregister_endpoints (socket_);
+}
+
+zmq::endpoint_t zmq::object_t::find_endpoint (const char *addr_)
+{
+    return ctx->find_endpoint (addr_);
+}
+
+void zmq::object_t::pend_connection (const std::string &addr_,
+        const endpoint_t &endpoint_, pipe_t **pipes_)
+{
+    ctx->pend_connection (addr_, endpoint_, pipes_);
+}
+
+void zmq::object_t::connect_pending (const char *addr_, zmq::socket_base_t *bind_socket_)
+{
+    return ctx->connect_pending(addr_, bind_socket_);
+}
+
+void zmq::object_t::destroy_socket (socket_base_t *socket_)
+{
+    ctx->destroy_socket (socket_);
+}
+
+zmq::io_thread_t *zmq::object_t::choose_io_thread (uint64_t affinity_)
+{
+    return ctx->choose_io_thread (affinity_);
+}
+
+void zmq::object_t::send_stop ()
+{
+    //  'stop' command goes always from administrative thread to
+    //  the current object.
+    command_t cmd;
+    cmd.destination = this;
+    cmd.type = command_t::stop;
+    ctx->send_command (tid, cmd);
+}
+
+void zmq::object_t::send_plug (own_t *destination_, bool inc_seqnum_)
+{
+    if (inc_seqnum_)
+        destination_->inc_seqnum ();
+
+    command_t cmd;
+    cmd.destination = destination_;
+    cmd.type = command_t::plug;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_own (own_t *destination_, own_t *object_)
+{
+    destination_->inc_seqnum ();
+    command_t cmd;
+    cmd.destination = destination_;
+    cmd.type = command_t::own;
+    cmd.args.own.object = object_;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_attach (session_base_t *destination_,
+    i_engine *engine_, bool inc_seqnum_)
+{
+    if (inc_seqnum_)
+        destination_->inc_seqnum ();
+
+    command_t cmd;
+    cmd.destination = destination_;
+    cmd.type = command_t::attach;
+    cmd.args.attach.engine = engine_;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_bind (own_t *destination_, pipe_t *pipe_,
+    bool inc_seqnum_)
+{
+    if (inc_seqnum_)
+        destination_->inc_seqnum ();
+
+    command_t cmd;
+    cmd.destination = destination_;
+    cmd.type = command_t::bind;
+    cmd.args.bind.pipe = pipe_;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_activate_read (pipe_t *destination_)
+{
+    command_t cmd;
+    cmd.destination = destination_;
+    cmd.type = command_t::activate_read;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_activate_write (pipe_t *destination_,
+    uint64_t msgs_read_)
+{
+    command_t cmd;
+    cmd.destination = destination_;
+    cmd.type = command_t::activate_write;
+    cmd.args.activate_write.msgs_read = msgs_read_;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_hiccup (pipe_t *destination_, void *pipe_)
+{
+    command_t cmd;
+    cmd.destination = destination_;
+    cmd.type = command_t::hiccup;
+    cmd.args.hiccup.pipe = pipe_;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_pipe_term (pipe_t *destination_)
+{
+    command_t cmd;
+    cmd.destination = destination_;
+    cmd.type = command_t::pipe_term;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_pipe_term_ack (pipe_t *destination_)
+{
+    command_t cmd;
+    cmd.destination = destination_;
+    cmd.type = command_t::pipe_term_ack;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_term_req (own_t *destination_,
+    own_t *object_)
+{
+    command_t cmd;
+    cmd.destination = destination_;
+    cmd.type = command_t::term_req;
+    cmd.args.term_req.object = object_;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_term (own_t *destination_, int linger_)
+{
+    command_t cmd;
+    cmd.destination = destination_;
+    cmd.type = command_t::term;
+    cmd.args.term.linger = linger_;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_term_ack (own_t *destination_)
+{
+    command_t cmd;
+    cmd.destination = destination_;
+    cmd.type = command_t::term_ack;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_reap (class socket_base_t *socket_)
+{
+    command_t cmd;
+    cmd.destination = ctx->get_reaper ();
+    cmd.type = command_t::reap;
+    cmd.args.reap.socket = socket_;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_reaped ()
+{
+    command_t cmd;
+    cmd.destination = ctx->get_reaper ();
+    cmd.type = command_t::reaped;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_inproc_connected (zmq::socket_base_t *socket_)
+{
+    command_t cmd;
+    cmd.destination = socket_;
+    cmd.type = command_t::inproc_connected;
+    send_command (cmd);
+}
+
+void zmq::object_t::send_done ()
+{
+    command_t cmd;
+    cmd.destination = NULL;
+    cmd.type = command_t::done;
+    ctx->send_command (ctx_t::term_tid, cmd);
+}
+
+void zmq::object_t::process_stop ()
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_plug ()
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_own (own_t *)
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_attach (i_engine *)
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_bind (pipe_t *)
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_activate_read ()
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_activate_write (uint64_t)
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_hiccup (void *)
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_pipe_term ()
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_pipe_term_ack ()
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_term_req (own_t *)
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_term (int)
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_term_ack ()
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_reap (class socket_base_t *)
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_reaped ()
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::process_seqnum ()
+{
+    zmq_assert (false);
+}
+
+void zmq::object_t::send_command (command_t &cmd_)
+{
+    ctx->send_command (cmd_.destination->get_tid (), cmd_);
+}
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/object.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/object.hpp
new file mode 100644
index 00000000..73e5a9e2
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/object.hpp
@@ -0,0 +1,152 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_OBJECT_HPP_INCLUDED__
+#define __ZMQ_OBJECT_HPP_INCLUDED__
+
+#include <string>
+#include "stdint.hpp"
+
+namespace zmq
+{
+
+    struct i_engine;
+    struct endpoint_t;
+    struct pending_connection_t;
+    struct command_t;
+    class ctx_t;
+    class pipe_t;
+    class socket_base_t;
+    class session_base_t;
+    class io_thread_t;
+    class own_t;
+
+    //  Base class for all objects that participate in inter-thread
+    //  communication.
+
+    class object_t
+    {
+    public:
+
+        object_t (zmq::ctx_t *ctx_, uint32_t tid_);
+        object_t (object_t *parent_);
+        virtual ~object_t ();
+
+        uint32_t get_tid ();
+        void set_tid(uint32_t id);
+        ctx_t *get_ctx ();
+        void process_command (zmq::command_t &cmd_);
+        void send_inproc_connected (zmq::socket_base_t *socket_);
+        void send_bind (zmq::own_t *destination_, zmq::pipe_t *pipe_, bool inc_seqnum_ = true);
+
+    protected:
+
+        //  Using following function, socket is able to access global
+        //  repository of inproc endpoints.
+        int register_endpoint (const char *addr_,
+                const zmq::endpoint_t &endpoint_);
+        int unregister_endpoint (
+                const std::string &addr_, socket_base_t *socket_);
+        void unregister_endpoints (zmq::socket_base_t *socket_);
+        zmq::endpoint_t find_endpoint (const char *addr_);
+        void pend_connection (const std::string &addr_,
+                const endpoint_t &endpoint, pipe_t **pipes_);
+        void connect_pending (const char *addr_, zmq::socket_base_t *bind_socket_);
+
+        void destroy_socket (zmq::socket_base_t *socket_);
+
+        //  Logs an message.
+        void log (const char *format_, ...);
+
+        //  Chooses least loaded I/O thread.
+        zmq::io_thread_t *choose_io_thread (uint64_t affinity_);
+
+        //  Derived object can use these functions to send commands
+        //  to other objects.
+        void send_stop ();
+        void send_plug (zmq::own_t *destination_,
+            bool inc_seqnum_ = true);
+        void send_own (zmq::own_t *destination_,
+            zmq::own_t *object_);
+        void send_attach (zmq::session_base_t *destination_,
+             zmq::i_engine *engine_, bool inc_seqnum_ = true);
+        void send_activate_read (zmq::pipe_t *destination_);
+        void send_activate_write (zmq::pipe_t *destination_,
+             uint64_t msgs_read_);
+        void send_hiccup (zmq::pipe_t *destination_, void *pipe_);
+        void send_pipe_term (zmq::pipe_t *destination_);
+        void send_pipe_term_ack (zmq::pipe_t *destination_);
+        void send_term_req (zmq::own_t *destination_,
+            zmq::own_t *object_);
+        void send_term (zmq::own_t *destination_, int linger_);
+        void send_term_ack (zmq::own_t *destination_);
+        void send_reap (zmq::socket_base_t *socket_);
+        void send_reaped ();
+        void send_done ();
+
+        //  These handlers can be overrided by the derived objects. They are
+        //  called when command arrives from another thread.
+        virtual void process_stop ();
+        virtual void process_plug ();
+        virtual void process_own (zmq::own_t *object_);
+        virtual void process_attach (zmq::i_engine *engine_);
+        virtual void process_bind (zmq::pipe_t *pipe_);
+        virtual void process_activate_read ();
+        virtual void process_activate_write (uint64_t msgs_read_);
+        virtual void process_hiccup (void *pipe_);
+        virtual void process_pipe_term ();
+        virtual void process_pipe_term_ack ();
+        virtual void process_term_req (zmq::own_t *object_);
+        virtual void process_term (int linger_);
+        virtual void process_term_ack ();
+        virtual void process_reap (zmq::socket_base_t *socket_);
+        virtual void process_reaped ();
+
+        //  Special handler called after a command that requires a seqnum
+        //  was processed. The implementation should catch up with its counter
+        //  of processed commands here.
+        virtual void process_seqnum ();
+
+    private:
+
+        //  Context provides access to the global state.
+        zmq::ctx_t *ctx;
+
+        //  Thread ID of the thread the object belongs to.
+        uint32_t tid;
+
+        void send_command (command_t &cmd_);
+
+        object_t (const object_t&);
+        const object_t &operator = (const object_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/options.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/options.cpp
new file mode 100644
index 00000000..ea4f74c9
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/options.cpp
@@ -0,0 +1,864 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <string.h>
+
+#include "options.hpp"
+#include "err.hpp"
+#include "../include/zmq_utils.h"
+
+zmq::options_t::options_t () :
+    sndhwm (1000),
+    rcvhwm (1000),
+    affinity (0),
+    identity_size (0),
+    rate (100),
+    recovery_ivl (10000),
+    multicast_hops (1),
+    sndbuf (0),
+    rcvbuf (0),
+    tos (0),
+    type (-1),
+    linger (-1),
+    reconnect_ivl (100),
+    reconnect_ivl_max (0),
+    backlog (100),
+    maxmsgsize (-1),
+    rcvtimeo (-1),
+    sndtimeo (-1),
+    ipv6 (0),
+    immediate (0),
+    filter (false),
+    recv_identity (false),
+    raw_sock (false),
+    tcp_keepalive (-1),
+    tcp_keepalive_cnt (-1),
+    tcp_keepalive_idle (-1),
+    tcp_keepalive_intvl (-1),
+    mechanism (ZMQ_NULL),
+    as_server (0),
+    gss_plaintext (false),
+    socket_id (0),
+    conflate (false),
+    handshake_ivl (30000)
+{
+}
+
+int zmq::options_t::setsockopt (int option_, const void *optval_,
+    size_t optvallen_)
+{
+    bool is_int = (optvallen_ == sizeof (int));
+    int value = is_int? *((int *) optval_): 0;
+#if defined (ZMQ_ACT_MILITANT)
+    bool malformed = true;          //  Did caller pass a bad option value?
+#endif
+
+    switch (option_) {
+        case ZMQ_SNDHWM:
+            if (is_int && value >= 0) {
+                sndhwm = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_RCVHWM:
+            if (is_int && value >= 0) {
+                rcvhwm = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_AFFINITY:
+            if (optvallen_ == sizeof (uint64_t)) {
+                affinity = *((uint64_t*) optval_);
+                return 0;
+            }
+            break;
+
+        case ZMQ_IDENTITY:
+            //  Identity is any binary string from 1 to 255 octets
+            if (optvallen_ > 0 && optvallen_ < 256) {
+                identity_size = optvallen_;
+                memcpy (identity, optval_, identity_size);
+                return 0;
+            }
+            break;
+
+        case ZMQ_RATE:
+            if (is_int && value > 0) {
+                rate = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_RECOVERY_IVL:
+            if (is_int && value >= 0) {
+                recovery_ivl = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_SNDBUF:
+            if (is_int && value >= 0) {
+                sndbuf = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_RCVBUF:
+            if (is_int && value >= 0) {
+                rcvbuf = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_TOS:
+            if (is_int && value >= 0) {
+                tos = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_LINGER:
+            if (is_int && value >= -1) {
+                linger = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_RECONNECT_IVL:
+            if (is_int && value >= -1) {
+                reconnect_ivl = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_RECONNECT_IVL_MAX:
+            if (is_int && value >= 0) {
+                reconnect_ivl_max = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_BACKLOG:
+            if (is_int && value >= 0) {
+                backlog = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_MAXMSGSIZE:
+            if (optvallen_ == sizeof (int64_t)) {
+                maxmsgsize = *((int64_t *) optval_);
+                return 0;
+            }
+            break;
+
+        case ZMQ_MULTICAST_HOPS:
+            if (is_int && value > 0) {
+                multicast_hops = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_RCVTIMEO:
+            if (is_int && value >= -1) {
+                rcvtimeo = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_SNDTIMEO:
+            if (is_int && value >= -1) {
+                sndtimeo = value;
+                return 0;
+            }
+            break;
+
+        /*  Deprecated in favor of ZMQ_IPV6  */
+        case ZMQ_IPV4ONLY:
+            if (is_int && (value == 0 || value == 1)) {
+                ipv6 = (value == 0);
+                return 0;
+            }
+            break;
+
+        /*  To replace the somewhat surprising IPV4ONLY */
+        case ZMQ_IPV6:
+            if (is_int && (value == 0 || value == 1)) {
+                ipv6 = (value != 0);
+                return 0;
+            }
+            break;
+
+        case ZMQ_SOCKS_PROXY:
+            if (optval_ == NULL && optvallen_ == 0) {
+                socks_proxy_address.clear ();
+                return 0;
+            }
+            else
+            if (optval_ != NULL && optvallen_ > 0 ) {
+                socks_proxy_address =
+                    std::string ((const char *) optval_, optvallen_);
+                return 0;
+            }
+            break;
+
+        case ZMQ_TCP_KEEPALIVE:
+            if (is_int && (value == -1 || value == 0 || value == 1)) {
+                tcp_keepalive = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_TCP_KEEPALIVE_CNT:
+            if (is_int && (value == -1 || value >= 0)) {
+                tcp_keepalive_cnt = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_TCP_KEEPALIVE_IDLE:
+            if (is_int && (value == -1 || value >= 0)) {
+                tcp_keepalive_idle = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_TCP_KEEPALIVE_INTVL:
+            if (is_int && (value == -1 || value >= 0)) {
+                tcp_keepalive_intvl = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_IMMEDIATE:
+            if (is_int && (value == 0 || value == 1)) {
+                immediate = value;
+                return 0;
+            }
+            break;
+
+        case ZMQ_TCP_ACCEPT_FILTER:
+            if (optvallen_ == 0 && optval_ == NULL) {
+                tcp_accept_filters.clear ();
+                return 0;
+            }
+            else
+            if (optvallen_ > 0 && optvallen_ < 256 && optval_ != NULL && *((const char*) optval_) != 0) {
+                std::string filter_str ((const char *) optval_, optvallen_);
+                tcp_address_mask_t mask;
+                int rc = mask.resolve (filter_str.c_str (), ipv6);
+                if (rc == 0) {
+                    tcp_accept_filters.push_back (mask);
+                    return 0;
+                }
+            }
+            break;
+
+#       if defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED
+        case ZMQ_IPC_FILTER_UID:
+            if (optvallen_ == 0 && optval_ == NULL) {
+                ipc_uid_accept_filters.clear ();
+                return 0;
+            }
+            else
+            if (optvallen_ == sizeof (uid_t) && optval_ != NULL) {
+                ipc_uid_accept_filters.insert (*((uid_t *) optval_));
+                return 0;
+            }
+            break;
+
+        case ZMQ_IPC_FILTER_GID:
+            if (optvallen_ == 0 && optval_ == NULL) {
+                ipc_gid_accept_filters.clear ();
+                return 0;
+            }
+            else
+            if (optvallen_ == sizeof (gid_t) && optval_ != NULL) {
+                ipc_gid_accept_filters.insert (*((gid_t *) optval_));
+                return 0;
+            }
+            break;
+#       endif
+
+#       if defined ZMQ_HAVE_SO_PEERCRED
+        case ZMQ_IPC_FILTER_PID:
+            if (optvallen_ == 0 && optval_ == NULL) {
+                ipc_pid_accept_filters.clear ();
+                return 0;
+            }
+            else
+            if (optvallen_ == sizeof (pid_t) && optval_ != NULL) {
+                ipc_pid_accept_filters.insert (*((pid_t *) optval_));
+                return 0;
+            }
+            break;
+#       endif
+
+        case ZMQ_PLAIN_SERVER:
+            if (is_int && (value == 0 || value == 1)) {
+                as_server = value;
+                mechanism = value? ZMQ_PLAIN: ZMQ_NULL;
+                return 0;
+            }
+            break;
+
+        case ZMQ_PLAIN_USERNAME:
+            if (optvallen_ == 0 && optval_ == NULL) {
+                mechanism = ZMQ_NULL;
+                return 0;
+            }
+            else
+            if (optvallen_ > 0 && optvallen_ < 256 && optval_ != NULL) {
+                plain_username.assign ((const char *) optval_, optvallen_);
+                as_server = 0;
+                mechanism = ZMQ_PLAIN;
+                return 0;
+            }
+            break;
+
+        case ZMQ_PLAIN_PASSWORD:
+            if (optvallen_ == 0 && optval_ == NULL) {
+                mechanism = ZMQ_NULL;
+                return 0;
+            }
+            else
+            if (optvallen_ > 0 && optvallen_ < 256 && optval_ != NULL) {
+                plain_password.assign ((const char *) optval_, optvallen_);
+                as_server = 0;
+                mechanism = ZMQ_PLAIN;
+                return 0;
+            }
+            break;
+
+        case ZMQ_ZAP_DOMAIN:
+            if (optvallen_ < 256) {
+                zap_domain.assign ((const char *) optval_, optvallen_);
+                return 0;
+            }
+            break;
+
+        //  If libsodium isn't installed, these options provoke EINVAL
+#       ifdef HAVE_LIBSODIUM
+        case ZMQ_CURVE_SERVER:
+            if (is_int && (value == 0 || value == 1)) {
+                as_server = value;
+                mechanism = value? ZMQ_CURVE: ZMQ_NULL;
+                return 0;
+            }
+            break;
+
+        case ZMQ_CURVE_PUBLICKEY:
+            //  TODO: refactor repeated code for these three options
+            //  into set_curve_key (destination, optval, optlen) method
+            //  ==> set_curve_key (curve_public_key, optval_, optvallen_);
+            if (optvallen_ == CURVE_KEYSIZE) {
+                memcpy (curve_public_key, optval_, CURVE_KEYSIZE);
+                mechanism = ZMQ_CURVE;
+                return 0;
+            }
+            else
+            if (optvallen_ == CURVE_KEYSIZE_Z85 + 1) {
+                zmq_z85_decode (curve_public_key, (char *) optval_);
+                mechanism = ZMQ_CURVE;
+                return 0;
+            }
+            else
+            //  Deprecated, not symmetrical with zmq_getsockopt
+            if (optvallen_ == CURVE_KEYSIZE_Z85) {
+                char z85_key [41];
+                memcpy (z85_key, (char *) optval_, CURVE_KEYSIZE_Z85);
+                z85_key [CURVE_KEYSIZE_Z85] = 0;
+                zmq_z85_decode (curve_public_key, z85_key);
+                mechanism = ZMQ_CURVE;
+                return 0;
+            }
+            break;
+
+        case ZMQ_CURVE_SECRETKEY:
+            if (optvallen_ == CURVE_KEYSIZE) {
+                memcpy (curve_secret_key, optval_, CURVE_KEYSIZE);
+                mechanism = ZMQ_CURVE;
+                return 0;
+            }
+            else
+            if (optvallen_ == CURVE_KEYSIZE_Z85 + 1) {
+                zmq_z85_decode (curve_secret_key, (char *) optval_);
+                mechanism = ZMQ_CURVE;
+                return 0;
+            }
+            else
+            //  Deprecated, not symmetrical with zmq_getsockopt
+            if (optvallen_ == CURVE_KEYSIZE_Z85) {
+                char z85_key [41];
+                memcpy (z85_key, (char *) optval_, CURVE_KEYSIZE_Z85);
+                z85_key [CURVE_KEYSIZE_Z85] = 0;
+                zmq_z85_decode (curve_secret_key, z85_key);
+                mechanism = ZMQ_CURVE;
+                return 0;
+            }
+            break;
+
+        case ZMQ_CURVE_SERVERKEY:
+            if (optvallen_ == CURVE_KEYSIZE) {
+                memcpy (curve_server_key, optval_, CURVE_KEYSIZE);
+                mechanism = ZMQ_CURVE;
+                as_server = 0;
+                return 0;
+            }
+            else
+            if (optvallen_ == CURVE_KEYSIZE_Z85 + 1) {
+                zmq_z85_decode (curve_server_key, (char *) optval_);
+                mechanism = ZMQ_CURVE;
+                as_server = 0;
+                return 0;
+            }
+            else
+            //  Deprecated, not symmetrical with zmq_getsockopt
+            if (optvallen_ == CURVE_KEYSIZE_Z85) {
+                char z85_key [41];
+                memcpy (z85_key, (char *) optval_, CURVE_KEYSIZE_Z85);
+                z85_key [CURVE_KEYSIZE_Z85] = 0;
+                zmq_z85_decode (curve_server_key, z85_key);
+                mechanism = ZMQ_CURVE;
+                as_server = 0;
+                return 0;
+            }
+            break;
+#       endif
+
+        case ZMQ_CONFLATE:
+            if (is_int && (value == 0 || value == 1)) {
+                conflate = (value != 0);
+                return 0;
+            }
+            break;
+
+        //  If libgssapi isn't installed, these options provoke EINVAL
+#       ifdef HAVE_LIBGSSAPI_KRB5
+        case ZMQ_GSSAPI_SERVER:
+            if (is_int && (value == 0 || value == 1)) {
+                as_server = value;
+                mechanism = ZMQ_GSSAPI;
+                return 0;
+            }
+            break;
+
+        case ZMQ_GSSAPI_PRINCIPAL:
+            if (optvallen_ > 0 && optvallen_ < 256 && optval_ != NULL) {
+                gss_principal.assign ((const char *) optval_, optvallen_);
+                mechanism = ZMQ_GSSAPI;
+                return 0;
+            }
+            break;
+
+        case ZMQ_GSSAPI_SERVICE_PRINCIPAL:
+            if (optvallen_ > 0 && optvallen_ < 256 && optval_ != NULL) {
+                gss_service_principal.assign ((const char *) optval_, optvallen_);
+                mechanism = ZMQ_GSSAPI;
+                as_server = 0;
+                return 0;
+            }
+            break;
+
+        case ZMQ_GSSAPI_PLAINTEXT:
+            if (is_int && (value == 0 || value == 1)) {
+                gss_plaintext = (value != 0);
+                return 0;
+            }
+            break;
+#       endif
+
+        case ZMQ_HANDSHAKE_IVL:
+            if (is_int && value >= 0) {
+                handshake_ivl = value;
+                return 0;
+            }
+            break;
+
+        default:
+#if defined (ZMQ_ACT_MILITANT)
+            //  There are valid scenarios for probing with unknown socket option
+            //  values, e.g. to check if security is enabled or not. This will not
+            //  provoke a militant assert. However, passing bad values to a valid
+            //  socket option will, if ZMQ_ACT_MILITANT is defined.
+            malformed = false;
+#endif
+            break;
+    }
+#if defined (ZMQ_ACT_MILITANT)
+    //  There is no valid use case for passing an error back to the application
+    //  when it sent malformed arguments to a socket option. Use ./configure
+    //  --with-militant to enable this checking.
+    if (malformed)
+        zmq_assert (false);
+#endif
+    errno = EINVAL;
+    return -1;
+}
+
+int zmq::options_t::getsockopt (int option_, void *optval_, size_t *optvallen_)
+{
+    bool is_int = (*optvallen_ == sizeof (int));
+    int *value = (int *) optval_;
+#if defined (ZMQ_ACT_MILITANT)
+    bool malformed = true;          //  Did caller pass a bad option value?
+#endif
+
+    switch (option_) {
+        case ZMQ_SNDHWM:
+            if (is_int) {
+                *value = sndhwm;
+                return 0;
+            }
+            break;
+
+        case ZMQ_RCVHWM:
+            if (is_int) {
+                *value = rcvhwm;
+                return 0;
+            }
+            break;
+
+        case ZMQ_AFFINITY:
+            if (*optvallen_ == sizeof (uint64_t)) {
+                *((uint64_t *) optval_) = affinity;
+                return 0;
+            }
+            break;
+
+        case ZMQ_IDENTITY:
+            if (*optvallen_ >= identity_size) {
+                memcpy (optval_, identity, identity_size);
+                *optvallen_ = identity_size;
+                return 0;
+            }
+            break;
+
+        case ZMQ_RATE:
+            if (is_int) {
+                *value = rate;
+                return 0;
+            }
+            break;
+
+        case ZMQ_RECOVERY_IVL:
+            if (is_int) {
+                *value = recovery_ivl;
+                return 0;
+            }
+            break;
+
+        case ZMQ_SNDBUF:
+            if (is_int) {
+                *value = sndbuf;
+                return 0;
+            }
+            break;
+
+        case ZMQ_RCVBUF:
+            if (is_int) {
+                *value = rcvbuf;
+                return 0;
+            }
+            break;
+
+        case ZMQ_TOS:
+            if (is_int) {
+                *value = tos;
+                return 0;
+            }
+            break;
+
+        case ZMQ_TYPE:
+            if (is_int) {
+                *value = type;
+                return 0;
+            }
+            break;
+
+        case ZMQ_LINGER:
+            if (is_int) {
+                *value = linger;
+                return 0;
+            }
+            break;
+
+        case ZMQ_RECONNECT_IVL:
+            if (is_int) {
+                *value = reconnect_ivl;
+                return 0;
+            }
+            break;
+
+        case ZMQ_RECONNECT_IVL_MAX:
+            if (is_int) {
+                *value = reconnect_ivl_max;
+                return 0;
+            }
+            break;
+
+        case ZMQ_BACKLOG:
+            if (is_int) {
+                *value = backlog;
+                return 0;
+            }
+            break;
+
+        case ZMQ_MAXMSGSIZE:
+            if (*optvallen_ == sizeof (int64_t)) {
+                *((int64_t *) optval_) = maxmsgsize;
+                *optvallen_ = sizeof (int64_t);
+                return 0;
+            }
+            break;
+
+        case ZMQ_MULTICAST_HOPS:
+            if (is_int) {
+                *value = multicast_hops;
+                return 0;
+            }
+            break;
+
+        case ZMQ_RCVTIMEO:
+            if (is_int) {
+                *value = rcvtimeo;
+                return 0;
+            }
+            break;
+
+        case ZMQ_SNDTIMEO:
+            if (is_int) {
+                *value = sndtimeo;
+                return 0;
+            }
+            break;
+
+        case ZMQ_IPV4ONLY:
+            if (is_int) {
+                *value = 1 - ipv6;
+                return 0;
+            }
+            break;
+
+        case ZMQ_IPV6:
+            if (is_int) {
+                *value = ipv6;
+                return 0;
+            }
+            break;
+
+        case ZMQ_IMMEDIATE:
+            if (is_int) {
+                *value = immediate;
+                return 0;
+            }
+            break;
+
+        case ZMQ_SOCKS_PROXY:
+            if (*optvallen_ >= socks_proxy_address.size () + 1) {
+                memcpy (optval_, socks_proxy_address.c_str (), socks_proxy_address.size () + 1);
+                *optvallen_ = socks_proxy_address.size () + 1;
+                return 0;
+            }
+            break;
+
+        case ZMQ_TCP_KEEPALIVE:
+            if (is_int) {
+                *value = tcp_keepalive;
+                return 0;
+            }
+            break;
+
+        case ZMQ_TCP_KEEPALIVE_CNT:
+            if (is_int) {
+                *value = tcp_keepalive_cnt;
+                return 0;
+            }
+            break;
+
+        case ZMQ_TCP_KEEPALIVE_IDLE:
+            if (is_int) {
+                *value = tcp_keepalive_idle;
+                return 0;
+            }
+            break;
+
+        case ZMQ_TCP_KEEPALIVE_INTVL:
+            if (is_int) {
+                *value = tcp_keepalive_intvl;
+                return 0;
+            }
+            break;
+
+        case ZMQ_MECHANISM:
+            if (is_int) {
+                *value = mechanism;
+                return 0;
+            }
+            break;
+
+        case ZMQ_PLAIN_SERVER:
+            if (is_int) {
+                *value = as_server && mechanism == ZMQ_PLAIN;
+                return 0;
+            }
+            break;
+
+        case ZMQ_PLAIN_USERNAME:
+            if (*optvallen_ >= plain_username.size () + 1) {
+                memcpy (optval_, plain_username.c_str (), plain_username.size () + 1);
+                *optvallen_ = plain_username.size () + 1;
+                return 0;
+            }
+            break;
+
+        case ZMQ_PLAIN_PASSWORD:
+            if (*optvallen_ >= plain_password.size () + 1) {
+                memcpy (optval_, plain_password.c_str (), plain_password.size () + 1);
+                *optvallen_ = plain_password.size () + 1;
+                return 0;
+            }
+            break;
+
+        case ZMQ_ZAP_DOMAIN:
+            if (*optvallen_ >= zap_domain.size () + 1) {
+                memcpy (optval_, zap_domain.c_str (), zap_domain.size () + 1);
+                *optvallen_ = zap_domain.size () + 1;
+                return 0;
+            }
+            break;
+
+        //  If libsodium isn't installed, these options provoke EINVAL
+#       ifdef HAVE_LIBSODIUM
+        case ZMQ_CURVE_SERVER:
+            if (is_int) {
+                *value = as_server && mechanism == ZMQ_CURVE;
+                return 0;
+            }
+            break;
+
+        case ZMQ_CURVE_PUBLICKEY:
+            if (*optvallen_ == CURVE_KEYSIZE) {
+                memcpy (optval_, curve_public_key, CURVE_KEYSIZE);
+                return 0;
+            }
+            else
+            if (*optvallen_ == CURVE_KEYSIZE_Z85 + 1) {
+                zmq_z85_encode ((char *) optval_, curve_public_key, CURVE_KEYSIZE);
+                return 0;
+            }
+            break;
+
+        case ZMQ_CURVE_SECRETKEY:
+            if (*optvallen_ == CURVE_KEYSIZE) {
+                memcpy (optval_, curve_secret_key, CURVE_KEYSIZE);
+                return 0;
+            }
+            else
+            if (*optvallen_ == CURVE_KEYSIZE_Z85 + 1) {
+                zmq_z85_encode ((char *) optval_, curve_secret_key, CURVE_KEYSIZE);
+                return 0;
+            }
+            break;
+
+        case ZMQ_CURVE_SERVERKEY:
+            if (*optvallen_ == CURVE_KEYSIZE) {
+                memcpy (optval_, curve_server_key, CURVE_KEYSIZE);
+                return 0;
+            }
+            else
+            if (*optvallen_ == CURVE_KEYSIZE_Z85 + 1) {
+                zmq_z85_encode ((char *) optval_, curve_server_key, CURVE_KEYSIZE);
+                return 0;
+            }
+            break;
+#       endif
+
+        case ZMQ_CONFLATE:
+            if (is_int) {
+                *value = conflate;
+                return 0;
+            }
+            break;
+
+        //  If libgssapi isn't installed, these options provoke EINVAL
+#       ifdef HAVE_LIBGSSAPI_KRB5
+        case ZMQ_GSSAPI_SERVER:
+            if (is_int) {
+                *value = as_server && mechanism == ZMQ_GSSAPI;
+                return 0;
+            }
+            break;
+
+        case ZMQ_GSSAPI_PRINCIPAL:
+            if (*optvallen_ >= gss_principal.size () + 1) {
+                memcpy (optval_, gss_principal.c_str (), gss_principal.size () + 1);
+                *optvallen_ = gss_principal.size () + 1;
+                return 0;
+            }
+            break;
+
+        case ZMQ_GSSAPI_SERVICE_PRINCIPAL:
+            if (*optvallen_ >= gss_service_principal.size () + 1) {
+                memcpy (optval_, gss_service_principal.c_str (), gss_service_principal.size () + 1);
+                *optvallen_ = gss_service_principal.size () + 1;
+                return 0;
+            }
+            break;
+
+        case ZMQ_GSSAPI_PLAINTEXT:
+            if (is_int) {
+                *value = gss_plaintext;
+                return 0;
+            }
+            break;
+#endif
+
+        case ZMQ_HANDSHAKE_IVL:
+            if (is_int) {
+                *value = handshake_ivl;
+                return 0;
+            }
+            break;
+
+        default:
+#if defined (ZMQ_ACT_MILITANT)
+            malformed = false;
+#endif
+            break;
+    }
+#if defined (ZMQ_ACT_MILITANT)
+    if (malformed)
+        zmq_assert (false);
+#endif
+    errno = EINVAL;
+    return -1;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/options.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/options.hpp
new file mode 100644
index 00000000..b4a019cd
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/options.hpp
@@ -0,0 +1,195 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_OPTIONS_HPP_INCLUDED__
+#define __ZMQ_OPTIONS_HPP_INCLUDED__
+
+#include <string>
+#include <vector>
+#include <set>
+
+#include "stddef.h"
+#include "stdint.hpp"
+#include "tcp_address.hpp"
+#include "../include/zmq.h"
+
+#if defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED
+#include <sys/types.h>
+#endif
+
+//  Normal base 256 key is 32 bytes
+#define CURVE_KEYSIZE       32
+//  Key encoded using Z85 is 40 bytes
+#define CURVE_KEYSIZE_Z85   40
+
+namespace zmq
+{
+    struct options_t
+    {
+        options_t ();
+
+        int setsockopt (int option_, const void *optval_, size_t optvallen_);
+        int getsockopt (int option_, void *optval_, size_t *optvallen_);
+
+        //  High-water marks for message pipes.
+        int sndhwm;
+        int rcvhwm;
+
+        //  I/O thread affinity.
+        uint64_t affinity;
+
+        //  Socket identity
+        unsigned char identity_size;
+        unsigned char identity [256];
+
+        //  Maximum transfer rate [kb/s]. Default 100kb/s.
+        int rate;
+
+        //  Reliability time interval [ms]. Default 10 seconds.
+        int recovery_ivl;
+
+        // Sets the time-to-live field in every multicast packet sent.
+        int multicast_hops;
+
+        // SO_SNDBUF and SO_RCVBUF to be passed to underlying transport sockets.
+        int sndbuf;
+        int rcvbuf;
+
+        // Type of service (containing DSCP and ECN socket options)
+        int tos;
+
+        //  Socket type.
+        int type;
+
+        //  Linger time, in milliseconds.
+        int linger;
+
+        //  Minimum interval between attempts to reconnect, in milliseconds.
+        //  Default 100ms
+        int reconnect_ivl;
+
+        //  Maximum interval between attempts to reconnect, in milliseconds.
+        //  Default 0 (unused)
+        int reconnect_ivl_max;
+
+        //  Maximum backlog for pending connections.
+        int backlog;
+
+        //  Maximal size of message to handle.
+        int64_t maxmsgsize;
+
+        // The timeout for send/recv operations for this socket.
+        int rcvtimeo;
+        int sndtimeo;
+
+        //  If true, IPv6 is enabled (as well as IPv4)
+        bool ipv6;
+
+        //  If 1, connecting pipes are not attached immediately, meaning a send()
+        //  on a socket with only connecting pipes would block
+        int immediate;
+
+        //  If 1, (X)SUB socket should filter the messages. If 0, it should not.
+        bool filter;
+
+        //  If true, the identity message is forwarded to the socket.
+        bool recv_identity;
+
+        // if true, router socket accepts non-zmq tcp connections
+        bool raw_sock;
+
+        //  Addres of SOCKS proxy
+        std::string socks_proxy_address;
+
+        //  TCP keep-alive settings.
+        //  Defaults to -1 = do not change socket options
+        int tcp_keepalive;
+        int tcp_keepalive_cnt;
+        int tcp_keepalive_idle;
+        int tcp_keepalive_intvl;
+
+        // TCP accept() filters
+        typedef std::vector <tcp_address_mask_t> tcp_accept_filters_t;
+        tcp_accept_filters_t tcp_accept_filters;
+
+        // IPC accept() filters
+#       if defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED
+        bool zap_ipc_creds;
+        typedef std::set <uid_t> ipc_uid_accept_filters_t;
+        ipc_uid_accept_filters_t ipc_uid_accept_filters;
+        typedef std::set <gid_t> ipc_gid_accept_filters_t;
+        ipc_gid_accept_filters_t ipc_gid_accept_filters;
+#       endif
+#       if defined ZMQ_HAVE_SO_PEERCRED
+        typedef std::set <pid_t> ipc_pid_accept_filters_t;
+        ipc_pid_accept_filters_t ipc_pid_accept_filters;
+#       endif
+
+        //  Security mechanism for all connections on this socket
+        int mechanism;
+
+        //  If peer is acting as server for PLAIN or CURVE mechanisms
+        int as_server;
+
+        //  ZAP authentication domain
+        std::string zap_domain;
+
+        //  Security credentials for PLAIN mechanism
+        std::string plain_username;
+        std::string plain_password;
+
+        //  Security credentials for CURVE mechanism
+        uint8_t curve_public_key [CURVE_KEYSIZE];
+        uint8_t curve_secret_key [CURVE_KEYSIZE];
+        uint8_t curve_server_key [CURVE_KEYSIZE];
+
+        //  Principals for GSSAPI mechanism
+        std::string gss_principal;
+        std::string gss_service_principal;
+
+        //  If true, gss encryption will be disabled
+        bool gss_plaintext;
+
+        //  ID of the socket.
+        int socket_id;
+
+        //  If true, socket conflates outgoing/incoming messages.
+        //  Applicable to dealer, push/pull, pub/sub socket types.
+        //  Cannot receive multi-part messages.
+        //  Ignores hwm
+        bool conflate;
+
+        //  If connection handshake is not done after this many milliseconds,
+        //  close socket.  Default is 30 secs.  0 means no handshake timeout.
+        int handshake_ivl;
+
+    };
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/own.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/own.cpp
new file mode 100644
index 00000000..8a4da3a7
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/own.cpp
@@ -0,0 +1,215 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "own.hpp"
+#include "err.hpp"
+#include "io_thread.hpp"
+
+zmq::own_t::own_t (class ctx_t *parent_, uint32_t tid_) :
+    object_t (parent_, tid_),
+    terminating (false),
+    sent_seqnum (0),
+    processed_seqnum (0),
+    owner (NULL),
+    term_acks (0)
+{
+}
+
+zmq::own_t::own_t (io_thread_t *io_thread_, const options_t &options_) :
+    object_t (io_thread_),
+    options (options_),
+    terminating (false),
+    sent_seqnum (0),
+    processed_seqnum (0),
+    owner (NULL),
+    term_acks (0)
+{
+}
+
+zmq::own_t::~own_t ()
+{
+}
+
+void zmq::own_t::set_owner (own_t *owner_)
+{
+    zmq_assert (!owner);
+    owner = owner_;
+}
+
+void zmq::own_t::inc_seqnum ()
+{
+    //  This function may be called from a different thread!
+    sent_seqnum.add (1);
+}
+
+void zmq::own_t::process_seqnum ()
+{
+    //  Catch up with counter of processed commands.
+    processed_seqnum++;
+
+    //  We may have catched up and still have pending terms acks.
+    check_term_acks ();
+}
+
+void zmq::own_t::launch_child (own_t *object_)
+{
+    //  Specify the owner of the object.
+    object_->set_owner (this);
+
+    //  Plug the object into the I/O thread.
+    send_plug (object_);
+
+    //  Take ownership of the object.
+    send_own (this, object_);
+}
+
+void zmq::own_t::term_child (own_t *object_)
+{
+    process_term_req (object_);
+}
+
+void zmq::own_t::process_term_req (own_t *object_)
+{
+    //  When shutting down we can ignore termination requests from owned
+    //  objects. The termination request was already sent to the object.
+    if (terminating)
+        return;
+
+    //  If I/O object is well and alive let's ask it to terminate.
+    owned_t::iterator it = std::find (owned.begin (), owned.end (), object_);
+
+    //  If not found, we assume that termination request was already sent to
+    //  the object so we can safely ignore the request.
+    if (it == owned.end ())
+        return;
+
+    owned.erase (it);
+    register_term_acks (1);
+
+    //  Note that this object is the root of the (partial shutdown) thus, its
+    //  value of linger is used, rather than the value stored by the children.
+    send_term (object_, options.linger);
+}
+
+void zmq::own_t::process_own (own_t *object_)
+{
+    //  If the object is already being shut down, new owned objects are
+    //  immediately asked to terminate. Note that linger is set to zero.
+    if (terminating) {
+        register_term_acks (1);
+        send_term (object_, 0);
+        return;
+    }
+
+    //  Store the reference to the owned object.
+    owned.insert (object_);
+}
+
+void zmq::own_t::terminate ()
+{
+    //  If termination is already underway, there's no point
+    //  in starting it anew.
+    if (terminating)
+        return;
+
+    //  As for the root of the ownership tree, there's noone to terminate it,
+    //  so it has to terminate itself.
+    if (!owner) {
+        process_term (options.linger);
+        return;
+    }
+
+    //  If I am an owned object, I'll ask my owner to terminate me.
+    send_term_req (owner, this);
+}
+
+bool zmq::own_t::is_terminating ()
+{
+    return terminating;
+}
+
+void zmq::own_t::process_term (int linger_)
+{
+    //  Double termination should never happen.
+    zmq_assert (!terminating);
+
+    //  Send termination request to all owned objects.
+    for (owned_t::iterator it = owned.begin (); it != owned.end (); ++it)
+        send_term (*it, linger_);
+    register_term_acks ((int) owned.size ());
+    owned.clear ();
+
+    //  Start termination process and check whether by chance we cannot
+    //  terminate immediately.
+    terminating = true;
+    check_term_acks ();
+}
+
+void zmq::own_t::register_term_acks (int count_)
+{
+    term_acks += count_;
+}
+
+void zmq::own_t::unregister_term_ack ()
+{
+    zmq_assert (term_acks > 0);
+    term_acks--;
+
+    //  This may be a last ack we are waiting for before termination...
+    check_term_acks ();
+}
+
+void zmq::own_t::process_term_ack ()
+{
+    unregister_term_ack ();
+}
+
+void zmq::own_t::check_term_acks ()
+{
+    if (terminating && processed_seqnum == sent_seqnum.get () &&
+          term_acks == 0) {
+
+        //  Sanity check. There should be no active children at this point.
+        zmq_assert (owned.empty ());
+
+        //  The root object has nobody to confirm the termination to.
+        //  Other nodes will confirm the termination to the owner.
+        if (owner)
+            send_term_ack (owner);
+
+        //  Deallocate the resources.
+        process_destroy ();
+    }
+}
+
+void zmq::own_t::process_destroy ()
+{
+    delete this;
+}
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/own.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/own.hpp
new file mode 100644
index 00000000..40be503f
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/own.hpp
@@ -0,0 +1,154 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_OWN_HPP_INCLUDED__
+#define __ZMQ_OWN_HPP_INCLUDED__
+
+#include <set>
+#include <algorithm>
+
+#include "object.hpp"
+#include "options.hpp"
+#include "atomic_counter.hpp"
+#include "stdint.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class io_thread_t;
+
+    //  Base class for objects forming a part of ownership hierarchy.
+    //  It handles initialisation and destruction of such objects.
+
+    class own_t : public object_t
+    {
+    public:
+
+        //  Note that the owner is unspecified in the constructor.
+        //  It'll be supplied later on when the object is plugged in.
+
+        //  The object is not living within an I/O thread. It has it's own
+        //  thread outside of 0MQ infrastructure.
+        own_t (zmq::ctx_t *parent_, uint32_t tid_);
+
+        //  The object is living within I/O thread.
+        own_t (zmq::io_thread_t *io_thread_, const options_t &options_);
+
+        //  When another owned object wants to send command to this object
+        //  it calls this function to let it know it should not shut down
+        //  before the command is delivered.
+        void inc_seqnum ();
+
+        //  Use following two functions to wait for arbitrary events before
+        //  terminating. Just add number of events to wait for using
+        //  register_tem_acks functions. When event occurs, call
+        //  remove_term_ack. When number of pending acks reaches zero
+        //  object will be deallocated.
+        void register_term_acks (int count_);
+        void unregister_term_ack ();
+
+    protected:
+
+        //  Launch the supplied object and become its owner.
+        void launch_child (own_t *object_);
+
+        //  Terminate owned object
+        void term_child (own_t *object_);
+
+        //  Ask owner object to terminate this object. It may take a while
+        //  while actual termination is started. This function should not be
+        //  called more than once.
+        void terminate ();
+
+        //  Returns true if the object is in process of termination.
+        bool is_terminating ();
+
+        //  Derived object destroys own_t. There's no point in allowing
+        //  others to invoke the destructor. At the same time, it has to be
+        //  virtual so that generic own_t deallocation mechanism destroys
+        //  specific type of the owned object correctly.
+        virtual ~own_t ();
+
+        //  Term handler is protocted rather than private so that it can
+        //  be intercepted by the derived class. This is useful to add custom
+        //  steps to the beginning of the termination process.
+        void process_term (int linger_);
+
+        //  A place to hook in when phyicallal destruction of the object
+        //  is to be delayed.
+        virtual void process_destroy ();
+
+        //  Socket options associated with this object.
+        options_t options;
+
+    private:
+
+        //  Set owner of the object
+        void set_owner (own_t *owner_);
+
+        //  Handlers for incoming commands.
+        void process_own (own_t *object_);
+        void process_term_req (own_t *object_);
+        void process_term_ack ();
+        void process_seqnum ();
+
+        //  Check whether all the peding term acks were delivered.
+        //  If so, deallocate this object.
+        void check_term_acks ();
+
+        //  True if termination was already initiated. If so, we can destroy
+        //  the object if there are no more child objects or pending term acks.
+        bool terminating;
+
+        //  Sequence number of the last command sent to this object.
+        atomic_counter_t sent_seqnum;
+
+        //  Sequence number of the last command processed by this object.
+        uint64_t processed_seqnum;
+
+        //  Socket owning this object. It's responsible for shutting down
+        //  this object.
+        own_t *owner;
+
+        //  List of all objects owned by this socket. We are responsible
+        //  for deallocating them before we quit.
+        typedef std::set <own_t*> owned_t;
+        owned_t owned;
+
+        //  Number of events we have to get before we can destroy the object.
+        int term_acks;
+
+        own_t (const own_t&);
+        const own_t &operator = (const own_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pair.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pair.cpp
new file mode 100644
index 00000000..ee2da2b2
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pair.cpp
@@ -0,0 +1,141 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "pair.hpp"
+#include "err.hpp"
+#include "pipe.hpp"
+#include "msg.hpp"
+
+zmq::pair_t::pair_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
+    socket_base_t (parent_, tid_, sid_),
+    pipe (NULL),
+    last_in (NULL)
+{
+    options.type = ZMQ_PAIR;
+}
+
+zmq::pair_t::~pair_t ()
+{
+    zmq_assert (!pipe);
+}
+
+void zmq::pair_t::xattach_pipe (pipe_t *pipe_, bool subscribe_to_all_)
+{
+    // subscribe_to_all_ is unused
+    (void)subscribe_to_all_;
+
+    zmq_assert (pipe_ != NULL);
+
+    //  ZMQ_PAIR socket can only be connected to a single peer.
+    //  The socket rejects any further connection requests.
+    if (pipe == NULL)
+        pipe = pipe_;
+    else
+        pipe_->terminate (false);
+}
+
+void zmq::pair_t::xpipe_terminated (pipe_t *pipe_)
+{
+    if (pipe_ == pipe) {
+        if (last_in == pipe) {
+            saved_credential = last_in->get_credential ();
+            last_in = NULL;
+        }
+        pipe = NULL;
+    }
+}
+
+void zmq::pair_t::xread_activated (pipe_t *)
+{
+    //  There's just one pipe. No lists of active and inactive pipes.
+    //  There's nothing to do here.
+}
+
+void zmq::pair_t::xwrite_activated (pipe_t *)
+{
+    //  There's just one pipe. No lists of active and inactive pipes.
+    //  There's nothing to do here.
+}
+
+int zmq::pair_t::xsend (msg_t *msg_)
+{
+    if (!pipe || !pipe->write (msg_)) {
+        errno = EAGAIN;
+        return -1;
+    }
+
+    if (!(msg_->flags () & msg_t::more))
+        pipe->flush ();
+
+    //  Detach the original message from the data buffer.
+    int rc = msg_->init ();
+    errno_assert (rc == 0);
+
+    return 0;
+}
+
+int zmq::pair_t::xrecv (msg_t *msg_)
+{
+    //  Deallocate old content of the message.
+    int rc = msg_->close ();
+    errno_assert (rc == 0);
+
+    if (!pipe || !pipe->read (msg_)) {
+
+        //  Initialise the output parameter to be a 0-byte message.
+        rc = msg_->init ();
+        errno_assert (rc == 0);
+
+        errno = EAGAIN;
+        return -1;
+    }
+    last_in = pipe;
+    return 0;
+}
+
+bool zmq::pair_t::xhas_in ()
+{
+    if (!pipe)
+        return false;
+
+    return pipe->check_read ();
+}
+
+bool zmq::pair_t::xhas_out ()
+{
+    if (!pipe)
+        return false;
+
+    return pipe->check_write ();
+}
+
+zmq::blob_t zmq::pair_t::get_credential () const
+{
+    return last_in? last_in->get_credential (): saved_credential;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pair.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pair.hpp
new file mode 100644
index 00000000..f7f74a39
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pair.hpp
@@ -0,0 +1,78 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_PAIR_HPP_INCLUDED__
+#define __ZMQ_PAIR_HPP_INCLUDED__
+
+#include "blob.hpp"
+#include "socket_base.hpp"
+#include "session_base.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class msg_t;
+    class pipe_t;
+    class io_thread_t;
+
+    class pair_t :
+        public socket_base_t
+    {
+    public:
+
+        pair_t (zmq::ctx_t *parent_, uint32_t tid_, int sid);
+        ~pair_t ();
+
+        //  Overrides of functions from socket_base_t.
+        void xattach_pipe (zmq::pipe_t *pipe_, bool subscribe_to_all_);
+        int xsend (zmq::msg_t *msg_);
+        int xrecv (zmq::msg_t *msg_);
+        bool xhas_in ();
+        bool xhas_out ();
+        blob_t get_credential () const;
+        void xread_activated (zmq::pipe_t *pipe_);
+        void xwrite_activated (zmq::pipe_t *pipe_);
+        void xpipe_terminated (zmq::pipe_t *pipe_);
+
+    private:
+
+        zmq::pipe_t *pipe;
+
+        zmq::pipe_t *last_in;
+
+        blob_t saved_credential;
+
+        pair_t (const pair_t&);
+        const pair_t &operator = (const pair_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_receiver.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_receiver.cpp
new file mode 100644
index 00000000..261ff3c0
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_receiver.cpp
@@ -0,0 +1,306 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_OPENPGM
+
+#include <new>
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include "pgm_receiver.hpp"
+#include "session_base.hpp"
+#include "v1_decoder.hpp"
+#include "stdint.hpp"
+#include "wire.hpp"
+#include "err.hpp"
+
+zmq::pgm_receiver_t::pgm_receiver_t (class io_thread_t *parent_,
+      const options_t &options_) :
+    io_object_t (parent_),
+    has_rx_timer (false),
+    pgm_socket (true, options_),
+    options (options_),
+    session (NULL),
+    active_tsi (NULL),
+    insize (0)
+{
+}
+
+zmq::pgm_receiver_t::~pgm_receiver_t ()
+{
+    //  Destructor should not be called before unplug.
+    zmq_assert (peers.empty ());
+}
+
+int zmq::pgm_receiver_t::init (bool udp_encapsulation_, const char *network_)
+{
+    return pgm_socket.init (udp_encapsulation_, network_);
+}
+
+void zmq::pgm_receiver_t::plug (io_thread_t *io_thread_,
+    session_base_t *session_)
+{
+    //  Retrieve PGM fds and start polling.
+    fd_t socket_fd = retired_fd;
+    fd_t waiting_pipe_fd = retired_fd;
+    pgm_socket.get_receiver_fds (&socket_fd, &waiting_pipe_fd);
+    socket_handle = add_fd (socket_fd);
+    pipe_handle = add_fd (waiting_pipe_fd);
+    set_pollin (pipe_handle);
+    set_pollin (socket_handle);
+
+    session = session_;
+
+    //  If there are any subscriptions already queued in the session, drop them.
+    drop_subscriptions ();
+}
+
+void zmq::pgm_receiver_t::unplug ()
+{
+    //  Delete decoders.
+    for (peers_t::iterator it = peers.begin (); it != peers.end (); ++it) {
+        if (it->second.decoder != NULL)
+            delete it->second.decoder;
+    }
+    peers.clear ();
+    active_tsi = NULL;
+
+    if (has_rx_timer) {
+        cancel_timer (rx_timer_id);
+        has_rx_timer = false;
+    }
+
+    rm_fd (socket_handle);
+    rm_fd (pipe_handle);
+
+    session = NULL;
+}
+
+void zmq::pgm_receiver_t::terminate ()
+{
+    unplug ();
+    delete this;
+}
+
+void zmq::pgm_receiver_t::restart_output ()
+{
+    drop_subscriptions ();
+}
+
+void zmq::pgm_receiver_t::restart_input ()
+{
+    zmq_assert (session != NULL);
+    zmq_assert (active_tsi != NULL);
+
+    const peers_t::iterator it = peers.find (*active_tsi);
+    zmq_assert (it != peers.end ());
+    zmq_assert (it->second.joined);
+
+    //  Push the pending message into the session.
+    int rc = session->push_msg (it->second.decoder->msg ());
+    errno_assert (rc == 0);
+
+    if (insize > 0) {
+        rc = process_input (it->second.decoder);
+        if (rc == -1) {
+            //  HWM reached; we will try later.
+            if (errno == EAGAIN) {
+                session->flush ();
+                return;
+            }
+            //  Data error. Delete message decoder, mark the
+            //  peer as not joined and drop remaining data.
+            it->second.joined = false;
+            delete it->second.decoder;
+            it->second.decoder = NULL;
+            insize = 0;
+        }
+    }
+
+    //  Resume polling.
+    set_pollin (pipe_handle);
+    set_pollin (socket_handle);
+
+    active_tsi = NULL;
+    in_event ();
+}
+
+void zmq::pgm_receiver_t::in_event ()
+{
+    // Read data from the underlying pgm_socket.
+    const pgm_tsi_t *tsi = NULL;
+
+    if (has_rx_timer) {
+        cancel_timer (rx_timer_id);
+        has_rx_timer = false;
+    }
+
+    //  TODO: This loop can effectively block other engines in the same I/O
+    //  thread in the case of high load.
+    while (true) {
+
+        //  Get new batch of data.
+        //  Note the workaround made not to break strict-aliasing rules.
+        void *tmp = NULL;
+        ssize_t received = pgm_socket.receive (&tmp, &tsi);
+        inpos = (unsigned char*) tmp;
+
+        //  No data to process. This may happen if the packet received is
+        //  neither ODATA nor ODATA.
+        if (received == 0) {
+            if (errno == ENOMEM || errno == EBUSY) {
+                const long timeout = pgm_socket.get_rx_timeout ();
+                add_timer (timeout, rx_timer_id);
+                has_rx_timer = true;
+            }
+            break;
+        }
+
+        //  Find the peer based on its TSI.
+        peers_t::iterator it = peers.find (*tsi);
+
+        //  Data loss. Delete decoder and mark the peer as disjoint.
+        if (received == -1) {
+            if (it != peers.end ()) {
+                it->second.joined = false;
+                if (it->second.decoder != NULL) {
+                    delete it->second.decoder;
+                    it->second.decoder = NULL;
+                }
+            }
+            break;
+        }
+
+        //  New peer. Add it to the list of know but unjoint peers.
+        if (it == peers.end ()) {
+            peer_info_t peer_info = {false, NULL};
+            it = peers.insert (peers_t::value_type (*tsi, peer_info)).first;
+        }
+
+        insize = static_cast <size_t> (received);
+
+        //  Read the offset of the fist message in the current packet.
+        zmq_assert (insize >= sizeof (uint16_t));
+        uint16_t offset = get_uint16 (inpos);
+        inpos += sizeof (uint16_t);
+        insize -= sizeof (uint16_t);
+
+        //  Join the stream if needed.
+        if (!it->second.joined) {
+
+            //  There is no beginning of the message in current packet.
+            //  Ignore the data.
+            if (offset == 0xffff)
+                continue;
+
+            zmq_assert (offset <= insize);
+            zmq_assert (it->second.decoder == NULL);
+
+            //  We have to move data to the begining of the first message.
+            inpos += offset;
+            insize -= offset;
+
+            //  Mark the stream as joined.
+            it->second.joined = true;
+
+            //  Create and connect decoder for the peer.
+            it->second.decoder = new (std::nothrow)
+                v1_decoder_t (0, options.maxmsgsize);
+            alloc_assert (it->second.decoder);
+        }
+
+        int rc = process_input (it->second.decoder);
+        if (rc == -1) {
+            if (errno == EAGAIN) {
+                active_tsi = tsi;
+
+                //  Stop polling.
+                reset_pollin (pipe_handle);
+                reset_pollin (socket_handle);
+
+                break;
+            }
+
+            it->second.joined = false;
+            delete it->second.decoder;
+            it->second.decoder = NULL;
+            insize = 0;
+        }
+    }
+
+    //  Flush any messages decoder may have produced.
+    session->flush ();
+}
+
+int zmq::pgm_receiver_t::process_input (v1_decoder_t *decoder)
+{
+    zmq_assert (session != NULL);
+
+    while (insize > 0) {
+        size_t n = 0;
+        int rc = decoder->decode (inpos, insize, n);
+        if (rc == -1)
+            return -1;
+        inpos += n;
+        insize -= n;
+        if (rc == 0)
+            break;
+        rc = session->push_msg (decoder->msg ());
+        if (rc == -1) {
+            errno_assert (errno == EAGAIN);
+            return -1;
+        }
+    }
+    return 0;
+}
+
+
+void zmq::pgm_receiver_t::timer_event (int token)
+{
+    zmq_assert (token == rx_timer_id);
+
+    //  Timer cancels on return by poller_base.
+    has_rx_timer = false;
+    in_event ();
+}
+
+void zmq::pgm_receiver_t::drop_subscriptions ()
+{
+    msg_t msg;
+    msg.init ();
+    while (session->pull_msg (&msg) == 0)
+        msg.close ();
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_receiver.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_receiver.hpp
new file mode 100644
index 00000000..4594ab46
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_receiver.hpp
@@ -0,0 +1,152 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_PGM_RECEIVER_HPP_INCLUDED__
+#define __ZMQ_PGM_RECEIVER_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_OPENPGM
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include <map>
+#include <algorithm>
+
+#include "io_object.hpp"
+#include "i_engine.hpp"
+#include "options.hpp"
+#include "v1_decoder.hpp"
+#include "pgm_socket.hpp"
+
+namespace zmq
+{
+
+    class io_thread_t;
+    class session_base_t;
+
+    class pgm_receiver_t : public io_object_t, public i_engine
+    {
+
+    public:
+
+        pgm_receiver_t (zmq::io_thread_t *parent_, const options_t &options_);
+        ~pgm_receiver_t ();
+
+        int init (bool udp_encapsulation_, const char *network_);
+
+        //  i_engine interface implementation.
+        void plug (zmq::io_thread_t *io_thread_,
+            zmq::session_base_t *session_);
+        void terminate ();
+        void restart_input ();
+        void restart_output ();
+        void zap_msg_available () {}
+
+        //  i_poll_events interface implementation.
+        void in_event ();
+        void timer_event (int token);
+
+    private:
+
+        //  Unplug the engine from the session.
+        void unplug ();
+
+        //  Decode received data (inpos, insize) and forward decoded
+        //  messages to the session.
+        int process_input (v1_decoder_t *decoder);
+
+        //  PGM is not able to move subscriptions upstream. Thus, drop all
+        //  the pending subscriptions.
+        void drop_subscriptions ();
+
+        //  RX timeout timer ID.
+        enum {rx_timer_id = 0xa1};
+
+        //  RX timer is running.
+        bool has_rx_timer;
+
+        //  If joined is true we are already getting messages from the peer.
+        //  It it's false, we are getting data but still we haven't seen
+        //  beginning of a message.
+        struct peer_info_t
+        {
+            bool joined;
+            v1_decoder_t *decoder;
+        };
+
+        struct tsi_comp
+        {
+            bool operator () (const pgm_tsi_t &ltsi,
+                const pgm_tsi_t &rtsi) const
+            {
+                uint32_t ll[2], rl[2];
+                memcpy (ll, &ltsi, sizeof (ll));
+                memcpy (rl, &rtsi, sizeof (rl));
+                return (ll[0] < rl[0]) || (ll[0] == rl[0] && ll[1] < rl[1]);
+            }
+        };
+
+        typedef std::map <pgm_tsi_t, peer_info_t, tsi_comp> peers_t;
+        peers_t peers;
+
+        //  PGM socket.
+        pgm_socket_t pgm_socket;
+
+        //  Socket options.
+        options_t options;
+
+        //  Associated session.
+        zmq::session_base_t *session;
+
+        const pgm_tsi_t *active_tsi;
+
+        //  Number of bytes not consumed by the decoder due to pipe overflow.
+        size_t insize;
+
+        //  Pointer to data still waiting to be processed by the decoder.
+        const unsigned char *inpos;
+
+        //  Poll handle associated with PGM socket.
+        handle_t socket_handle;
+
+        //  Poll handle associated with engine PGM waiting pipe.
+        handle_t pipe_handle;
+
+        pgm_receiver_t (const pgm_receiver_t&);
+        const pgm_receiver_t &operator = (const pgm_receiver_t&);
+    };
+
+}
+
+#endif
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_sender.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_sender.cpp
new file mode 100644
index 00000000..593aa641
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_sender.cpp
@@ -0,0 +1,249 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_OPENPGM
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include <stdlib.h>
+
+#include "io_thread.hpp"
+#include "pgm_sender.hpp"
+#include "session_base.hpp"
+#include "err.hpp"
+#include "wire.hpp"
+#include "stdint.hpp"
+
+zmq::pgm_sender_t::pgm_sender_t (io_thread_t *parent_,
+      const options_t &options_) :
+    io_object_t (parent_),
+    has_tx_timer (false),
+    has_rx_timer (false),
+    session (NULL),
+    encoder (0),
+    more_flag (false),
+    pgm_socket (false, options_),
+    options (options_),
+    out_buffer (NULL),
+    out_buffer_size (0),
+    write_size (0)
+{
+    int rc = msg.init ();
+    errno_assert (rc == 0);
+}
+
+int zmq::pgm_sender_t::init (bool udp_encapsulation_, const char *network_)
+{
+    int rc = pgm_socket.init (udp_encapsulation_, network_);
+    if (rc != 0)
+        return rc;
+
+    out_buffer_size = pgm_socket.get_max_tsdu_size ();
+    out_buffer = (unsigned char*) malloc (out_buffer_size);
+    alloc_assert (out_buffer);
+
+    return rc;
+}
+
+void zmq::pgm_sender_t::plug (io_thread_t *io_thread_, session_base_t *session_)
+{
+    //  Alocate 2 fds for PGM socket.
+    fd_t downlink_socket_fd = retired_fd;
+    fd_t uplink_socket_fd = retired_fd;
+    fd_t rdata_notify_fd = retired_fd;
+    fd_t pending_notify_fd = retired_fd;
+
+    session = session_;
+
+    //  Fill fds from PGM transport and add them to the poller.
+    pgm_socket.get_sender_fds (&downlink_socket_fd, &uplink_socket_fd,
+        &rdata_notify_fd, &pending_notify_fd);
+
+    handle = add_fd (downlink_socket_fd);
+    uplink_handle = add_fd (uplink_socket_fd);
+    rdata_notify_handle = add_fd (rdata_notify_fd);
+    pending_notify_handle = add_fd (pending_notify_fd);
+
+    //  Set POLLIN. We wont never want to stop polling for uplink = we never
+    //  want to stop porocess NAKs.
+    set_pollin (uplink_handle);
+    set_pollin (rdata_notify_handle);
+    set_pollin (pending_notify_handle);
+
+    //  Set POLLOUT for downlink_socket_handle.
+    set_pollout (handle);
+}
+
+void zmq::pgm_sender_t::unplug ()
+{
+    if (has_rx_timer) {
+        cancel_timer (rx_timer_id);
+        has_rx_timer = false;
+    }
+
+    if (has_tx_timer) {
+        cancel_timer (tx_timer_id);
+        has_tx_timer = false;
+    }
+
+    rm_fd (handle);
+    rm_fd (uplink_handle);
+    rm_fd (rdata_notify_handle);
+    rm_fd (pending_notify_handle);
+    session = NULL;
+}
+
+void zmq::pgm_sender_t::terminate ()
+{
+    unplug ();
+    delete this;
+}
+
+void zmq::pgm_sender_t::restart_output ()
+{
+    set_pollout (handle);
+    out_event ();
+}
+
+void zmq::pgm_sender_t::restart_input ()
+{
+    zmq_assert (false);
+}
+
+zmq::pgm_sender_t::~pgm_sender_t ()
+{
+    int rc = msg.close ();
+    errno_assert (rc == 0);
+
+    if (out_buffer) {
+        free (out_buffer);
+        out_buffer = NULL;
+    }
+}
+
+void zmq::pgm_sender_t::in_event ()
+{
+    if (has_rx_timer) {
+        cancel_timer (rx_timer_id);
+        has_rx_timer = false;
+    }
+
+    //  In-event on sender side means NAK or SPMR receiving from some peer.
+    pgm_socket.process_upstream ();
+    if (errno == ENOMEM || errno == EBUSY) {
+        const long timeout = pgm_socket.get_rx_timeout ();
+        add_timer (timeout, rx_timer_id);
+        has_rx_timer = true;
+    }
+}
+
+void zmq::pgm_sender_t::out_event ()
+{
+    //  POLLOUT event from send socket. If write buffer is empty,
+    //  try to read new data from the encoder.
+    if (write_size == 0) {
+
+        //  First two bytes (sizeof uint16_t) are used to store message
+        //  offset in following steps. Note that by passing our buffer to
+        //  the get data function we prevent it from returning its own buffer.
+        unsigned char *bf = out_buffer + sizeof (uint16_t);
+        size_t bfsz = out_buffer_size - sizeof (uint16_t);
+        uint16_t offset = 0xffff;
+
+        size_t bytes = encoder.encode (&bf, bfsz);
+        while (bytes < bfsz) {
+            if (!more_flag && offset == 0xffff)
+                offset = static_cast <uint16_t> (bytes);
+            int rc = session->pull_msg (&msg);
+            if (rc == -1)
+                break;
+            more_flag = msg.flags () & msg_t::more;
+            encoder.load_msg (&msg);
+            bf = out_buffer + sizeof (uint16_t) + bytes;
+            bytes += encoder.encode (&bf, bfsz - bytes);
+        }
+
+        //  If there are no data to write stop polling for output.
+        if (bytes == 0) {
+            reset_pollout (handle);
+            return;
+        }
+
+        write_size = sizeof (uint16_t) + bytes;
+
+        //  Put offset information in the buffer.
+        put_uint16 (out_buffer, offset);
+    }
+
+    if (has_tx_timer) {
+        cancel_timer (tx_timer_id);
+        has_tx_timer = false;
+    }
+
+    //  Send the data.
+    size_t nbytes = pgm_socket.send (out_buffer, write_size);
+
+    //  We can write either all data or 0 which means rate limit reached.
+    if (nbytes == write_size)
+        write_size = 0;
+    else {
+        zmq_assert (nbytes == 0);
+
+        if (errno == ENOMEM) {
+            const long timeout = pgm_socket.get_tx_timeout ();
+            add_timer (timeout, tx_timer_id);
+            has_tx_timer = true;
+        }
+        else
+            errno_assert (errno == EBUSY);
+    }
+}
+
+void zmq::pgm_sender_t::timer_event (int token)
+{
+    //  Timer cancels on return by poller_base.
+    if (token == rx_timer_id) {
+        has_rx_timer = false;
+        in_event ();
+    }
+    else
+    if (token == tx_timer_id) {
+        has_tx_timer = false;
+        out_event ();
+    }
+    else
+        zmq_assert (false);
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_sender.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_sender.hpp
new file mode 100644
index 00000000..bed05f75
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_sender.hpp
@@ -0,0 +1,129 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_PGM_SENDER_HPP_INCLUDED__
+#define __ZMQ_PGM_SENDER_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_OPENPGM
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include "stdint.hpp"
+#include "io_object.hpp"
+#include "i_engine.hpp"
+#include "options.hpp"
+#include "pgm_socket.hpp"
+#include "v1_encoder.hpp"
+#include "msg.hpp"
+
+namespace zmq
+{
+
+    class io_thread_t;
+    class session_base_t;
+
+    class pgm_sender_t : public io_object_t, public i_engine
+    {
+
+    public:
+
+        pgm_sender_t (zmq::io_thread_t *parent_, const options_t &options_);
+        ~pgm_sender_t ();
+
+        int init (bool udp_encapsulation_, const char *network_);
+
+        //  i_engine interface implementation.
+        void plug (zmq::io_thread_t *io_thread_,
+            zmq::session_base_t *session_);
+        void terminate ();
+        void restart_input ();
+        void restart_output ();
+        void zap_msg_available () {}
+
+        //  i_poll_events interface implementation.
+        void in_event ();
+        void out_event ();
+        void timer_event (int token);
+
+    private:
+
+        //  Unplug the engine from the session.
+        void unplug ();
+
+        //  TX and RX timeout timer ID's.
+        enum {tx_timer_id = 0xa0, rx_timer_id = 0xa1};
+
+        //  Timers are running.
+        bool has_tx_timer;
+        bool has_rx_timer;
+
+        session_base_t *session;
+
+        //  Message encoder.
+        v1_encoder_t encoder;
+
+        msg_t msg;
+
+        //  Keeps track of message boundaries.
+        bool more_flag;
+
+        //  PGM socket.
+        pgm_socket_t pgm_socket;
+
+        //  Socket options.
+        options_t options;
+
+        //  Poll handle associated with PGM socket.
+        handle_t handle;
+        handle_t uplink_handle;
+        handle_t rdata_notify_handle;
+        handle_t pending_notify_handle;
+
+        //  Output buffer from pgm_socket.
+        unsigned char *out_buffer;
+
+        //  Output buffer size.
+        size_t out_buffer_size;
+
+        //  Number of bytes in the buffer to be written to the socket.
+        //  If zero, there are no data to be sent.
+        size_t write_size;
+
+        pgm_sender_t (const pgm_sender_t&);
+        const pgm_sender_t &operator = (const pgm_sender_t&);
+    };
+
+}
+#endif
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_socket.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_socket.cpp
new file mode 100644
index 00000000..da8a9591
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_socket.cpp
@@ -0,0 +1,716 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+
+#ifdef ZMQ_HAVE_OPENPGM
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#ifdef ZMQ_HAVE_LINUX
+#include <poll.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <string>
+
+#include "options.hpp"
+#include "pgm_socket.hpp"
+#include "config.hpp"
+#include "err.hpp"
+#include "random.hpp"
+#include "stdint.hpp"
+
+#ifndef MSG_ERRQUEUE
+#define MSG_ERRQUEUE 0x2000
+#endif
+
+zmq::pgm_socket_t::pgm_socket_t (bool receiver_, const options_t &options_) :
+    sock (NULL),
+    options (options_),
+    receiver (receiver_),
+    pgm_msgv (NULL),
+    pgm_msgv_len (0),
+    nbytes_rec (0),
+    nbytes_processed (0),
+    pgm_msgv_processed (0)
+{
+}
+
+//  Resolve PGM socket address.
+//  network_ of the form <interface & multicast group decls>:<IP port>
+//  e.g. eth0;239.192.0.1:7500
+//       link-local;224.250.0.1,224.250.0.2;224.250.0.3:8000
+//       ;[fe80::1%en0]:7500
+int zmq::pgm_socket_t::init_address (const char *network_,
+    struct pgm_addrinfo_t **res, uint16_t *port_number)
+{
+    //  Parse port number, start from end for IPv6
+    const char *port_delim = strrchr (network_, ':');
+    if (!port_delim) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    *port_number = atoi (port_delim + 1);
+
+    char network [256];
+    if (port_delim - network_ >= (int) sizeof (network) - 1) {
+        errno = EINVAL;
+        return -1;
+    }
+    memset (network, '\0', sizeof (network));
+    memcpy (network, network_, port_delim - network_);
+
+    pgm_error_t *pgm_error = NULL;
+    struct pgm_addrinfo_t hints;
+
+    memset (&hints, 0, sizeof (hints));
+    hints.ai_family = AF_UNSPEC;
+    if (!pgm_getaddrinfo (network, NULL, res, &pgm_error)) {
+
+        //  Invalid parameters don't set pgm_error_t.
+        zmq_assert (pgm_error != NULL);
+        if (pgm_error->domain == PGM_ERROR_DOMAIN_IF &&
+
+              //  NB: cannot catch EAI_BADFLAGS.
+            ( pgm_error->code != PGM_ERROR_SERVICE &&
+              pgm_error->code != PGM_ERROR_SOCKTNOSUPPORT)) {
+
+            //  User, host, or network configuration or transient error.
+            pgm_error_free (pgm_error);
+            errno = EINVAL;
+            return -1;
+        }
+
+        //  Fatal OpenPGM internal error.
+        zmq_assert (false);
+    }
+    return 0;
+}
+
+//  Create, bind and connect PGM socket.
+int zmq::pgm_socket_t::init (bool udp_encapsulation_, const char *network_)
+{
+    //  Can not open transport before destroying old one.
+    zmq_assert (sock == NULL);
+    zmq_assert (options.rate > 0);
+
+    //  Zero counter used in msgrecv.
+    nbytes_rec = 0;
+    nbytes_processed = 0;
+    pgm_msgv_processed = 0;
+
+    uint16_t port_number;
+    struct pgm_addrinfo_t *res = NULL;
+    sa_family_t sa_family;
+
+    pgm_error_t *pgm_error = NULL;
+
+    if (init_address(network_, &res, &port_number) < 0) {
+        goto err_abort;
+    }
+
+    zmq_assert (res != NULL);
+
+    //  Pick up detected IP family.
+    sa_family = res->ai_send_addrs[0].gsr_group.ss_family;
+
+    //  Create IP/PGM or UDP/PGM socket.
+    if (udp_encapsulation_) {
+        if (!pgm_socket (&sock, sa_family, SOCK_SEQPACKET, IPPROTO_UDP,
+              &pgm_error)) {
+
+            //  Invalid parameters don't set pgm_error_t.
+            zmq_assert (pgm_error != NULL);
+            if (pgm_error->domain == PGM_ERROR_DOMAIN_SOCKET && (
+                  pgm_error->code != PGM_ERROR_BADF &&
+                  pgm_error->code != PGM_ERROR_FAULT &&
+                  pgm_error->code != PGM_ERROR_NOPROTOOPT &&
+                  pgm_error->code != PGM_ERROR_FAILED))
+
+                //  User, host, or network configuration or transient error.
+                goto err_abort;
+
+            //  Fatal OpenPGM internal error.
+            zmq_assert (false);
+        }
+
+        //  All options are of data type int
+        const int encapsulation_port = port_number;
+        if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_UDP_ENCAP_UCAST_PORT,
+                &encapsulation_port, sizeof (encapsulation_port)))
+            goto err_abort;
+        if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_UDP_ENCAP_MCAST_PORT,
+                &encapsulation_port, sizeof (encapsulation_port)))
+            goto err_abort;
+    }
+    else {
+        if (!pgm_socket (&sock, sa_family, SOCK_SEQPACKET, IPPROTO_PGM,
+              &pgm_error)) {
+
+            //  Invalid parameters don't set pgm_error_t.
+            zmq_assert (pgm_error != NULL);
+            if (pgm_error->domain == PGM_ERROR_DOMAIN_SOCKET && (
+                  pgm_error->code != PGM_ERROR_BADF &&
+                  pgm_error->code != PGM_ERROR_FAULT &&
+                  pgm_error->code != PGM_ERROR_NOPROTOOPT &&
+                  pgm_error->code != PGM_ERROR_FAILED))
+
+                //  User, host, or network configuration or transient error.
+                goto err_abort;
+
+            //  Fatal OpenPGM internal error.
+            zmq_assert (false);
+        }
+    }
+
+    {
+		const int rcvbuf = (int) options.rcvbuf;
+		if (rcvbuf) {
+		    if (!pgm_setsockopt (sock, SOL_SOCKET, SO_RCVBUF, &rcvbuf,
+		          sizeof (rcvbuf)))
+		        goto err_abort;
+		}
+
+		const int sndbuf = (int) options.sndbuf;
+		if (sndbuf) {
+		    if (!pgm_setsockopt (sock, SOL_SOCKET, SO_SNDBUF, &sndbuf,
+		          sizeof (sndbuf)))
+		        goto err_abort;
+		}
+
+		const int max_tpdu = (int) pgm_max_tpdu;
+		if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_MTU, &max_tpdu,
+		      sizeof (max_tpdu)))
+		    goto err_abort;
+    }
+
+    if (receiver) {
+        const int recv_only        = 1,
+                  rxw_max_tpdu     = (int) pgm_max_tpdu,
+                  rxw_sqns         = compute_sqns (rxw_max_tpdu),
+                  peer_expiry      = pgm_secs (300),
+                  spmr_expiry      = pgm_msecs (25),
+                  nak_bo_ivl       = pgm_msecs (50),
+                  nak_rpt_ivl      = pgm_msecs (200),
+                  nak_rdata_ivl    = pgm_msecs (200),
+                  nak_data_retries = 50,
+                  nak_ncf_retries  = 50;
+
+        if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_RECV_ONLY, &recv_only,
+                sizeof (recv_only)) ||
+            !pgm_setsockopt (sock, IPPROTO_PGM, PGM_RXW_SQNS, &rxw_sqns,
+                sizeof (rxw_sqns)) ||
+            !pgm_setsockopt (sock, IPPROTO_PGM, PGM_PEER_EXPIRY, &peer_expiry,
+                sizeof (peer_expiry)) ||
+            !pgm_setsockopt (sock, IPPROTO_PGM, PGM_SPMR_EXPIRY, &spmr_expiry,
+                sizeof (spmr_expiry)) ||
+            !pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_BO_IVL, &nak_bo_ivl,
+                sizeof (nak_bo_ivl)) ||
+            !pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_RPT_IVL, &nak_rpt_ivl,
+                sizeof (nak_rpt_ivl)) ||
+            !pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_RDATA_IVL,
+                &nak_rdata_ivl, sizeof (nak_rdata_ivl)) ||
+            !pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_DATA_RETRIES,
+                &nak_data_retries, sizeof (nak_data_retries)) ||
+            !pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_NCF_RETRIES,
+                &nak_ncf_retries, sizeof (nak_ncf_retries)))
+            goto err_abort;
+    }
+    else {
+        const int send_only        = 1,
+                  max_rte      = (int) ((options.rate * 1000) / 8),
+                  txw_max_tpdu     = (int) pgm_max_tpdu,
+                  txw_sqns         = compute_sqns (txw_max_tpdu),
+                  ambient_spm      = pgm_secs (30),
+                  heartbeat_spm[]  = { pgm_msecs (100),
+                                       pgm_msecs (100),
+                                       pgm_msecs (100),
+                                       pgm_msecs (100),
+                                       pgm_msecs (1300),
+                                       pgm_secs  (7),
+                                       pgm_secs  (16),
+                                       pgm_secs  (25),
+                                       pgm_secs  (30) };
+
+        if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_SEND_ONLY,
+                &send_only, sizeof (send_only)) ||
+            !pgm_setsockopt (sock, IPPROTO_PGM, PGM_ODATA_MAX_RTE,
+                &max_rte, sizeof (max_rte)) ||
+            !pgm_setsockopt (sock, IPPROTO_PGM, PGM_TXW_SQNS,
+                &txw_sqns, sizeof (txw_sqns)) ||
+            !pgm_setsockopt (sock, IPPROTO_PGM, PGM_AMBIENT_SPM,
+                &ambient_spm, sizeof (ambient_spm)) ||
+            !pgm_setsockopt (sock, IPPROTO_PGM, PGM_HEARTBEAT_SPM,
+                &heartbeat_spm, sizeof (heartbeat_spm)))
+            goto err_abort;
+    }
+
+    //  PGM transport GSI.
+    struct pgm_sockaddr_t addr;
+
+    memset (&addr, 0, sizeof(addr));
+    addr.sa_port = port_number;
+    addr.sa_addr.sport = DEFAULT_DATA_SOURCE_PORT;
+
+    //  Create random GSI.
+    uint32_t buf [2];
+    buf [0] = generate_random ();
+    buf [1] = generate_random ();
+    if (!pgm_gsi_create_from_data (&addr.sa_addr.gsi, (uint8_t*) buf, 8))
+        goto err_abort;
+
+
+    //  Bind a transport to the specified network devices.
+    struct pgm_interface_req_t if_req;
+    memset (&if_req, 0, sizeof(if_req));
+    if_req.ir_interface = res->ai_recv_addrs[0].gsr_interface;
+    if_req.ir_scope_id  = 0;
+    if (AF_INET6 == sa_family) {
+        struct sockaddr_in6 sa6;
+        memcpy (&sa6, &res->ai_recv_addrs[0].gsr_group, sizeof (sa6));
+        if_req.ir_scope_id = sa6.sin6_scope_id;
+    }
+    if (!pgm_bind3 (sock, &addr, sizeof (addr), &if_req, sizeof (if_req),
+          &if_req, sizeof (if_req), &pgm_error)) {
+
+        //  Invalid parameters don't set pgm_error_t.
+        zmq_assert (pgm_error != NULL);
+        if ((pgm_error->domain == PGM_ERROR_DOMAIN_SOCKET ||
+             pgm_error->domain == PGM_ERROR_DOMAIN_IF) && (
+             pgm_error->code != PGM_ERROR_INVAL &&
+             pgm_error->code != PGM_ERROR_BADF &&
+             pgm_error->code != PGM_ERROR_FAULT))
+
+            //  User, host, or network configuration or transient error.
+            goto err_abort;
+
+        //  Fatal OpenPGM internal error.
+        zmq_assert (false);
+    }
+
+    //  Join IP multicast groups.
+    for (unsigned i = 0; i < res->ai_recv_addrs_len; i++) {
+        if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_JOIN_GROUP,
+              &res->ai_recv_addrs [i], sizeof (struct group_req)))
+            goto err_abort;
+    }
+    if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_SEND_GROUP,
+          &res->ai_send_addrs [0], sizeof (struct group_req)))
+        goto err_abort;
+
+    pgm_freeaddrinfo (res);
+    res = NULL;
+
+    //  Set IP level parameters.
+    {
+		// Multicast loopback disabled by default
+		const int multicast_loop = 0;
+		if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_MULTICAST_LOOP,
+		      &multicast_loop, sizeof (multicast_loop)))
+		    goto err_abort;
+
+		const int multicast_hops = options.multicast_hops;
+		if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_MULTICAST_HOPS,
+		        &multicast_hops, sizeof (multicast_hops)))
+		    goto err_abort;
+
+		//  Expedited Forwarding PHB for network elements, no ECN.
+		//  Ignore return value due to varied runtime support.
+		const int dscp = 0x2e << 2;
+		if (AF_INET6 != sa_family)
+		    pgm_setsockopt (sock, IPPROTO_PGM, PGM_TOS,
+		       &dscp, sizeof (dscp));
+
+		const int nonblocking = 1;
+		if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_NOBLOCK,
+		      &nonblocking, sizeof (nonblocking)))
+		    goto err_abort;
+    }
+
+    //  Connect PGM transport to start state machine.
+    if (!pgm_connect (sock, &pgm_error)) {
+
+        //  Invalid parameters don't set pgm_error_t.
+        zmq_assert (pgm_error != NULL);
+        goto err_abort;
+    }
+
+    //  For receiver transport preallocate pgm_msgv array.
+    if (receiver) {
+        zmq_assert (in_batch_size > 0);
+        size_t max_tsdu_size = get_max_tsdu_size ();
+        pgm_msgv_len = (int) in_batch_size / max_tsdu_size;
+        if ((int) in_batch_size % max_tsdu_size)
+            pgm_msgv_len++;
+        zmq_assert (pgm_msgv_len);
+
+        pgm_msgv = (pgm_msgv_t*) malloc (sizeof (pgm_msgv_t) * pgm_msgv_len);
+        alloc_assert (pgm_msgv);
+    }
+
+    return 0;
+
+err_abort:
+    if (sock != NULL) {
+        pgm_close (sock, FALSE);
+        sock = NULL;
+    }
+    if (res != NULL) {
+        pgm_freeaddrinfo (res);
+        res = NULL;
+    }
+    if (pgm_error != NULL) {
+        pgm_error_free (pgm_error);
+        pgm_error = NULL;
+    }
+    errno = EINVAL;
+    return -1;
+}
+
+zmq::pgm_socket_t::~pgm_socket_t ()
+{
+    if (pgm_msgv)
+        free (pgm_msgv);
+    if (sock)
+        pgm_close (sock, TRUE);
+}
+
+//  Get receiver fds. receive_fd_ is signaled for incoming packets,
+//  waiting_pipe_fd_ is signaled for state driven events and data.
+void zmq::pgm_socket_t::get_receiver_fds (fd_t *receive_fd_,
+    fd_t *waiting_pipe_fd_)
+{
+    socklen_t socklen;
+    bool rc;
+
+    zmq_assert (receive_fd_);
+    zmq_assert (waiting_pipe_fd_);
+
+    socklen = sizeof (*receive_fd_);
+    rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_RECV_SOCK, receive_fd_,
+        &socklen);
+    zmq_assert (rc);
+    zmq_assert (socklen == sizeof (*receive_fd_));
+
+    socklen = sizeof (*waiting_pipe_fd_);
+    rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_PENDING_SOCK, waiting_pipe_fd_,
+        &socklen);
+    zmq_assert (rc);
+    zmq_assert (socklen == sizeof (*waiting_pipe_fd_));
+}
+
+//  Get fds and store them into user allocated memory.
+//  send_fd is for non-blocking send wire notifications.
+//  receive_fd_ is for incoming back-channel protocol packets.
+//  rdata_notify_fd_ is raised for waiting repair transmissions.
+//  pending_notify_fd_ is for state driven events.
+void zmq::pgm_socket_t::get_sender_fds (fd_t *send_fd_, fd_t *receive_fd_,
+    fd_t *rdata_notify_fd_, fd_t *pending_notify_fd_)
+{
+    socklen_t socklen;
+    bool rc;
+
+    zmq_assert (send_fd_);
+    zmq_assert (receive_fd_);
+    zmq_assert (rdata_notify_fd_);
+    zmq_assert (pending_notify_fd_);
+
+    socklen = sizeof (*send_fd_);
+    rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_SEND_SOCK, send_fd_, &socklen);
+    zmq_assert (rc);
+    zmq_assert (socklen == sizeof (*receive_fd_));
+
+    socklen = sizeof (*receive_fd_);
+    rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_RECV_SOCK, receive_fd_,
+        &socklen);
+    zmq_assert (rc);
+    zmq_assert (socklen == sizeof (*receive_fd_));
+
+    socklen = sizeof (*rdata_notify_fd_);
+    rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_REPAIR_SOCK, rdata_notify_fd_,
+        &socklen);
+    zmq_assert (rc);
+    zmq_assert (socklen == sizeof (*rdata_notify_fd_));
+
+    socklen = sizeof (*pending_notify_fd_);
+    rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_PENDING_SOCK,
+        pending_notify_fd_, &socklen);
+    zmq_assert (rc);
+    zmq_assert (socklen == sizeof (*pending_notify_fd_));
+}
+
+//  Send one APDU, transmit window owned memory.
+//  data_len_ must be less than one TPDU.
+size_t zmq::pgm_socket_t::send (unsigned char *data_, size_t data_len_)
+{
+    size_t nbytes = 0;
+
+    const int status = pgm_send (sock, data_, data_len_, &nbytes);
+
+    //  We have to write all data as one packet.
+    if (nbytes > 0) {
+        zmq_assert (status == PGM_IO_STATUS_NORMAL);
+        zmq_assert (nbytes == data_len_);
+    }
+    else {
+        zmq_assert (status == PGM_IO_STATUS_RATE_LIMITED ||
+            status == PGM_IO_STATUS_WOULD_BLOCK);
+
+        if (status == PGM_IO_STATUS_RATE_LIMITED)
+            errno = ENOMEM;
+        else
+            errno = EBUSY;
+    }
+
+    //  Save return value.
+    last_tx_status = status;
+
+    return nbytes;
+}
+
+long zmq::pgm_socket_t::get_rx_timeout ()
+{
+    if (last_rx_status != PGM_IO_STATUS_RATE_LIMITED &&
+          last_rx_status != PGM_IO_STATUS_TIMER_PENDING)
+        return -1;
+
+    struct timeval tv;
+    socklen_t optlen = sizeof (tv);
+    const bool rc = pgm_getsockopt (sock, IPPROTO_PGM,
+        last_rx_status == PGM_IO_STATUS_RATE_LIMITED ? PGM_RATE_REMAIN :
+        PGM_TIME_REMAIN, &tv, &optlen);
+    zmq_assert (rc);
+
+    const long timeout = (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
+
+    return timeout;
+}
+
+long zmq::pgm_socket_t::get_tx_timeout ()
+{
+    if (last_tx_status != PGM_IO_STATUS_RATE_LIMITED)
+        return -1;
+
+    struct timeval tv;
+    socklen_t optlen = sizeof (tv);
+    const bool rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_RATE_REMAIN, &tv,
+        &optlen);
+    zmq_assert (rc);
+
+    const long timeout = (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
+
+    return timeout;
+}
+
+//  Return max TSDU size without fragmentation from current PGM transport.
+size_t zmq::pgm_socket_t::get_max_tsdu_size ()
+{
+    int max_tsdu = 0;
+    socklen_t optlen = sizeof (max_tsdu);
+
+    bool rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_MSS, &max_tsdu, &optlen);
+    zmq_assert (rc);
+    zmq_assert (optlen == sizeof (max_tsdu));
+    return (size_t) max_tsdu;
+}
+
+//  pgm_recvmsgv is called to fill the pgm_msgv array up to  pgm_msgv_len.
+//  In subsequent calls data from pgm_msgv structure are returned.
+ssize_t zmq::pgm_socket_t::receive (void **raw_data_, const pgm_tsi_t **tsi_)
+{
+    size_t raw_data_len = 0;
+
+    //  We just sent all data from pgm_transport_recvmsgv up
+    //  and have to return 0 that another engine in this thread is scheduled.
+    if (nbytes_rec == nbytes_processed && nbytes_rec > 0) {
+
+        //  Reset all the counters.
+        nbytes_rec = 0;
+        nbytes_processed = 0;
+        pgm_msgv_processed = 0;
+        errno = EAGAIN;
+        return 0;
+    }
+
+    //  If we have are going first time or if we have processed all pgm_msgv_t
+    //  structure previously read from the pgm socket.
+    if (nbytes_rec == nbytes_processed) {
+
+        //  Check program flow.
+        zmq_assert (pgm_msgv_processed == 0);
+        zmq_assert (nbytes_processed == 0);
+        zmq_assert (nbytes_rec == 0);
+
+        //  Receive a vector of Application Protocol Domain Unit's (APDUs)
+        //  from the transport.
+        pgm_error_t *pgm_error = NULL;
+
+        const int status = pgm_recvmsgv (sock, pgm_msgv,
+            pgm_msgv_len, MSG_ERRQUEUE, &nbytes_rec, &pgm_error);
+
+        //  Invalid parameters.
+        zmq_assert (status != PGM_IO_STATUS_ERROR);
+
+        last_rx_status = status;
+
+        //  In a case when no ODATA/RDATA fired POLLIN event (SPM...)
+        //  pgm_recvmsg returns PGM_IO_STATUS_TIMER_PENDING.
+        if (status == PGM_IO_STATUS_TIMER_PENDING) {
+
+            zmq_assert (nbytes_rec == 0);
+
+            //  In case if no RDATA/ODATA caused POLLIN 0 is
+            //  returned.
+            nbytes_rec = 0;
+            errno = EBUSY;
+            return 0;
+        }
+
+        //  Send SPMR, NAK, ACK is rate limited.
+        if (status == PGM_IO_STATUS_RATE_LIMITED) {
+
+            zmq_assert (nbytes_rec == 0);
+
+            //  In case if no RDATA/ODATA caused POLLIN 0 is returned.
+            nbytes_rec = 0;
+            errno = ENOMEM;
+            return 0;
+        }
+
+        //  No peers and hence no incoming packets.
+        if (status == PGM_IO_STATUS_WOULD_BLOCK) {
+
+            zmq_assert (nbytes_rec == 0);
+
+            //  In case if no RDATA/ODATA caused POLLIN 0 is returned.
+            nbytes_rec = 0;
+            errno = EAGAIN;
+            return 0;
+        }
+
+        //  Data loss.
+        if (status == PGM_IO_STATUS_RESET) {
+
+            struct pgm_sk_buff_t* skb = pgm_msgv [0].msgv_skb [0];
+
+            //  Save lost data TSI.
+            *tsi_ = &skb->tsi;
+            nbytes_rec = 0;
+
+            //  In case of dala loss -1 is returned.
+            errno = EINVAL;
+            pgm_free_skb (skb);
+            return -1;
+        }
+
+        zmq_assert (status == PGM_IO_STATUS_NORMAL);
+    }
+    else
+    {
+        zmq_assert (pgm_msgv_processed <= pgm_msgv_len);
+    }
+
+    // Zero byte payloads are valid in PGM, but not 0MQ protocol.
+    zmq_assert (nbytes_rec > 0);
+
+    // Only one APDU per pgm_msgv_t structure is allowed.
+    zmq_assert (pgm_msgv [pgm_msgv_processed].msgv_len == 1);
+
+    struct pgm_sk_buff_t* skb =
+        pgm_msgv [pgm_msgv_processed].msgv_skb [0];
+
+    //  Take pointers from pgm_msgv_t structure.
+    *raw_data_ = skb->data;
+    raw_data_len = skb->len;
+
+    //  Save current TSI.
+    *tsi_ = &skb->tsi;
+
+    //  Move the the next pgm_msgv_t structure.
+    pgm_msgv_processed++;
+    zmq_assert (pgm_msgv_processed <= pgm_msgv_len);
+    nbytes_processed +=raw_data_len;
+
+    return raw_data_len;
+}
+
+void zmq::pgm_socket_t::process_upstream ()
+{
+    pgm_msgv_t dummy_msg;
+
+    size_t dummy_bytes = 0;
+    pgm_error_t *pgm_error = NULL;
+
+    const int status = pgm_recvmsgv (sock, &dummy_msg,
+        1, MSG_ERRQUEUE, &dummy_bytes, &pgm_error);
+
+    //  Invalid parameters.
+    zmq_assert (status != PGM_IO_STATUS_ERROR);
+
+    //  No data should be returned.
+    zmq_assert (dummy_bytes == 0 && (status == PGM_IO_STATUS_TIMER_PENDING ||
+        status == PGM_IO_STATUS_RATE_LIMITED ||
+        status == PGM_IO_STATUS_WOULD_BLOCK));
+
+    last_rx_status = status;
+
+    if (status == PGM_IO_STATUS_TIMER_PENDING)
+        errno = EBUSY;
+    else
+    if (status == PGM_IO_STATUS_RATE_LIMITED)
+        errno = ENOMEM;
+    else
+        errno = EAGAIN;
+}
+
+int zmq::pgm_socket_t::compute_sqns (int tpdu_)
+{
+    //  Convert rate into B/ms.
+    uint64_t rate = uint64_t (options.rate) / 8;
+
+    //  Compute the size of the buffer in bytes.
+    uint64_t size = uint64_t (options.recovery_ivl) * rate;
+
+    //  Translate the size into number of packets.
+    uint64_t sqns = size / tpdu_;
+
+    //  Buffer should be able to hold at least one packet.
+    if (sqns == 0)
+        sqns = 1;
+
+    return (int) sqns;
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_socket.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_socket.hpp
new file mode 100644
index 00000000..c180f488
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pgm_socket.hpp
@@ -0,0 +1,131 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __PGM_SOCKET_HPP_INCLUDED__
+#define __PGM_SOCKET_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_OPENPGM
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#define __PGM_WININT_H__
+#endif
+
+#include <pgm/pgm.h>
+
+#ifdef ZMQ_HAVE_OSX
+#include <pgm/in.h>
+#endif
+
+#include "fd.hpp"
+#include "options.hpp"
+
+namespace zmq
+{
+    //  Encapsulates PGM socket.
+    class pgm_socket_t
+    {
+
+    public:
+
+        //  If receiver_ is true PGM transport is not generating SPM packets.
+        pgm_socket_t (bool receiver_, const options_t &options_);
+
+        //  Closes the transport.
+        ~pgm_socket_t ();
+
+        //  Initialize PGM network structures (GSI, GSRs).
+        int init (bool udp_encapsulation_, const char *network_);
+
+        //  Resolve PGM socket address.
+        static int init_address(const char *network_, struct pgm_addrinfo_t **addr, uint16_t *port_number);
+
+        //   Get receiver fds and store them into user allocated memory.
+        void get_receiver_fds (fd_t *receive_fd_, fd_t *waiting_pipe_fd_);
+
+        //   Get sender and receiver fds and store it to user allocated
+        //   memory. Receive fd is used to process NAKs from peers.
+        void get_sender_fds (fd_t *send_fd_, fd_t *receive_fd_,
+            fd_t *rdata_notify_fd_, fd_t *pending_notify_fd_);
+
+        //  Send data as one APDU, transmit window owned memory.
+        size_t send (unsigned char *data_, size_t data_len_);
+
+        //  Returns max tsdu size without fragmentation.
+        size_t get_max_tsdu_size ();
+
+        //  Receive data from pgm socket.
+        ssize_t receive (void **data_, const pgm_tsi_t **tsi_);
+
+        long get_rx_timeout ();
+        long get_tx_timeout ();
+
+        //  POLLIN on sender side should mean NAK or SPMR receiving.
+        //  process_upstream function is used to handle such a situation.
+        void process_upstream ();
+
+    private:
+
+        //  Compute size of the buffer based on rate and recovery interval.
+        int compute_sqns (int tpdu_);
+
+        //  OpenPGM transport.
+        pgm_sock_t* sock;
+
+        int last_rx_status, last_tx_status;
+
+        //  Associated socket options.
+        options_t options;
+
+        //  true when pgm_socket should create receiving side.
+        bool receiver;
+
+        //  Array of pgm_msgv_t structures to store received data
+        //  from the socket (pgm_transport_recvmsgv).
+        pgm_msgv_t *pgm_msgv;
+
+        //  Size of pgm_msgv array.
+        size_t pgm_msgv_len;
+
+        // How many bytes were read from pgm socket.
+        size_t nbytes_rec;
+
+        //  How many bytes were processed from last pgm socket read.
+        size_t nbytes_processed;
+
+        //  How many messages from pgm_msgv were already sent up.
+        size_t pgm_msgv_processed;
+    };
+}
+#endif
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pipe.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pipe.cpp
new file mode 100644
index 00000000..8d983604
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pipe.cpp
@@ -0,0 +1,519 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <new>
+#include <stddef.h>
+
+#include "pipe.hpp"
+#include "err.hpp"
+
+#include "ypipe.hpp"
+#include "ypipe_conflate.hpp"
+
+int zmq::pipepair (class object_t *parents_ [2], class pipe_t* pipes_ [2],
+    int hwms_ [2], bool conflate_ [2])
+{
+    //   Creates two pipe objects. These objects are connected by two ypipes,
+    //   each to pass messages in one direction.
+
+    typedef ypipe_t <msg_t, message_pipe_granularity> upipe_normal_t;
+    typedef ypipe_conflate_t <msg_t> upipe_conflate_t;
+
+    pipe_t::upipe_t *upipe1;
+    if(conflate_ [0])
+        upipe1 = new (std::nothrow) upipe_conflate_t ();
+    else
+        upipe1 = new (std::nothrow) upipe_normal_t ();
+    alloc_assert (upipe1);
+
+    pipe_t::upipe_t *upipe2;
+    if(conflate_ [1])
+        upipe2 = new (std::nothrow) upipe_conflate_t ();
+    else
+        upipe2 = new (std::nothrow) upipe_normal_t ();
+    alloc_assert (upipe2);
+
+    pipes_ [0] = new (std::nothrow) pipe_t (parents_ [0], upipe1, upipe2,
+        hwms_ [1], hwms_ [0], conflate_ [0]);
+    alloc_assert (pipes_ [0]);
+    pipes_ [1] = new (std::nothrow) pipe_t (parents_ [1], upipe2, upipe1,
+        hwms_ [0], hwms_ [1], conflate_ [1]);
+    alloc_assert (pipes_ [1]);
+
+    pipes_ [0]->set_peer (pipes_ [1]);
+    pipes_ [1]->set_peer (pipes_ [0]);
+
+    return 0;
+}
+
+zmq::pipe_t::pipe_t (object_t *parent_, upipe_t *inpipe_, upipe_t *outpipe_,
+      int inhwm_, int outhwm_, bool conflate_) :
+    object_t (parent_),
+    inpipe (inpipe_),
+    outpipe (outpipe_),
+    in_active (true),
+    out_active (true),
+    hwm (outhwm_),
+    lwm (compute_lwm (inhwm_)),
+    msgs_read (0),
+    msgs_written (0),
+    peers_msgs_read (0),
+    peer (NULL),
+    sink (NULL),
+    state (active),
+    delay (true),
+    conflate (conflate_)
+{
+}
+
+zmq::pipe_t::~pipe_t ()
+{
+}
+
+void zmq::pipe_t::set_peer (pipe_t *peer_)
+{
+    //  Peer can be set once only.
+    zmq_assert (!peer);
+    peer = peer_;
+}
+
+void zmq::pipe_t::set_event_sink (i_pipe_events *sink_)
+{
+    // Sink can be set once only.
+    zmq_assert (!sink);
+    sink = sink_;
+}
+
+void zmq::pipe_t::set_identity (const blob_t &identity_)
+{
+    identity = identity_;
+}
+
+zmq::blob_t zmq::pipe_t::get_identity ()
+{
+    return identity;
+}
+
+zmq::blob_t zmq::pipe_t::get_credential () const
+{
+    return credential;
+}
+
+bool zmq::pipe_t::check_read ()
+{
+    if (unlikely (!in_active))
+        return false;
+    if (unlikely (state != active && state != waiting_for_delimiter))
+        return false;
+
+    //  Check if there's an item in the pipe.
+    if (!inpipe->check_read ()) {
+        in_active = false;
+        return false;
+    }
+
+    //  If the next item in the pipe is message delimiter,
+    //  initiate termination process.
+    if (inpipe->probe (is_delimiter)) {
+        msg_t msg;
+        bool ok = inpipe->read (&msg);
+        zmq_assert (ok);
+        process_delimiter ();
+        return false;
+    }
+
+    return true;
+}
+
+bool zmq::pipe_t::read (msg_t *msg_)
+{
+    if (unlikely (!in_active))
+        return false;
+    if (unlikely (state != active && state != waiting_for_delimiter))
+        return false;
+
+read_message:
+    if (!inpipe->read (msg_)) {
+        in_active = false;
+        return false;
+    }
+
+    //  If this is a credential, save a copy and receive next message.
+    if (unlikely (msg_->is_credential ())) {
+        const unsigned char *data = static_cast <const unsigned char *> (msg_->data ());
+        credential = blob_t (data, msg_->size ());
+        const int rc = msg_->close ();
+        zmq_assert (rc == 0);
+        goto read_message;
+    }
+
+    //  If delimiter was read, start termination process of the pipe.
+    if (msg_->is_delimiter ()) {
+        process_delimiter ();
+        return false;
+    }
+
+    if (!(msg_->flags () & msg_t::more) && !msg_->is_identity ())
+        msgs_read++;
+
+    if (lwm > 0 && msgs_read % lwm == 0)
+        send_activate_write (peer, msgs_read);
+
+    return true;
+}
+
+bool zmq::pipe_t::check_write ()
+{
+    if (unlikely (!out_active || state != active))
+        return false;
+
+    bool full = hwm > 0 && msgs_written - peers_msgs_read == uint64_t (hwm);
+
+    if (unlikely (full)) {
+        out_active = false;
+        return false;
+    }
+
+    return true;
+}
+
+bool zmq::pipe_t::write (msg_t *msg_)
+{
+    if (unlikely (!check_write ()))
+        return false;
+
+    bool more = msg_->flags () & msg_t::more ? true : false;
+    const bool is_identity = msg_->is_identity ();
+    outpipe->write (*msg_, more);
+    if (!more && !is_identity)
+        msgs_written++;
+
+    return true;
+}
+
+void zmq::pipe_t::rollback ()
+{
+    //  Remove incomplete message from the outbound pipe.
+    msg_t msg;
+    if (outpipe) {
+        while (outpipe->unwrite (&msg)) {
+            zmq_assert (msg.flags () & msg_t::more);
+            int rc = msg.close ();
+            errno_assert (rc == 0);
+        }
+    }
+}
+
+void zmq::pipe_t::flush ()
+{
+    //  The peer does not exist anymore at this point.
+    if (state == term_ack_sent)
+        return;
+
+    if (outpipe && !outpipe->flush ())
+        send_activate_read (peer);
+}
+
+void zmq::pipe_t::process_activate_read ()
+{
+    if (!in_active && (state == active || state == waiting_for_delimiter)) {
+        in_active = true;
+        sink->read_activated (this);
+    }
+}
+
+void zmq::pipe_t::process_activate_write (uint64_t msgs_read_)
+{
+    //  Remember the peers's message sequence number.
+    peers_msgs_read = msgs_read_;
+
+    if (!out_active && state == active) {
+        out_active = true;
+        sink->write_activated (this);
+    }
+}
+
+void zmq::pipe_t::process_hiccup (void *pipe_)
+{
+    //  Destroy old outpipe. Note that the read end of the pipe was already
+    //  migrated to this thread.
+    zmq_assert (outpipe);
+    outpipe->flush ();
+    msg_t msg;
+    while (outpipe->read (&msg)) {
+       if (!(msg.flags () & msg_t::more))
+            msgs_written--;
+       int rc = msg.close ();
+       errno_assert (rc == 0);
+    }
+    delete outpipe;
+
+    //  Plug in the new outpipe.
+    zmq_assert (pipe_);
+    outpipe = (upipe_t*) pipe_;
+    out_active = true;
+
+    //  If appropriate, notify the user about the hiccup.
+    if (state == active)
+        sink->hiccuped (this);
+}
+
+void zmq::pipe_t::process_pipe_term ()
+{
+    zmq_assert (state == active
+            ||  state == delimiter_received
+            ||  state == term_req_sent1);
+
+    //  This is the simple case of peer-induced termination. If there are no
+    //  more pending messages to read, or if the pipe was configured to drop
+    //  pending messages, we can move directly to the term_ack_sent state.
+    //  Otherwise we'll hang up in waiting_for_delimiter state till all
+    //  pending messages are read.
+    if (state == active) {
+        if (delay)
+            state = waiting_for_delimiter;
+        else {
+            state = term_ack_sent;
+            outpipe = NULL;
+            send_pipe_term_ack (peer);
+        }
+    }
+
+    //  Delimiter happened to arrive before the term command. Now we have the
+    //  term command as well, so we can move straight to term_ack_sent state.
+    else
+    if (state == delimiter_received) {
+        state = term_ack_sent;
+        outpipe = NULL;
+        send_pipe_term_ack (peer);
+    }
+
+    //  This is the case where both ends of the pipe are closed in parallel.
+    //  We simply reply to the request by ack and continue waiting for our
+    //  own ack.
+    else
+    if (state == term_req_sent1) {
+        state = term_req_sent2;
+        outpipe = NULL;
+        send_pipe_term_ack (peer);
+    }
+}
+
+void zmq::pipe_t::process_pipe_term_ack ()
+{
+    //  Notify the user that all the references to the pipe should be dropped.
+    zmq_assert (sink);
+    sink->pipe_terminated (this);
+
+    //  In term_ack_sent and term_req_sent2 states there's nothing to do.
+    //  Simply deallocate the pipe. In term_req_sent1 state we have to ack
+    //  the peer before deallocating this side of the pipe.
+    //  All the other states are invalid.
+    if (state == term_req_sent1) {
+        outpipe = NULL;
+        send_pipe_term_ack (peer);
+    }
+    else
+        zmq_assert (state == term_ack_sent || state == term_req_sent2);
+
+    //  We'll deallocate the inbound pipe, the peer will deallocate the outbound
+    //  pipe (which is an inbound pipe from its point of view).
+    //  First, delete all the unread messages in the pipe. We have to do it by
+    //  hand because msg_t doesn't have automatic destructor. Then deallocate
+    //  the ypipe itself.
+
+    if (!conflate) {
+        msg_t msg;
+        while (inpipe->read (&msg)) {
+            int rc = msg.close ();
+            errno_assert (rc == 0);
+        }
+    }
+
+    delete inpipe;
+
+    //  Deallocate the pipe object
+    delete this;
+}
+
+void zmq::pipe_t::set_nodelay ()
+{
+    this->delay = false;
+}
+
+void zmq::pipe_t::terminate (bool delay_)
+{
+    //  Overload the value specified at pipe creation.
+    delay = delay_;
+
+    //  If terminate was already called, we can ignore the duplicit invocation.
+    if (state == term_req_sent1 || state == term_req_sent2)
+        return;
+
+    //  If the pipe is in the final phase of async termination, it's going to
+    //  closed anyway. No need to do anything special here.
+    else
+    if (state == term_ack_sent)
+        return;
+
+    //  The simple sync termination case. Ask the peer to terminate and wait
+    //  for the ack.
+    else
+    if (state == active) {
+        send_pipe_term (peer);
+        state = term_req_sent1;
+    }
+
+    //  There are still pending messages available, but the user calls
+    //  'terminate'. We can act as if all the pending messages were read.
+    else
+    if (state == waiting_for_delimiter && !delay) {
+        outpipe = NULL;
+        send_pipe_term_ack (peer);
+        state = term_ack_sent;
+    }
+
+    //  If there are pending messages still availabe, do nothing.
+    else
+    if (state == waiting_for_delimiter) {
+    }
+
+    //  We've already got delimiter, but not term command yet. We can ignore
+    //  the delimiter and ack synchronously terminate as if we were in
+    //  active state.
+    else
+    if (state == delimiter_received) {
+        send_pipe_term (peer);
+        state = term_req_sent1;
+    }
+
+    //  There are no other states.
+    else
+        zmq_assert (false);
+
+    //  Stop outbound flow of messages.
+    out_active = false;
+
+    if (outpipe) {
+
+        //  Drop any unfinished outbound messages.
+        rollback ();
+
+        //  Write the delimiter into the pipe. Note that watermarks are not
+        //  checked; thus the delimiter can be written even when the pipe is full.
+        msg_t msg;
+        msg.init_delimiter ();
+        outpipe->write (msg, false);
+        flush ();
+    }
+}
+
+bool zmq::pipe_t::is_delimiter (const msg_t &msg_)
+{
+    return msg_.is_delimiter ();
+}
+
+int zmq::pipe_t::compute_lwm (int hwm_)
+{
+    //  Compute the low water mark. Following point should be taken
+    //  into consideration:
+    //
+    //  1. LWM has to be less than HWM.
+    //  2. LWM cannot be set to very low value (such as zero) as after filling
+    //     the queue it would start to refill only after all the messages are
+    //     read from it and thus unnecessarily hold the progress back.
+    //  3. LWM cannot be set to very high value (such as HWM-1) as it would
+    //     result in lock-step filling of the queue - if a single message is
+    //     read from a full queue, writer thread is resumed to write exactly one
+    //     message to the queue and go back to sleep immediately. This would
+    //     result in low performance.
+    //
+    //  Given the 3. it would be good to keep HWM and LWM as far apart as
+    //  possible to reduce the thread switching overhead to almost zero,
+    //  say HWM-LWM should be max_wm_delta.
+    //
+    //  That done, we still we have to account for the cases where
+    //  HWM < max_wm_delta thus driving LWM to negative numbers.
+    //  Let's make LWM 1/2 of HWM in such cases.
+    int result = (hwm_ > max_wm_delta * 2) ?
+        hwm_ - max_wm_delta : (hwm_ + 1) / 2;
+
+    return result;
+}
+
+void zmq::pipe_t::process_delimiter ()
+{
+    zmq_assert (state == active
+            ||  state == waiting_for_delimiter);
+
+    if (state == active)
+        state = delimiter_received;
+    else {
+        outpipe = NULL;
+        send_pipe_term_ack (peer);
+        state = term_ack_sent;
+    }
+}
+
+void zmq::pipe_t::hiccup ()
+{
+    //  If termination is already under way do nothing.
+    if (state != active)
+        return;
+
+    //  We'll drop the pointer to the inpipe. From now on, the peer is
+    //  responsible for deallocating it.
+    inpipe = NULL;
+
+    //  Create new inpipe.
+    if (conflate)
+        inpipe = new (std::nothrow)
+            ypipe_conflate_t <msg_t> ();
+    else
+        inpipe = new (std::nothrow)
+            ypipe_t <msg_t, message_pipe_granularity> ();
+
+    alloc_assert (inpipe);
+    in_active = true;
+
+    //  Notify the peer about the hiccup.
+    send_hiccup (peer, (void*) inpipe);
+}
+
+void zmq::pipe_t::set_hwms (int inhwm_, int outhwm_)
+{
+    lwm = compute_lwm (inhwm_);
+    hwm = outhwm_;
+}
+
+bool zmq::pipe_t::check_hwm () const
+{
+    bool full = hwm > 0 && msgs_written - peers_msgs_read >= uint64_t (hwm - 1);
+    return( !full );
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pipe.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pipe.hpp
new file mode 100644
index 00000000..b7d7f8f4
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pipe.hpp
@@ -0,0 +1,233 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_PIPE_HPP_INCLUDED__
+#define __ZMQ_PIPE_HPP_INCLUDED__
+
+#include "msg.hpp"
+#include "ypipe_base.hpp"
+#include "config.hpp"
+#include "object.hpp"
+#include "stdint.hpp"
+#include "array.hpp"
+#include "blob.hpp"
+
+namespace zmq
+{
+
+    class object_t;
+    class pipe_t;
+
+    //  Create a pipepair for bi-directional transfer of messages.
+    //  First HWM is for messages passed from first pipe to the second pipe.
+    //  Second HWM is for messages passed from second pipe to the first pipe.
+    //  Delay specifies how the pipe behaves when the peer terminates. If true
+    //  pipe receives all the pending messages before terminating, otherwise it
+    //  terminates straight away.
+    //  If conflate is true, only the most recently arrived message could be
+    //  read (older messages are discarded)
+    int pipepair (zmq::object_t *parents_ [2], zmq::pipe_t* pipes_ [2],
+        int hwms_ [2], bool conflate_ [2]);
+
+    struct i_pipe_events
+    {
+        virtual ~i_pipe_events () {}
+
+        virtual void read_activated (zmq::pipe_t *pipe_) = 0;
+        virtual void write_activated (zmq::pipe_t *pipe_) = 0;
+        virtual void hiccuped (zmq::pipe_t *pipe_) = 0;
+        virtual void pipe_terminated (zmq::pipe_t *pipe_) = 0;
+    };
+
+    //  Note that pipe can be stored in three different arrays.
+    //  The array of inbound pipes (1), the array of outbound pipes (2) and
+    //  the generic array of pipes to deallocate (3).
+
+    class pipe_t :
+        public object_t,
+        public array_item_t <1>,
+        public array_item_t <2>,
+        public array_item_t <3>
+    {
+        //  This allows pipepair to create pipe objects.
+        friend int pipepair (zmq::object_t *parents_ [2], zmq::pipe_t* pipes_ [2],
+            int hwms_ [2], bool conflate_ [2]);
+
+    public:
+
+        //  Specifies the object to send events to.
+        void set_event_sink (i_pipe_events *sink_);
+
+        //  Pipe endpoint can store an opaque ID to be used by its clients.
+        void set_identity (const blob_t &identity_);
+        blob_t get_identity ();
+
+        blob_t get_credential () const;
+
+        //  Returns true if there is at least one message to read in the pipe.
+        bool check_read ();
+
+        //  Reads a message to the underlying pipe.
+        bool read (msg_t *msg_);
+
+        //  Checks whether messages can be written to the pipe. If writing
+        //  the message would cause high watermark the function returns false.
+        bool check_write ();
+
+        //  Writes a message to the underlying pipe. Returns false if the
+        //  message cannot be written because high watermark was reached.
+        bool write (msg_t *msg_);
+
+        //  Remove unfinished parts of the outbound message from the pipe.
+        void rollback ();
+
+        //  Flush the messages downsteam.
+        void flush ();
+
+        //  Temporaraily disconnects the inbound message stream and drops
+        //  all the messages on the fly. Causes 'hiccuped' event to be generated
+        //  in the peer.
+        void hiccup ();
+
+        // Ensure the pipe wont block on receiving pipe_term.
+        void set_nodelay ();
+
+        //  Ask pipe to terminate. The termination will happen asynchronously
+        //  and user will be notified about actual deallocation by 'terminated'
+        //  event. If delay is true, the pending messages will be processed
+        //  before actual shutdown.
+        void terminate (bool delay_);
+
+        // set the high water marks.
+        void set_hwms (int inhwm_, int outhwm_);
+
+        // check HWM
+        bool check_hwm () const;
+    private:
+
+        //  Type of the underlying lock-free pipe.
+        typedef ypipe_base_t <msg_t> upipe_t;
+
+        //  Command handlers.
+        void process_activate_read ();
+        void process_activate_write (uint64_t msgs_read_);
+        void process_hiccup (void *pipe_);
+        void process_pipe_term ();
+        void process_pipe_term_ack ();
+
+        //  Handler for delimiter read from the pipe.
+        void process_delimiter ();
+
+        //  Constructor is private. Pipe can only be created using
+        //  pipepair function.
+        pipe_t (object_t *parent_, upipe_t *inpipe_, upipe_t *outpipe_,
+            int inhwm_, int outhwm_, bool conflate_);
+
+        //  Pipepair uses this function to let us know about
+        //  the peer pipe object.
+        void set_peer (pipe_t *pipe_);
+
+        //  Destructor is private. Pipe objects destroy themselves.
+        ~pipe_t ();
+
+        //  Underlying pipes for both directions.
+        upipe_t *inpipe;
+        upipe_t *outpipe;
+
+        //  Can the pipe be read from / written to?
+        bool in_active;
+        bool out_active;
+
+        //  High watermark for the outbound pipe.
+        int hwm;
+
+        //  Low watermark for the inbound pipe.
+        int lwm;
+
+        //  Number of messages read and written so far.
+        uint64_t msgs_read;
+        uint64_t msgs_written;
+
+        //  Last received peer's msgs_read. The actual number in the peer
+        //  can be higher at the moment.
+        uint64_t peers_msgs_read;
+
+        //  The pipe object on the other side of the pipepair.
+        pipe_t *peer;
+
+        //  Sink to send events to.
+        i_pipe_events *sink;
+
+        //  States of the pipe endpoint:
+        //  active: common state before any termination begins,
+        //  delimiter_received: delimiter was read from pipe before
+        //      term command was received,
+        //  waiting_fo_delimiter: term command was already received
+        //      from the peer but there are still pending messages to read,
+        //  term_ack_sent: all pending messages were already read and
+        //      all we are waiting for is ack from the peer,
+        //  term_req_sent1: 'terminate' was explicitly called by the user,
+        //  term_req_sent2: user called 'terminate' and then we've got
+        //      term command from the peer as well.
+        enum {
+            active,
+            delimiter_received,
+            waiting_for_delimiter,
+            term_ack_sent,
+            term_req_sent1,
+            term_req_sent2
+        } state;
+
+        //  If true, we receive all the pending inbound messages before
+        //  terminating. If false, we terminate immediately when the peer
+        //  asks us to.
+        bool delay;
+
+        //  Identity of the writer. Used uniquely by the reader side.
+        blob_t identity;
+
+        //  Pipe's credential.
+        blob_t credential;
+
+        //  Returns true if the message is delimiter; false otherwise.
+        static bool is_delimiter (const msg_t &msg_);
+
+        //  Computes appropriate low watermark from the given high watermark.
+        static int compute_lwm (int hwm_);
+
+        const bool conflate;
+
+        //  Disable copying.
+        pipe_t (const pipe_t&);
+        const pipe_t &operator = (const pipe_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/plain_client.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/plain_client.cpp
new file mode 100644
index 00000000..04be39f3
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/plain_client.cpp
@@ -0,0 +1,222 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include <string>
+
+#include "msg.hpp"
+#include "err.hpp"
+#include "plain_client.hpp"
+
+zmq::plain_client_t::plain_client_t (const options_t &options_) :
+    mechanism_t (options_),
+    state (sending_hello)
+{
+}
+
+zmq::plain_client_t::~plain_client_t ()
+{
+}
+
+int zmq::plain_client_t::next_handshake_command (msg_t *msg_)
+{
+    int rc = 0;
+
+    switch (state) {
+        case sending_hello:
+            rc = produce_hello (msg_);
+            if (rc == 0)
+                state = waiting_for_welcome;
+            break;
+        case sending_initiate:
+            rc = produce_initiate (msg_);
+            if (rc == 0)
+                state = waiting_for_ready;
+            break;
+        default:
+            errno = EAGAIN;
+            rc = -1;
+    }
+    return rc;
+}
+
+int zmq::plain_client_t::process_handshake_command (msg_t *msg_)
+{
+    const unsigned char *cmd_data =
+        static_cast <unsigned char *> (msg_->data ());
+    const size_t data_size = msg_->size ();
+
+    int rc = 0;
+    if (data_size >= 8 && !memcmp (cmd_data, "\7WELCOME", 8))
+        rc = process_welcome (cmd_data, data_size);
+    else
+    if (data_size >= 6 && !memcmp (cmd_data, "\5READY", 6))
+        rc = process_ready (cmd_data, data_size);
+    else
+    if (data_size >= 6 && !memcmp (cmd_data, "\5ERROR", 6))
+        rc = process_error (cmd_data, data_size);
+    else {
+        //  Temporary support for security debugging
+        puts ("PLAIN I: invalid handshake command");
+        errno = EPROTO;
+        rc = -1;
+    }
+
+    if (rc == 0) {
+        rc = msg_->close ();
+        errno_assert (rc == 0);
+        rc = msg_->init ();
+        errno_assert (rc == 0);
+    }
+
+    return rc;
+}
+
+zmq::mechanism_t::status_t zmq::plain_client_t::status () const
+{
+    if (state == ready)
+        return mechanism_t::ready;
+    else
+    if (state == error_command_received)
+        return mechanism_t::error;
+    else
+        return mechanism_t::handshaking;
+}
+
+int zmq::plain_client_t::produce_hello (msg_t *msg_) const
+{
+    const std::string username = options.plain_username;
+    zmq_assert (username.length () < 256);
+
+    const std::string password = options.plain_password;
+    zmq_assert (password.length () < 256);
+
+    const size_t command_size = 6 + 1 + username.length ()
+                                  + 1 + password.length ();
+
+    const int rc = msg_->init_size (command_size);
+    errno_assert (rc == 0);
+
+    unsigned char *ptr = static_cast <unsigned char *> (msg_->data ());
+    memcpy (ptr, "\x05HELLO", 6);
+    ptr += 6;
+
+    *ptr++ = static_cast <unsigned char> (username.length ());
+    memcpy (ptr, username.c_str (), username.length ());
+    ptr += username.length ();
+
+    *ptr++ = static_cast <unsigned char> (password.length ());
+    memcpy (ptr, password.c_str (), password.length ());
+    ptr += password.length ();
+
+    return 0;
+}
+
+int zmq::plain_client_t::process_welcome (
+        const unsigned char *cmd_data, size_t data_size)
+{
+    if (state != waiting_for_welcome) {
+        errno = EPROTO;
+        return -1;
+    }
+    if (data_size != 8) {
+        errno = EPROTO;
+        return -1;
+    }
+    state = sending_initiate;
+    return 0;
+}
+
+int zmq::plain_client_t::produce_initiate (msg_t *msg_) const
+{
+    unsigned char * const command_buffer = (unsigned char *) malloc (512);
+    alloc_assert (command_buffer);
+
+    unsigned char *ptr = command_buffer;
+
+    //  Add mechanism string
+    memcpy (ptr, "\x08INITIATE", 9);
+    ptr += 9;
+
+    //  Add socket type property
+    const char *socket_type = socket_type_string (options.type);
+    ptr += add_property (ptr, "Socket-Type", socket_type, strlen (socket_type));
+
+    //  Add identity property
+    if (options.type == ZMQ_REQ
+    ||  options.type == ZMQ_DEALER
+    ||  options.type == ZMQ_ROUTER)
+        ptr += add_property (
+            ptr, "Identity", options.identity, options.identity_size);
+
+    const size_t command_size = ptr - command_buffer;
+    const int rc = msg_->init_size (command_size);
+    errno_assert (rc == 0);
+    memcpy (msg_->data (), command_buffer, command_size);
+    free (command_buffer);
+
+    return 0;
+}
+
+int zmq::plain_client_t::process_ready (
+        const unsigned char *cmd_data, size_t data_size)
+{
+    if (state != waiting_for_ready) {
+        errno = EPROTO;
+        return -1;
+    }
+    const int rc = parse_metadata (cmd_data + 6, data_size - 6);
+    if (rc == 0)
+        state = ready;
+    return rc;
+}
+
+int zmq::plain_client_t::process_error (
+        const unsigned char *cmd_data, size_t data_size)
+{
+    if (state != waiting_for_welcome && state != waiting_for_ready) {
+        errno = EPROTO;
+        return -1;
+    }
+    if (data_size < 7) {
+        errno = EPROTO;
+        return -1;
+    }
+    const size_t error_reason_len = static_cast <size_t> (cmd_data [6]);
+    if (error_reason_len > data_size - 7) {
+        errno = EPROTO;
+        return -1;
+    }
+    state = error_command_received;
+    return 0;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/plain_client.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/plain_client.hpp
new file mode 100644
index 00000000..b00fe17a
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/plain_client.hpp
@@ -0,0 +1,79 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_PLAIN_CLIENT_HPP_INCLUDED__
+#define __ZMQ_PLAIN_CLIENT_HPP_INCLUDED__
+
+#include "mechanism.hpp"
+#include "options.hpp"
+
+namespace zmq
+{
+
+    class msg_t;
+
+    class plain_client_t : public mechanism_t
+    {
+    public:
+
+        plain_client_t (const options_t &options_);
+        virtual ~plain_client_t ();
+
+        // mechanism implementation
+        virtual int next_handshake_command (msg_t *msg_);
+        virtual int process_handshake_command (msg_t *msg_);
+        virtual status_t status () const;
+
+    private:
+
+        enum state_t {
+            sending_hello,
+            waiting_for_welcome,
+            sending_initiate,
+            waiting_for_ready,
+            error_command_received,
+            ready
+        };
+
+        state_t state;
+
+        int produce_hello (msg_t *msg_) const;
+        int produce_initiate (msg_t *msg_) const;
+
+        int process_welcome (
+            const unsigned char *cmd_data, size_t data_size);
+        int process_ready (
+            const unsigned char *cmd_data, size_t data_size);
+        int process_error (
+            const unsigned char *cmd_data, size_t data_size);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/plain_server.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/plain_server.cpp
new file mode 100644
index 00000000..bddd4071
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/plain_server.cpp
@@ -0,0 +1,440 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include <string>
+
+#include "msg.hpp"
+#include "session_base.hpp"
+#include "err.hpp"
+#include "plain_server.hpp"
+#include "wire.hpp"
+
+zmq::plain_server_t::plain_server_t (session_base_t *session_,
+                                     const std::string &peer_address_,
+                                     const options_t &options_) :
+    mechanism_t (options_),
+    session (session_),
+    peer_address (peer_address_),
+    state (waiting_for_hello)
+{
+}
+
+zmq::plain_server_t::~plain_server_t ()
+{
+}
+
+int zmq::plain_server_t::next_handshake_command (msg_t *msg_)
+{
+    int rc = 0;
+
+    switch (state) {
+        case sending_welcome:
+            rc = produce_welcome (msg_);
+            if (rc == 0)
+                state = waiting_for_initiate;
+            break;
+        case sending_ready:
+            rc = produce_ready (msg_);
+            if (rc == 0)
+                state = ready;
+            break;
+        case sending_error:
+            rc = produce_error (msg_);
+            if (rc == 0)
+                state = error_command_sent;
+            break;
+        default:
+            errno = EAGAIN;
+            rc = -1;
+    }
+    return rc;
+}
+
+int zmq::plain_server_t::process_handshake_command (msg_t *msg_)
+{
+    int rc = 0;
+
+    switch (state) {
+        case waiting_for_hello:
+            rc = process_hello (msg_);
+            break;
+        case waiting_for_initiate:
+            rc = process_initiate (msg_);
+            break;
+        default:
+            //  Temporary support for security debugging
+            puts ("PLAIN I: invalid handshake command");
+            errno = EPROTO;
+            rc = -1;
+            break;
+    }
+    if (rc == 0) {
+        rc = msg_->close ();
+        errno_assert (rc == 0);
+        rc = msg_->init ();
+        errno_assert (rc == 0);
+    }
+    return rc;
+}
+
+zmq::mechanism_t::status_t zmq::plain_server_t::status () const
+{
+    if (state == ready)
+        return mechanism_t::ready;
+    else
+    if (state == error_command_sent)
+        return mechanism_t::error;
+    else
+        return mechanism_t::handshaking;
+}
+
+int zmq::plain_server_t::zap_msg_available ()
+{
+    if (state != waiting_for_zap_reply) {
+        errno = EFSM;
+        return -1;
+    }
+    const int rc = receive_and_process_zap_reply ();
+    if (rc == 0)
+        state = status_code == "200"
+            ? sending_welcome
+            : sending_error;
+    return rc;
+}
+
+int zmq::plain_server_t::process_hello (msg_t *msg_)
+{
+    const unsigned char *ptr = static_cast <unsigned char *> (msg_->data ());
+    size_t bytes_left = msg_->size ();
+
+    if (bytes_left < 6 || memcmp (ptr, "\x05HELLO", 6)) {
+        //  Temporary support for security debugging
+        puts ("PLAIN I: invalid PLAIN client, did not send HELLO");
+        errno = EPROTO;
+        return -1;
+    }
+    ptr += 6;
+    bytes_left -= 6;
+
+    if (bytes_left < 1) {
+        //  Temporary support for security debugging
+        puts ("PLAIN I: invalid PLAIN client, did not send username");
+        errno = EPROTO;
+        return -1;
+    }
+    const size_t username_length = static_cast <size_t> (*ptr++);
+    bytes_left -= 1;
+
+    if (bytes_left < username_length) {
+        //  Temporary support for security debugging
+        puts ("PLAIN I: invalid PLAIN client, sent malformed username");
+        errno = EPROTO;
+        return -1;
+    }
+    const std::string username = std::string ((char *) ptr, username_length);
+    ptr += username_length;
+    bytes_left -= username_length;
+    if (bytes_left < 1) {
+        //  Temporary support for security debugging
+        puts ("PLAIN I: invalid PLAIN client, did not send password");
+        errno = EPROTO;
+        return -1;
+    }
+
+    const size_t password_length = static_cast <size_t> (*ptr++);
+    bytes_left -= 1;
+    if (bytes_left < password_length) {
+        //  Temporary support for security debugging
+        puts ("PLAIN I: invalid PLAIN client, sent malformed password");
+        errno = EPROTO;
+        return -1;
+    }
+
+    const std::string password = std::string ((char *) ptr, password_length);
+    ptr += password_length;
+    bytes_left -= password_length;
+    if (bytes_left > 0) {
+        //  Temporary support for security debugging
+        puts ("PLAIN I: invalid PLAIN client, sent extraneous data");
+        errno = EPROTO;
+        return -1;
+    }
+
+    //  Use ZAP protocol (RFC 27) to authenticate the user.
+    int rc = session->zap_connect ();
+    if (rc == 0) {
+        send_zap_request (username, password);
+        rc = receive_and_process_zap_reply ();
+        if (rc == 0)
+            state = status_code == "200"
+                ? sending_welcome
+                : sending_error;
+        else
+        if (errno == EAGAIN)
+            state = waiting_for_zap_reply;
+        else
+            return -1;
+    }
+    else
+        state = sending_welcome;
+
+    return 0;
+}
+
+int zmq::plain_server_t::produce_welcome (msg_t *msg_) const
+{
+    const int rc = msg_->init_size (8);
+    errno_assert (rc == 0);
+    memcpy (msg_->data (), "\x07WELCOME", 8);
+    return 0;
+}
+
+int zmq::plain_server_t::process_initiate (msg_t *msg_)
+{
+    const unsigned char *ptr = static_cast <unsigned char *> (msg_->data ());
+    const size_t bytes_left = msg_->size ();
+
+    if (bytes_left < 9 || memcmp (ptr, "\x08INITIATE", 9)) {
+        //  Temporary support for security debugging
+        puts ("PLAIN I: invalid PLAIN client, did not send INITIATE");
+        errno = EPROTO;
+        return -1;
+    }
+    const int rc = parse_metadata (ptr + 9, bytes_left - 9);
+    if (rc == 0)
+        state = sending_ready;
+    return rc;
+}
+
+int zmq::plain_server_t::produce_ready (msg_t *msg_) const
+{
+    unsigned char * const command_buffer = (unsigned char *) malloc (512);
+    alloc_assert (command_buffer);
+
+    unsigned char *ptr = command_buffer;
+
+    //  Add command name
+    memcpy (ptr, "\x05READY", 6);
+    ptr += 6;
+
+    //  Add socket type property
+    const char *socket_type = socket_type_string (options.type);
+    ptr += add_property (ptr, "Socket-Type", socket_type, strlen (socket_type));
+
+    //  Add identity property
+    if (options.type == ZMQ_REQ
+    ||  options.type == ZMQ_DEALER
+    ||  options.type == ZMQ_ROUTER)
+        ptr += add_property (
+            ptr, "Identity", options.identity, options.identity_size);
+
+    const size_t command_size = ptr - command_buffer;
+    const int rc = msg_->init_size (command_size);
+    errno_assert (rc == 0);
+    memcpy (msg_->data (), command_buffer, command_size);
+    free (command_buffer);
+
+    return 0;
+}
+
+int zmq::plain_server_t::produce_error (msg_t *msg_) const
+{
+    zmq_assert (status_code.length () == 3);
+    const int rc = msg_->init_size (6 + 1 + status_code.length ());
+    zmq_assert (rc == 0);
+    char *msg_data = static_cast <char *> (msg_->data ());
+    memcpy (msg_data, "\5ERROR", 6);
+    msg_data [6] = status_code.length ();
+    memcpy (msg_data + 7, status_code.c_str (), status_code.length ());
+    return 0;
+}
+
+void zmq::plain_server_t::send_zap_request (const std::string &username,
+                                            const std::string &password)
+{
+    int rc;
+    msg_t msg;
+
+    //  Address delimiter frame
+    rc = msg.init ();
+    errno_assert (rc == 0);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Version frame
+    rc = msg.init_size (3);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), "1.0", 3);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Request id frame
+    rc = msg.init_size (1);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), "1", 1);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Domain frame
+    rc = msg.init_size (options.zap_domain.length ());
+    errno_assert (rc == 0);
+    memcpy (msg.data (), options.zap_domain.c_str (), options.zap_domain.length ());
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Address frame
+    rc = msg.init_size (peer_address.length ());
+    errno_assert (rc == 0);
+    memcpy (msg.data (), peer_address.c_str (), peer_address.length ());
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Identity frame
+    rc = msg.init_size (options.identity_size);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), options.identity, options.identity_size);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Mechanism frame
+    rc = msg.init_size (5);
+    errno_assert (rc == 0);
+    memcpy (msg.data (), "PLAIN", 5);
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Username frame
+    rc = msg.init_size (username.length ());
+    errno_assert (rc == 0);
+    memcpy (msg.data (), username.c_str (), username.length ());
+    msg.set_flags (msg_t::more);
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+
+    //  Password frame
+    rc = msg.init_size (password.length ());
+    errno_assert (rc == 0);
+    memcpy (msg.data (), password.c_str (), password.length ());
+    rc = session->write_zap_msg (&msg);
+    errno_assert (rc == 0);
+}
+
+int zmq::plain_server_t::receive_and_process_zap_reply ()
+{
+    int rc = 0;
+    msg_t msg [7];  //  ZAP reply consists of 7 frames
+
+    //  Initialize all reply frames
+    for (int i = 0; i < 7; i++) {
+        rc = msg [i].init ();
+        errno_assert (rc == 0);
+    }
+
+    for (int i = 0; i < 7; i++) {
+        rc = session->read_zap_msg (&msg [i]);
+        if (rc == -1)
+            break;
+        if ((msg [i].flags () & msg_t::more) == (i < 6? 0: msg_t::more)) {
+            //  Temporary support for security debugging
+            puts ("PLAIN I: ZAP handler sent incomplete reply message");
+            errno = EPROTO;
+            rc = -1;
+            break;
+        }
+    }
+
+    if (rc != 0)
+        goto error;
+
+    //  Address delimiter frame
+    if (msg [0].size () > 0) {
+        //  Temporary support for security debugging
+        puts ("PLAIN I: ZAP handler sent malformed reply message");
+        errno = EPROTO;
+        rc = -1;
+        goto error;
+    }
+
+    //  Version frame
+    if (msg [1].size () != 3 || memcmp (msg [1].data (), "1.0", 3)) {
+        //  Temporary support for security debugging
+        puts ("PLAIN I: ZAP handler sent bad version number");
+        errno = EPROTO;
+        rc = -1;
+        goto error;
+    }
+
+    //  Request id frame
+    if (msg [2].size () != 1 || memcmp (msg [2].data (), "1", 1)) {
+        //  Temporary support for security debugging
+        puts ("PLAIN I: ZAP handler sent bad request ID");
+        rc = -1;
+        errno = EPROTO;
+        goto error;
+    }
+
+    //  Status code frame
+    if (msg [3].size () != 3) {
+        //  Temporary support for security debugging
+        puts ("PLAIN I: ZAP handler rejected client authentication");
+        errno = EACCES;
+        rc = -1;
+        goto error;
+    }
+
+    //  Save status code
+    status_code.assign (static_cast <char *> (msg [3].data ()), 3);
+
+    //  Save user id
+    set_user_id (msg [5].data (), msg [5].size ());
+
+    //  Process metadata frame
+    rc = parse_metadata (static_cast <const unsigned char*> (msg [6].data ()),
+                         msg [6].size (), true);
+
+error:
+    for (int i = 0; i < 7; i++) {
+        const int rc2 = msg [i].close ();
+        errno_assert (rc2 == 0);
+    }
+
+    return rc;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/plain_server.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/plain_server.hpp
new file mode 100644
index 00000000..6cde4c71
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/plain_server.hpp
@@ -0,0 +1,93 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_PLAIN_SERVER_HPP_INCLUDED__
+#define __ZMQ_PLAIN_SERVER_HPP_INCLUDED__
+
+#include "mechanism.hpp"
+#include "options.hpp"
+
+namespace zmq
+{
+
+    class msg_t;
+    class session_base_t;
+
+    class plain_server_t : public mechanism_t
+    {
+    public:
+
+        plain_server_t (session_base_t *session_,
+                        const std::string &peer_address_,
+                        const options_t &options_);
+        virtual ~plain_server_t ();
+
+        // mechanism implementation
+        virtual int next_handshake_command (msg_t *msg_);
+        virtual int process_handshake_command (msg_t *msg_);
+        virtual int zap_msg_available ();
+        virtual status_t status () const;
+
+    private:
+
+        enum state_t {
+            waiting_for_hello,
+            sending_welcome,
+            waiting_for_initiate,
+            sending_ready,
+            waiting_for_zap_reply,
+            sending_error,
+            error_command_sent,
+            ready
+        };
+
+        session_base_t * const session;
+
+        const std::string peer_address;
+
+        //  Status code as received from ZAP handler
+        std::string status_code;
+
+        state_t state;
+
+        int produce_welcome (msg_t *msg_) const;
+        int produce_ready (msg_t *msg_) const;
+        int produce_error (msg_t *msg_) const;
+
+        int process_hello (msg_t *msg_);
+        int process_initiate (msg_t *msg_);
+
+        void send_zap_request (const std::string &username,
+                               const std::string &password);
+        int receive_and_process_zap_reply ();
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/platform.hpp.in b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/platform.hpp.in
new file mode 100644
index 00000000..f7fcde39
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/platform.hpp.in
@@ -0,0 +1,296 @@
+/* src/platform.hpp.in.  Generated from configure.ac by autoheader.  */
+
+/* Define to 1 if you have the <alloca.h> header file. */
+#undef HAVE_ALLOCA_H
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#undef HAVE_ARPA_INET_H
+
+/* Define to 1 if you have the `clock_gettime' function. */
+#undef HAVE_CLOCK_GETTIME
+
+/* Define to 1 if you have the declaration of `LOCAL_PEERCRED', and to 0 if
+   you don't. */
+#undef HAVE_DECL_LOCAL_PEERCRED
+
+/* Define to 1 if you have the declaration of `SO_PEERCRED', and to 0 if you
+   don't. */
+#undef HAVE_DECL_SO_PEERCRED
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#undef HAVE_DLFCN_H
+
+/* Define to 1 if you have the <errno.h> header file. */
+#undef HAVE_ERRNO_H
+
+/* Define to 1 if you have the `fork' function. */
+#undef HAVE_FORK
+
+/* Define to 1 if you have the `freeifaddrs' function. */
+#undef HAVE_FREEIFADDRS
+
+/* Define to 1 if you have the `gethrtime' function. */
+#undef HAVE_GETHRTIME
+
+/* Define to 1 if you have the `getifaddrs' function. */
+#undef HAVE_GETIFADDRS
+
+/* Define to 1 if you have the `gettimeofday' function. */
+#undef HAVE_GETTIMEOFDAY
+
+/* Define to 1 if you have the <ifaddrs.h> header file. */
+#undef HAVE_IFADDRS_H
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the `gssapi_krb5' library (-lgssapi_krb5). */
+#undef HAVE_LIBGSSAPI_KRB5
+
+/* Define to 1 if you have the `iphlpapi' library (-liphlpapi). */
+#undef HAVE_LIBIPHLPAPI
+
+/* Define to 1 if you have the `nsl' library (-lnsl). */
+#undef HAVE_LIBNSL
+
+/* Define to 1 if you have the `pthread' library (-lpthread). */
+#undef HAVE_LIBPTHREAD
+
+/* Define to 1 if you have the `rpcrt4' library (-lrpcrt4). */
+#undef HAVE_LIBRPCRT4
+
+/* Define to 1 if you have the `rt' library (-lrt). */
+#undef HAVE_LIBRT
+
+/* Define to 1 if you have the `socket' library (-lsocket). */
+#undef HAVE_LIBSOCKET
+
+/* The libsodium library is to be used. */
+#undef HAVE_LIBSODIUM
+
+/* Define to 1 if you have the `ws2_32' library (-lws2_32). */
+#undef HAVE_LIBWS2_32
+
+/* Define to 1 if you have the <limits.h> header file. */
+#undef HAVE_LIMITS_H
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have the `memset' function. */
+#undef HAVE_MEMSET
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#undef HAVE_NETINET_IN_H
+
+/* Define to 1 if you have the <netinet/tcp.h> header file. */
+#undef HAVE_NETINET_TCP_H
+
+/* Define to 1 if you have the `perror' function. */
+#undef HAVE_PERROR
+
+/* Define to 1 if you have the `socket' function. */
+#undef HAVE_SOCKET
+
+/* Define to 1 if stdbool.h conforms to C99. */
+#undef HAVE_STDBOOL_H
+
+/* Define to 1 if you have the <stddef.h> header file. */
+#undef HAVE_STDDEF_H
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the <sys/eventfd.h> header file. */
+#undef HAVE_SYS_EVENTFD_H
+
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#undef HAVE_SYS_SOCKET_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#undef HAVE_SYS_TIME_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <sys/uio.h> header file. */
+#undef HAVE_SYS_UIO_H
+
+/* Define to 1 if you have the <time.h> header file. */
+#undef HAVE_TIME_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Define to 1 if you have the <windows.h> header file. */
+#undef HAVE_WINDOWS_H
+
+/* Define to 1 if the system has the type `_Bool'. */
+#undef HAVE__BOOL
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+   */
+#undef LT_OBJDIR
+
+/* Define to 1 if your C compiler doesn't accept -c and -o together. */
+#undef NO_MINUS_C_MINUS_O
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* Define as the return type of signal handlers (`int' or `void'). */
+#undef RETSIGTYPE
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
+#undef TIME_WITH_SYS_TIME
+
+/* Version number of package */
+#undef VERSION
+
+/* Enable militant API assertions */
+#undef ZMQ_ACT_MILITANT
+
+/* Force to use mutexes */
+#undef ZMQ_FORCE_MUTEXES
+
+/* Have AIX OS */
+#undef ZMQ_HAVE_AIX
+
+/* Have Android OS */
+#undef ZMQ_HAVE_ANDROID
+
+/* Have Cygwin */
+#undef ZMQ_HAVE_CYGWIN
+
+/* Have eventfd extension. */
+#undef ZMQ_HAVE_EVENTFD
+
+/* Have FreeBSD OS */
+#undef ZMQ_HAVE_FREEBSD
+
+/* Have HPUX OS */
+#undef ZMQ_HAVE_HPUX
+
+/* Have ifaddrs.h header. */
+#undef ZMQ_HAVE_IFADDRS
+
+/* Have Linux OS */
+#undef ZMQ_HAVE_LINUX
+
+/* Have LOCAL_PEERCRED socket option */
+#undef ZMQ_HAVE_LOCAL_PEERCRED
+
+/* Have MinGW32 */
+#undef ZMQ_HAVE_MINGW32
+
+/* Have NetBSD OS */
+#undef ZMQ_HAVE_NETBSD
+
+/* Have NORM protocol extension */
+#undef ZMQ_HAVE_NORM
+
+/* Have OpenBSD OS */
+#undef ZMQ_HAVE_OPENBSD
+
+/* Have OpenPGM extension */
+#undef ZMQ_HAVE_OPENPGM
+
+/* Have DarwinOSX OS */
+#undef ZMQ_HAVE_OSX
+
+/* Have QNX Neutrino OS */
+#undef ZMQ_HAVE_QNXNTO
+
+/* Whether SOCK_CLOEXEC is defined and functioning. */
+#undef ZMQ_HAVE_SOCK_CLOEXEC
+
+/* Have Solaris OS */
+#undef ZMQ_HAVE_SOLARIS
+
+/* Whether SO_KEEPALIVE is supported. */
+#undef ZMQ_HAVE_SO_KEEPALIVE
+
+/* Have SO_PEERCRED socket option */
+#undef ZMQ_HAVE_SO_PEERCRED
+
+/* Whether TCP_KEEPALIVE is supported. */
+#undef ZMQ_HAVE_TCP_KEEPALIVE
+
+/* Whether TCP_KEEPCNT is supported. */
+#undef ZMQ_HAVE_TCP_KEEPCNT
+
+/* Whether TCP_KEEPIDLE is supported. */
+#undef ZMQ_HAVE_TCP_KEEPIDLE
+
+/* Whether TCP_KEEPINTVL is supported. */
+#undef ZMQ_HAVE_TCP_KEEPINTVL
+
+/* Have TIPC support */
+#undef ZMQ_HAVE_TIPC
+
+/* Have uio.h header. */
+#undef ZMQ_HAVE_UIO
+
+/* Have Windows OS */
+#undef ZMQ_HAVE_WINDOWS
+
+/* Define for Solaris 2.5.1 so the uint32_t typedef from <sys/synch.h>,
+   <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
+   #define below would cause a syntax error. */
+#undef _UINT32_T
+
+/* Define to empty if `const' does not conform to ANSI C. */
+#undef const
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+   calls it, or to nothing if 'inline' is not supported under any name.  */
+#ifndef __cplusplus
+#undef inline
+#endif
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+#undef size_t
+
+/* Define to `int' if <sys/types.h> does not define. */
+#undef ssize_t
+
+/* Define to the type of an unsigned integer type of width exactly 32 bits if
+   such a type exists and the standard includes do not define it. */
+#undef uint32_t
+
+/* Define to empty if the keyword `volatile' does not work. Warning: valid
+   code using `volatile' can become incorrect without. Disable with care. */
+#undef volatile
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poll.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poll.cpp
new file mode 100644
index 00000000..74484e31
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poll.cpp
@@ -0,0 +1,190 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "poll.hpp"
+#if defined ZMQ_USE_POLL
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <poll.h>
+#include <algorithm>
+
+#include "poll.hpp"
+#include "err.hpp"
+#include "config.hpp"
+#include "i_poll_events.hpp"
+
+zmq::poll_t::poll_t (const zmq::ctx_t &ctx_) :
+    ctx(ctx_),
+    retired (false),
+    stopping (false)
+{
+}
+
+zmq::poll_t::~poll_t ()
+{
+    worker.stop ();
+}
+
+zmq::poll_t::handle_t zmq::poll_t::add_fd (fd_t fd_, i_poll_events *events_)
+{
+    //  If the file descriptor table is too small expand it.
+    fd_table_t::size_type sz = fd_table.size ();
+    if (sz <= (fd_table_t::size_type) fd_) {
+        fd_table.resize (fd_ + 1);
+        while (sz != (fd_table_t::size_type) (fd_ + 1)) {
+            fd_table [sz].index = retired_fd;
+            ++sz;
+        }
+    }
+
+    pollfd pfd = {fd_, 0, 0};
+    pollset.push_back (pfd);
+    zmq_assert (fd_table [fd_].index == retired_fd);
+
+    fd_table [fd_].index = pollset.size() - 1;
+    fd_table [fd_].events = events_;
+
+    //  Increase the load metric of the thread.
+    adjust_load (1);
+
+    return fd_;
+}
+
+void zmq::poll_t::rm_fd (handle_t handle_)
+{
+    fd_t index = fd_table [handle_].index;
+    zmq_assert (index != retired_fd);
+
+    //  Mark the fd as unused.
+    pollset [index].fd = retired_fd;
+    fd_table [handle_].index = retired_fd;
+    retired = true;
+
+    //  Decrease the load metric of the thread.
+    adjust_load (-1);
+}
+
+void zmq::poll_t::set_pollin (handle_t handle_)
+{
+    int index = fd_table [handle_].index;
+    pollset [index].events |= POLLIN;
+}
+
+void zmq::poll_t::reset_pollin (handle_t handle_)
+{
+    int index = fd_table [handle_].index;
+    pollset [index].events &= ~((short) POLLIN);
+}
+
+void zmq::poll_t::set_pollout (handle_t handle_)
+{
+    int index = fd_table [handle_].index;
+    pollset [index].events |= POLLOUT;
+}
+
+void zmq::poll_t::reset_pollout (handle_t handle_)
+{
+    int index = fd_table [handle_].index;
+    pollset [index].events &= ~((short) POLLOUT);
+}
+
+void zmq::poll_t::start ()
+{
+    ctx.start_thread (worker, worker_routine, this);
+}
+
+void zmq::poll_t::stop ()
+{
+    stopping = true;
+}
+
+int zmq::poll_t::max_fds ()
+{
+    return -1;
+}
+
+void zmq::poll_t::loop ()
+{
+    while (!stopping) {
+
+        //  Execute any due timers.
+        int timeout = (int) execute_timers ();
+
+        //  Wait for events.
+        int rc = poll (&pollset [0], pollset.size (), timeout ? timeout : -1);
+        if (rc == -1) {
+            errno_assert (errno == EINTR);
+            continue;
+        }
+
+        //  If there are no events (i.e. it's a timeout) there's no point
+        //  in checking the pollset.
+        if (rc == 0)
+            continue;
+
+        for (pollset_t::size_type i = 0; i != pollset.size (); i++) {
+
+            zmq_assert (!(pollset [i].revents & POLLNVAL));
+            if (pollset [i].fd == retired_fd)
+               continue;
+            if (pollset [i].revents & (POLLERR | POLLHUP))
+                fd_table [pollset [i].fd].events->in_event ();
+            if (pollset [i].fd == retired_fd)
+               continue;
+            if (pollset [i].revents & POLLOUT)
+                fd_table [pollset [i].fd].events->out_event ();
+            if (pollset [i].fd == retired_fd)
+               continue;
+            if (pollset [i].revents & POLLIN)
+                fd_table [pollset [i].fd].events->in_event ();
+        }
+
+        //  Clean up the pollset and update the fd_table accordingly.
+        if (retired) {
+            pollset_t::size_type i = 0;
+            while (i < pollset.size ()) {
+                if (pollset [i].fd == retired_fd)
+                    pollset.erase (pollset.begin () + i);
+                else {
+                    fd_table [pollset [i].fd].index = i;
+                    i ++;
+                }
+            }
+            retired = false;
+        }
+    }
+}
+
+void zmq::poll_t::worker_routine (void *arg_)
+{
+    ((poll_t*) arg_)->loop ();
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poll.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poll.hpp
new file mode 100644
index 00000000..227e51c7
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poll.hpp
@@ -0,0 +1,119 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_POLL_HPP_INCLUDED__
+#define __ZMQ_POLL_HPP_INCLUDED__
+
+//  poller.hpp decides which polling mechanism to use.
+#include "poller.hpp"
+#if defined ZMQ_USE_POLL
+
+#include <poll.h>
+#include <stddef.h>
+#include <vector>
+
+#include "ctx.hpp"
+#include "fd.hpp"
+#include "thread.hpp"
+#include "poller_base.hpp"
+
+namespace zmq
+{
+
+    struct i_poll_events;
+
+    //  Implements socket polling mechanism using the POSIX.1-2001
+    //  poll() system call.
+
+    class poll_t : public poller_base_t
+    {
+    public:
+
+        typedef fd_t handle_t;
+
+        poll_t (const ctx_t &ctx_);
+        ~poll_t ();
+
+        //  "poller" concept.
+        handle_t add_fd (fd_t fd_, zmq::i_poll_events *events_);
+        void rm_fd (handle_t handle_);
+        void set_pollin (handle_t handle_);
+        void reset_pollin (handle_t handle_);
+        void set_pollout (handle_t handle_);
+        void reset_pollout (handle_t handle_);
+        void start ();
+        void stop ();
+
+        static int max_fds ();
+
+    private:
+
+        //  Main worker thread routine.
+        static void worker_routine (void *arg_);
+
+        //  Main event loop.
+        void loop ();
+
+        // Reference to ZMQ context.
+        const ctx_t &ctx;
+
+        struct fd_entry_t
+        {
+            fd_t index;
+            zmq::i_poll_events *events;
+        };
+
+        //  This table stores data for registered descriptors.
+        typedef std::vector <fd_entry_t> fd_table_t;
+        fd_table_t fd_table;
+
+        //  Pollset to pass to the poll function.
+        typedef std::vector <pollfd> pollset_t;
+        pollset_t pollset;
+
+        //  If true, there's at least one retired event source.
+        bool retired;
+
+        //  If true, thread is in the process of shutting down.
+        bool stopping;
+
+        //  Handle of the physical thread doing the I/O work.
+        thread_t worker;
+
+        poll_t (const poll_t&);
+        const poll_t &operator = (const poll_t&);
+    };
+
+    typedef poll_t poller_t;
+
+}
+
+#endif
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poller.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poller.hpp
new file mode 100644
index 00000000..b91e551c
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poller.hpp
@@ -0,0 +1,61 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_POLLER_HPP_INCLUDED__
+#define __ZMQ_POLLER_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if   defined ZMQ_USE_KQUEUE  + defined ZMQ_USE_EPOLL \
+    + defined ZMQ_USE_DEVPOLL + defined ZMQ_USE_POLL  \
+    + defined ZMQ_USE_SELECT > 1
+#error More than one of the ZMQ_USE_* macros defined
+#endif
+
+#if defined ZMQ_USE_KQUEUE
+#include "kqueue.hpp"
+#elif defined ZMQ_USE_EPOLL
+#include "epoll.hpp"
+#elif defined ZMQ_USE_DEVPOLL
+#include "devpoll.hpp"
+#elif defined ZMQ_USE_POLL
+#include "poll.hpp"
+#elif defined ZMQ_USE_SELECT
+#include "select.hpp"
+#else
+#error None of the ZMQ_USE_* macros defined
+#endif
+
+#if defined ZMQ_USE_SELECT
+#define ZMQ_POLL_BASED_ON_SELECT
+#else
+#define ZMQ_POLL_BASED_ON_POLL
+#endif
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poller_base.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poller_base.cpp
new file mode 100644
index 00000000..532d3072
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poller_base.cpp
@@ -0,0 +1,109 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "poller_base.hpp"
+#include "i_poll_events.hpp"
+#include "err.hpp"
+
+zmq::poller_base_t::poller_base_t ()
+{
+}
+
+zmq::poller_base_t::~poller_base_t ()
+{
+    //  Make sure there is no more load on the shutdown.
+    zmq_assert (get_load () == 0);
+}
+
+int zmq::poller_base_t::get_load ()
+{
+    return load.get ();
+}
+
+void zmq::poller_base_t::adjust_load (int amount_)
+{
+    if (amount_ > 0)
+        load.add (amount_);
+    else
+    if (amount_ < 0)
+        load.sub (-amount_);
+}
+
+void zmq::poller_base_t::add_timer (int timeout_, i_poll_events *sink_, int id_)
+{
+    uint64_t expiration = clock.now_ms () + timeout_;
+    timer_info_t info = {sink_, id_};
+    timers.insert (timers_t::value_type (expiration, info));
+}
+
+void zmq::poller_base_t::cancel_timer (i_poll_events *sink_, int id_)
+{
+    //  Complexity of this operation is O(n). We assume it is rarely used.
+    for (timers_t::iterator it = timers.begin (); it != timers.end (); ++it)
+        if (it->second.sink == sink_ && it->second.id == id_) {
+            timers.erase (it);
+            return;
+        }
+
+    //  Timer not found.
+    zmq_assert (false);
+}
+
+uint64_t zmq::poller_base_t::execute_timers ()
+{
+    //  Fast track.
+    if (timers.empty ())
+        return 0;
+
+    //  Get the current time.
+    uint64_t current = clock.now_ms ();
+
+    //   Execute the timers that are already due.
+    timers_t::iterator it = timers.begin ();
+    while (it != timers.end ()) {
+
+        //  If we have to wait to execute the item, same will be true about
+        //  all the following items (multimap is sorted). Thus we can stop
+        //  checking the subsequent timers and return the time to wait for
+        //  the next timer (at least 1ms).
+        if (it->first > current)
+            return it->first - current;
+
+        //  Trigger the timer.
+        it->second.sink->timer_event (it->second.id);
+
+        //  Remove it from the list of active timers.
+        timers_t::iterator o = it;
+        ++it;
+        timers.erase (o);
+    }
+
+    //  There are no more timers.
+    return 0;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poller_base.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poller_base.hpp
new file mode 100644
index 00000000..41720e38
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/poller_base.hpp
@@ -0,0 +1,95 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_POLLER_BASE_HPP_INCLUDED__
+#define __ZMQ_POLLER_BASE_HPP_INCLUDED__
+
+#include <map>
+
+#include "clock.hpp"
+#include "atomic_counter.hpp"
+
+namespace zmq
+{
+
+    struct i_poll_events;
+
+    class poller_base_t
+    {
+    public:
+
+        poller_base_t ();
+        virtual ~poller_base_t ();
+
+        //  Returns load of the poller. Note that this function can be
+        //  invoked from a different thread!
+        int get_load ();
+
+        //  Add a timeout to expire in timeout_ milliseconds. After the
+        //  expiration timer_event on sink_ object will be called with
+        //  argument set to id_.
+        void add_timer (int timeout_, zmq::i_poll_events *sink_, int id_);
+
+        //  Cancel the timer created by sink_ object with ID equal to id_.
+        void cancel_timer (zmq::i_poll_events *sink_, int id_);
+
+    protected:
+
+        //  Called by individual poller implementations to manage the load.
+        void adjust_load (int amount_);
+
+        //  Executes any timers that are due. Returns number of milliseconds
+        //  to wait to match the next timer or 0 meaning "no timers".
+        uint64_t execute_timers ();
+
+    private:
+
+        //  Clock instance private to this I/O thread.
+        clock_t clock;
+
+        //  List of active timers.
+        struct timer_info_t
+        {
+            zmq::i_poll_events *sink;
+            int id;
+        };
+        typedef std::multimap <uint64_t, timer_info_t> timers_t;
+        timers_t timers;
+
+        //  Load of the poller. Currently the number of file descriptors
+        //  registered.
+        atomic_counter_t load;
+
+        poller_base_t (const poller_base_t&);
+        const poller_base_t &operator = (const poller_base_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/precompiled.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/precompiled.cpp
new file mode 100644
index 00000000..7cd571dc
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/precompiled.cpp
@@ -0,0 +1,30 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "precompiled.hpp"
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/precompiled.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/precompiled.hpp
new file mode 100644
index 00000000..36447d21
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/precompiled.hpp
@@ -0,0 +1,56 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_PRECOMPILED_HPP_INCLUDED__
+#define __ZMQ_PRECOMPILED_HPP_INCLUDED__
+
+#ifdef _MSC_VER
+
+// Windows headers
+#include "platform.hpp"
+#include "windows.hpp"
+#include <fcntl.h>
+#include <intrin.h>
+#include <io.h>
+#include <rpc.h>
+#include <sys/stat.h>
+
+// standard C++ headers
+#include <algorithm>
+#include <map>
+#include <set>
+#include <string>
+#include <vector>
+
+// 0MQ definitions and exported functions
+#include "../include/zmq.h"
+
+#endif // _MSC_VER
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/proxy.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/proxy.cpp
new file mode 100644
index 00000000..6e05d8a8
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/proxy.cpp
@@ -0,0 +1,203 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stddef.h>
+#include "poller.hpp"
+#include "proxy.hpp"
+#include "likely.hpp"
+
+//  On AIX platform, poll.h has to be included first to get consistent
+//  definition of pollfd structure (AIX uses 'reqevents' and 'retnevents'
+//  instead of 'events' and 'revents' and defines macros to map from POSIX-y
+//  names to AIX-specific names).
+#if defined ZMQ_POLL_BASED_ON_POLL
+#include <poll.h>
+#endif
+
+// These headers end up pulling in zmq.h somewhere in their include
+// dependency chain
+#include "socket_base.hpp"
+#include "err.hpp"
+
+// zmq.h must be included *after* poll.h for AIX to build properly
+#include "../include/zmq.h"
+
+int capture(
+        class zmq::socket_base_t *capture_,
+        zmq::msg_t& msg_,
+        int more_ = 0)
+{
+    //  Copy message to capture socket if any
+    if (capture_) {
+        zmq::msg_t ctrl;
+        int rc = ctrl.init ();
+        if (unlikely (rc < 0))
+            return -1;
+        rc = ctrl.copy (msg_);
+        if (unlikely (rc < 0))
+            return -1;
+        rc = capture_->send (&ctrl, more_? ZMQ_SNDMORE: 0);
+        if (unlikely (rc < 0))
+            return -1;
+    }
+    return 0;
+}
+
+int forward(
+        class zmq::socket_base_t *from_,
+        class zmq::socket_base_t *to_,
+        class zmq::socket_base_t *capture_,
+        zmq::msg_t& msg_)
+{
+    int more;
+    size_t moresz;
+    while (true) {
+        int rc = from_->recv (&msg_, 0);
+        if (unlikely (rc < 0))
+            return -1;
+
+        moresz = sizeof more;
+        rc = from_->getsockopt (ZMQ_RCVMORE, &more, &moresz);
+        if (unlikely (rc < 0))
+            return -1;
+
+        //  Copy message to capture socket if any
+        rc = capture(capture_, msg_, more);
+        if (unlikely (rc < 0))
+            return -1;
+
+        rc = to_->send (&msg_, more? ZMQ_SNDMORE: 0);
+        if (unlikely (rc < 0))
+            return -1;
+        if (more == 0)
+            break;
+    }
+    return 0;
+}
+
+int zmq::proxy (
+    class socket_base_t *frontend_,
+    class socket_base_t *backend_,
+    class socket_base_t *capture_,
+    class socket_base_t *control_)
+{
+    msg_t msg;
+    int rc = msg.init ();
+    if (rc != 0)
+        return -1;
+
+    //  The algorithm below assumes ratio of requests and replies processed
+    //  under full load to be 1:1.
+
+    int more;
+    size_t moresz;
+    zmq_pollitem_t items [] = {
+        { frontend_, 0, ZMQ_POLLIN, 0 },
+        { backend_, 0, ZMQ_POLLIN, 0 },
+        { control_, 0, ZMQ_POLLIN, 0 }
+    };
+    int qt_poll_items = (control_ ? 3 : 2);
+    zmq_pollitem_t itemsout [] = {
+        { frontend_, 0, ZMQ_POLLOUT, 0 },
+        { backend_, 0, ZMQ_POLLOUT, 0 }
+    };
+
+    //  Proxy can be in these three states
+    enum {
+        active,
+        paused,
+        terminated
+    } state = active;
+
+    while (state != terminated) {
+        //  Wait while there are either requests or replies to process.
+        rc = zmq_poll (&items [0], qt_poll_items, -1);
+        if (unlikely (rc < 0))
+            return -1;
+
+        //  Get the pollout separately because when combining this with pollin it maxes the CPU
+        //  because pollout shall most of the time return directly.
+        //  POLLOUT is only checked when frontend and backend sockets are not the same.
+        if (frontend_ != backend_) {
+            rc = zmq_poll (&itemsout [0], 2, 0);
+            if (unlikely (rc < 0)) {
+                return -1;
+            }
+        }
+
+        //  Process a control command if any
+        if (control_ && items [2].revents & ZMQ_POLLIN) {
+            rc = control_->recv (&msg, 0);
+            if (unlikely (rc < 0))
+                return -1;
+
+            moresz = sizeof more;
+            rc = control_->getsockopt (ZMQ_RCVMORE, &more, &moresz);
+            if (unlikely (rc < 0) || more)
+                return -1;
+
+            //  Copy message to capture socket if any
+            rc = capture(capture_, msg);
+            if (unlikely (rc < 0))
+                return -1;
+
+            if (msg.size () == 5 && memcmp (msg.data (), "PAUSE", 5) == 0)
+                state = paused;
+            else
+            if (msg.size () == 6 && memcmp (msg.data (), "RESUME", 6) == 0)
+                state = active;
+            else
+            if (msg.size () == 9 && memcmp (msg.data (), "TERMINATE", 9) == 0)
+                state = terminated;
+            else {
+                //  This is an API error, we should assert
+                puts ("E: invalid command sent to proxy");
+                zmq_assert (false);
+            }
+        }
+        //  Process a request
+        if (state == active
+        &&  items [0].revents & ZMQ_POLLIN
+        &&  (frontend_ == backend_ || itemsout [1].revents & ZMQ_POLLOUT)) {
+            rc = forward(frontend_, backend_, capture_,msg);
+            if (unlikely (rc < 0))
+                return -1;
+        }
+        //  Process a reply
+        if (state == active
+        &&  frontend_ != backend_
+        &&  items [1].revents & ZMQ_POLLIN
+        &&  itemsout [0].revents & ZMQ_POLLOUT) {
+            rc = forward(backend_, frontend_, capture_,msg);
+            if (unlikely (rc < 0))
+                return -1;
+        }
+    }
+    return 0;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/proxy.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/proxy.hpp
new file mode 100644
index 00000000..14b056cd
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/proxy.hpp
@@ -0,0 +1,42 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_PROXY_HPP_INCLUDED__
+#define __ZMQ_PROXY_HPP_INCLUDED__
+
+namespace zmq
+{
+    int proxy (
+        class socket_base_t *frontend_,
+        class socket_base_t *backend_,
+        class socket_base_t *capture_,
+        class socket_base_t *control_ = NULL); // backward compatibility without this argument
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pub.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pub.cpp
new file mode 100644
index 00000000..7e6eee43
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pub.cpp
@@ -0,0 +1,66 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "pub.hpp"
+#include "pipe.hpp"
+#include "err.hpp"
+#include "msg.hpp"
+
+zmq::pub_t::pub_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
+    xpub_t (parent_, tid_, sid_)
+{
+    options.type = ZMQ_PUB;
+}
+
+zmq::pub_t::~pub_t ()
+{
+}
+
+void zmq::pub_t::xattach_pipe (pipe_t *pipe_, bool subscribe_to_all_)
+{
+    zmq_assert (pipe_);
+
+    //  Don't delay pipe termination as there is no one
+    //  to receive the delimiter.
+    pipe_->set_nodelay ();
+
+    xpub_t::xattach_pipe (pipe_, subscribe_to_all_);
+}
+
+int zmq::pub_t::xrecv (class msg_t *)
+{
+    //  Messages cannot be received from PUB socket.
+    errno = ENOTSUP;
+    return -1;
+}
+
+bool zmq::pub_t::xhas_in ()
+{
+    return false;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pub.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pub.hpp
new file mode 100644
index 00000000..4a70dcc2
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pub.hpp
@@ -0,0 +1,63 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_PUB_HPP_INCLUDED__
+#define __ZMQ_PUB_HPP_INCLUDED__
+
+#include "xpub.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class io_thread_t;
+    class socket_base_t;
+    class msg_t;
+
+    class pub_t : public xpub_t
+    {
+    public:
+
+        pub_t (zmq::ctx_t *parent_, uint32_t tid_, int sid_);
+        ~pub_t ();
+
+        //  Implementations of virtual functions from socket_base_t.
+        void xattach_pipe (zmq::pipe_t *pipe_, bool subscribe_to_all_ = false);
+        int xrecv (zmq::msg_t *msg_);
+        bool xhas_in ();
+
+    private:
+
+        pub_t (const pub_t&);
+        const pub_t &operator = (const pub_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pull.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pull.cpp
new file mode 100644
index 00000000..4754cda1
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pull.cpp
@@ -0,0 +1,77 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "pull.hpp"
+#include "err.hpp"
+#include "msg.hpp"
+#include "pipe.hpp"
+
+zmq::pull_t::pull_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
+    socket_base_t (parent_, tid_, sid_)
+{
+    options.type = ZMQ_PULL;
+}
+
+zmq::pull_t::~pull_t ()
+{
+}
+
+void zmq::pull_t::xattach_pipe (pipe_t *pipe_, bool subscribe_to_all_)
+{
+    // subscribe_to_all_ is unused
+    (void)subscribe_to_all_;
+
+    zmq_assert (pipe_);
+    fq.attach (pipe_);
+}
+
+void zmq::pull_t::xread_activated (pipe_t *pipe_)
+{
+    fq.activated (pipe_);
+}
+
+void zmq::pull_t::xpipe_terminated (pipe_t *pipe_)
+{
+    fq.pipe_terminated (pipe_);
+}
+
+int zmq::pull_t::xrecv (msg_t *msg_)
+{
+    return fq.recv (msg_);
+}
+
+bool zmq::pull_t::xhas_in ()
+{
+    return fq.has_in ();
+}
+
+zmq::blob_t zmq::pull_t::get_credential () const
+{
+    return fq.get_credential ();
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pull.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pull.hpp
new file mode 100644
index 00000000..6a2f953a
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/pull.hpp
@@ -0,0 +1,75 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_PULL_HPP_INCLUDED__
+#define __ZMQ_PULL_HPP_INCLUDED__
+
+#include "socket_base.hpp"
+#include "session_base.hpp"
+#include "fq.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class pipe_t;
+    class msg_t;
+    class io_thread_t;
+
+    class pull_t :
+        public socket_base_t
+    {
+    public:
+
+        pull_t (zmq::ctx_t *parent_, uint32_t tid_, int sid_);
+        ~pull_t ();
+
+    protected:
+
+        //  Overrides of functions from socket_base_t.
+        void xattach_pipe (zmq::pipe_t *pipe_, bool subscribe_to_all_);
+        int xrecv (zmq::msg_t *msg_);
+        bool xhas_in ();
+        blob_t get_credential () const;
+        void xread_activated (zmq::pipe_t *pipe_);
+        void xpipe_terminated (zmq::pipe_t *pipe_);
+
+    private:
+
+        //  Fair queueing object for inbound pipes.
+        fq_t fq;
+
+        pull_t (const pull_t&);
+        const pull_t &operator = (const pull_t&);
+
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/push.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/push.cpp
new file mode 100644
index 00000000..65fac5ff
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/push.cpp
@@ -0,0 +1,75 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "push.hpp"
+#include "pipe.hpp"
+#include "err.hpp"
+#include "msg.hpp"
+
+zmq::push_t::push_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
+    socket_base_t (parent_, tid_, sid_)
+{
+    options.type = ZMQ_PUSH;
+}
+
+zmq::push_t::~push_t ()
+{
+}
+
+void zmq::push_t::xattach_pipe (pipe_t *pipe_, bool subscribe_to_all_)
+{
+    // subscribe_to_all_ is unused
+    (void)subscribe_to_all_;
+    //  Don't delay pipe termination as there is no one
+    //  to receive the delimiter.
+    pipe_->set_nodelay ();
+
+    zmq_assert (pipe_);
+    lb.attach (pipe_);
+}
+
+void zmq::push_t::xwrite_activated (pipe_t *pipe_)
+{
+    lb.activated (pipe_);
+}
+
+void zmq::push_t::xpipe_terminated (pipe_t *pipe_)
+{
+    lb.pipe_terminated (pipe_);
+}
+
+int zmq::push_t::xsend (msg_t *msg_)
+{
+    return lb.send (msg_);
+}
+
+bool zmq::push_t::xhas_out ()
+{
+    return lb.has_out ();
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/push.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/push.hpp
new file mode 100644
index 00000000..238ce82f
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/push.hpp
@@ -0,0 +1,73 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_PUSH_HPP_INCLUDED__
+#define __ZMQ_PUSH_HPP_INCLUDED__
+
+#include "socket_base.hpp"
+#include "session_base.hpp"
+#include "lb.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class pipe_t;
+    class msg_t;
+    class io_thread_t;
+
+    class push_t :
+        public socket_base_t
+    {
+    public:
+
+        push_t (zmq::ctx_t *parent_, uint32_t tid_, int sid_);
+        ~push_t ();
+
+    protected:
+
+        //  Overrides of functions from socket_base_t.
+        void xattach_pipe (zmq::pipe_t *pipe_, bool subscribe_to_all_);
+        int xsend (zmq::msg_t *msg_);
+        bool xhas_out ();
+        void xwrite_activated (zmq::pipe_t *pipe_);
+        void xpipe_terminated (zmq::pipe_t *pipe_);
+
+    private:
+
+        //  Load balancer managing the outbound pipes.
+        lb_t lb;
+
+        push_t (const push_t&);
+        const push_t &operator = (const push_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/random.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/random.cpp
new file mode 100644
index 00000000..5c9932b6
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/random.cpp
@@ -0,0 +1,61 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdlib.h>
+
+#include "platform.hpp"
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <unistd.h>
+#endif
+
+#include "random.hpp"
+#include "stdint.hpp"
+#include "clock.hpp"
+
+void zmq::seed_random ()
+{
+#if defined ZMQ_HAVE_WINDOWS
+    int pid = (int) GetCurrentProcessId ();
+#else
+    int pid = (int) getpid ();
+#endif
+    srand ((unsigned int) (clock_t::now_us () + pid));
+}
+
+uint32_t zmq::generate_random ()
+{
+    //  Compensate for the fact that rand() returns signed integer.
+    uint32_t low = (uint32_t) rand ();
+    uint32_t high = (uint32_t) rand ();
+    high <<= (sizeof (int) * 8 - 1);
+    return high | low;
+}
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/random.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/random.hpp
new file mode 100644
index 00000000..bd47c611
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/random.hpp
@@ -0,0 +1,46 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_RANDOM_HPP_INCLUDED__
+#define __ZMQ_RANDOM_HPP_INCLUDED__
+
+#include "stdint.hpp"
+
+namespace zmq
+{
+
+    //  Seeds the random number generator.
+    void seed_random ();
+
+    //  Generates random value.
+    uint32_t generate_random ();
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/raw_decoder.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/raw_decoder.cpp
new file mode 100644
index 00000000..b98826cb
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/raw_decoder.cpp
@@ -0,0 +1,73 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "platform.hpp"
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include "raw_decoder.hpp"
+#include "err.hpp"
+
+zmq::raw_decoder_t::raw_decoder_t (size_t bufsize_) :
+    bufsize (bufsize_)
+{
+    int rc = in_progress.init ();
+    errno_assert (rc == 0);
+
+    buffer = (unsigned char *) malloc (bufsize);
+    alloc_assert (buffer);
+}
+
+zmq::raw_decoder_t::~raw_decoder_t ()
+{
+    int rc = in_progress.close ();
+    errno_assert (rc == 0);
+
+    free (buffer);
+}
+
+void zmq::raw_decoder_t::get_buffer (unsigned char **data_, size_t *size_)
+{
+    *data_ = buffer;
+    *size_ = bufsize;
+}
+
+int zmq::raw_decoder_t::decode (const uint8_t *data_, size_t size_,
+    size_t &bytes_used_)
+{
+    int rc = in_progress.init_size (size_);
+    errno_assert (rc != -1);
+    memcpy (in_progress.data (), data_, size_);
+    bytes_used_ = size_;
+    return 1;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/raw_decoder.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/raw_decoder.hpp
new file mode 100644
index 00000000..fc88add1
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/raw_decoder.hpp
@@ -0,0 +1,76 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_RAW_DECODER_HPP_INCLUDED__
+#define __ZMQ_RAW_DECODER_HPP_INCLUDED__
+
+#include "err.hpp"
+#include "msg.hpp"
+#include "i_decoder.hpp"
+#include "stdint.hpp"
+
+namespace zmq
+{
+
+    //  Decoder for 0MQ v1 framing protocol. Converts data stream into messages.
+
+    class raw_decoder_t : public i_decoder
+    {
+    public:
+
+        raw_decoder_t (size_t bufsize_);
+        virtual ~raw_decoder_t ();
+
+        //  i_decoder interface.
+
+        virtual void get_buffer (unsigned char **data_, size_t *size_);
+
+        virtual int decode (const unsigned char *data_, size_t size_,
+                            size_t &processed);
+
+        virtual msg_t *msg () { return &in_progress; }
+
+
+    private:
+
+
+        msg_t in_progress;
+
+        const size_t bufsize;
+
+        unsigned char *buffer;
+
+        raw_decoder_t (const raw_decoder_t&);
+        void operator = (const raw_decoder_t&);
+    };
+
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/raw_encoder.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/raw_encoder.cpp
new file mode 100644
index 00000000..d0881aae
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/raw_encoder.cpp
@@ -0,0 +1,50 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "encoder.hpp"
+#include "raw_encoder.hpp"
+#include "likely.hpp"
+#include "wire.hpp"
+
+zmq::raw_encoder_t::raw_encoder_t (size_t bufsize_) :
+    encoder_base_t <raw_encoder_t> (bufsize_)
+{
+    //  Write 0 bytes to the batch and go to message_ready state.
+    next_step (NULL, 0, &raw_encoder_t::raw_message_ready, true);
+}
+
+zmq::raw_encoder_t::~raw_encoder_t ()
+{
+}
+
+void zmq::raw_encoder_t::raw_message_ready ()
+{
+    next_step (in_progress->data (), in_progress->size (),
+        &raw_encoder_t::raw_message_ready, true);
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/raw_encoder.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/raw_encoder.hpp
new file mode 100644
index 00000000..417cff4a
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/raw_encoder.hpp
@@ -0,0 +1,70 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_RAW_ENCODER_HPP_INCLUDED__
+#define __ZMQ_RAW_ENCODER_HPP_INCLUDED__
+
+#if defined(_MSC_VER)
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+#endif
+
+#include <stddef.h>
+#include <string.h>
+#include <stdlib.h>
+#include <algorithm>
+
+#include "err.hpp"
+#include "msg.hpp"
+#include "i_encoder.hpp"
+
+namespace zmq
+{
+
+    //  Encoder for 0MQ framing protocol. Converts messages into data batches.
+
+    class raw_encoder_t : public encoder_base_t <raw_encoder_t>
+    {
+    public:
+
+        raw_encoder_t (size_t bufsize_);
+        ~raw_encoder_t ();
+
+    private:
+
+        void raw_message_ready ();
+
+        raw_encoder_t (const raw_encoder_t&);
+        const raw_encoder_t &operator = (const raw_encoder_t&);
+    };
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/reaper.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/reaper.cpp
new file mode 100644
index 00000000..ea5f0c56
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/reaper.cpp
@@ -0,0 +1,137 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "reaper.hpp"
+#include "socket_base.hpp"
+#include "err.hpp"
+
+zmq::reaper_t::reaper_t (class ctx_t *ctx_, uint32_t tid_) :
+    object_t (ctx_, tid_),
+    sockets (0),
+    terminating (false)
+{
+    poller = new (std::nothrow) poller_t (*ctx_);
+    alloc_assert (poller);
+
+    mailbox_handle = poller->add_fd (mailbox.get_fd (), this);
+    poller->set_pollin (mailbox_handle);
+
+#ifdef HAVE_FORK
+    pid = getpid();
+#endif
+}
+
+zmq::reaper_t::~reaper_t ()
+{
+    delete poller;
+}
+
+zmq::mailbox_t *zmq::reaper_t::get_mailbox ()
+{
+    return &mailbox;
+}
+
+void zmq::reaper_t::start ()
+{
+    //  Start the thread.
+    poller->start ();
+}
+
+void zmq::reaper_t::stop ()
+{
+    send_stop ();
+}
+
+void zmq::reaper_t::in_event ()
+{
+    while (true) {
+#ifdef HAVE_FORK
+        if (unlikely(pid != getpid()))
+        {
+            //printf("zmq::reaper_t::in_event return in child process %d\n", (int)getpid());
+            return;
+        }
+#endif
+
+        //  Get the next command. If there is none, exit.
+        command_t cmd;
+        int rc = mailbox.recv (&cmd, 0);
+        if (rc != 0 && errno == EINTR)
+            continue;
+        if (rc != 0 && errno == EAGAIN)
+            break;
+        errno_assert (rc == 0);
+
+        //  Process the command.
+        cmd.destination->process_command (cmd);
+    }
+}
+
+void zmq::reaper_t::out_event ()
+{
+    zmq_assert (false);
+}
+
+void zmq::reaper_t::timer_event (int)
+{
+    zmq_assert (false);
+}
+
+void zmq::reaper_t::process_stop ()
+{
+    terminating = true;
+
+    //  If there are no sockets being reaped finish immediately.
+    if (!sockets) {
+        send_done ();
+        poller->rm_fd (mailbox_handle);
+        poller->stop ();
+    }
+}
+
+void zmq::reaper_t::process_reap (socket_base_t *socket_)
+{
+    //  Add the socket to the poller.
+    socket_->start_reaping (poller);
+
+    ++sockets;
+}
+
+void zmq::reaper_t::process_reaped ()
+{
+    --sockets;
+
+    //  If reaped was already asked to terminate and there are no more sockets,
+    //  finish immediately.
+    if (!sockets && terminating) {
+        send_done ();
+        poller->rm_fd (mailbox_handle);
+        poller->stop ();
+    }
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/reaper.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/reaper.hpp
new file mode 100644
index 00000000..25a6186f
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/reaper.hpp
@@ -0,0 +1,94 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_REAPER_HPP_INCLUDED__
+#define __ZMQ_REAPER_HPP_INCLUDED__
+
+#include "object.hpp"
+#include "mailbox.hpp"
+#include "poller.hpp"
+#include "i_poll_events.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class socket_base_t;
+
+    class reaper_t : public object_t, public i_poll_events
+    {
+    public:
+
+        reaper_t (zmq::ctx_t *ctx_, uint32_t tid_);
+        ~reaper_t ();
+
+        mailbox_t *get_mailbox ();
+
+        void start ();
+        void stop ();
+
+        //  i_poll_events implementation.
+        void in_event ();
+        void out_event ();
+        void timer_event (int id_);
+
+    private:
+
+        //  Command handlers.
+        void process_stop ();
+        void process_reap (zmq::socket_base_t *socket_);
+        void process_reaped ();
+
+        //  Reaper thread accesses incoming commands via this mailbox.
+        mailbox_t mailbox;
+
+        //  Handle associated with mailbox' file descriptor.
+        poller_t::handle_t mailbox_handle;
+
+        //  I/O multiplexing is performed using a poller object.
+        poller_t *poller;
+
+        //  Number of sockets being reaped at the moment.
+        int sockets;
+
+        //  If true, we were already asked to terminate.
+        bool terminating;
+
+        reaper_t (const reaper_t&);
+        const reaper_t &operator = (const reaper_t&);
+
+#ifdef HAVE_FORK
+        // the process that created this context. Used to detect forking.
+        pid_t pid;
+#endif
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/rep.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/rep.cpp
new file mode 100644
index 00000000..0efdec9c
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/rep.cpp
@@ -0,0 +1,133 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "rep.hpp"
+#include "err.hpp"
+#include "msg.hpp"
+
+zmq::rep_t::rep_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
+    router_t (parent_, tid_, sid_),
+    sending_reply (false),
+    request_begins (true)
+{
+    options.type = ZMQ_REP;
+}
+
+zmq::rep_t::~rep_t ()
+{
+}
+
+int zmq::rep_t::xsend (msg_t *msg_)
+{
+    //  If we are in the middle of receiving a request, we cannot send reply.
+    if (!sending_reply) {
+        errno = EFSM;
+        return -1;
+    }
+
+    bool more = msg_->flags () & msg_t::more ? true : false;
+
+    //  Push message to the reply pipe.
+    int rc = router_t::xsend (msg_);
+    if (rc != 0)
+        return rc;
+
+    //  If the reply is complete flip the FSM back to request receiving state.
+    if (!more)
+        sending_reply = false;
+
+    return 0;
+}
+
+int zmq::rep_t::xrecv (msg_t *msg_)
+{
+    //  If we are in middle of sending a reply, we cannot receive next request.
+    if (sending_reply) {
+        errno = EFSM;
+        return -1;
+    }
+
+    //  First thing to do when receiving a request is to copy all the labels
+    //  to the reply pipe.
+    if (request_begins) {
+        while (true) {
+            int rc = router_t::xrecv (msg_);
+            if (rc != 0)
+                return rc;
+
+            if ((msg_->flags () & msg_t::more)) {
+                //  Empty message part delimits the traceback stack.
+                bool bottom = (msg_->size () == 0);
+
+                //  Push it to the reply pipe.
+                rc = router_t::xsend (msg_);
+                errno_assert (rc == 0);
+
+                if (bottom)
+                    break;
+            }
+            else {
+                //  If the traceback stack is malformed, discard anything
+                //  already sent to pipe (we're at end of invalid message).
+                rc = router_t::rollback ();
+                errno_assert (rc == 0);
+            }
+        }
+        request_begins = false;
+    }
+
+    //  Get next message part to return to the user.
+    int rc = router_t::xrecv (msg_);
+    if (rc != 0)
+       return rc;
+
+    //  If whole request is read, flip the FSM to reply-sending state.
+    if (!(msg_->flags () & msg_t::more)) {
+        sending_reply = true;
+        request_begins = true;
+    }
+
+    return 0;
+}
+
+bool zmq::rep_t::xhas_in ()
+{
+    if (sending_reply)
+        return false;
+
+    return router_t::xhas_in ();
+}
+
+bool zmq::rep_t::xhas_out ()
+{
+    if (!sending_reply)
+        return false;
+
+    return router_t::xhas_out ();
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/rep.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/rep.hpp
new file mode 100644
index 00000000..177872e4
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/rep.hpp
@@ -0,0 +1,73 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_REP_HPP_INCLUDED__
+#define __ZMQ_REP_HPP_INCLUDED__
+
+#include "router.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class msg_t;
+    class io_thread_t;
+    class socket_base_t;
+
+    class rep_t : public router_t
+    {
+    public:
+
+        rep_t (zmq::ctx_t *parent_, uint32_t tid_, int sid);
+        ~rep_t ();
+
+        //  Overrides of functions from socket_base_t.
+        int xsend (zmq::msg_t *msg_);
+        int xrecv (zmq::msg_t *msg_);
+        bool xhas_in ();
+        bool xhas_out ();
+
+    private:
+
+        //  If true, we are in process of sending the reply. If false we are
+        //  in process of receiving a request.
+        bool sending_reply;
+
+        //  If true, we are starting to receive a request. The beginning
+        //  of the request is the backtrace stack.
+        bool request_begins;
+
+        rep_t (const rep_t&);
+        const rep_t &operator = (const rep_t&);
+
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/req.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/req.cpp
new file mode 100644
index 00000000..3a930349
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/req.cpp
@@ -0,0 +1,289 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "req.hpp"
+#include "err.hpp"
+#include "msg.hpp"
+#include "wire.hpp"
+#include "random.hpp"
+#include "likely.hpp"
+
+zmq::req_t::req_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
+    dealer_t (parent_, tid_, sid_),
+    receiving_reply (false),
+    message_begins (true),
+    reply_pipe (NULL),
+    request_id_frames_enabled (false),
+    request_id (generate_random()),
+    strict (true)
+{
+    options.type = ZMQ_REQ;
+}
+
+zmq::req_t::~req_t ()
+{
+}
+
+int zmq::req_t::xsend (msg_t *msg_)
+{
+    //  If we've sent a request and we still haven't got the reply,
+    //  we can't send another request unless the strict option is disabled.
+    if (receiving_reply) {
+        if (strict) {
+            errno = EFSM;
+            return -1;
+        }
+
+        if (reply_pipe)
+            reply_pipe->terminate (false);
+        receiving_reply = false;
+        message_begins = true;
+    }
+
+    //  First part of the request is the request identity.
+    if (message_begins) {
+        reply_pipe = NULL;
+
+        if (request_id_frames_enabled) {
+            request_id++;
+
+            msg_t id;
+            int rc = id.init_data (&request_id, sizeof (request_id), NULL, NULL);
+            errno_assert (rc == 0);
+            id.set_flags (msg_t::more);
+
+            rc = dealer_t::sendpipe (&id, &reply_pipe);
+            if (rc != 0)
+                return -1;
+        }
+
+        msg_t bottom;
+        int rc = bottom.init ();
+        errno_assert (rc == 0);
+        bottom.set_flags (msg_t::more);
+
+        rc = dealer_t::sendpipe (&bottom, &reply_pipe);
+        if (rc != 0)
+            return -1;
+        zmq_assert (reply_pipe);
+
+        message_begins = false;
+
+        // Eat all currently avaliable messages before the request is fully
+        // sent. This is done to avoid:
+        //   REQ sends request to A, A replies, B replies too.
+        //   A's reply was first and matches, that is used.
+        //   An hour later REQ sends a request to B. B's old reply is used.
+        msg_t drop;
+        while (true) {
+            rc = drop.init ();
+            errno_assert (rc == 0);
+            rc = dealer_t::xrecv (&drop);
+            if (rc != 0)
+                break;
+            drop.close ();
+        }
+    }
+
+    bool more = msg_->flags () & msg_t::more ? true : false;
+
+    int rc = dealer_t::xsend (msg_);
+    if (rc != 0)
+        return rc;
+
+    //  If the request was fully sent, flip the FSM into reply-receiving state.
+    if (!more) {
+        receiving_reply = true;
+        message_begins = true;
+    }
+
+    return 0;
+}
+
+int zmq::req_t::xrecv (msg_t *msg_)
+{
+    //  If request wasn't send, we can't wait for reply.
+    if (!receiving_reply) {
+        errno = EFSM;
+        return -1;
+    }
+
+    //  Skip messages until one with the right first frames is found.
+    while (message_begins) {
+        //  If enabled, the first frame must have the correct request_id.
+        if (request_id_frames_enabled) {
+            int rc = recv_reply_pipe (msg_);
+            if (rc != 0)
+                return rc;
+
+            if (unlikely (!(msg_->flags () & msg_t::more) ||
+                          msg_->size () != sizeof (request_id) ||
+                          *static_cast<uint32_t *> (msg_->data ()) != request_id)) {
+                //  Skip the remaining frames and try the next message
+                while (msg_->flags () & msg_t::more) {
+                    rc = recv_reply_pipe (msg_);
+                    errno_assert (rc == 0);
+                }
+                continue;
+            }
+        }
+
+        //  The next frame must be 0.
+        // TODO: Failing this check should also close the connection with the peer!
+        int rc = recv_reply_pipe (msg_);
+        if (rc != 0)
+            return rc;
+
+        if (unlikely (!(msg_->flags () & msg_t::more) || msg_->size () != 0)) {
+            //  Skip the remaining frames and try the next message
+            while (msg_->flags () & msg_t::more) {
+                rc = recv_reply_pipe (msg_);
+                errno_assert (rc == 0);
+            }
+            continue;
+        }
+
+        message_begins = false;
+    }
+
+    int rc = recv_reply_pipe (msg_);
+    if (rc != 0)
+        return rc;
+
+    //  If the reply is fully received, flip the FSM into request-sending state.
+    if (!(msg_->flags () & msg_t::more)) {
+        receiving_reply = false;
+        message_begins = true;
+    }
+
+    return 0;
+}
+
+bool zmq::req_t::xhas_in ()
+{
+    //  TODO: Duplicates should be removed here.
+
+    if (!receiving_reply)
+        return false;
+
+    return dealer_t::xhas_in ();
+}
+
+bool zmq::req_t::xhas_out ()
+{
+    if (receiving_reply)
+        return false;
+
+    return dealer_t::xhas_out ();
+}
+
+int zmq::req_t::xsetsockopt (int option_, const void *optval_, size_t optvallen_)
+{
+    bool is_int = (optvallen_ == sizeof (int));
+    int value = is_int? *((int *) optval_): 0;
+    switch (option_) {
+        case ZMQ_REQ_CORRELATE:
+            if (is_int && value >= 0) {
+                request_id_frames_enabled = (value != 0);
+                return 0;
+            }
+            break;
+
+        case ZMQ_REQ_RELAXED:
+            if (is_int && value >= 0) {
+                strict = (value == 0);
+                return 0;
+            }
+            break;
+
+        default:
+            break;
+    }
+
+    return dealer_t::xsetsockopt (option_, optval_, optvallen_);
+}
+
+void zmq::req_t::xpipe_terminated (pipe_t *pipe_)
+{
+    if (reply_pipe == pipe_)
+        reply_pipe = NULL;
+    dealer_t::xpipe_terminated (pipe_);
+}
+
+int zmq::req_t::recv_reply_pipe (msg_t *msg_)
+{
+    while (true) {
+        pipe_t *pipe = NULL;
+        int rc = dealer_t::recvpipe (msg_, &pipe);
+        if (rc != 0)
+            return rc;
+        if (!reply_pipe || pipe == reply_pipe)
+            return 0;
+    }
+}
+
+zmq::req_session_t::req_session_t (io_thread_t *io_thread_, bool connect_,
+      socket_base_t *socket_, const options_t &options_,
+      address_t *addr_) :
+    session_base_t (io_thread_, connect_, socket_, options_, addr_),
+    state (bottom)
+{
+}
+
+zmq::req_session_t::~req_session_t ()
+{
+}
+
+int zmq::req_session_t::push_msg (msg_t *msg_)
+{
+    switch (state) {
+    case bottom:
+        if (msg_->flags () == msg_t::more && msg_->size () == 0) {
+            state = body;
+            return session_base_t::push_msg (msg_);
+        }
+        break;
+    case body:
+        if (msg_->flags () == msg_t::more)
+            return session_base_t::push_msg (msg_);
+        if (msg_->flags () == 0) {
+            state = bottom;
+            return session_base_t::push_msg (msg_);
+        }
+        break;
+    }
+    errno = EFAULT;
+    return -1;
+}
+
+void zmq::req_session_t::reset ()
+{
+    session_base_t::reset ();
+    state = bottom;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/req.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/req.hpp
new file mode 100644
index 00000000..66512cae
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/req.hpp
@@ -0,0 +1,120 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_REQ_HPP_INCLUDED__
+#define __ZMQ_REQ_HPP_INCLUDED__
+
+#include "dealer.hpp"
+#include "stdint.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class msg_t;
+    class io_thread_t;
+    class socket_base_t;
+
+    class req_t : public dealer_t
+    {
+    public:
+
+        req_t (zmq::ctx_t *parent_, uint32_t tid_, int sid_);
+        ~req_t ();
+
+        //  Overrides of functions from socket_base_t.
+        int xsend (zmq::msg_t *msg_);
+        int xrecv (zmq::msg_t *msg_);
+        bool xhas_in ();
+        bool xhas_out ();
+        int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
+        void xpipe_terminated (zmq::pipe_t *pipe_);
+
+    protected:
+
+        //  Receive only from the pipe the request was sent to, discarding
+        //  frames from other pipes.
+        int recv_reply_pipe (zmq::msg_t *msg_);
+
+    private:
+
+        //  If true, request was already sent and reply wasn't received yet or
+        //  was raceived partially.
+        bool receiving_reply;
+
+        //  If true, we are starting to send/recv a message. The first part
+        //  of the message must be empty message part (backtrace stack bottom).
+        bool message_begins;
+
+        //  The pipe the request was sent to and where the reply is expected.
+        zmq::pipe_t *reply_pipe;
+
+        //  Whether request id frames shall be sent and expected.
+        bool request_id_frames_enabled;
+
+        //  The current request id. It is incremented every time before a new
+        //  request is sent.
+        uint32_t request_id;
+
+        //  If false, send() will reset its internal state and terminate the
+        //  reply_pipe's connection instead of failing if a previous request is
+        //  still pending.
+        bool strict;
+
+        req_t (const req_t&);
+        const req_t &operator = (const req_t&);
+    };
+
+    class req_session_t : public session_base_t
+    {
+    public:
+
+        req_session_t (zmq::io_thread_t *io_thread_, bool connect_,
+            zmq::socket_base_t *socket_, const options_t &options_,
+            address_t *addr_);
+        ~req_session_t ();
+
+        //  Overrides of the functions from session_base_t.
+        int push_msg (msg_t *msg_);
+        void reset ();
+
+    private:
+
+        enum {
+            bottom,
+            body
+        } state;
+
+        req_session_t (const req_session_t&);
+        const req_session_t &operator = (const req_session_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/router.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/router.cpp
new file mode 100644
index 00000000..fc46ae19
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/router.cpp
@@ -0,0 +1,479 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "router.hpp"
+#include "pipe.hpp"
+#include "wire.hpp"
+#include "random.hpp"
+#include "likely.hpp"
+#include "err.hpp"
+
+zmq::router_t::router_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
+    socket_base_t (parent_, tid_, sid_),
+    prefetched (false),
+    identity_sent (false),
+    more_in (false),
+    current_out (NULL),
+    more_out (false),
+    next_rid (generate_random ()),
+    mandatory (false),
+    //  raw_sock functionality in ROUTER is deprecated
+    raw_sock (false),
+    probe_router (false),
+    handover (false)
+{
+    options.type = ZMQ_ROUTER;
+    options.recv_identity = true;
+    options.raw_sock = false;
+
+    prefetched_id.init ();
+    prefetched_msg.init ();
+}
+
+zmq::router_t::~router_t ()
+{
+    zmq_assert (anonymous_pipes.empty ());;
+    zmq_assert (outpipes.empty ());
+    prefetched_id.close ();
+    prefetched_msg.close ();
+}
+
+void zmq::router_t::xattach_pipe (pipe_t *pipe_, bool subscribe_to_all_)
+{
+    // subscribe_to_all_ is unused
+    (void)subscribe_to_all_;
+
+    zmq_assert (pipe_);
+
+    if (probe_router) {
+        msg_t probe_msg_;
+        int rc = probe_msg_.init ();
+        errno_assert (rc == 0);
+
+        rc = pipe_->write (&probe_msg_);
+        // zmq_assert (rc) is not applicable here, since it is not a bug.
+        pipe_->flush ();
+
+        rc = probe_msg_.close ();
+        errno_assert (rc == 0);
+    }
+
+    bool identity_ok = identify_peer (pipe_);
+    if (identity_ok)
+        fq.attach (pipe_);
+    else
+        anonymous_pipes.insert (pipe_);
+}
+
+int zmq::router_t::xsetsockopt (int option_, const void *optval_,
+    size_t optvallen_)
+{
+    bool is_int = (optvallen_ == sizeof (int));
+    int value = is_int? *((int *) optval_): 0;
+
+    switch (option_) {
+        case ZMQ_CONNECT_RID:
+            if (optval_ && optvallen_) {
+                connect_rid.assign ((char *) optval_, optvallen_);
+                return 0;
+            }
+            break;
+        case ZMQ_ROUTER_RAW:
+            if (is_int && value >= 0) {
+                raw_sock = (value != 0);
+                if (raw_sock) {
+                    options.recv_identity = false;
+                    options.raw_sock = true;
+                }
+                return 0;
+            }
+            break;
+
+        case ZMQ_ROUTER_MANDATORY:
+            if (is_int && value >= 0) {
+                mandatory = (value != 0);
+                return 0;
+            }
+            break;
+
+        case ZMQ_PROBE_ROUTER:
+            if (is_int && value >= 0) {
+                probe_router = (value != 0);
+                return 0;
+            }
+            break;
+
+        case ZMQ_ROUTER_HANDOVER:
+            if (is_int && value >= 0) {
+                handover = (value != 0);
+                return 0;
+            }
+            break;
+
+        default:
+            break;
+    }
+    errno = EINVAL;
+    return -1;
+}
+
+
+void zmq::router_t::xpipe_terminated (pipe_t *pipe_)
+{
+    std::set <pipe_t*>::iterator it = anonymous_pipes.find (pipe_);
+    if (it != anonymous_pipes.end ())
+        anonymous_pipes.erase (it);
+    else {
+        outpipes_t::iterator it = outpipes.find (pipe_->get_identity ());
+        zmq_assert (it != outpipes.end ());
+        outpipes.erase (it);
+        fq.pipe_terminated (pipe_);
+        if (pipe_ == current_out)
+            current_out = NULL;
+    }
+}
+
+void zmq::router_t::xread_activated (pipe_t *pipe_)
+{
+    std::set <pipe_t*>::iterator it = anonymous_pipes.find (pipe_);
+    if (it == anonymous_pipes.end ())
+        fq.activated (pipe_);
+    else {
+        bool identity_ok = identify_peer (pipe_);
+        if (identity_ok) {
+            anonymous_pipes.erase (it);
+            fq.attach (pipe_);
+        }
+    }
+}
+
+void zmq::router_t::xwrite_activated (pipe_t *pipe_)
+{
+    outpipes_t::iterator it;
+    for (it = outpipes.begin (); it != outpipes.end (); ++it)
+        if (it->second.pipe == pipe_)
+            break;
+
+    zmq_assert (it != outpipes.end ());
+    zmq_assert (!it->second.active);
+    it->second.active = true;
+}
+
+int zmq::router_t::xsend (msg_t *msg_)
+{
+    //  If this is the first part of the message it's the ID of the
+    //  peer to send the message to.
+    if (!more_out) {
+        zmq_assert (!current_out);
+
+        //  If we have malformed message (prefix with no subsequent message)
+        //  then just silently ignore it.
+        //  TODO: The connections should be killed instead.
+        if (msg_->flags () & msg_t::more) {
+
+            more_out = true;
+
+            //  Find the pipe associated with the identity stored in the prefix.
+            //  If there's no such pipe just silently ignore the message, unless
+            //  router_mandatory is set.
+            blob_t identity ((unsigned char*) msg_->data (), msg_->size ());
+            outpipes_t::iterator it = outpipes.find (identity);
+
+            if (it != outpipes.end ()) {
+                current_out = it->second.pipe;
+                if (!current_out->check_write ()) {
+                    it->second.active = false;
+                    current_out = NULL;
+                    if (mandatory) {
+                        more_out = false;
+                        errno = EAGAIN;
+                        return -1;
+                    }
+                }
+            }
+            else
+            if (mandatory) {
+                more_out = false;
+                errno = EHOSTUNREACH;
+                return -1;
+            }
+        }
+
+        int rc = msg_->close ();
+        errno_assert (rc == 0);
+        rc = msg_->init ();
+        errno_assert (rc == 0);
+        return 0;
+    }
+
+    //  Ignore the MORE flag for raw-sock or assert?
+    if (options.raw_sock)
+        msg_->reset_flags (msg_t::more);
+
+    //  Check whether this is the last part of the message.
+    more_out = msg_->flags () & msg_t::more ? true : false;
+
+    //  Push the message into the pipe. If there's no out pipe, just drop it.
+    if (current_out) {
+
+        // Close the remote connection if user has asked to do so
+        // by sending zero length message.
+        // Pending messages in the pipe will be dropped (on receiving term- ack)
+        if (raw_sock && msg_->size() == 0) {
+            current_out->terminate (false);
+            int rc = msg_->close ();
+            errno_assert (rc == 0);
+            rc = msg_->init ();
+            errno_assert (rc == 0);
+            current_out = NULL;
+            return 0;
+        }
+
+        bool ok = current_out->write (msg_);
+        if (unlikely (!ok)) {
+            // Message failed to send - we must close it ourselves.
+            int rc = msg_->close ();
+            errno_assert (rc == 0);
+            current_out = NULL;
+        } else {
+          if (!more_out) {
+              current_out->flush ();
+              current_out = NULL;
+          }
+        }
+    }
+    else {
+        int rc = msg_->close ();
+        errno_assert (rc == 0);
+    }
+
+    //  Detach the message from the data buffer.
+    int rc = msg_->init ();
+    errno_assert (rc == 0);
+
+    return 0;
+}
+
+int zmq::router_t::xrecv (msg_t *msg_)
+{
+    if (prefetched) {
+        if (!identity_sent) {
+            int rc = msg_->move (prefetched_id);
+            errno_assert (rc == 0);
+            identity_sent = true;
+        }
+        else {
+            int rc = msg_->move (prefetched_msg);
+            errno_assert (rc == 0);
+            prefetched = false;
+        }
+        more_in = msg_->flags () & msg_t::more ? true : false;
+        return 0;
+    }
+
+    pipe_t *pipe = NULL;
+    int rc = fq.recvpipe (msg_, &pipe);
+
+    //  It's possible that we receive peer's identity. That happens
+    //  after reconnection. The current implementation assumes that
+    //  the peer always uses the same identity.
+    while (rc == 0 && msg_->is_identity ())
+        rc = fq.recvpipe (msg_, &pipe);
+
+    if (rc != 0)
+        return -1;
+
+    zmq_assert (pipe != NULL);
+
+    //  If we are in the middle of reading a message, just return the next part.
+    if (more_in)
+        more_in = msg_->flags () & msg_t::more ? true : false;
+    else {
+        //  We are at the beginning of a message.
+        //  Keep the message part we have in the prefetch buffer
+        //  and return the ID of the peer instead.
+        rc = prefetched_msg.move (*msg_);
+        errno_assert (rc == 0);
+        prefetched = true;
+
+        blob_t identity = pipe->get_identity ();
+        rc = msg_->init_size (identity.size ());
+        errno_assert (rc == 0);
+        memcpy (msg_->data (), identity.data (), identity.size ());
+        msg_->set_flags (msg_t::more);
+        identity_sent = true;
+    }
+
+    return 0;
+}
+
+int zmq::router_t::rollback (void)
+{
+    if (current_out) {
+        current_out->rollback ();
+        current_out = NULL;
+        more_out = false;
+    }
+    return 0;
+}
+
+bool zmq::router_t::xhas_in ()
+{
+    //  If we are in the middle of reading the messages, there are
+    //  definitely more parts available.
+    if (more_in)
+        return true;
+
+    //  We may already have a message pre-fetched.
+    if (prefetched)
+        return true;
+
+    //  Try to read the next message.
+    //  The message, if read, is kept in the pre-fetch buffer.
+    pipe_t *pipe = NULL;
+    int rc = fq.recvpipe (&prefetched_msg, &pipe);
+
+    //  It's possible that we receive peer's identity. That happens
+    //  after reconnection. The current implementation assumes that
+    //  the peer always uses the same identity.
+    //  TODO: handle the situation when the peer changes its identity.
+    while (rc == 0 && prefetched_msg.is_identity ())
+        rc = fq.recvpipe (&prefetched_msg, &pipe);
+
+    if (rc != 0)
+        return false;
+
+    zmq_assert (pipe != NULL);
+
+    blob_t identity = pipe->get_identity ();
+    rc = prefetched_id.init_size (identity.size ());
+    errno_assert (rc == 0);
+    memcpy (prefetched_id.data (), identity.data (), identity.size ());
+    prefetched_id.set_flags (msg_t::more);
+
+    prefetched = true;
+    identity_sent = false;
+
+    return true;
+}
+
+bool zmq::router_t::xhas_out ()
+{
+    //  In theory, ROUTER socket is always ready for writing. Whether actual
+    //  attempt to write succeeds depends on whitch pipe the message is going
+    //  to be routed to.
+    return true;
+}
+
+zmq::blob_t zmq::router_t::get_credential () const
+{
+    return fq.get_credential ();
+}
+
+bool zmq::router_t::identify_peer (pipe_t *pipe_)
+{
+    msg_t msg;
+    blob_t identity;
+    bool ok;
+
+    if (connect_rid.length()) {
+        identity = blob_t ((unsigned char*) connect_rid.c_str (),
+            connect_rid.length());
+        connect_rid.clear ();
+        outpipes_t::iterator it = outpipes.find (identity);
+        if (it != outpipes.end ())
+            zmq_assert(false); //  Not allowed to duplicate an existing rid
+    }
+    else
+    if (options.raw_sock) { //  Always assign identity for raw-socket
+        unsigned char buf [5];
+        buf [0] = 0;
+        put_uint32 (buf + 1, next_rid++);
+        identity = blob_t (buf, sizeof buf);
+    }
+    else
+    if (!options.raw_sock) {
+        //  Pick up handshake cases and also case where next identity is set
+        msg.init ();
+        ok = pipe_->read (&msg);
+        if (!ok)
+            return false;
+
+        if (msg.size () == 0) {
+            //  Fall back on the auto-generation
+            unsigned char buf [5];
+            buf [0] = 0;
+            put_uint32 (buf + 1, next_rid++);
+            identity = blob_t (buf, sizeof buf);
+            msg.close ();
+        }
+        else {
+            identity = blob_t ((unsigned char*) msg.data (), msg.size ());
+            outpipes_t::iterator it = outpipes.find (identity);
+            msg.close ();
+
+            if (it != outpipes.end ()) {
+                if (!handover)
+                    //  Ignore peers with duplicate ID
+                    return false;
+                else {
+                    //  We will allow the new connection to take over this
+                    //  identity. Temporarily assign a new identity to the
+                    //  existing pipe so we can terminate it asynchronously.
+                    unsigned char buf [5];
+                    buf [0] = 0;
+                    put_uint32 (buf + 1, next_rid++);
+                    blob_t new_identity = blob_t (buf, sizeof buf);
+
+                    it->second.pipe->set_identity (new_identity);
+                    outpipe_t existing_outpipe =
+                        {it->second.pipe, it->second.active};
+
+                    ok = outpipes.insert (outpipes_t::value_type (
+                        new_identity, existing_outpipe)).second;
+                    zmq_assert (ok);
+
+                    //  Remove the existing identity entry to allow the new
+                    //  connection to take the identity.
+                    outpipes.erase (it);
+
+                    existing_outpipe.pipe->terminate (true);
+                }
+            }
+        }
+    }
+
+    pipe_->set_identity (identity);
+    //  Add the record into output pipes lookup table
+    outpipe_t outpipe = {pipe_, true};
+    ok = outpipes.insert (outpipes_t::value_type (identity, outpipe)).second;
+    zmq_assert (ok);
+
+    return true;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/router.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/router.hpp
new file mode 100644
index 00000000..9877217f
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/router.hpp
@@ -0,0 +1,140 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_ROUTER_HPP_INCLUDED__
+#define __ZMQ_ROUTER_HPP_INCLUDED__
+
+#include <map>
+
+#include "socket_base.hpp"
+#include "session_base.hpp"
+#include "stdint.hpp"
+#include "blob.hpp"
+#include "msg.hpp"
+#include "fq.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class pipe_t;
+
+    //  TODO: This class uses O(n) scheduling. Rewrite it to use O(1) algorithm.
+    class router_t :
+        public socket_base_t
+    {
+    public:
+
+        router_t (zmq::ctx_t *parent_, uint32_t tid_, int sid);
+        ~router_t ();
+
+        //  Overrides of functions from socket_base_t.
+        void xattach_pipe (zmq::pipe_t *pipe_, bool subscribe_to_all_);
+        int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
+        int xsend (zmq::msg_t *msg_);
+        int xrecv (zmq::msg_t *msg_);
+        bool xhas_in ();
+        bool xhas_out ();
+        void xread_activated (zmq::pipe_t *pipe_);
+        void xwrite_activated (zmq::pipe_t *pipe_);
+        void xpipe_terminated (zmq::pipe_t *pipe_);
+
+    protected:
+
+        //  Rollback any message parts that were sent but not yet flushed.
+        int rollback ();
+        blob_t get_credential () const;
+
+    private:
+
+        //  Receive peer id and update lookup map
+        bool identify_peer (pipe_t *pipe_);
+
+        //  Fair queueing object for inbound pipes.
+        fq_t fq;
+
+        //  True iff there is a message held in the pre-fetch buffer.
+        bool prefetched;
+
+        //  If true, the receiver got the message part with
+        //  the peer's identity.
+        bool identity_sent;
+
+        //  Holds the prefetched identity.
+        msg_t prefetched_id;
+
+        //  Holds the prefetched message.
+        msg_t prefetched_msg;
+
+        //  If true, more incoming message parts are expected.
+        bool more_in;
+
+        struct outpipe_t
+        {
+            zmq::pipe_t *pipe;
+            bool active;
+        };
+
+        //  We keep a set of pipes that have not been identified yet.
+        std::set <pipe_t*> anonymous_pipes;
+
+        //  Outbound pipes indexed by the peer IDs.
+        typedef std::map <blob_t, outpipe_t> outpipes_t;
+        outpipes_t outpipes;
+
+        //  The pipe we are currently writing to.
+        zmq::pipe_t *current_out;
+
+        //  If true, more outgoing message parts are expected.
+        bool more_out;
+
+        //  Routing IDs are generated. It's a simple increment and wrap-over
+        //  algorithm. This value is the next ID to use (if not used already).
+        uint32_t next_rid;
+
+        // If true, report EAGAIN to the caller instead of silently dropping
+        // the message targeting an unknown peer.
+        bool mandatory;
+        bool raw_sock;
+
+        // if true, send an empty message to every connected router peer
+        bool probe_router;
+
+        // If true, the router will reassign an identity upon encountering a
+        // name collision. The new pipe will take the identity, the old pipe
+        // will be terminated.
+        bool handover;
+
+        router_t (const router_t&);
+        const router_t &operator = (const router_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/select.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/select.cpp
new file mode 100644
index 00000000..ec0d2e82
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/select.cpp
@@ -0,0 +1,234 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "select.hpp"
+#if defined ZMQ_USE_SELECT
+
+#include "platform.hpp"
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#elif defined ZMQ_HAVE_HPUX
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#elif defined ZMQ_HAVE_OPENVMS
+#include <sys/types.h>
+#include <sys/time.h>
+#else
+#include <sys/select.h>
+#endif
+
+#include <string.h>
+#include <algorithm>
+
+#include "err.hpp"
+#include "config.hpp"
+#include "i_poll_events.hpp"
+
+zmq::select_t::select_t (const zmq::ctx_t &ctx_) :
+    ctx(ctx_),
+    maxfd (retired_fd),
+    retired (false),
+    stopping (false)
+{
+    //  Clear file descriptor sets.
+    FD_ZERO (&source_set_in);
+    FD_ZERO (&source_set_out);
+    FD_ZERO (&source_set_err);
+}
+
+zmq::select_t::~select_t ()
+{
+    worker.stop ();
+}
+
+zmq::select_t::handle_t zmq::select_t::add_fd (fd_t fd_, i_poll_events *events_)
+{
+    //  Store the file descriptor.
+    fd_entry_t entry = {fd_, events_};
+    fds.push_back (entry);
+
+    //  Ensure we do not attempt to select () on more than FD_SETSIZE
+    //  file descriptors.
+    zmq_assert (fds.size () <= FD_SETSIZE);
+
+    //  Start polling on errors.
+    FD_SET (fd_, &source_set_err);
+
+    //  Adjust maxfd if necessary.
+    if (fd_ > maxfd)
+        maxfd = fd_;
+
+    //  Increase the load metric of the thread.
+    adjust_load (1);
+
+    return fd_;
+}
+
+void zmq::select_t::rm_fd (handle_t handle_)
+{
+    //  Mark the descriptor as retired.
+    fd_set_t::iterator it;
+    for (it = fds.begin (); it != fds.end (); ++it)
+        if (it->fd == handle_)
+            break;
+    zmq_assert (it != fds.end ());
+    it->fd = retired_fd;
+    retired = true;
+
+    //  Stop polling on the descriptor.
+    FD_CLR (handle_, &source_set_in);
+    FD_CLR (handle_, &source_set_out);
+    FD_CLR (handle_, &source_set_err);
+
+    //  Discard all events generated on this file descriptor.
+    FD_CLR (handle_, &readfds);
+    FD_CLR (handle_, &writefds);
+    FD_CLR (handle_, &exceptfds);
+
+    //  Adjust the maxfd attribute if we have removed the
+    //  highest-numbered file descriptor.
+    if (handle_ == maxfd) {
+        maxfd = retired_fd;
+        for (fd_set_t::iterator it = fds.begin (); it != fds.end (); ++it)
+            if (it->fd > maxfd)
+                maxfd = it->fd;
+    }
+
+    //  Decrease the load metric of the thread.
+    adjust_load (-1);
+}
+
+void zmq::select_t::set_pollin (handle_t handle_)
+{
+    FD_SET (handle_, &source_set_in);
+}
+
+void zmq::select_t::reset_pollin (handle_t handle_)
+{
+    FD_CLR (handle_, &source_set_in);
+}
+
+void zmq::select_t::set_pollout (handle_t handle_)
+{
+    FD_SET (handle_, &source_set_out);
+}
+
+void zmq::select_t::reset_pollout (handle_t handle_)
+{
+    FD_CLR (handle_, &source_set_out);
+}
+
+void zmq::select_t::start ()
+{
+    ctx.start_thread (worker, worker_routine, this);
+}
+
+void zmq::select_t::stop ()
+{
+    stopping = true;
+}
+
+int zmq::select_t::max_fds ()
+{
+    return FD_SETSIZE;
+}
+
+void zmq::select_t::loop ()
+{
+    while (!stopping) {
+
+        //  Execute any due timers.
+        int timeout = (int) execute_timers ();
+
+        //  Intialise the pollsets.
+        memcpy (&readfds, &source_set_in, sizeof source_set_in);
+        memcpy (&writefds, &source_set_out, sizeof source_set_out);
+        memcpy (&exceptfds, &source_set_err, sizeof source_set_err);
+
+        //  Wait for events.
+#ifdef ZMQ_HAVE_OSX
+        struct timeval tv = {(long) (timeout / 1000), timeout % 1000 * 1000};
+#else
+        struct timeval tv = {(long) (timeout / 1000),
+            (long) (timeout % 1000 * 1000)};
+#endif
+#ifdef ZMQ_HAVE_WINDOWS
+        int rc = select (0, &readfds, &writefds, &exceptfds,
+            timeout ? &tv : NULL);
+        wsa_assert (rc != SOCKET_ERROR);
+#else
+        int rc = select (maxfd + 1, &readfds, &writefds, &exceptfds,
+            timeout ? &tv : NULL);
+        if (rc == -1) {
+            errno_assert (errno == EINTR);
+            continue;
+        }
+#endif
+
+        //  If there are no events (i.e. it's a timeout) there's no point
+        //  in checking the pollset.
+        if (rc == 0)
+            continue;
+
+        for (fd_set_t::size_type i = 0; i < fds.size (); i ++) {
+            if (fds [i].fd == retired_fd)
+                continue;
+            if (FD_ISSET (fds [i].fd, &exceptfds))
+                fds [i].events->in_event ();
+            if (fds [i].fd == retired_fd)
+                continue;
+            if (FD_ISSET (fds [i].fd, &writefds))
+                fds [i].events->out_event ();
+            if (fds [i].fd == retired_fd)
+                continue;
+            if (FD_ISSET (fds [i].fd, &readfds))
+                fds [i].events->in_event ();
+        }
+
+        //  Destroy retired event sources.
+        if (retired) {
+            fds.erase (std::remove_if (fds.begin (), fds.end (),
+                zmq::select_t::is_retired_fd), fds.end ());
+            retired = false;
+        }
+    }
+}
+
+void zmq::select_t::worker_routine (void *arg_)
+{
+    ((select_t*) arg_)->loop ();
+}
+
+bool zmq::select_t::is_retired_fd (const fd_entry_t &entry)
+{
+    return (entry.fd == retired_fd);
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/select.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/select.hpp
new file mode 100644
index 00000000..0eb29ec9
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/select.hpp
@@ -0,0 +1,140 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_SELECT_HPP_INCLUDED__
+#define __ZMQ_SELECT_HPP_INCLUDED__
+
+//  poller.hpp decides which polling mechanism to use.
+#include "poller.hpp"
+#if defined ZMQ_USE_SELECT
+
+#include "platform.hpp"
+
+#include <stddef.h>
+#include <vector>
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include <winsock2.h>
+#elif defined ZMQ_HAVE_OPENVMS
+#include <sys/types.h>
+#include <sys/time.h>
+#else
+#include <sys/select.h>
+#endif
+
+#include "ctx.hpp"
+#include "fd.hpp"
+#include "thread.hpp"
+#include "poller_base.hpp"
+
+namespace zmq
+{
+
+    struct i_poll_events;
+
+    //  Implements socket polling mechanism using POSIX.1-2001 select()
+    //  function.
+
+    class select_t : public poller_base_t
+    {
+    public:
+
+        typedef fd_t handle_t;
+
+        select_t (const ctx_t &ctx_);
+        ~select_t ();
+
+        //  "poller" concept.
+        handle_t add_fd (fd_t fd_, zmq::i_poll_events *events_);
+        void rm_fd (handle_t handle_);
+        void set_pollin (handle_t handle_);
+        void reset_pollin (handle_t handle_);
+        void set_pollout (handle_t handle_);
+        void reset_pollout (handle_t handle_);
+        void start ();
+        void stop ();
+
+        static int max_fds ();
+
+    private:
+
+        //  Main worker thread routine.
+        static void worker_routine (void *arg_);
+
+        //  Main event loop.
+        void loop ();
+
+        // Reference to ZMQ context.
+        const ctx_t &ctx;
+
+        struct fd_entry_t
+        {
+            fd_t fd;
+            zmq::i_poll_events *events;
+        };
+
+        //  Checks if an fd_entry_t is retired.
+        static bool is_retired_fd (const fd_entry_t &entry);
+
+        //  Set of file descriptors that are used to retreive
+        //  information for fd_set.
+        typedef std::vector <fd_entry_t> fd_set_t;
+        fd_set_t fds;
+
+        fd_set source_set_in;
+        fd_set source_set_out;
+        fd_set source_set_err;
+
+        fd_set readfds;
+        fd_set writefds;
+        fd_set exceptfds;
+
+        //  Maximum file descriptor.
+        fd_t maxfd;
+
+        //  If true, at least one file descriptor has retired.
+        bool retired;
+
+        //  If true, thread is shutting down.
+        bool stopping;
+
+        //  Handle of the physical thread doing the I/O work.
+        thread_t worker;
+
+        select_t (const select_t&);
+        const select_t &operator = (const select_t&);
+    };
+
+    typedef select_t poller_t;
+
+}
+
+#endif
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/session_base.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/session_base.cpp
new file mode 100644
index 00000000..86bfd8ff
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/session_base.cpp
@@ -0,0 +1,627 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "session_base.hpp"
+#include "i_engine.hpp"
+#include "err.hpp"
+#include "pipe.hpp"
+#include "likely.hpp"
+#include "tcp_connecter.hpp"
+#include "ipc_connecter.hpp"
+#include "tipc_connecter.hpp"
+#include "socks_connecter.hpp"
+#include "pgm_sender.hpp"
+#include "pgm_receiver.hpp"
+#include "address.hpp"
+#include "norm_engine.hpp"
+
+#include "ctx.hpp"
+#include "req.hpp"
+
+zmq::session_base_t *zmq::session_base_t::create (class io_thread_t *io_thread_,
+    bool active_, class socket_base_t *socket_, const options_t &options_,
+    address_t *addr_)
+{
+    session_base_t *s = NULL;
+    switch (options_.type) {
+    case ZMQ_REQ:
+        s = new (std::nothrow) req_session_t (io_thread_, active_,
+            socket_, options_, addr_);
+        break;
+    case ZMQ_DEALER:
+    case ZMQ_REP:
+    case ZMQ_ROUTER:
+    case ZMQ_PUB:
+    case ZMQ_XPUB:
+    case ZMQ_SUB:
+    case ZMQ_XSUB:
+    case ZMQ_PUSH:
+    case ZMQ_PULL:
+    case ZMQ_PAIR:
+    case ZMQ_STREAM:
+        s = new (std::nothrow) session_base_t (io_thread_, active_,
+            socket_, options_, addr_);
+        break;
+    default:
+        errno = EINVAL;
+        return NULL;
+    }
+    alloc_assert (s);
+    return s;
+}
+
+zmq::session_base_t::session_base_t (class io_thread_t *io_thread_,
+      bool active_, class socket_base_t *socket_, const options_t &options_,
+      address_t *addr_) :
+    own_t (io_thread_, options_),
+    io_object_t (io_thread_),
+    active (active_),
+    pipe (NULL),
+    zap_pipe (NULL),
+    incomplete_in (false),
+    pending (false),
+    engine (NULL),
+    socket (socket_),
+    io_thread (io_thread_),
+    has_linger_timer (false),
+    addr (addr_)
+{
+}
+
+zmq::session_base_t::~session_base_t ()
+{
+    zmq_assert (!pipe);
+    zmq_assert (!zap_pipe);
+
+    //  If there's still a pending linger timer, remove it.
+    if (has_linger_timer) {
+        cancel_timer (linger_timer_id);
+        has_linger_timer = false;
+    }
+
+    //  Close the engine.
+    if (engine)
+        engine->terminate ();
+
+    delete addr;
+}
+
+void zmq::session_base_t::attach_pipe (pipe_t *pipe_)
+{
+    zmq_assert (!is_terminating ());
+    zmq_assert (!pipe);
+    zmq_assert (pipe_);
+    pipe = pipe_;
+    pipe->set_event_sink (this);
+}
+
+int zmq::session_base_t::pull_msg (msg_t *msg_)
+{
+    if (!pipe || !pipe->read (msg_)) {
+        errno = EAGAIN;
+        return -1;
+    }
+
+    incomplete_in = msg_->flags () & msg_t::more ? true : false;
+
+    return 0;
+}
+
+int zmq::session_base_t::push_msg (msg_t *msg_)
+{
+    if (pipe && pipe->write (msg_)) {
+        int rc = msg_->init ();
+        errno_assert (rc == 0);
+        return 0;
+    }
+
+    errno = EAGAIN;
+    return -1;
+}
+
+int zmq::session_base_t::read_zap_msg (msg_t *msg_)
+{
+    if (zap_pipe == NULL) {
+        errno = ENOTCONN;
+        return -1;
+    }
+
+    if (!zap_pipe->read (msg_)) {
+        errno = EAGAIN;
+        return -1;
+    }
+
+    return 0;
+}
+
+int zmq::session_base_t::write_zap_msg (msg_t *msg_)
+{
+    if (zap_pipe == NULL) {
+        errno = ENOTCONN;
+        return -1;
+    }
+
+    const bool ok = zap_pipe->write (msg_);
+    zmq_assert (ok);
+
+    if ((msg_->flags () & msg_t::more) == 0)
+        zap_pipe->flush ();
+
+    const int rc = msg_->init ();
+    errno_assert (rc == 0);
+    return 0;
+}
+
+void zmq::session_base_t::reset ()
+{
+}
+
+void zmq::session_base_t::flush ()
+{
+    if (pipe)
+        pipe->flush ();
+}
+
+void zmq::session_base_t::clean_pipes ()
+{
+    zmq_assert (pipe != NULL);
+
+    //  Get rid of half-processed messages in the out pipe. Flush any
+    //  unflushed messages upstream.
+    pipe->rollback ();
+    pipe->flush ();
+
+    //  Remove any half-read message from the in pipe.
+    while (incomplete_in) {
+        msg_t msg;
+        int rc = msg.init ();
+        errno_assert (rc == 0);
+        rc = pull_msg (&msg);
+        errno_assert (rc == 0);
+        rc = msg.close ();
+        errno_assert (rc == 0);
+    }
+}
+
+void zmq::session_base_t::pipe_terminated (pipe_t *pipe_)
+{
+    // Drop the reference to the deallocated pipe if required.
+    zmq_assert (pipe_ == pipe
+             || pipe_ == zap_pipe
+             || terminating_pipes.count (pipe_) == 1);
+
+    if (pipe_ == pipe) {
+        // If this is our current pipe, remove it
+        pipe = NULL;
+        if (has_linger_timer) {
+            cancel_timer (linger_timer_id);
+            has_linger_timer = false;
+        }
+    } else
+    if (pipe_ == zap_pipe)
+        zap_pipe = NULL;
+    else
+        // Remove the pipe from the detached pipes set
+        terminating_pipes.erase (pipe_);
+
+    if (!is_terminating () && options.raw_sock) {
+        if (engine) {
+            engine->terminate ();
+            engine = NULL;
+        }
+        terminate ();
+    }
+
+    //  If we are waiting for pending messages to be sent, at this point
+    //  we are sure that there will be no more messages and we can proceed
+    //  with termination safely.
+    if (pending && !pipe && !zap_pipe && terminating_pipes.empty ()) {
+        pending = false;
+        own_t::process_term (0);
+    }
+}
+
+void zmq::session_base_t::read_activated (pipe_t *pipe_)
+{
+    // Skip activating if we're detaching this pipe
+    if (unlikely (pipe_ != pipe && pipe_ != zap_pipe)) {
+        zmq_assert (terminating_pipes.count (pipe_) == 1);
+        return;
+    }
+
+    if (unlikely (engine == NULL)) {
+        pipe->check_read ();
+        return;
+    }
+
+    if (likely (pipe_ == pipe))
+        engine->restart_output ();
+    else
+        engine->zap_msg_available ();
+}
+
+void zmq::session_base_t::write_activated (pipe_t *pipe_)
+{
+    // Skip activating if we're detaching this pipe
+    if (pipe != pipe_) {
+        zmq_assert (terminating_pipes.count (pipe_) == 1);
+        return;
+    }
+
+    if (engine)
+        engine->restart_input ();
+}
+
+void zmq::session_base_t::hiccuped (pipe_t *)
+{
+    //  Hiccups are always sent from session to socket, not the other
+    //  way round.
+    zmq_assert (false);
+}
+
+zmq::socket_base_t *zmq::session_base_t::get_socket ()
+{
+    return socket;
+}
+
+void zmq::session_base_t::process_plug ()
+{
+    if (active)
+        start_connecting (false);
+}
+
+int zmq::session_base_t::zap_connect ()
+{
+    zmq_assert (zap_pipe == NULL);
+
+    endpoint_t peer = find_endpoint ("inproc://zeromq.zap.01");
+    if (peer.socket == NULL) {
+        errno = ECONNREFUSED;
+        return -1;
+    }
+    if (peer.options.type != ZMQ_REP
+    &&  peer.options.type != ZMQ_ROUTER) {
+        errno = ECONNREFUSED;
+        return -1;
+    }
+
+    //  Create a bi-directional pipe that will connect
+    //  session with zap socket.
+    object_t *parents [2] = {this, peer.socket};
+    pipe_t *new_pipes [2] = {NULL, NULL};
+    int hwms [2] = {0, 0};
+    bool conflates [2] = {false, false};
+    int rc = pipepair (parents, new_pipes, hwms, conflates);
+    errno_assert (rc == 0);
+
+    //  Attach local end of the pipe to this socket object.
+    zap_pipe = new_pipes [0];
+    zap_pipe->set_nodelay ();
+    zap_pipe->set_event_sink (this);
+
+    send_bind (peer.socket, new_pipes [1], false);
+
+    //  Send empty identity if required by the peer.
+    if (peer.options.recv_identity) {
+        msg_t id;
+        rc = id.init ();
+        errno_assert (rc == 0);
+        id.set_flags (msg_t::identity);
+        bool ok = zap_pipe->write (&id);
+        zmq_assert (ok);
+        zap_pipe->flush ();
+    }
+
+    return 0;
+}
+
+bool zmq::session_base_t::zap_enabled ()
+{
+    return (
+         options.mechanism != ZMQ_NULL ||
+        (options.mechanism == ZMQ_NULL && options.zap_domain.length() > 0)
+    );
+}
+
+void zmq::session_base_t::process_attach (i_engine *engine_)
+{
+    zmq_assert (engine_ != NULL);
+
+    //  Create the pipe if it does not exist yet.
+    if (!pipe && !is_terminating ()) {
+        object_t *parents [2] = {this, socket};
+        pipe_t *pipes [2] = {NULL, NULL};
+
+        bool conflate = options.conflate &&
+            (options.type == ZMQ_DEALER ||
+             options.type == ZMQ_PULL ||
+             options.type == ZMQ_PUSH ||
+             options.type == ZMQ_PUB ||
+             options.type == ZMQ_SUB);
+
+        int hwms [2] = {conflate? -1 : options.rcvhwm,
+            conflate? -1 : options.sndhwm};
+        bool conflates [2] = {conflate, conflate};
+        int rc = pipepair (parents, pipes, hwms, conflates);
+        errno_assert (rc == 0);
+
+        //  Plug the local end of the pipe.
+        pipes [0]->set_event_sink (this);
+
+        //  Remember the local end of the pipe.
+        zmq_assert (!pipe);
+        pipe = pipes [0];
+
+        //  Ask socket to plug into the remote end of the pipe.
+        send_bind (socket, pipes [1]);
+    }
+
+    //  Plug in the engine.
+    zmq_assert (!engine);
+    engine = engine_;
+    engine->plug (io_thread, this);
+}
+
+void zmq::session_base_t::engine_error (
+        zmq::stream_engine_t::error_reason_t reason)
+{
+    //  Engine is dead. Let's forget about it.
+    engine = NULL;
+
+    //  Remove any half-done messages from the pipes.
+    if (pipe)
+        clean_pipes ();
+
+    zmq_assert (reason == stream_engine_t::connection_error
+             || reason == stream_engine_t::timeout_error
+             || reason == stream_engine_t::protocol_error);
+
+    switch (reason) {
+        case stream_engine_t::timeout_error:
+        case stream_engine_t::connection_error:
+            if (active)
+                reconnect ();
+            else
+                terminate ();
+            break;
+        case stream_engine_t::protocol_error:
+            terminate ();
+            break;
+    }
+
+    //  Just in case there's only a delimiter in the pipe.
+    if (pipe)
+        pipe->check_read ();
+
+    if (zap_pipe)
+        zap_pipe->check_read ();
+}
+
+void zmq::session_base_t::process_term (int linger_)
+{
+    zmq_assert (!pending);
+
+    //  If the termination of the pipe happens before the term command is
+    //  delivered there's nothing much to do. We can proceed with the
+    //  standard termination immediately.
+    if (!pipe && !zap_pipe && terminating_pipes.empty ()) {
+        own_t::process_term (0);
+        return;
+    }
+
+    pending = true;
+
+    if (pipe != NULL) {
+        //  If there's finite linger value, delay the termination.
+        //  If linger is infinite (negative) we don't even have to set
+        //  the timer.
+        if (linger_ > 0) {
+            zmq_assert (!has_linger_timer);
+            add_timer (linger_, linger_timer_id);
+            has_linger_timer = true;
+        }
+
+        //  Start pipe termination process. Delay the termination till all messages
+        //  are processed in case the linger time is non-zero.
+        pipe->terminate (linger_ != 0);
+
+        //  TODO: Should this go into pipe_t::terminate ?
+        //  In case there's no engine and there's only delimiter in the
+        //  pipe it wouldn't be ever read. Thus we check for it explicitly.
+        pipe->check_read ();
+    }
+
+    if (zap_pipe != NULL)
+        zap_pipe->terminate (false);
+}
+
+void zmq::session_base_t::timer_event (int id_)
+{
+    //  Linger period expired. We can proceed with termination even though
+    //  there are still pending messages to be sent.
+    zmq_assert (id_ == linger_timer_id);
+    has_linger_timer = false;
+
+    //  Ask pipe to terminate even though there may be pending messages in it.
+    zmq_assert (pipe);
+    pipe->terminate (false);
+}
+
+void zmq::session_base_t::reconnect ()
+{
+    //  For delayed connect situations, terminate the pipe
+    //  and reestablish later on
+    if (pipe && options.immediate == 1
+        && addr->protocol != "pgm" && addr->protocol != "epgm"
+        && addr->protocol != "norm") {
+        pipe->hiccup ();
+        pipe->terminate (false);
+        terminating_pipes.insert (pipe);
+        pipe = NULL;
+    }
+
+    reset ();
+
+    //  Reconnect.
+    if (options.reconnect_ivl != -1)
+        start_connecting (true);
+
+    //  For subscriber sockets we hiccup the inbound pipe, which will cause
+    //  the socket object to resend all the subscriptions.
+    if (pipe && (options.type == ZMQ_SUB || options.type == ZMQ_XSUB))
+        pipe->hiccup ();
+}
+
+void zmq::session_base_t::start_connecting (bool wait_)
+{
+    zmq_assert (active);
+
+    //  Choose I/O thread to run connecter in. Given that we are already
+    //  running in an I/O thread, there must be at least one available.
+    io_thread_t *io_thread = choose_io_thread (options.affinity);
+    zmq_assert (io_thread);
+
+    //  Create the connecter object.
+
+    if (addr->protocol == "tcp") {
+        if (!options.socks_proxy_address.empty()) {
+            address_t *proxy_address = new (std::nothrow)
+                address_t ("tcp", options.socks_proxy_address);
+            alloc_assert (proxy_address);
+            socks_connecter_t *connecter =
+                new (std::nothrow) socks_connecter_t (
+                    io_thread, this, options, addr, proxy_address, wait_);
+            alloc_assert (connecter);
+            launch_child (connecter);
+        }
+        else {
+            tcp_connecter_t *connecter = new (std::nothrow)
+                tcp_connecter_t (io_thread, this, options, addr, wait_);
+            alloc_assert (connecter);
+            launch_child (connecter);
+        }
+        return;
+    }
+
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+    if (addr->protocol == "ipc") {
+        ipc_connecter_t *connecter = new (std::nothrow) ipc_connecter_t (
+            io_thread, this, options, addr, wait_);
+        alloc_assert (connecter);
+        launch_child (connecter);
+        return;
+    }
+#endif
+#if defined ZMQ_HAVE_TIPC
+    if (addr->protocol == "tipc") {
+        tipc_connecter_t *connecter = new (std::nothrow) tipc_connecter_t (
+            io_thread, this, options, addr, wait_);
+        alloc_assert (connecter);
+        launch_child (connecter);
+        return;
+    }
+#endif
+
+#ifdef ZMQ_HAVE_OPENPGM
+
+    //  Both PGM and EPGM transports are using the same infrastructure.
+    if (addr->protocol == "pgm" || addr->protocol == "epgm") {
+
+        zmq_assert (options.type == ZMQ_PUB || options.type == ZMQ_XPUB
+                 || options.type == ZMQ_SUB || options.type == ZMQ_XSUB);
+
+        //  For EPGM transport with UDP encapsulation of PGM is used.
+        bool const udp_encapsulation = addr->protocol == "epgm";
+
+        //  At this point we'll create message pipes to the session straight
+        //  away. There's no point in delaying it as no concept of 'connect'
+        //  exists with PGM anyway.
+        if (options.type == ZMQ_PUB || options.type == ZMQ_XPUB) {
+
+            //  PGM sender.
+            pgm_sender_t *pgm_sender = new (std::nothrow) pgm_sender_t (
+                io_thread, options);
+            alloc_assert (pgm_sender);
+
+            int rc = pgm_sender->init (udp_encapsulation, addr->address.c_str ());
+            errno_assert (rc == 0);
+
+            send_attach (this, pgm_sender);
+        }
+        else {
+
+            //  PGM receiver.
+            pgm_receiver_t *pgm_receiver = new (std::nothrow) pgm_receiver_t (
+                io_thread, options);
+            alloc_assert (pgm_receiver);
+
+            int rc = pgm_receiver->init (udp_encapsulation, addr->address.c_str ());
+            errno_assert (rc == 0);
+
+            send_attach (this, pgm_receiver);
+        }
+
+        return;
+    }
+#endif
+
+#ifdef ZMQ_HAVE_NORM
+    if (addr->protocol == "norm") {
+        //  At this point we'll create message pipes to the session straight
+        //  away. There's no point in delaying it as no concept of 'connect'
+        //  exists with NORM anyway.
+        if (options.type == ZMQ_PUB || options.type == ZMQ_XPUB) {
+
+            //  NORM sender.
+            norm_engine_t* norm_sender = new (std::nothrow) norm_engine_t(io_thread, options);
+            alloc_assert (norm_sender);
+
+            int rc = norm_sender->init (addr->address.c_str (), true, false);
+            errno_assert (rc == 0);
+
+            send_attach (this, norm_sender);
+        }
+        else {  // ZMQ_SUB or ZMQ_XSUB
+
+            //  NORM receiver.
+            norm_engine_t* norm_receiver = new (std::nothrow) norm_engine_t (io_thread, options);
+            alloc_assert (norm_receiver);
+
+            int rc = norm_receiver->init (addr->address.c_str (), false, true);
+            errno_assert (rc == 0);
+
+            send_attach (this, norm_receiver);
+        }
+        return;
+    }
+#endif // ZMQ_HAVE_NORM
+
+    zmq_assert (false);
+}
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/session_base.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/session_base.hpp
new file mode 100644
index 00000000..8730c271
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/session_base.hpp
@@ -0,0 +1,172 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_SESSION_BASE_HPP_INCLUDED__
+#define __ZMQ_SESSION_BASE_HPP_INCLUDED__
+
+#include <string>
+#include <stdarg.h>
+
+#include "own.hpp"
+#include "io_object.hpp"
+#include "pipe.hpp"
+#include "socket_base.hpp"
+#include "stream_engine.hpp"
+
+namespace zmq
+{
+
+    class pipe_t;
+    class io_thread_t;
+    class socket_base_t;
+    struct i_engine;
+    struct address_t;
+
+    class session_base_t :
+        public own_t,
+        public io_object_t,
+        public i_pipe_events
+    {
+    public:
+
+        //  Create a session of the particular type.
+        static session_base_t *create (zmq::io_thread_t *io_thread_,
+            bool active_, zmq::socket_base_t *socket_,
+            const options_t &options_, address_t *addr_);
+
+        //  To be used once only, when creating the session.
+        void attach_pipe (zmq::pipe_t *pipe_);
+
+        //  Following functions are the interface exposed towards the engine.
+        virtual void reset ();
+        void flush ();
+        void engine_error (zmq::stream_engine_t::error_reason_t reason);
+
+        //  i_pipe_events interface implementation.
+        void read_activated (zmq::pipe_t *pipe_);
+        void write_activated (zmq::pipe_t *pipe_);
+        void hiccuped (zmq::pipe_t *pipe_);
+        void pipe_terminated (zmq::pipe_t *pipe_);
+
+        //  Delivers a message. Returns 0 if successful; -1 otherwise.
+        //  The function takes ownership of the message.
+        int push_msg (msg_t *msg_);
+
+        int zap_connect ();
+        bool zap_enabled ();
+
+        //  Fetches a message. Returns 0 if successful; -1 otherwise.
+        //  The caller is responsible for freeing the message when no
+        //  longer used.
+        int pull_msg (msg_t *msg_);
+
+        //  Receives message from ZAP socket.
+        //  Returns 0 on success; -1 otherwise.
+        //  The caller is responsible for freeing the message.
+        int read_zap_msg (msg_t *msg_);
+
+        //  Sends message to ZAP socket.
+        //  Returns 0 on success; -1 otherwise.
+        //  The function takes ownership of the message.
+        int write_zap_msg (msg_t *msg_);
+
+        socket_base_t *get_socket ();
+
+    protected:
+
+        session_base_t (zmq::io_thread_t *io_thread_, bool active_,
+            zmq::socket_base_t *socket_, const options_t &options_,
+            address_t *addr_);
+        virtual ~session_base_t ();
+
+    private:
+
+        void start_connecting (bool wait_);
+
+        void reconnect ();
+
+        //  Handlers for incoming commands.
+        void process_plug ();
+        void process_attach (zmq::i_engine *engine_);
+        void process_term (int linger_);
+
+        //  i_poll_events handlers.
+        void timer_event (int id_);
+
+        //  Remove any half processed messages. Flush unflushed messages.
+        //  Call this function when engine disconnect to get rid of leftovers.
+        void clean_pipes ();
+
+        //  If true, this session (re)connects to the peer. Otherwise, it's
+        //  a transient session created by the listener.
+        const bool active;
+
+        //  Pipe connecting the session to its socket.
+        zmq::pipe_t *pipe;
+
+        //  Pipe used to exchange messages with ZAP socket.
+        zmq::pipe_t *zap_pipe;
+
+        //  This set is added to with pipes we are disconnecting, but haven't yet completed
+        std::set <pipe_t *> terminating_pipes;
+
+        //  This flag is true if the remainder of the message being processed
+        //  is still in the in pipe.
+        bool incomplete_in;
+
+        //  True if termination have been suspended to push the pending
+        //  messages to the network.
+        bool pending;
+
+        //  The protocol I/O engine connected to the session.
+        zmq::i_engine *engine;
+
+        //  The socket the session belongs to.
+        zmq::socket_base_t *socket;
+
+        //  I/O thread the session is living in. It will be used to plug in
+        //  the engines into the same thread.
+        zmq::io_thread_t *io_thread;
+
+        //  ID of the linger timer
+        enum {linger_timer_id = 0x20};
+
+        //  True is linger timer is running.
+        bool has_linger_timer;
+
+        //  Protocol and address to use when connecting.
+        address_t *addr;
+
+        session_base_t (const session_base_t&);
+        const session_base_t &operator = (const session_base_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/signaler.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/signaler.cpp
new file mode 100644
index 00000000..e6fa9833
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/signaler.cpp
@@ -0,0 +1,568 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "poller.hpp"
+
+//  On AIX, poll.h has to be included before zmq.h to get consistent
+//  definition of pollfd structure (AIX uses 'reqevents' and 'retnevents'
+//  instead of 'events' and 'revents' and defines macros to map from POSIX-y
+//  names to AIX-specific names).
+#if defined ZMQ_POLL_BASED_ON_POLL
+#include <poll.h>
+#elif defined ZMQ_POLL_BASED_ON_SELECT
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#elif defined ZMQ_HAVE_HPUX
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#elif defined ZMQ_HAVE_OPENVMS
+#include <sys/types.h>
+#include <sys/time.h>
+#else
+#include <sys/select.h>
+#endif
+#endif
+
+#include "signaler.hpp"
+#include "likely.hpp"
+#include "stdint.hpp"
+#include "config.hpp"
+#include "err.hpp"
+#include "fd.hpp"
+#include "ip.hpp"
+
+#if defined ZMQ_HAVE_EVENTFD
+#include <sys/eventfd.h>
+#endif
+
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <unistd.h>
+#include <netinet/tcp.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#endif
+
+#if !defined (ZMQ_HAVE_WINDOWS)
+// Helper to sleep for specific number of milliseconds (or until signal)
+//
+static int sleep_ms (unsigned int ms_)
+{
+    if (ms_ == 0)
+        return 0;
+#if defined ZMQ_HAVE_WINDOWS
+    Sleep (ms_ > 0 ? ms_ : INFINITE);
+    return 0;
+#elif defined ZMQ_HAVE_ANDROID
+    usleep (ms_ * 1000);
+    return 0;
+#else
+    return usleep (ms_ * 1000);
+#endif
+}
+
+// Helper to wait on close(), for non-blocking sockets, until it completes
+// If EAGAIN is received, will sleep briefly (1-100ms) then try again, until
+// the overall timeout is reached.
+//
+static int close_wait_ms (int fd_, unsigned int max_ms_ = 2000)
+{
+    unsigned int ms_so_far = 0;
+    unsigned int step_ms   = max_ms_ / 10;
+    if (step_ms < 1)
+        step_ms = 1;
+
+    if (step_ms > 100)
+        step_ms = 100;
+
+    int rc = 0;       // do not sleep on first attempt
+
+    do
+    {
+        if (rc == -1 && errno == EAGAIN)
+        {
+            sleep_ms (step_ms);
+            ms_so_far += step_ms;
+        }
+
+        rc = close (fd_);
+    } while (ms_so_far < max_ms_ && rc == -1 && errno == EAGAIN);
+
+    return rc;
+}
+#endif
+
+zmq::signaler_t::signaler_t ()
+{
+    //  Create the socketpair for signaling.
+    if (make_fdpair (&r, &w) == 0) {
+        unblock_socket (w);
+        unblock_socket (r);
+    }
+#ifdef HAVE_FORK
+    pid = getpid ();
+#endif
+}
+
+zmq::signaler_t::~signaler_t ()
+{
+#if defined ZMQ_HAVE_EVENTFD
+    int rc = close_wait_ms (r);
+    errno_assert (rc == 0);
+#elif defined ZMQ_HAVE_WINDOWS
+    const struct linger so_linger = { 1, 0 };
+    int rc = setsockopt (w, SOL_SOCKET, SO_LINGER,
+        (const char *) &so_linger, sizeof so_linger);
+    //  Only check shutdown if WSASTARTUP was previously done
+    if (rc == 0 || WSAGetLastError () != WSANOTINITIALISED) {
+        wsa_assert (rc != SOCKET_ERROR);
+        rc = closesocket (w);
+        wsa_assert (rc != SOCKET_ERROR);
+        rc = closesocket (r);
+        wsa_assert (rc != SOCKET_ERROR);
+    }
+#else
+    int rc = close_wait_ms (w);
+    errno_assert (rc == 0);
+    rc = close_wait_ms (r);
+    errno_assert (rc == 0);
+#endif
+}
+
+zmq::fd_t zmq::signaler_t::get_fd () const
+{
+    return r;
+}
+
+void zmq::signaler_t::send ()
+{
+#if defined HAVE_FORK
+    if (unlikely (pid != getpid ())) {
+        //printf("Child process %d signaler_t::send returning without sending #1\n", getpid());
+        return; // do not send anything in forked child context
+    }
+#endif
+#if defined ZMQ_HAVE_EVENTFD
+    const uint64_t inc = 1;
+    ssize_t sz = write (w, &inc, sizeof (inc));
+    errno_assert (sz == sizeof (inc));
+#elif defined ZMQ_HAVE_WINDOWS
+    unsigned char dummy = 0;
+    int nbytes = ::send (w, (char*) &dummy, sizeof (dummy), 0);
+    wsa_assert (nbytes != SOCKET_ERROR);
+    zmq_assert (nbytes == sizeof (dummy));
+#else
+    unsigned char dummy = 0;
+    while (true) {
+        ssize_t nbytes = ::send (w, &dummy, sizeof (dummy), 0);
+        if (unlikely (nbytes == -1 && errno == EINTR))
+            continue;
+#if defined(HAVE_FORK)
+        if (unlikely (pid != getpid ())) {
+            //printf("Child process %d signaler_t::send returning without sending #2\n", getpid());
+            errno = EINTR;
+            break;
+        }
+#endif
+        zmq_assert (nbytes == sizeof dummy);
+        break;
+    }
+#endif
+}
+
+int zmq::signaler_t::wait (int timeout_)
+{
+#ifdef HAVE_FORK
+    if (unlikely (pid != getpid ())) {
+        // we have forked and the file descriptor is closed. Emulate an interupt
+        // response.
+        //printf("Child process %d signaler_t::wait returning simulating interrupt #1\n", getpid());
+        errno = EINTR;
+        return -1;
+    }
+#endif
+
+#ifdef ZMQ_POLL_BASED_ON_POLL
+    struct pollfd pfd;
+    pfd.fd = r;
+    pfd.events = POLLIN;
+    int rc = poll (&pfd, 1, timeout_);
+    if (unlikely (rc < 0)) {
+        errno_assert (errno == EINTR);
+        return -1;
+    }
+    else
+    if (unlikely (rc == 0)) {
+        errno = EAGAIN;
+        return -1;
+    }
+#ifdef HAVE_FORK
+    else
+    if (unlikely (pid != getpid ())) {
+        // we have forked and the file descriptor is closed. Emulate an interupt
+        // response.
+        //printf("Child process %d signaler_t::wait returning simulating interrupt #2\n", getpid());
+        errno = EINTR;
+        return -1;
+    }
+#endif
+    zmq_assert (rc == 1);
+    zmq_assert (pfd.revents & POLLIN);
+    return 0;
+
+#elif defined ZMQ_POLL_BASED_ON_SELECT
+
+    fd_set fds;
+    FD_ZERO (&fds);
+    FD_SET (r, &fds);
+    struct timeval timeout;
+    if (timeout_ >= 0) {
+        timeout.tv_sec = timeout_ / 1000;
+        timeout.tv_usec = timeout_ % 1000 * 1000;
+    }
+#ifdef ZMQ_HAVE_WINDOWS
+    int rc = select (0, &fds, NULL, NULL,
+        timeout_ >= 0 ? &timeout : NULL);
+    wsa_assert (rc != SOCKET_ERROR);
+#else
+    int rc = select (r + 1, &fds, NULL, NULL,
+        timeout_ >= 0 ? &timeout : NULL);
+    if (unlikely (rc < 0)) {
+        errno_assert (errno == EINTR);
+        return -1;
+    }
+#endif
+    if (unlikely (rc == 0)) {
+        errno = EAGAIN;
+        return -1;
+    }
+    zmq_assert (rc == 1);
+    return 0;
+
+#else
+#error
+#endif
+}
+
+void zmq::signaler_t::recv ()
+{
+    //  Attempt to read a signal.
+#if defined ZMQ_HAVE_EVENTFD
+    uint64_t dummy;
+    ssize_t sz = read (r, &dummy, sizeof (dummy));
+    errno_assert (sz == sizeof (dummy));
+
+    //  If we accidentally grabbed the next signal along with the current
+    //  one, return it back to the eventfd object.
+    if (unlikely (dummy == 2)) {
+        const uint64_t inc = 1;
+        ssize_t sz2 = write (w, &inc, sizeof (inc));
+        errno_assert (sz2 == sizeof (inc));
+        return;
+    }
+
+    zmq_assert (dummy == 1);
+#else
+    unsigned char dummy;
+#if defined ZMQ_HAVE_WINDOWS
+    int nbytes = ::recv (r, (char*) &dummy, sizeof (dummy), 0);
+    wsa_assert (nbytes != SOCKET_ERROR);
+#else
+    ssize_t nbytes = ::recv (r, &dummy, sizeof (dummy), 0);
+    errno_assert (nbytes >= 0);
+#endif
+    zmq_assert (nbytes == sizeof (dummy));
+    zmq_assert (dummy == 0);
+#endif
+}
+
+#ifdef HAVE_FORK
+void zmq::signaler_t::forked ()
+{
+    //  Close file descriptors created in the parent and create new pair
+    close (r);
+    close (w);
+    make_fdpair (&r, &w);
+}
+#endif
+
+//  Returns -1 if we could not make the socket pair successfully
+int zmq::signaler_t::make_fdpair (fd_t *r_, fd_t *w_)
+{
+#if defined ZMQ_HAVE_EVENTFD
+    fd_t fd = eventfd (0, 0);
+    if (fd == -1) {
+        errno_assert (errno == ENFILE || errno == EMFILE);
+        *w_ = *r_ = -1;
+        return -1;
+    }
+    else {
+        *w_ = *r_ = fd;
+        return 0;
+    }
+
+#elif defined ZMQ_HAVE_WINDOWS
+#   if !defined _WIN32_WCE
+    // Windows CE does not manage security attributes
+    SECURITY_DESCRIPTOR sd;
+    SECURITY_ATTRIBUTES sa;
+    memset (&sd, 0, sizeof sd);
+    memset (&sa, 0, sizeof sa);
+
+    InitializeSecurityDescriptor (&sd, SECURITY_DESCRIPTOR_REVISION);
+    SetSecurityDescriptorDacl (&sd, TRUE, 0, FALSE);
+
+    sa.nLength = sizeof (SECURITY_ATTRIBUTES);
+    sa.lpSecurityDescriptor = &sd;
+#   endif
+
+    //  This function has to be in a system-wide critical section so that
+    //  two instances of the library don't accidentally create signaler
+    //  crossing the process boundary.
+    //  We'll use named event object to implement the critical section.
+    //  Note that if the event object already exists, the CreateEvent requests
+    //  EVENT_ALL_ACCESS access right. If this fails, we try to open
+    //  the event object asking for SYNCHRONIZE access only.
+    HANDLE sync = NULL;
+
+    //  Create critical section only if using fixed signaler port
+    //  Use problematic Event implementation for compatibility if using old port 5905.
+    //  Otherwise use Mutex implementation.
+    int event_signaler_port = 5905;
+
+    if (signaler_port == event_signaler_port) {
+#       if !defined _WIN32_WCE
+        sync = CreateEventW (&sa, FALSE, TRUE, L"Global\\zmq-signaler-port-sync");
+#       else
+        sync = CreateEventW (NULL, FALSE, TRUE, L"Global\\zmq-signaler-port-sync");
+#       endif
+        if (sync == NULL && GetLastError () == ERROR_ACCESS_DENIED)
+            sync = OpenEventW (SYNCHRONIZE | EVENT_MODIFY_STATE,
+                              FALSE, L"Global\\zmq-signaler-port-sync");
+
+        win_assert (sync != NULL);
+    }
+    else
+    if (signaler_port != 0) {
+        wchar_t mutex_name [MAX_PATH];
+#       ifdef __MINGW32__
+        _snwprintf (mutex_name, MAX_PATH, L"Global\\zmq-signaler-port-%d", signaler_port);
+#       else
+        swprintf (mutex_name, MAX_PATH, L"Global\\zmq-signaler-port-%d", signaler_port);
+#       endif
+
+#       if !defined _WIN32_WCE
+        sync = CreateMutexW (&sa, FALSE, mutex_name);
+#       else
+        sync = CreateMutexW (NULL, FALSE, mutex_name);
+#       endif
+        if (sync == NULL && GetLastError () == ERROR_ACCESS_DENIED)
+            sync = OpenMutexW (SYNCHRONIZE, FALSE, mutex_name);
+
+        win_assert (sync != NULL);
+    }
+
+    //  Windows has no 'socketpair' function. CreatePipe is no good as pipe
+    //  handles cannot be polled on. Here we create the socketpair by hand.
+    *w_ = INVALID_SOCKET;
+    *r_ = INVALID_SOCKET;
+
+    //  Create listening socket.
+    SOCKET listener;
+    listener = open_socket (AF_INET, SOCK_STREAM, 0);
+    wsa_assert (listener != INVALID_SOCKET);
+
+    //  Set SO_REUSEADDR and TCP_NODELAY on listening socket.
+    BOOL so_reuseaddr = 1;
+    int rc = setsockopt (listener, SOL_SOCKET, SO_REUSEADDR,
+        (char *)&so_reuseaddr, sizeof so_reuseaddr);
+    wsa_assert (rc != SOCKET_ERROR);
+    BOOL tcp_nodelay = 1;
+    rc = setsockopt (listener, IPPROTO_TCP, TCP_NODELAY,
+        (char *)&tcp_nodelay, sizeof tcp_nodelay);
+    wsa_assert (rc != SOCKET_ERROR);
+
+    //  Init sockaddr to signaler port.
+    struct sockaddr_in addr;
+    memset (&addr, 0, sizeof addr);
+    addr.sin_family = AF_INET;
+    addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+    addr.sin_port = htons (signaler_port);
+
+    //  Create the writer socket.
+    *w_ = open_socket (AF_INET, SOCK_STREAM, 0);
+    wsa_assert (*w_ != INVALID_SOCKET);
+
+    //  Set TCP_NODELAY on writer socket.
+    rc = setsockopt (*w_, IPPROTO_TCP, TCP_NODELAY,
+        (char *) &tcp_nodelay, sizeof tcp_nodelay);
+    wsa_assert (rc != SOCKET_ERROR);
+
+    if (sync != NULL) {
+        //  Enter the critical section.
+        DWORD dwrc = WaitForSingleObject (sync, INFINITE);
+        zmq_assert (dwrc == WAIT_OBJECT_0 || dwrc == WAIT_ABANDONED);
+    }
+
+    //  Bind listening socket to signaler port.
+    rc = bind (listener, (const struct sockaddr*) &addr, sizeof addr);
+
+    if (rc != SOCKET_ERROR && signaler_port == 0) {
+        //  Retrieve ephemeral port number
+        int addrlen = sizeof addr;
+        rc = getsockname (listener, (struct sockaddr*) &addr, &addrlen);
+    }
+
+    //  Listen for incoming connections.
+    if (rc != SOCKET_ERROR)
+        rc = listen (listener, 1);
+
+    //  Connect writer to the listener.
+    if (rc != SOCKET_ERROR)
+        rc = connect (*w_, (struct sockaddr*) &addr, sizeof addr);
+
+    //  Accept connection from writer.
+    if (rc != SOCKET_ERROR)
+        *r_ = accept (listener, NULL, NULL);
+
+    //  Save errno if error occurred in bind/listen/connect/accept.
+    int saved_errno = 0;
+    if (*r_ == INVALID_SOCKET)
+        saved_errno = WSAGetLastError ();
+
+    //  We don't need the listening socket anymore. Close it.
+    closesocket (listener);
+
+    if (sync != NULL) {
+        //  Exit the critical section.
+        BOOL brc;
+        if (signaler_port == event_signaler_port)
+            brc = SetEvent (sync);
+        else
+            brc = ReleaseMutex (sync);
+        win_assert (brc != 0);
+
+        //  Release the kernel object
+        brc = CloseHandle (sync);
+        win_assert (brc != 0);
+    }
+
+    if (*r_ != INVALID_SOCKET) {
+#   if !defined _WIN32_WCE
+        //  On Windows, preventing sockets to be inherited by child processes.
+        BOOL brc = SetHandleInformation ((HANDLE) *r_, HANDLE_FLAG_INHERIT, 0);
+        win_assert (brc);
+#   endif
+        return 0;
+    }
+    else {
+        //  Cleanup writer if connection failed
+        if (*w_ != INVALID_SOCKET) {
+            rc = closesocket (*w_);
+            wsa_assert (rc != SOCKET_ERROR);
+            *w_ = INVALID_SOCKET;
+        }
+        //  Set errno from saved value
+        errno = wsa_error_to_errno (saved_errno);
+        return -1;
+    }
+
+#elif defined ZMQ_HAVE_OPENVMS
+
+    //  Whilst OpenVMS supports socketpair - it maps to AF_INET only.  Further,
+    //  it does not set the socket options TCP_NODELAY and TCP_NODELACK which
+    //  can lead to performance problems.
+    //
+    //  The bug will be fixed in V5.6 ECO4 and beyond.  In the meantime, we'll
+    //  create the socket pair manually.
+    struct sockaddr_in lcladdr;
+    memset (&lcladdr, 0, sizeof lcladdr);
+    lcladdr.sin_family = AF_INET;
+    lcladdr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+    lcladdr.sin_port = 0;
+
+    int listener = open_socket (AF_INET, SOCK_STREAM, 0);
+    errno_assert (listener != -1);
+
+    int on = 1;
+    int rc = setsockopt (listener, IPPROTO_TCP, TCP_NODELAY, &on, sizeof on);
+    errno_assert (rc != -1);
+
+    rc = setsockopt (listener, IPPROTO_TCP, TCP_NODELACK, &on, sizeof on);
+    errno_assert (rc != -1);
+
+    rc = bind (listener, (struct sockaddr*) &lcladdr, sizeof lcladdr);
+    errno_assert (rc != -1);
+
+    socklen_t lcladdr_len = sizeof lcladdr;
+
+    rc = getsockname (listener, (struct sockaddr*) &lcladdr, &lcladdr_len);
+    errno_assert (rc != -1);
+
+    rc = listen (listener, 1);
+    errno_assert (rc != -1);
+
+    *w_ = open_socket (AF_INET, SOCK_STREAM, 0);
+    errno_assert (*w_ != -1);
+
+    rc = setsockopt (*w_, IPPROTO_TCP, TCP_NODELAY, &on, sizeof on);
+    errno_assert (rc != -1);
+
+    rc = setsockopt (*w_, IPPROTO_TCP, TCP_NODELACK, &on, sizeof on);
+    errno_assert (rc != -1);
+
+    rc = connect (*w_, (struct sockaddr*) &lcladdr, sizeof lcladdr);
+    errno_assert (rc != -1);
+
+    *r_ = accept (listener, NULL, NULL);
+    errno_assert (*r_ != -1);
+
+    close (listener);
+
+    return 0;
+
+#else
+    // All other implementations support socketpair()
+    int sv [2];
+    int rc = socketpair (AF_UNIX, SOCK_STREAM, 0, sv);
+    if (rc == -1) {
+        errno_assert (errno == ENFILE || errno == EMFILE);
+        *w_ = *r_ = -1;
+        return -1;
+    }
+    else {
+        *w_ = sv [0];
+        *r_ = sv [1];
+        return 0;
+    }
+#endif
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/signaler.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/signaler.hpp
new file mode 100644
index 00000000..1ab25dc2
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/signaler.hpp
@@ -0,0 +1,90 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_SIGNALER_HPP_INCLUDED__
+#define __ZMQ_SIGNALER_HPP_INCLUDED__
+
+#ifdef HAVE_FORK
+#include <unistd.h>
+#endif
+
+#include "fd.hpp"
+
+namespace zmq
+{
+
+    //  This is a cross-platform equivalent to signal_fd. However, as opposed
+    //  to signal_fd there can be at most one signal in the signaler at any
+    //  given moment. Attempt to send a signal before receiving the previous
+    //  one will result in undefined behaviour.
+
+    class signaler_t
+    {
+    public:
+
+        signaler_t ();
+        ~signaler_t ();
+
+        fd_t get_fd () const;
+        void send ();
+        int wait (int timeout_);
+        void recv ();
+
+#ifdef HAVE_FORK
+        // close the file descriptors in a forked child process so that they
+        // do not interfere with the context in the parent process.
+        void forked ();
+#endif
+
+    private:
+
+        //  Creates a pair of filedescriptors that will be used
+        //  to pass the signals.
+        static int make_fdpair (fd_t *r_, fd_t *w_);
+
+        //  Underlying write & read file descriptor
+        //  Will be -1 if we exceeded number of available handles
+        fd_t w;
+        fd_t r;
+
+        //  Disable copying of signaler_t object.
+        signaler_t (const signaler_t&);
+        const signaler_t &operator = (const signaler_t&);
+
+#ifdef HAVE_FORK
+        // the process that created this context. Used to detect forking.
+        pid_t pid;
+        // idempotent close of file descriptors that is safe to use by destructor
+        // and forked().
+        void close_internal ();
+#endif
+    };
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socket_base.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socket_base.cpp
new file mode 100644
index 00000000..bff70684
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socket_base.cpp
@@ -0,0 +1,1342 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <new>
+#include <string>
+#include <algorithm>
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#if defined _MSC_VER
+#if defined _WIN32_WCE
+#include <cmnintrin.h>
+#else
+#include <intrin.h>
+#endif
+#endif
+#else
+#include <unistd.h>
+#endif
+
+#include "socket_base.hpp"
+#include "tcp_listener.hpp"
+#include "ipc_listener.hpp"
+#include "tipc_listener.hpp"
+#include "tcp_connecter.hpp"
+#include "io_thread.hpp"
+#include "session_base.hpp"
+#include "config.hpp"
+#include "pipe.hpp"
+#include "err.hpp"
+#include "ctx.hpp"
+#include "platform.hpp"
+#include "likely.hpp"
+#include "msg.hpp"
+#include "address.hpp"
+#include "ipc_address.hpp"
+#include "tcp_address.hpp"
+#include "tipc_address.hpp"
+#ifdef ZMQ_HAVE_OPENPGM
+#include "pgm_socket.hpp"
+#endif
+
+#include "pair.hpp"
+#include "pub.hpp"
+#include "sub.hpp"
+#include "req.hpp"
+#include "rep.hpp"
+#include "pull.hpp"
+#include "push.hpp"
+#include "dealer.hpp"
+#include "router.hpp"
+#include "xpub.hpp"
+#include "xsub.hpp"
+#include "stream.hpp"
+
+bool zmq::socket_base_t::check_tag ()
+{
+    return tag == 0xbaddecaf;
+}
+
+zmq::socket_base_t *zmq::socket_base_t::create (int type_, class ctx_t *parent_,
+    uint32_t tid_, int sid_)
+{
+    socket_base_t *s = NULL;
+    switch (type_) {
+        case ZMQ_PAIR:
+            s = new (std::nothrow) pair_t (parent_, tid_, sid_);
+            break;
+        case ZMQ_PUB:
+            s = new (std::nothrow) pub_t (parent_, tid_, sid_);
+            break;
+        case ZMQ_SUB:
+            s = new (std::nothrow) sub_t (parent_, tid_, sid_);
+            break;
+        case ZMQ_REQ:
+            s = new (std::nothrow) req_t (parent_, tid_, sid_);
+            break;
+        case ZMQ_REP:
+            s = new (std::nothrow) rep_t (parent_, tid_, sid_);
+            break;
+        case ZMQ_DEALER:
+            s = new (std::nothrow) dealer_t (parent_, tid_, sid_);
+            break;
+        case ZMQ_ROUTER:
+            s = new (std::nothrow) router_t (parent_, tid_, sid_);
+            break;
+        case ZMQ_PULL:
+            s = new (std::nothrow) pull_t (parent_, tid_, sid_);
+            break;
+        case ZMQ_PUSH:
+            s = new (std::nothrow) push_t (parent_, tid_, sid_);
+            break;
+        case ZMQ_XPUB:
+            s = new (std::nothrow) xpub_t (parent_, tid_, sid_);
+            break;
+        case ZMQ_XSUB:
+            s = new (std::nothrow) xsub_t (parent_, tid_, sid_);
+            break;
+        case ZMQ_STREAM:
+            s = new (std::nothrow) stream_t (parent_, tid_, sid_);
+            break;
+        default:
+            errno = EINVAL;
+            return NULL;
+    }
+
+    alloc_assert (s);
+    if (s->mailbox.get_fd () == retired_fd)
+        return NULL;
+
+    return s;
+}
+
+zmq::socket_base_t::socket_base_t (ctx_t *parent_, uint32_t tid_, int sid_) :
+    own_t (parent_, tid_),
+    tag (0xbaddecaf),
+    ctx_terminated (false),
+    destroyed (false),
+    last_tsc (0),
+    ticks (0),
+    rcvmore (false),
+    file_desc(-1),
+    monitor_socket (NULL),
+    monitor_events (0)
+{
+    options.socket_id = sid_;
+    options.ipv6 = (parent_->get (ZMQ_IPV6) != 0);
+}
+
+zmq::socket_base_t::~socket_base_t ()
+{
+    stop_monitor ();
+    zmq_assert (destroyed);
+}
+
+zmq::mailbox_t *zmq::socket_base_t::get_mailbox ()
+{
+    return &mailbox;
+}
+
+void zmq::socket_base_t::stop ()
+{
+    //  Called by ctx when it is terminated (zmq_term).
+    //  'stop' command is sent from the threads that called zmq_term to
+    //  the thread owning the socket. This way, blocking call in the
+    //  owner thread can be interrupted.
+    send_stop ();
+}
+
+int zmq::socket_base_t::parse_uri (const char *uri_,
+                        std::string &protocol_, std::string &address_)
+{
+    zmq_assert (uri_ != NULL);
+
+    std::string uri (uri_);
+    std::string::size_type pos = uri.find ("://");
+    if (pos == std::string::npos) {
+        errno = EINVAL;
+        return -1;
+    }
+    protocol_ = uri.substr (0, pos);
+    address_ = uri.substr (pos + 3);
+
+    if (protocol_.empty () || address_.empty ()) {
+        errno = EINVAL;
+        return -1;
+    }
+    return 0;
+}
+
+int zmq::socket_base_t::check_protocol (const std::string &protocol_)
+{
+    //  First check out whether the protcol is something we are aware of.
+    if (protocol_ != "inproc"
+    &&  protocol_ != "ipc"
+    &&  protocol_ != "tcp"
+    &&  protocol_ != "pgm"
+    &&  protocol_ != "epgm"
+    &&  protocol_ != "tipc"
+    &&  protocol_ != "norm") {
+        errno = EPROTONOSUPPORT;
+        return -1;
+    }
+    //  If 0MQ is not compiled with OpenPGM, pgm and epgm transports
+    //  are not avaialble.
+#if !defined ZMQ_HAVE_OPENPGM
+    if (protocol_ == "pgm" || protocol_ == "epgm") {
+        errno = EPROTONOSUPPORT;
+        return -1;
+    }
+#endif
+
+#if !defined ZMQ_HAVE_NORM
+    if (protocol_ == "norm") {
+        errno = EPROTONOSUPPORT;
+        return -1;
+    }
+#endif // !ZMQ_HAVE_NORM
+
+    //  IPC transport is not available on Windows and OpenVMS.
+#if defined ZMQ_HAVE_WINDOWS || defined ZMQ_HAVE_OPENVMS
+    if (protocol_ == "ipc") {
+        //  Unknown protocol.
+        errno = EPROTONOSUPPORT;
+        return -1;
+    }
+#endif
+
+    // TIPC transport is only available on Linux.
+#if !defined ZMQ_HAVE_TIPC
+    if (protocol_ == "tipc") {
+        errno = EPROTONOSUPPORT;
+        return -1;
+    }
+#endif
+
+    //  Check whether socket type and transport protocol match.
+    //  Specifically, multicast protocols can't be combined with
+    //  bi-directional messaging patterns (socket types).
+    if ((protocol_ == "pgm" || protocol_ == "epgm" || protocol_ == "norm") &&
+          options.type != ZMQ_PUB && options.type != ZMQ_SUB &&
+          options.type != ZMQ_XPUB && options.type != ZMQ_XSUB) {
+        errno = ENOCOMPATPROTO;
+        return -1;
+    }
+
+    //  Protocol is available.
+    return 0;
+}
+
+void zmq::socket_base_t::attach_pipe (pipe_t *pipe_, bool subscribe_to_all_)
+{
+    //  First, register the pipe so that we can terminate it later on.
+    pipe_->set_event_sink (this);
+    pipes.push_back (pipe_);
+
+    //  Let the derived socket type know about new pipe.
+    xattach_pipe (pipe_, subscribe_to_all_);
+
+    //  If the socket is already being closed, ask any new pipes to terminate
+    //  straight away.
+    if (is_terminating ()) {
+        register_term_acks (1);
+        pipe_->terminate (false);
+    }
+}
+
+int zmq::socket_base_t::setsockopt (int option_, const void *optval_,
+    size_t optvallen_)
+{
+    if (unlikely (ctx_terminated)) {
+        errno = ETERM;
+        return -1;
+    }
+
+    //  First, check whether specific socket type overloads the option.
+    int rc = xsetsockopt (option_, optval_, optvallen_);
+    if (rc == 0 || errno != EINVAL)
+        return rc;
+
+    //  If the socket type doesn't support the option, pass it to
+    //  the generic option parser.
+    return options.setsockopt (option_, optval_, optvallen_);
+}
+
+int zmq::socket_base_t::getsockopt (int option_, void *optval_,
+    size_t *optvallen_)
+{
+    if (unlikely (ctx_terminated)) {
+        errno = ETERM;
+        return -1;
+    }
+
+    if (option_ == ZMQ_RCVMORE) {
+        if (*optvallen_ < sizeof (int)) {
+            errno = EINVAL;
+            return -1;
+        }
+        *((int*) optval_) = rcvmore ? 1 : 0;
+        *optvallen_ = sizeof (int);
+        return 0;
+    }
+
+    if (option_ == ZMQ_FD) {
+        if (*optvallen_ < sizeof (fd_t)) {
+            errno = EINVAL;
+            return -1;
+        }
+        *((fd_t*) optval_) = mailbox.get_fd ();
+        *optvallen_ = sizeof (fd_t);
+        return 0;
+    }
+
+    if (option_ == ZMQ_EVENTS) {
+        if (*optvallen_ < sizeof (int)) {
+            errno = EINVAL;
+            return -1;
+        }
+        int rc = process_commands (0, false);
+        if (rc != 0 && (errno == EINTR || errno == ETERM))
+            return -1;
+        errno_assert (rc == 0);
+        *((int*) optval_) = 0;
+        if (has_out ())
+            *((int*) optval_) |= ZMQ_POLLOUT;
+        if (has_in ())
+            *((int*) optval_) |= ZMQ_POLLIN;
+        *optvallen_ = sizeof (int);
+        return 0;
+    }
+
+    if (option_ == ZMQ_LAST_ENDPOINT) {
+        if (*optvallen_ < last_endpoint.size () + 1) {
+            errno = EINVAL;
+            return -1;
+        }
+        strcpy (static_cast <char *> (optval_), last_endpoint.c_str ());
+        *optvallen_ = last_endpoint.size () + 1;
+        return 0;
+    }
+
+    return options.getsockopt (option_, optval_, optvallen_);
+}
+
+int zmq::socket_base_t::bind (const char *addr_)
+{
+    if (unlikely (ctx_terminated)) {
+        errno = ETERM;
+        return -1;
+    }
+
+    //  Process pending commands, if any.
+    int rc = process_commands (0, false);
+    if (unlikely (rc != 0))
+        return -1;
+
+    //  Parse addr_ string.
+    std::string protocol;
+    std::string address;
+    if (parse_uri (addr_, protocol, address) || check_protocol (protocol))
+        return -1;
+
+    if (protocol == "inproc") {
+        const endpoint_t endpoint = { this, options };
+        const int rc = register_endpoint (addr_, endpoint);
+        if (rc == 0) {
+            connect_pending (addr_, this);
+            last_endpoint.assign (addr_);
+        }
+        return rc;
+    }
+
+    if (protocol == "pgm" || protocol == "epgm" || protocol == "norm") {
+        //  For convenience's sake, bind can be used interchageable with
+        //  connect for PGM, EPGM and NORM transports.
+        return connect (addr_);
+    }
+
+    //  Remaining trasnports require to be run in an I/O thread, so at this
+    //  point we'll choose one.
+    io_thread_t *io_thread = choose_io_thread (options.affinity);
+    if (!io_thread) {
+        errno = EMTHREAD;
+        return -1;
+    }
+
+    if (protocol == "tcp") {
+        tcp_listener_t *listener = new (std::nothrow) tcp_listener_t (
+            io_thread, this, options);
+        alloc_assert (listener);
+        int rc = listener->set_address (address.c_str ());
+        if (rc != 0) {
+            delete listener;
+            event_bind_failed (address, zmq_errno());
+            return -1;
+        }
+
+        // Save last endpoint URI
+        listener->get_address (last_endpoint);
+
+        add_endpoint (last_endpoint.c_str (), (own_t *) listener, NULL);
+        return 0;
+    }
+
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+    if (protocol == "ipc") {
+        ipc_listener_t *listener = new (std::nothrow) ipc_listener_t (
+            io_thread, this, options);
+        alloc_assert (listener);
+        int rc = listener->set_address (address.c_str ());
+        if (rc != 0) {
+            delete listener;
+            event_bind_failed (address, zmq_errno());
+            return -1;
+        }
+
+        // Save last endpoint URI
+        listener->get_address (last_endpoint);
+
+        add_endpoint (last_endpoint.c_str (), (own_t *) listener, NULL);
+        return 0;
+    }
+#endif
+#if defined ZMQ_HAVE_TIPC
+    if (protocol == "tipc") {
+         tipc_listener_t *listener = new (std::nothrow) tipc_listener_t (
+              io_thread, this, options);
+         alloc_assert (listener);
+         int rc = listener->set_address (address.c_str ());
+         if (rc != 0) {
+             delete listener;
+             event_bind_failed (address, zmq_errno());
+             return -1;
+         }
+
+        // Save last endpoint URI
+        listener->get_address (last_endpoint);
+
+        add_endpoint (addr_, (own_t *) listener, NULL);
+        return 0;
+    }
+#endif
+
+    zmq_assert (false);
+    return -1;
+}
+
+int zmq::socket_base_t::connect (const char *addr_)
+{
+    if (unlikely (ctx_terminated)) {
+        errno = ETERM;
+        return -1;
+    }
+
+    //  Process pending commands, if any.
+    int rc = process_commands (0, false);
+    if (unlikely (rc != 0))
+        return -1;
+
+    //  Parse addr_ string.
+    std::string protocol;
+    std::string address;
+    if (parse_uri (addr_, protocol, address) || check_protocol (protocol))
+        return -1;
+
+    if (protocol == "inproc") {
+
+        //  TODO: inproc connect is specific with respect to creating pipes
+        //  as there's no 'reconnect' functionality implemented. Once that
+        //  is in place we should follow generic pipe creation algorithm.
+
+        //  Find the peer endpoint.
+        endpoint_t peer = find_endpoint (addr_);
+
+        // The total HWM for an inproc connection should be the sum of
+        // the binder's HWM and the connector's HWM.
+        int sndhwm = 0;
+        if (peer.socket == NULL)
+            sndhwm = options.sndhwm;
+        else if (options.sndhwm != 0 && peer.options.rcvhwm != 0)
+            sndhwm = options.sndhwm + peer.options.rcvhwm;
+        int rcvhwm = 0;
+        if (peer.socket == NULL)
+            rcvhwm = options.rcvhwm;
+        else
+        if (options.rcvhwm != 0 && peer.options.sndhwm != 0)
+            rcvhwm = options.rcvhwm + peer.options.sndhwm;
+
+        //  Create a bi-directional pipe to connect the peers.
+        object_t *parents [2] = {this, peer.socket == NULL ? this : peer.socket};
+        pipe_t *new_pipes [2] = {NULL, NULL};
+
+        bool conflate = options.conflate &&
+            (options.type == ZMQ_DEALER ||
+             options.type == ZMQ_PULL ||
+             options.type == ZMQ_PUSH ||
+             options.type == ZMQ_PUB ||
+             options.type == ZMQ_SUB);
+
+        int hwms [2] = {conflate? -1 : sndhwm, conflate? -1 : rcvhwm};
+        bool conflates [2] = {conflate, conflate};
+        int rc = pipepair (parents, new_pipes, hwms, conflates);
+        errno_assert (rc == 0);
+
+        //  Attach local end of the pipe to this socket object.
+        attach_pipe (new_pipes [0]);
+
+        if (!peer.socket) {
+            //  The peer doesn't exist yet so we don't know whether
+            //  to send the identity message or not. To resolve this,
+            //  we always send our identity and drop it later if
+            //  the peer doesn't expect it.
+            msg_t id;
+            rc = id.init_size (options.identity_size);
+            errno_assert (rc == 0);
+            memcpy (id.data (), options.identity, options.identity_size);
+            id.set_flags (msg_t::identity);
+            bool written = new_pipes [0]->write (&id);
+            zmq_assert (written);
+            new_pipes [0]->flush ();
+
+            const endpoint_t endpoint = {this, options};
+            pend_connection (std::string (addr_), endpoint, new_pipes);
+        }
+        else {
+            //  If required, send the identity of the local socket to the peer.
+            if (peer.options.recv_identity) {
+                msg_t id;
+                rc = id.init_size (options.identity_size);
+                errno_assert (rc == 0);
+                memcpy (id.data (), options.identity, options.identity_size);
+                id.set_flags (msg_t::identity);
+                bool written = new_pipes [0]->write (&id);
+                zmq_assert (written);
+                new_pipes [0]->flush ();
+            }
+
+            //  If required, send the identity of the peer to the local socket.
+            if (options.recv_identity) {
+                msg_t id;
+                rc = id.init_size (peer.options.identity_size);
+                errno_assert (rc == 0);
+                memcpy (id.data (), peer.options.identity, peer.options.identity_size);
+                id.set_flags (msg_t::identity);
+                bool written = new_pipes [1]->write (&id);
+                zmq_assert (written);
+                new_pipes [1]->flush ();
+            }
+
+            //  Attach remote end of the pipe to the peer socket. Note that peer's
+            //  seqnum was incremented in find_endpoint function. We don't need it
+            //  increased here.
+            send_bind (peer.socket, new_pipes [1], false);
+        }
+
+        // Save last endpoint URI
+        last_endpoint.assign (addr_);
+
+        // remember inproc connections for disconnect
+        inprocs.insert (inprocs_t::value_type (std::string (addr_), new_pipes [0]));
+
+        return 0;
+    }
+    bool is_single_connect = (options.type == ZMQ_DEALER ||
+                              options.type == ZMQ_SUB ||
+                              options.type == ZMQ_REQ);
+    if (unlikely (is_single_connect)) {
+        const endpoints_t::iterator it = endpoints.find (addr_);
+        if (it != endpoints.end ()) {
+            // There is no valid use for multiple connects for SUB-PUB nor
+            // DEALER-ROUTER nor REQ-REP. Multiple connects produces
+            // nonsensical results.
+            return 0;
+        }
+    }
+
+    //  Choose the I/O thread to run the session in.
+    io_thread_t *io_thread = choose_io_thread (options.affinity);
+    if (!io_thread) {
+        errno = EMTHREAD;
+        return -1;
+    }
+
+    address_t *paddr = new (std::nothrow) address_t (protocol, address);
+    alloc_assert (paddr);
+
+    //  Resolve address (if needed by the protocol)
+    if (protocol == "tcp") {
+        //  Do some basic sanity checks on tcp:// address syntax
+        //  - hostname starts with digit or letter, with embedded '-' or '.'
+        //  - IPv6 address may contain hex chars and colons.
+        //  - IPv4 address may contain decimal digits and dots.
+        //  - Address must end in ":port" where port is *, or numeric
+        //  - Address may contain two parts separated by ':'
+        //  Following code is quick and dirty check to catch obvious errors,
+        //  without trying to be fully accurate.
+        const char *check = address.c_str ();
+        if (isalnum (*check) || isxdigit (*check)) {
+            check++;
+            while (isalnum  (*check)
+                || isxdigit (*check)
+                || *check == '.' || *check == '-' || *check == ':'|| *check == ';')
+                check++;
+        }
+        //  Assume the worst, now look for success
+        rc = -1;
+        //  Did we reach the end of the address safely?
+        if (*check == 0) {
+            //  Do we have a valid port string? (cannot be '*' in connect
+            check = strrchr (address.c_str (), ':');
+            if (check) {
+                check++;
+                if (*check && (isdigit (*check)))
+                    rc = 0;     //  Valid
+            }
+        }
+        if (rc == -1) {
+            errno = EINVAL;
+            delete paddr;
+            return -1;
+        }
+        //  Defer resolution until a socket is opened
+        paddr->resolved.tcp_addr = NULL;
+    }
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+    else
+    if (protocol == "ipc") {
+        paddr->resolved.ipc_addr = new (std::nothrow) ipc_address_t ();
+        alloc_assert (paddr->resolved.ipc_addr);
+        int rc = paddr->resolved.ipc_addr->resolve (address.c_str ());
+        if (rc != 0) {
+            delete paddr;
+            return -1;
+        }
+    }
+#endif
+
+// TBD - Should we check address for ZMQ_HAVE_NORM???
+
+#ifdef ZMQ_HAVE_OPENPGM
+    if (protocol == "pgm" || protocol == "epgm") {
+        struct pgm_addrinfo_t *res = NULL;
+        uint16_t port_number = 0;
+        int rc = pgm_socket_t::init_address(address.c_str(), &res, &port_number);
+        if (res != NULL)
+            pgm_freeaddrinfo (res);
+        if (rc != 0 || port_number == 0)
+            return -1;
+    }
+#endif
+#if defined ZMQ_HAVE_TIPC
+    else
+    if (protocol == "tipc") {
+        paddr->resolved.tipc_addr = new (std::nothrow) tipc_address_t ();
+        alloc_assert (paddr->resolved.tipc_addr);
+        int rc = paddr->resolved.tipc_addr->resolve (address.c_str());
+        if (rc != 0) {
+            delete paddr;
+            return -1;
+        }
+    }
+#endif
+
+    //  Create session.
+    session_base_t *session = session_base_t::create (io_thread, true, this,
+        options, paddr);
+    errno_assert (session);
+
+    //  PGM does not support subscription forwarding; ask for all data to be
+    //  sent to this pipe. (same for NORM, currently?)
+    bool subscribe_to_all = protocol == "pgm" || protocol == "epgm" || protocol == "norm";
+    pipe_t *newpipe = NULL;
+
+    if (options.immediate != 1 || subscribe_to_all) {
+        //  Create a bi-directional pipe.
+        object_t *parents [2] = {this, session};
+        pipe_t *new_pipes [2] = {NULL, NULL};
+
+        bool conflate = options.conflate &&
+            (options.type == ZMQ_DEALER ||
+             options.type == ZMQ_PULL ||
+             options.type == ZMQ_PUSH ||
+             options.type == ZMQ_PUB ||
+             options.type == ZMQ_SUB);
+
+        int hwms [2] = {conflate? -1 : options.sndhwm,
+            conflate? -1 : options.rcvhwm};
+        bool conflates [2] = {conflate, conflate};
+        rc = pipepair (parents, new_pipes, hwms, conflates);
+        errno_assert (rc == 0);
+
+        //  Attach local end of the pipe to the socket object.
+        attach_pipe (new_pipes [0], subscribe_to_all);
+        newpipe = new_pipes [0];
+
+        //  Attach remote end of the pipe to the session object later on.
+        session->attach_pipe (new_pipes [1]);
+    }
+
+    //  Save last endpoint URI
+    paddr->to_string (last_endpoint);
+
+    add_endpoint (addr_, (own_t *) session, newpipe);
+    return 0;
+}
+
+void zmq::socket_base_t::add_endpoint (const char *addr_, own_t *endpoint_, pipe_t *pipe)
+{
+    //  Activate the session. Make it a child of this socket.
+    launch_child (endpoint_);
+    endpoints.insert (endpoints_t::value_type (std::string (addr_), endpoint_pipe_t (endpoint_, pipe)));
+}
+
+int zmq::socket_base_t::term_endpoint (const char *addr_)
+{
+    //  Check whether the library haven't been shut down yet.
+    if (unlikely (ctx_terminated)) {
+        errno = ETERM;
+        return -1;
+    }
+
+    //  Check whether endpoint address passed to the function is valid.
+    if (unlikely (!addr_)) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    //  Process pending commands, if any, since there could be pending unprocessed process_own()'s
+    //  (from launch_child() for example) we're asked to terminate now.
+    int rc = process_commands (0, false);
+    if (unlikely (rc != 0))
+        return -1;
+
+    //  Parse addr_ string.
+    std::string protocol;
+    std::string address;
+    if (parse_uri (addr_, protocol, address) || check_protocol (protocol))
+        return -1;
+
+    // Disconnect an inproc socket
+    if (protocol == "inproc") {
+        if (unregister_endpoint (std::string (addr_), this) == 0)
+            return 0;
+        std::pair <inprocs_t::iterator, inprocs_t::iterator> range = inprocs.equal_range (std::string (addr_));
+        if (range.first == range.second) {
+            errno = ENOENT;
+            return -1;
+        }
+
+        for (inprocs_t::iterator it = range.first; it != range.second; ++it)
+            it->second->terminate (true);
+        inprocs.erase (range.first, range.second);
+        return 0;
+    }
+
+    //  Find the endpoints range (if any) corresponding to the addr_ string.
+    std::pair <endpoints_t::iterator, endpoints_t::iterator> range = endpoints.equal_range (std::string (addr_));
+    if (range.first == range.second) {
+        errno = ENOENT;
+        return -1;
+    }
+
+    for (endpoints_t::iterator it = range.first; it != range.second; ++it) {
+        //  If we have an associated pipe, terminate it.
+        if (it->second.second != NULL)
+            it->second.second->terminate (false);
+        term_child (it->second.first);
+    }
+    endpoints.erase (range.first, range.second);
+    return 0;
+}
+
+int zmq::socket_base_t::send (msg_t *msg_, int flags_)
+{
+    //  Check whether the library haven't been shut down yet.
+    if (unlikely (ctx_terminated)) {
+        errno = ETERM;
+        return -1;
+    }
+
+    //  Check whether message passed to the function is valid.
+    if (unlikely (!msg_ || !msg_->check ())) {
+        errno = EFAULT;
+        return -1;
+    }
+
+    //  Process pending commands, if any.
+    int rc = process_commands (0, true);
+    if (unlikely (rc != 0))
+        return -1;
+
+    //  Clear any user-visible flags that are set on the message.
+    msg_->reset_flags (msg_t::more);
+
+    //  At this point we impose the flags on the message.
+    if (flags_ & ZMQ_SNDMORE)
+        msg_->set_flags (msg_t::more);
+
+    msg_->reset_metadata ();
+
+    //  Try to send the message.
+    rc = xsend (msg_);
+    if (rc == 0)
+        return 0;
+    if (unlikely (errno != EAGAIN))
+        return -1;
+
+    //  In case of non-blocking send we'll simply propagate
+    //  the error - including EAGAIN - up the stack.
+    if (flags_ & ZMQ_DONTWAIT || options.sndtimeo == 0)
+        return -1;
+
+    //  Compute the time when the timeout should occur.
+    //  If the timeout is infinite, don't care.
+    int timeout = options.sndtimeo;
+    uint64_t end = timeout < 0 ? 0 : (clock.now_ms () + timeout);
+
+    //  Oops, we couldn't send the message. Wait for the next
+    //  command, process it and try to send the message again.
+    //  If timeout is reached in the meantime, return EAGAIN.
+    while (true) {
+        if (unlikely (process_commands (timeout, false) != 0))
+            return -1;
+        rc = xsend (msg_);
+        if (rc == 0)
+            break;
+        if (unlikely (errno != EAGAIN))
+            return -1;
+        if (timeout > 0) {
+            timeout = (int) (end - clock.now_ms ());
+            if (timeout <= 0) {
+                errno = EAGAIN;
+                return -1;
+            }
+        }
+    }
+    return 0;
+}
+
+int zmq::socket_base_t::recv (msg_t *msg_, int flags_)
+{
+    //  Check whether the library haven't been shut down yet.
+    if (unlikely (ctx_terminated)) {
+        errno = ETERM;
+        return -1;
+    }
+
+    //  Check whether message passed to the function is valid.
+    if (unlikely (!msg_ || !msg_->check ())) {
+        errno = EFAULT;
+        return -1;
+    }
+
+    //  Once every inbound_poll_rate messages check for signals and process
+    //  incoming commands. This happens only if we are not polling altogether
+    //  because there are messages available all the time. If poll occurs,
+    //  ticks is set to zero and thus we avoid this code.
+    //
+    //  Note that 'recv' uses different command throttling algorithm (the one
+    //  described above) from the one used by 'send'. This is because counting
+    //  ticks is more efficient than doing RDTSC all the time.
+    if (++ticks == inbound_poll_rate) {
+        if (unlikely (process_commands (0, false) != 0))
+            return -1;
+        ticks = 0;
+    }
+
+    //  Get the message.
+    int rc = xrecv (msg_);
+    if (unlikely (rc != 0 && errno != EAGAIN))
+        return -1;
+
+    //  If we have the message, return immediately.
+    if (rc == 0) {
+        if (file_desc != retired_fd)
+            msg_->set_fd(file_desc);
+        extract_flags (msg_);
+        return 0;
+    }
+
+    //  If the message cannot be fetched immediately, there are two scenarios.
+    //  For non-blocking recv, commands are processed in case there's an
+    //  activate_reader command already waiting int a command pipe.
+    //  If it's not, return EAGAIN.
+    if (flags_ & ZMQ_DONTWAIT || options.rcvtimeo == 0) {
+        if (unlikely (process_commands (0, false) != 0))
+            return -1;
+        ticks = 0;
+
+        rc = xrecv (msg_);
+        if (rc < 0)
+            return rc;
+        if (file_desc != retired_fd)
+            msg_->set_fd(file_desc);
+        extract_flags (msg_);
+        return 0;
+    }
+
+    //  Compute the time when the timeout should occur.
+    //  If the timeout is infinite, don't care.
+    int timeout = options.rcvtimeo;
+    uint64_t end = timeout < 0 ? 0 : (clock.now_ms () + timeout);
+
+    //  In blocking scenario, commands are processed over and over again until
+    //  we are able to fetch a message.
+    bool block = (ticks != 0);
+    while (true) {
+        if (unlikely (process_commands (block ? timeout : 0, false) != 0))
+            return -1;
+        rc = xrecv (msg_);
+        if (rc == 0) {
+            ticks = 0;
+            break;
+        }
+        if (unlikely (errno != EAGAIN))
+            return -1;
+        block = true;
+        if (timeout > 0) {
+            timeout = (int) (end - clock.now_ms ());
+            if (timeout <= 0) {
+                errno = EAGAIN;
+                return -1;
+            }
+        }
+    }
+
+    if (file_desc != retired_fd)
+        msg_->set_fd(file_desc);
+    extract_flags (msg_);
+    return 0;
+}
+
+int zmq::socket_base_t::close ()
+{
+    //  Mark the socket as dead
+    tag = 0xdeadbeef;
+
+    //  Transfer the ownership of the socket from this application thread
+    //  to the reaper thread which will take care of the rest of shutdown
+    //  process.
+    send_reap (this);
+
+    return 0;
+}
+
+bool zmq::socket_base_t::has_in ()
+{
+    return xhas_in ();
+}
+
+bool zmq::socket_base_t::has_out ()
+{
+    return xhas_out ();
+}
+
+void zmq::socket_base_t::start_reaping (poller_t *poller_)
+{
+    //  Plug the socket to the reaper thread.
+    poller = poller_;
+    handle = poller->add_fd (mailbox.get_fd (), this);
+    poller->set_pollin (handle);
+
+    //  Initialise the termination and check whether it can be deallocated
+    //  immediately.
+    terminate ();
+    check_destroy ();
+}
+
+int zmq::socket_base_t::process_commands (int timeout_, bool throttle_)
+{
+    int rc;
+    command_t cmd;
+    if (timeout_ != 0) {
+
+        //  If we are asked to wait, simply ask mailbox to wait.
+        rc = mailbox.recv (&cmd, timeout_);
+    }
+    else {
+
+        //  If we are asked not to wait, check whether we haven't processed
+        //  commands recently, so that we can throttle the new commands.
+
+        //  Get the CPU's tick counter. If 0, the counter is not available.
+        const uint64_t tsc = zmq::clock_t::rdtsc ();
+
+        //  Optimised version of command processing - it doesn't have to check
+        //  for incoming commands each time. It does so only if certain time
+        //  elapsed since last command processing. Command delay varies
+        //  depending on CPU speed: It's ~1ms on 3GHz CPU, ~2ms on 1.5GHz CPU
+        //  etc. The optimisation makes sense only on platforms where getting
+        //  a timestamp is a very cheap operation (tens of nanoseconds).
+        if (tsc && throttle_) {
+
+            //  Check whether TSC haven't jumped backwards (in case of migration
+            //  between CPU cores) and whether certain time have elapsed since
+            //  last command processing. If it didn't do nothing.
+            if (tsc >= last_tsc && tsc - last_tsc <= max_command_delay)
+                return 0;
+            last_tsc = tsc;
+        }
+
+        //  Check whether there are any commands pending for this thread.
+        rc = mailbox.recv (&cmd, 0);
+    }
+
+    //  Process all available commands.
+    while (rc == 0) {
+        cmd.destination->process_command (cmd);
+        rc = mailbox.recv (&cmd, 0);
+    }
+
+    if (errno == EINTR)
+        return -1;
+
+    zmq_assert (errno == EAGAIN);
+
+    if (ctx_terminated) {
+        errno = ETERM;
+        return -1;
+    }
+
+    return 0;
+}
+
+void zmq::socket_base_t::process_stop ()
+{
+    //  Here, someone have called zmq_term while the socket was still alive.
+    //  We'll remember the fact so that any blocking call is interrupted and any
+    //  further attempt to use the socket will return ETERM. The user is still
+    //  responsible for calling zmq_close on the socket though!
+    stop_monitor ();
+    ctx_terminated = true;
+}
+
+void zmq::socket_base_t::process_bind (pipe_t *pipe_)
+{
+    attach_pipe (pipe_);
+}
+
+void zmq::socket_base_t::process_term (int linger_)
+{
+    //  Unregister all inproc endpoints associated with this socket.
+    //  Doing this we make sure that no new pipes from other sockets (inproc)
+    //  will be initiated.
+    unregister_endpoints (this);
+
+    //  Ask all attached pipes to terminate.
+    for (pipes_t::size_type i = 0; i != pipes.size (); ++i)
+        pipes [i]->terminate (false);
+    register_term_acks ((int) pipes.size ());
+
+    //  Continue the termination process immediately.
+    own_t::process_term (linger_);
+}
+
+void zmq::socket_base_t::process_destroy ()
+{
+    destroyed = true;
+}
+
+int zmq::socket_base_t::xsetsockopt (int, const void *, size_t)
+{
+    errno = EINVAL;
+    return -1;
+}
+
+bool zmq::socket_base_t::xhas_out ()
+{
+    return false;
+}
+
+int zmq::socket_base_t::xsend (msg_t *)
+{
+    errno = ENOTSUP;
+    return -1;
+}
+
+bool zmq::socket_base_t::xhas_in ()
+{
+    return false;
+}
+
+int zmq::socket_base_t::xrecv (msg_t *)
+{
+    errno = ENOTSUP;
+    return -1;
+}
+
+zmq::blob_t zmq::socket_base_t::get_credential () const
+{
+    return blob_t ();
+}
+
+void zmq::socket_base_t::xread_activated (pipe_t *)
+{
+    zmq_assert (false);
+}
+void zmq::socket_base_t::xwrite_activated (pipe_t *)
+{
+    zmq_assert (false);
+}
+
+void zmq::socket_base_t::xhiccuped (pipe_t *)
+{
+    zmq_assert (false);
+}
+
+void zmq::socket_base_t::in_event ()
+{
+    //  This function is invoked only once the socket is running in the context
+    //  of the reaper thread. Process any commands from other threads/sockets
+    //  that may be available at the moment. Ultimately, the socket will
+    //  be destroyed.
+    process_commands (0, false);
+    check_destroy ();
+}
+
+void zmq::socket_base_t::out_event ()
+{
+    zmq_assert (false);
+}
+
+void zmq::socket_base_t::timer_event (int)
+{
+    zmq_assert (false);
+}
+
+void zmq::socket_base_t::check_destroy ()
+{
+    //  If the object was already marked as destroyed, finish the deallocation.
+    if (destroyed) {
+
+        //  Remove the socket from the reaper's poller.
+        poller->rm_fd (handle);
+
+        //  Remove the socket from the context.
+        destroy_socket (this);
+
+        //  Notify the reaper about the fact.
+        send_reaped ();
+
+        //  Deallocate.
+        own_t::process_destroy ();
+    }
+}
+
+void zmq::socket_base_t::read_activated (pipe_t *pipe_)
+{
+    xread_activated (pipe_);
+}
+
+void zmq::socket_base_t::write_activated (pipe_t *pipe_)
+{
+    xwrite_activated (pipe_);
+}
+
+void zmq::socket_base_t::hiccuped (pipe_t *pipe_)
+{
+    if (options.immediate == 1)
+        pipe_->terminate (false);
+    else
+        // Notify derived sockets of the hiccup
+        xhiccuped (pipe_);
+}
+
+void zmq::socket_base_t::pipe_terminated (pipe_t *pipe_)
+{
+    //  Notify the specific socket type about the pipe termination.
+    xpipe_terminated (pipe_);
+
+    // Remove pipe from inproc pipes
+    for (inprocs_t::iterator it = inprocs.begin (); it != inprocs.end (); ++it)
+        if (it->second == pipe_) {
+            inprocs.erase (it);
+            break;
+        }
+
+    //  Remove the pipe from the list of attached pipes and confirm its
+    //  termination if we are already shutting down.
+    pipes.erase (pipe_);
+    if (is_terminating ())
+        unregister_term_ack ();
+}
+
+void zmq::socket_base_t::extract_flags (msg_t *msg_)
+{
+    //  Test whether IDENTITY flag is valid for this socket type.
+    if (unlikely (msg_->flags () & msg_t::identity))
+        zmq_assert (options.recv_identity);
+
+    //  Remove MORE flag.
+    rcvmore = msg_->flags () & msg_t::more ? true : false;
+}
+
+int zmq::socket_base_t::monitor (const char *addr_, int events_)
+{
+    if (unlikely (ctx_terminated)) {
+        errno = ETERM;
+        return -1;
+    }
+    //  Support deregistering monitoring endpoints as well
+    if (addr_ == NULL) {
+        stop_monitor ();
+        return 0;
+    }
+    //  Parse addr_ string.
+    std::string protocol;
+    std::string address;
+    if (parse_uri (addr_, protocol, address) || check_protocol (protocol))
+        return -1;
+
+    //  Event notification only supported over inproc://
+    if (protocol != "inproc") {
+        errno = EPROTONOSUPPORT;
+        return -1;
+    }
+    //  Register events to monitor
+    monitor_events = events_;
+    monitor_socket = zmq_socket (get_ctx (), ZMQ_PAIR);
+    if (monitor_socket == NULL)
+        return -1;
+
+    //  Never block context termination on pending event messages
+    int linger = 0;
+    int rc = zmq_setsockopt (monitor_socket, ZMQ_LINGER, &linger, sizeof (linger));
+    if (rc == -1)
+        stop_monitor ();
+
+    //  Spawn the monitor socket endpoint
+    rc = zmq_bind (monitor_socket, addr_);
+    if (rc == -1)
+         stop_monitor ();
+    return rc;
+}
+
+void zmq::socket_base_t::set_fd(zmq::fd_t fd_)
+{
+    file_desc = fd_;
+}
+
+zmq::fd_t zmq::socket_base_t::fd()
+{
+    return file_desc;
+}
+
+void zmq::socket_base_t::event_connected (const std::string &addr_, int fd_)
+{
+    if (monitor_events & ZMQ_EVENT_CONNECTED)
+        monitor_event (ZMQ_EVENT_CONNECTED, fd_, addr_);
+}
+
+void zmq::socket_base_t::event_connect_delayed (const std::string &addr_, int err_)
+{
+    if (monitor_events & ZMQ_EVENT_CONNECT_DELAYED)
+        monitor_event (ZMQ_EVENT_CONNECT_DELAYED, err_, addr_);
+}
+
+void zmq::socket_base_t::event_connect_retried (const std::string &addr_, int interval_)
+{
+    if (monitor_events & ZMQ_EVENT_CONNECT_RETRIED)
+        monitor_event (ZMQ_EVENT_CONNECT_RETRIED, interval_, addr_);
+}
+
+void zmq::socket_base_t::event_listening (const std::string &addr_, int fd_)
+{
+    if (monitor_events & ZMQ_EVENT_LISTENING)
+        monitor_event (ZMQ_EVENT_LISTENING, fd_, addr_);
+}
+
+void zmq::socket_base_t::event_bind_failed (const std::string &addr_, int err_)
+{
+    if (monitor_events & ZMQ_EVENT_BIND_FAILED)
+        monitor_event (ZMQ_EVENT_BIND_FAILED, err_, addr_);
+}
+
+void zmq::socket_base_t::event_accepted (const std::string &addr_, int fd_)
+{
+    if (monitor_events & ZMQ_EVENT_ACCEPTED)
+        monitor_event (ZMQ_EVENT_ACCEPTED, fd_, addr_);
+}
+
+void zmq::socket_base_t::event_accept_failed (const std::string &addr_, int err_)
+{
+    if (monitor_events & ZMQ_EVENT_ACCEPT_FAILED)
+        monitor_event (ZMQ_EVENT_ACCEPT_FAILED, err_, addr_);
+}
+
+void zmq::socket_base_t::event_closed (const std::string &addr_, int fd_)
+{
+    if (monitor_events & ZMQ_EVENT_CLOSED)
+        monitor_event (ZMQ_EVENT_CLOSED, fd_, addr_);
+}
+
+void zmq::socket_base_t::event_close_failed (const std::string &addr_, int err_)
+{
+    if (monitor_events & ZMQ_EVENT_CLOSE_FAILED)
+        monitor_event (ZMQ_EVENT_CLOSE_FAILED, err_, addr_);
+}
+
+void zmq::socket_base_t::event_disconnected (const std::string &addr_, int fd_)
+{
+    if (monitor_events & ZMQ_EVENT_DISCONNECTED)
+        monitor_event (ZMQ_EVENT_DISCONNECTED, fd_, addr_);
+}
+
+//  Send a monitor event
+void zmq::socket_base_t::monitor_event (int event_, int value_, const std::string &addr_)
+{
+    if (monitor_socket) {
+        //  Send event in first frame
+        zmq_msg_t msg;
+        zmq_msg_init_size (&msg, 6);
+        uint8_t *data = (uint8_t *) zmq_msg_data (&msg);
+        *(uint16_t *) (data + 0) = (uint16_t) event_;
+        *(uint32_t *) (data + 2) = (uint32_t) value_;
+        zmq_sendmsg (monitor_socket, &msg, ZMQ_SNDMORE);
+
+        //  Send address in second frame
+        zmq_msg_init_size (&msg, addr_.size());
+        memcpy (zmq_msg_data (&msg), addr_.c_str (), addr_.size ());
+        zmq_sendmsg (monitor_socket, &msg, 0);
+    }
+}
+
+void zmq::socket_base_t::stop_monitor (void)
+{
+    if (monitor_socket) {
+        if (monitor_events & ZMQ_EVENT_MONITOR_STOPPED)
+            monitor_event (ZMQ_EVENT_MONITOR_STOPPED, 0, "");
+        zmq_close (monitor_socket);
+        monitor_socket = NULL;
+        monitor_events = 0;
+    }
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socket_base.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socket_base.hpp
new file mode 100644
index 00000000..171b5b8b
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socket_base.hpp
@@ -0,0 +1,278 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_SOCKET_BASE_HPP_INCLUDED__
+#define __ZMQ_SOCKET_BASE_HPP_INCLUDED__
+
+#include <string>
+#include <map>
+#include <stdarg.h>
+
+#include "own.hpp"
+#include "array.hpp"
+#include "blob.hpp"
+#include "stdint.hpp"
+#include "poller.hpp"
+#include "atomic_counter.hpp"
+#include "i_poll_events.hpp"
+#include "mailbox.hpp"
+#include "stdint.hpp"
+#include "clock.hpp"
+#include "pipe.hpp"
+
+extern "C"
+{
+    void zmq_free_event (void *data, void *hint);
+}
+
+namespace zmq
+{
+
+    class ctx_t;
+    class msg_t;
+    class pipe_t;
+
+    class socket_base_t :
+        public own_t,
+        public array_item_t <>,
+        public i_poll_events,
+        public i_pipe_events
+    {
+        friend class reaper_t;
+
+    public:
+
+        //  Returns false if object is not a socket.
+        bool check_tag ();
+
+        //  Create a socket of a specified type.
+        static socket_base_t *create (int type_, zmq::ctx_t *parent_,
+            uint32_t tid_, int sid_);
+
+        //  Returns the mailbox associated with this socket.
+        mailbox_t *get_mailbox ();
+
+        //  Interrupt blocking call if the socket is stuck in one.
+        //  This function can be called from a different thread!
+        void stop ();
+
+        //  Interface for communication with the API layer.
+        int setsockopt (int option_, const void *optval_, size_t optvallen_);
+        int getsockopt (int option_, void *optval_, size_t *optvallen_);
+        int bind (const char *addr_);
+        int connect (const char *addr_);
+        int term_endpoint (const char *addr_);
+        int send (zmq::msg_t *msg_, int flags_);
+        int recv (zmq::msg_t *msg_, int flags_);
+        int close ();
+
+        //  These functions are used by the polling mechanism to determine
+        //  which events are to be reported from this socket.
+        bool has_in ();
+        bool has_out ();
+
+        //  Using this function reaper thread ask the socket to regiter with
+        //  its poller.
+        void start_reaping (poller_t *poller_);
+
+        //  i_poll_events implementation. This interface is used when socket
+        //  is handled by the poller in the reaper thread.
+        void in_event ();
+        void out_event ();
+        void timer_event (int id_);
+
+        //  i_pipe_events interface implementation.
+        void read_activated (pipe_t *pipe_);
+        void write_activated (pipe_t *pipe_);
+        void hiccuped (pipe_t *pipe_);
+        void pipe_terminated (pipe_t *pipe_);
+        void lock();
+        void unlock();
+
+        int monitor (const char *endpoint_, int events_);
+
+        void set_fd(fd_t fd_);
+        fd_t fd();
+
+        void event_connected (const std::string &addr_, int fd_);
+        void event_connect_delayed (const std::string &addr_, int err_);
+        void event_connect_retried (const std::string &addr_, int interval_);
+        void event_listening (const std::string &addr_, int fd_);
+        void event_bind_failed (const std::string &addr_, int err_);
+        void event_accepted (const std::string &addr_, int fd_);
+        void event_accept_failed (const std::string &addr_, int err_);
+        void event_closed (const std::string &addr_, int fd_);
+        void event_close_failed (const std::string &addr_, int fd_);
+        void event_disconnected (const std::string &addr_, int fd_);
+
+    protected:
+
+        socket_base_t (zmq::ctx_t *parent_, uint32_t tid_, int sid_);
+        virtual ~socket_base_t ();
+
+        //  Concrete algorithms for the x- methods are to be defined by
+        //  individual socket types.
+        virtual void xattach_pipe (zmq::pipe_t *pipe_,
+            bool subscribe_to_all_ = false) = 0;
+
+        //  The default implementation assumes there are no specific socket
+        //  options for the particular socket type. If not so, override this
+        //  method.
+        virtual int xsetsockopt (int option_, const void *optval_,
+            size_t optvallen_);
+
+        //  The default implementation assumes that send is not supported.
+        virtual bool xhas_out ();
+        virtual int xsend (zmq::msg_t *msg_);
+
+        //  The default implementation assumes that recv in not supported.
+        virtual bool xhas_in ();
+        virtual int xrecv (zmq::msg_t *msg_);
+
+        //  Returns the credential for the peer from which we have received
+        //  the last message. If no message has been received yet,
+        //  the function returns empty credential.
+        virtual blob_t get_credential () const;
+
+        //  i_pipe_events will be forwarded to these functions.
+        virtual void xread_activated (pipe_t *pipe_);
+        virtual void xwrite_activated (pipe_t *pipe_);
+        virtual void xhiccuped (pipe_t *pipe_);
+        virtual void xpipe_terminated (pipe_t *pipe_) = 0;
+
+        //  Delay actual destruction of the socket.
+        void process_destroy ();
+
+        // Socket event data dispath
+        void monitor_event (int event_, int value_, const std::string& addr_);
+
+        // Monitor socket cleanup
+        void stop_monitor ();
+
+        // Next assigned name on a zmq_connect() call used by ROUTER and STREAM socket types
+        std::string connect_rid;
+
+    private:
+        //  Creates new endpoint ID and adds the endpoint to the map.
+        void add_endpoint (const char *addr_, own_t *endpoint_, pipe_t *pipe);
+
+        //  Map of open endpoints.
+        typedef std::pair <own_t *, pipe_t*> endpoint_pipe_t;
+        typedef std::multimap <std::string, endpoint_pipe_t> endpoints_t;
+        endpoints_t endpoints;
+
+        //  Map of open inproc endpoints.
+        typedef std::multimap <std::string, pipe_t *> inprocs_t;
+        inprocs_t inprocs;
+
+        //  To be called after processing commands or invoking any command
+        //  handlers explicitly. If required, it will deallocate the socket.
+        void check_destroy ();
+
+        //  Moves the flags from the message to local variables,
+        //  to be later retrieved by getsockopt.
+        void extract_flags (msg_t *msg_);
+
+        //  Used to check whether the object is a socket.
+        uint32_t tag;
+
+        //  If true, associated context was already terminated.
+        bool ctx_terminated;
+
+        //  If true, object should have been already destroyed. However,
+        //  destruction is delayed while we unwind the stack to the point
+        //  where it doesn't intersect the object being destroyed.
+        bool destroyed;
+
+        //  Parse URI string.
+        int parse_uri (const char *uri_, std::string &protocol_,
+            std::string &address_);
+
+        //  Check whether transport protocol, as specified in connect or
+        //  bind, is available and compatible with the socket type.
+        int check_protocol (const std::string &protocol_);
+
+        //  Register the pipe with this socket.
+        void attach_pipe (zmq::pipe_t *pipe_, bool subscribe_to_all_ = false);
+
+        //  Processes commands sent to this socket (if any). If timeout is -1,
+        //  returns only after at least one command was processed.
+        //  If throttle argument is true, commands are processed at most once
+        //  in a predefined time period.
+        int process_commands (int timeout_, bool throttle_);
+
+        //  Handlers for incoming commands.
+        void process_stop ();
+        void process_bind (zmq::pipe_t *pipe_);
+        void process_term (int linger_);
+
+        //  Socket's mailbox object.
+        mailbox_t mailbox;
+
+        //  List of attached pipes.
+        typedef array_t <pipe_t, 3> pipes_t;
+        pipes_t pipes;
+
+        //  Reaper's poller and handle of this socket within it.
+        poller_t *poller;
+        poller_t::handle_t handle;
+
+        //  Timestamp of when commands were processed the last time.
+        uint64_t last_tsc;
+
+        //  Number of messages received since last command processing.
+        int ticks;
+
+        //  True if the last message received had MORE flag set.
+        bool rcvmore;
+
+        // File descriptor if applicable
+        fd_t file_desc;
+
+        //  Improves efficiency of time measurement.
+        clock_t clock;
+
+        // Monitor socket;
+        void *monitor_socket;
+
+        // Bitmask of events being monitored
+        int monitor_events;
+
+        // Last socket endpoint resolved URI
+        std::string last_endpoint;
+
+        socket_base_t (const socket_base_t&);
+        const socket_base_t &operator = (const socket_base_t&);
+        mutex_t sync;
+    };
+
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socks.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socks.cpp
new file mode 100644
index 00000000..ecd0e270
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socks.cpp
@@ -0,0 +1,283 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <sys/types.h>
+
+#include "err.hpp"
+#include "platform.hpp"
+#include "socks.hpp"
+#include "tcp.hpp"
+
+#ifndef ZMQ_HAVE_WINDOWS
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#endif
+
+zmq::socks_greeting_t::socks_greeting_t (uint8_t method_) :
+    num_methods (1)
+{
+    methods [0] = method_;
+}
+
+zmq::socks_greeting_t::socks_greeting_t (
+        uint8_t *methods_, size_t num_methods_)
+    : num_methods (num_methods_)
+{
+    zmq_assert (num_methods_ <= 255);
+
+    for (size_t i = 0; i < num_methods_; i++)
+        methods [i] = methods_ [i];
+}
+
+zmq::socks_greeting_encoder_t::socks_greeting_encoder_t ()
+    : bytes_encoded (0), bytes_written (0)
+{}
+
+void zmq::socks_greeting_encoder_t::encode (const socks_greeting_t &greeting_)
+{
+    uint8_t *ptr = buf;
+
+    *ptr++ = 0x05;
+    *ptr++ = greeting_.num_methods;
+    for (size_t i = 0; i < greeting_.num_methods; i++)
+        *ptr++ = greeting_.methods [i];
+
+    bytes_encoded = 2 + greeting_.num_methods;
+    bytes_written = 0;
+}
+
+int zmq::socks_greeting_encoder_t::output (fd_t fd_)
+{
+    const int rc = tcp_write (
+        fd_, buf + bytes_written, bytes_encoded - bytes_written);
+    if (rc > 0)
+        bytes_written += static_cast <size_t> (rc);
+    return rc;
+}
+
+bool zmq::socks_greeting_encoder_t::has_pending_data () const
+{
+    return bytes_written < bytes_encoded;
+}
+
+void zmq::socks_greeting_encoder_t::reset ()
+{
+    bytes_encoded = bytes_written = 0;
+}
+
+zmq::socks_choice_t::socks_choice_t (unsigned char method_)
+    : method (method_)
+{}
+
+zmq::socks_choice_decoder_t::socks_choice_decoder_t ()
+    : bytes_read (0)
+{}
+
+int zmq::socks_choice_decoder_t::input (fd_t fd_)
+{
+    zmq_assert (bytes_read < 2);
+    const int rc = tcp_read (fd_, buf + bytes_read, 2 - bytes_read);
+    if (rc > 0) {
+        bytes_read += static_cast <size_t> (rc);
+        if (buf [0] != 0x05)
+            return -1;
+    }
+    return rc;
+}
+
+bool zmq::socks_choice_decoder_t::message_ready () const
+{
+    return bytes_read == 2;
+}
+
+zmq::socks_choice_t zmq::socks_choice_decoder_t::decode ()
+{
+    zmq_assert (message_ready ());
+    return socks_choice_t (buf [1]);
+}
+
+void zmq::socks_choice_decoder_t::reset ()
+{
+    bytes_read = 0;
+}
+
+zmq::socks_request_t::socks_request_t (
+        uint8_t command_, std::string hostname_, uint16_t port_)
+    : command (command_), hostname (hostname_), port (port_)
+{}
+
+zmq::socks_request_encoder_t::socks_request_encoder_t ()
+    : bytes_encoded (0), bytes_written (0)
+{}
+
+void zmq::socks_request_encoder_t::encode (const socks_request_t &req)
+{
+    unsigned char *ptr = buf;
+    *ptr++ = 0x05;
+    *ptr++ = req.command;
+    *ptr++ = 0x00;
+
+#if defined ZMQ_HAVE_OPENVMS && defined __ia64 && __INITIAL_POINTER_SIZE == 64
+    __addrinfo64 hints, *res = NULL;
+#else
+    addrinfo hints, *res = NULL;
+#endif
+
+    memset (&hints, 0, sizeof hints);
+
+    //  Suppress potential DNS lookups.
+    hints.ai_flags = AI_NUMERICHOST;
+
+    const int rc = getaddrinfo (req.hostname.c_str (), NULL, &hints, &res);
+    if (rc == 0 && res->ai_family == AF_INET) {
+        struct sockaddr_in *sockaddr_in =
+            reinterpret_cast <struct sockaddr_in *> (res->ai_addr);
+        *ptr++ = 0x01;
+        memcpy (ptr, &sockaddr_in->sin_addr, 4);
+        ptr += 4;
+    }
+    else
+    if (rc == 0 && res->ai_family == AF_INET6) {
+        struct sockaddr_in6 *sockaddr_in6 =
+            reinterpret_cast <struct sockaddr_in6 *> (res->ai_addr);
+        *ptr++ = 0x04;
+        memcpy (ptr, &sockaddr_in6->sin6_addr, 16);
+        ptr += 16;
+    }
+    else {
+        *ptr++ = 0x03;
+        *ptr++ = req.hostname.size ();
+        memcpy (ptr, req.hostname.c_str (), req.hostname.size ());
+        ptr += req.hostname.size ();
+    }
+
+    if (rc == 0)
+        freeaddrinfo (res);
+
+    *ptr++ = req.port / 256;
+    *ptr++ = req.port % 256;
+
+    bytes_encoded = ptr - buf;
+    bytes_written = 0;
+}
+
+int zmq::socks_request_encoder_t::output (fd_t fd_)
+{
+    const int rc = tcp_write (
+        fd_, buf + bytes_written, bytes_encoded - bytes_written);
+    if (rc > 0)
+        bytes_written += static_cast <size_t> (rc);
+    return rc;
+}
+
+bool zmq::socks_request_encoder_t::has_pending_data () const
+{
+    return bytes_written < bytes_encoded;
+}
+
+void zmq::socks_request_encoder_t::reset ()
+{
+    bytes_encoded = bytes_written = 0;
+}
+
+zmq::socks_response_t::socks_response_t (
+        uint8_t response_code_, std::string address_, uint16_t port_)
+    : response_code (response_code_), address (address_), port (port_)
+{}
+
+zmq::socks_response_decoder_t::socks_response_decoder_t ()
+    : bytes_read (0)
+{}
+
+int zmq::socks_response_decoder_t::input (fd_t fd_)
+{
+    size_t n = 0;
+
+    if (bytes_read < 5)
+        n = 5 - bytes_read;
+    else {
+        const uint8_t atyp = buf [3];
+        zmq_assert (atyp == 0x01 || atyp == 0x03 || atyp == 0x04);
+        if (atyp == 0x01)
+            n = 3 + 2;
+        else
+        if (atyp == 0x03)
+            n = buf [4] + 2;
+        else
+        if (atyp == 0x04)
+            n = 15 + 2;
+    }
+    const int rc = tcp_read (fd_, buf + bytes_read, n);
+    if (rc > 0) {
+        bytes_read += static_cast <size_t> (rc);
+        if (buf [0] != 0x05)
+            return -1;
+        if (bytes_read >= 2)
+            if (buf [1] > 0x08)
+                return -1;
+        if (bytes_read >= 3)
+            if (buf [2] != 0x00)
+                return -1;
+        if (bytes_read >= 4) {
+            const uint8_t atyp = buf [3];
+            if (atyp != 0x01 && atyp != 0x03 && atyp != 0x04)
+                return -1;
+        }
+    }
+    return rc;
+}
+
+bool zmq::socks_response_decoder_t::message_ready () const
+{
+    if (bytes_read < 4)
+        return false;
+    else {
+        const uint8_t atyp = buf [3];
+        zmq_assert (atyp == 0x01 || atyp == 0x03 || atyp == 0x04);
+        if (atyp == 0x01)
+            return bytes_read == 10;
+        else
+        if (atyp == 0x03)
+            return bytes_read > 4 && bytes_read == 4 + 1 + buf [4] + 2u;
+        else
+            return bytes_read == 22;
+    }
+}
+
+zmq::socks_response_t zmq::socks_response_decoder_t::decode ()
+{
+    zmq_assert (message_ready ());
+    return socks_response_t (buf [1], "", 0);
+}
+
+void zmq::socks_response_decoder_t::reset ()
+{
+    bytes_read = 0;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socks.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socks.hpp
new file mode 100644
index 00000000..d64acd83
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socks.hpp
@@ -0,0 +1,135 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_SOCKS_HPP_INCLUDED__
+#define __ZMQ_SOCKS_HPP_INCLUDED__
+
+#include <string>
+#include "fd.hpp"
+#include "stdint.hpp"
+
+namespace zmq
+{
+
+    struct socks_greeting_t
+    {
+        socks_greeting_t (uint8_t method);
+        socks_greeting_t (uint8_t *methods_, size_t num_methods_);
+
+        uint8_t methods [255];
+        const size_t num_methods;
+    };
+
+    class socks_greeting_encoder_t
+    {
+        public:
+            socks_greeting_encoder_t ();
+            void encode (const socks_greeting_t &greeting_);
+            int output (fd_t fd_);
+            bool has_pending_data () const;
+            void reset ();
+
+        private:
+            size_t bytes_encoded;
+            size_t bytes_written;
+            uint8_t buf [2 + 255];
+    };
+
+    struct socks_choice_t
+    {
+        socks_choice_t (uint8_t method_);
+
+        uint8_t method;
+    };
+
+    class socks_choice_decoder_t
+    {
+        public:
+            socks_choice_decoder_t ();
+            int input (fd_t fd_);
+            bool message_ready () const;
+            socks_choice_t decode ();
+            void reset ();
+
+        private:
+            unsigned char buf [2];
+            size_t bytes_read;
+    };
+
+    struct socks_request_t
+    {
+        socks_request_t (
+            uint8_t command_, std::string hostname_, uint16_t port_);
+
+        const uint8_t command;
+        const std::string hostname;
+        const uint16_t port;
+    };
+
+    class socks_request_encoder_t
+    {
+        public:
+            socks_request_encoder_t ();
+            void encode (const socks_request_t &req);
+            int output (fd_t fd_);
+            bool has_pending_data () const;
+            void reset ();
+
+        private:
+            size_t bytes_encoded;
+            size_t bytes_written;
+            uint8_t buf [4 + 256 + 2];
+    };
+
+    struct socks_response_t
+    {
+        socks_response_t (
+            uint8_t response_code_, std::string address_, uint16_t port_);
+        uint8_t response_code;
+        std::string address;
+        uint16_t port;
+    };
+
+    class socks_response_decoder_t
+    {
+        public:
+            socks_response_decoder_t ();
+            int input (fd_t fd_);
+            bool message_ready () const;
+            socks_response_t decode ();
+            void reset ();
+
+        private:
+            uint8_t buf [4 + 256 + 2];
+            size_t bytes_read;
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socks_connecter.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socks_connecter.cpp
new file mode 100644
index 00000000..a3b70436
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socks_connecter.cpp
@@ -0,0 +1,478 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <new>
+#include <string>
+
+#include "socks_connecter.hpp"
+#include "stream_engine.hpp"
+#include "platform.hpp"
+#include "random.hpp"
+#include "err.hpp"
+#include "ip.hpp"
+#include "tcp.hpp"
+#include "address.hpp"
+#include "tcp_address.hpp"
+#include "session_base.hpp"
+#include "socks.hpp"
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#endif
+
+zmq::socks_connecter_t::socks_connecter_t (class io_thread_t *io_thread_,
+      class session_base_t *session_, const options_t &options_,
+      address_t *addr_, address_t *proxy_addr_, bool delayed_start_) :
+    own_t (io_thread_, options_),
+    io_object_t (io_thread_),
+    addr (addr_),
+    proxy_addr (proxy_addr_),
+    status (unplugged),
+    s (retired_fd),
+    delayed_start (delayed_start_),
+    session (session_),
+    current_reconnect_ivl (options.reconnect_ivl)
+{
+    zmq_assert (addr);
+    zmq_assert (addr->protocol == "tcp");
+    proxy_addr->to_string (endpoint);
+    socket = session->get_socket ();
+}
+
+zmq::socks_connecter_t::~socks_connecter_t ()
+{
+    zmq_assert (s == retired_fd);
+    delete proxy_addr;
+}
+
+void zmq::socks_connecter_t::process_plug ()
+{
+    if (delayed_start)
+        start_timer ();
+    else
+        initiate_connect ();
+}
+
+void zmq::socks_connecter_t::process_term (int linger_)
+{
+    switch (status) {
+        case unplugged:
+            break;
+        case waiting_for_reconnect_time:
+            cancel_timer (reconnect_timer_id);
+            break;
+        case waiting_for_proxy_connection:
+        case sending_greeting:
+        case waiting_for_choice:
+        case sending_request:
+        case waiting_for_response:
+            rm_fd (handle);
+            if (s != retired_fd)
+                close ();
+            break;
+    }
+
+    own_t::process_term (linger_);
+}
+
+void zmq::socks_connecter_t::in_event ()
+{
+    zmq_assert (status != unplugged
+             && status != waiting_for_reconnect_time);
+
+    if (status == waiting_for_choice) {
+        const int rc = choice_decoder.input (s);
+        if (rc == 0 || rc == -1)
+            error ();
+        else
+        if (choice_decoder.message_ready ()) {
+             const socks_choice_t choice = choice_decoder.decode ();
+             const int rc = process_server_response (choice);
+             if (rc == -1)
+                 error ();
+             else {
+                 std::string hostname = "";
+                 uint16_t port = 0;
+                 if (parse_address (addr->address, hostname, port) == -1)
+                     error ();
+                 else {
+                     request_encoder.encode (
+                         socks_request_t (1, hostname, port));
+                     reset_pollin (handle);
+                     set_pollout (handle);
+                     status = sending_request;
+                 }
+             }
+        }
+    }
+    else
+    if (status == waiting_for_response) {
+        const int rc = response_decoder.input (s);
+        if (rc == 0 || rc == -1)
+            error ();
+        else
+        if (response_decoder.message_ready ()) {
+            const socks_response_t response = response_decoder.decode ();
+            const int rc = process_server_response (response);
+            if (rc == -1)
+                error ();
+            else {
+                //  Remember our fd for ZMQ_SRCFD in messages
+                socket->set_fd (s);
+
+                //  Create the engine object for this connection.
+                stream_engine_t *engine = new (std::nothrow)
+                    stream_engine_t (s, options, endpoint);
+                alloc_assert (engine);
+
+                //  Attach the engine to the corresponding session object.
+                send_attach (session, engine);
+
+                socket->event_connected (endpoint, s);
+
+                rm_fd (handle);
+                s = -1;
+                status = unplugged;
+
+                //  Shut the connecter down.
+                terminate ();
+            }
+        }
+    }
+    else
+        error ();
+}
+
+void zmq::socks_connecter_t::out_event ()
+{
+    zmq_assert (status == waiting_for_proxy_connection
+             || status == sending_greeting
+             || status == sending_request);
+
+    if (status == waiting_for_proxy_connection) {
+        const int rc = check_proxy_connection ();
+        if (rc == -1)
+            error ();
+        else {
+            greeting_encoder.encode (
+                socks_greeting_t (socks_no_auth_required));
+            status = sending_greeting;
+        }
+    }
+    else
+    if (status == sending_greeting) {
+        zmq_assert (greeting_encoder.has_pending_data ());
+        const int rc = greeting_encoder.output (s);
+        if (rc == -1 || rc == 0)
+            error ();
+        else
+        if (!greeting_encoder.has_pending_data ()) {
+            reset_pollout (handle);
+            set_pollin (handle);
+            status = waiting_for_choice;
+        }
+    }
+    else {
+        zmq_assert (request_encoder.has_pending_data ());
+        const int rc = request_encoder.output (s);
+        if (rc == -1 || rc == 0)
+            error ();
+        else
+        if (!request_encoder.has_pending_data ()) {
+            reset_pollout (handle);
+            set_pollin (handle);
+            status = waiting_for_response;
+        }
+    }
+}
+
+void zmq::socks_connecter_t::initiate_connect ()
+{
+    //  Open the connecting socket.
+    const int rc = connect_to_proxy ();
+
+    //  Connect may succeed in synchronous manner.
+    if (rc == 0) {
+        handle = add_fd (s);
+        set_pollout (handle);
+        status = sending_greeting;
+    }
+    //  Connection establishment may be delayed. Poll for its completion.
+    else
+    if (errno == EINPROGRESS) {
+        handle = add_fd (s);
+        set_pollout (handle);
+        status = waiting_for_proxy_connection;
+        socket->event_connect_delayed (endpoint, zmq_errno ());
+    }
+    //  Handle any other error condition by eventual reconnect.
+    else {
+        if (s != retired_fd)
+            close ();
+        start_timer ();
+    }
+}
+
+int zmq::socks_connecter_t::process_server_response (
+        const socks_choice_t &response)
+{
+    //  We do not support any authentication method for now.
+    return response.method == 0? 0: -1;
+}
+
+int zmq::socks_connecter_t::process_server_response (
+        const socks_response_t &response)
+{
+    return response.response_code == 0? 0: -1;
+}
+
+void zmq::socks_connecter_t::timer_event (int id_)
+{
+    zmq_assert (status == waiting_for_reconnect_time);
+    zmq_assert (id_ == reconnect_timer_id);
+    initiate_connect ();
+}
+
+void zmq::socks_connecter_t::error ()
+{
+    rm_fd (handle);
+    close ();
+    greeting_encoder.reset ();
+    choice_decoder.reset ();
+    request_encoder.reset ();
+    response_decoder.reset ();
+    start_timer ();
+}
+
+void zmq::socks_connecter_t::start_timer ()
+{
+    const int interval = get_new_reconnect_ivl ();
+    add_timer (interval, reconnect_timer_id);
+    status = waiting_for_reconnect_time;
+    socket->event_connect_retried (endpoint, interval);
+}
+
+int zmq::socks_connecter_t::get_new_reconnect_ivl ()
+{
+    //  The new interval is the current interval + random value.
+    const int interval = current_reconnect_ivl +
+        generate_random () % options.reconnect_ivl;
+
+    //  Only change the current reconnect interval  if the maximum reconnect
+    //  interval was set and if it's larger than the reconnect interval.
+    if (options.reconnect_ivl_max > 0 &&
+        options.reconnect_ivl_max > options.reconnect_ivl)
+        //  Calculate the next interval
+        current_reconnect_ivl =
+            std::min (current_reconnect_ivl * 2, options.reconnect_ivl_max);
+    return interval;
+}
+
+int zmq::socks_connecter_t::connect_to_proxy ()
+{
+    zmq_assert (s == retired_fd);
+
+    //  Resolve the address
+    delete proxy_addr->resolved.tcp_addr;
+    proxy_addr->resolved.tcp_addr = new (std::nothrow) tcp_address_t ();
+    alloc_assert (proxy_addr->resolved.tcp_addr);
+
+    int rc = proxy_addr->resolved.tcp_addr->resolve (
+        proxy_addr->address.c_str (), false, options.ipv6);
+    if (rc != 0) {
+        delete proxy_addr->resolved.tcp_addr;
+        proxy_addr->resolved.tcp_addr = NULL;
+        return -1;
+    }
+    zmq_assert (proxy_addr->resolved.tcp_addr != NULL);
+    const tcp_address_t *tcp_addr = proxy_addr->resolved.tcp_addr;
+
+    //  Create the socket.
+    s = open_socket (tcp_addr->family (), SOCK_STREAM, IPPROTO_TCP);
+#ifdef ZMQ_HAVE_WINDOWS
+    if (s == INVALID_SOCKET)
+        return -1;
+#else
+    if (s == -1)
+        return -1;
+#endif
+
+    //  On some systems, IPv4 mapping in IPv6 sockets is disabled by default.
+    //  Switch it on in such cases.
+    if (tcp_addr->family () == AF_INET6)
+        enable_ipv4_mapping (s);
+
+    // Set the IP Type-Of-Service priority for this socket
+    if (options.tos != 0)
+        set_ip_type_of_service (s, options.tos);
+
+    // Set the socket to non-blocking mode so that we get async connect().
+    unblock_socket (s);
+
+    //  Set the socket buffer limits for the underlying socket.
+    if (options.sndbuf != 0)
+        set_tcp_send_buffer (s, options.sndbuf);
+    if (options.rcvbuf != 0)
+        set_tcp_receive_buffer (s, options.rcvbuf);
+
+    // Set the IP Type-Of-Service for the underlying socket
+    if (options.tos != 0)
+        set_ip_type_of_service (s, options.tos);
+
+    // Set a source address for conversations
+    if (tcp_addr->has_src_addr ()) {
+        rc = ::bind (s, tcp_addr->src_addr (), tcp_addr->src_addrlen ());
+        if (rc == -1) {
+            close ();
+            return -1;
+        }
+    }
+
+    //  Connect to the remote peer.
+    rc = ::connect (s, tcp_addr->addr (), tcp_addr->addrlen ());
+
+    //  Connect was successfull immediately.
+    if (rc == 0)
+        return 0;
+
+    //  Translate error codes indicating asynchronous connect has been
+    //  launched to a uniform EINPROGRESS.
+#ifdef ZMQ_HAVE_WINDOWS
+    const int error_code = WSAGetLastError ();
+    if (error_code == WSAEINPROGRESS || error_code == WSAEWOULDBLOCK)
+        errno = EINPROGRESS;
+    else {
+        errno = wsa_error_to_errno (error_code);
+        close ();
+    }
+#else
+    if (errno == EINTR)
+        errno = EINPROGRESS;
+#endif
+    return -1;
+}
+
+zmq::fd_t zmq::socks_connecter_t::check_proxy_connection ()
+{
+    //  Async connect has finished. Check whether an error occurred
+    int err = 0;
+#ifdef ZMQ_HAVE_HPUX
+    int len = sizeof err;
+#else
+    socklen_t len = sizeof err;
+#endif
+
+    const int rc = getsockopt (s, SOL_SOCKET, SO_ERROR, (char*) &err, &len);
+
+    //  Assert if the error was caused by 0MQ bug.
+    //  Networking problems are OK. No need to assert.
+#ifdef ZMQ_HAVE_WINDOWS
+    zmq_assert (rc == 0);
+    if (err != 0) {
+        wsa_assert (err == WSAECONNREFUSED
+                 || err == WSAETIMEDOUT
+                 || err == WSAECONNABORTED
+                 || err == WSAEHOSTUNREACH
+                 || err == WSAENETUNREACH
+                 || err == WSAENETDOWN
+                 || err == WSAEACCES
+                 || err == WSAEINVAL
+                 || err == WSAEADDRINUSE);
+        return -1;
+    }
+#else
+    //  Following code should handle both Berkeley-derived socket
+    //  implementations and Solaris.
+    if (rc == -1)
+        err = errno;
+    if (err != 0) {
+        errno = err;
+        errno_assert (
+            errno == ECONNREFUSED ||
+            errno == ECONNRESET ||
+            errno == ETIMEDOUT ||
+            errno == EHOSTUNREACH ||
+            errno == ENETUNREACH ||
+            errno == ENETDOWN ||
+            errno == EINVAL);
+        return -1;
+    }
+#endif
+
+    tune_tcp_socket (s);
+    tune_tcp_keepalives (s, options.tcp_keepalive, options.tcp_keepalive_cnt,
+        options.tcp_keepalive_idle, options.tcp_keepalive_intvl);
+
+    return 0;
+}
+
+void zmq::socks_connecter_t::close ()
+{
+    zmq_assert (s != retired_fd);
+#ifdef ZMQ_HAVE_WINDOWS
+    const int rc = closesocket (s);
+    wsa_assert (rc != SOCKET_ERROR);
+#else
+    const int rc = ::close (s);
+    errno_assert (rc == 0);
+#endif
+    socket->event_closed (endpoint, s);
+    s = retired_fd;
+}
+
+int zmq::socks_connecter_t::parse_address (
+        const std::string &address_, std::string &hostname_, uint16_t &port_)
+{
+    //  Find the ':' at end that separates address from the port number.
+    const size_t idx = address_.rfind (':');
+    if (idx == std::string::npos) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    //  Extract hostname
+    if (idx < 2 || address_ [0] != '[' || address_ [idx - 1] != ']')
+        hostname_ = address_.substr (0, idx);
+    else
+        hostname_ = address_.substr (1, idx - 2);
+
+    //  Separate the hostname/port.
+    const std::string port_str = address_.substr (idx + 1);
+    //  Parse the port number (0 is not a valid port).
+    port_ = (uint16_t) atoi (port_str.c_str ());
+    if (port_ == 0) {
+        errno = EINVAL;
+        return -1;
+    }
+    return 0;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socks_connecter.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socks_connecter.hpp
new file mode 100644
index 00000000..a3c5a94f
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/socks_connecter.hpp
@@ -0,0 +1,164 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __SOCKS_CONNECTER_HPP_INCLUDED__
+#define __SOCKS_CONNECTER_HPP_INCLUDED__
+
+#include "fd.hpp"
+#include "io_object.hpp"
+#include "own.hpp"
+#include "stdint.hpp"
+#include "../include/zmq.h"
+#include "socks.hpp"
+
+namespace zmq
+{
+
+    class io_thread_t;
+    class session_base_t;
+    struct address_t;
+
+    class socks_connecter_t : public own_t, public io_object_t
+    {
+    public:
+
+        //  If 'delayed_start' is true connecter first waits for a while,
+        //  then starts connection process.
+        socks_connecter_t (zmq::io_thread_t *io_thread_,
+            zmq::session_base_t *session_, const options_t &options_,
+            address_t *addr_, address_t *proxy_addr_,  bool delayed_start_);
+        ~socks_connecter_t ();
+
+    private:
+        enum {
+            unplugged,
+            waiting_for_reconnect_time,
+            waiting_for_proxy_connection,
+            sending_greeting,
+            waiting_for_choice,
+            sending_request,
+            waiting_for_response
+        };
+
+        //  ID of the timer used to delay the reconnection.
+        enum { reconnect_timer_id = 1 };
+
+        //  Method ID
+        enum { socks_no_auth_required = 0 };
+
+        //  Handlers for incoming commands.
+        virtual void process_plug ();
+        virtual void process_term (int linger_);
+
+        //  Handlers for I/O events.
+        virtual void in_event ();
+        virtual void out_event ();
+        virtual void timer_event (int id_);
+
+        //  Internal function to start the actual connection establishment.
+        void initiate_connect ();
+
+        int process_server_response (const socks_choice_t &response);
+        int process_server_response (const socks_response_t &response);
+
+        int parse_address (const std::string &address_,
+                std::string &hostname_, uint16_t &port_);
+
+        int connect_to_proxy ();
+
+        void error ();
+
+        //  Internal function to start reconnect timer
+        void start_timer ();
+
+        //  Internal function to return a reconnect backoff delay.
+        //  Will modify the current_reconnect_ivl used for next call
+        //  Returns the currently used interval
+        int get_new_reconnect_ivl ();
+
+        //  Open TCP connecting socket. Returns -1 in case of error,
+        //  0 if connect was successfull immediately. Returns -1 with
+        //  EAGAIN errno if async connect was launched.
+        int open ();
+
+        //  Close the connecting socket.
+        void close ();
+
+        //  Get the file descriptor of newly created connection. Returns
+        //  retired_fd if the connection was unsuccessfull.
+        zmq::fd_t check_proxy_connection ();
+
+        socks_greeting_encoder_t greeting_encoder;
+        socks_choice_decoder_t choice_decoder;
+        socks_request_encoder_t request_encoder;
+        socks_response_decoder_t response_decoder;
+
+        //  Address to connect to. Owned by session_base_t.
+        address_t *addr;
+
+        //  SOCKS address; owned by this connecter.
+        address_t *proxy_addr;
+
+        int status;
+
+        //  Underlying socket.
+        fd_t s;
+
+        //  Handle corresponding to the listening socket.
+        handle_t handle;
+
+        //  If true file descriptor is registered with the poller and 'handle'
+        //  contains valid value.
+        bool handle_valid;
+
+        //  If true, connecter is waiting a while before trying to connect.
+        const bool delayed_start;
+
+        //  True iff a timer has been started.
+        bool timer_started;
+
+        //  Reference to the session we belong to.
+        zmq::session_base_t *session;
+
+        //  Current reconnect ivl, updated for backoff strategy
+        int current_reconnect_ivl;
+
+        // String representation of endpoint to connect to
+        std::string endpoint;
+
+        // Socket
+        zmq::socket_base_t *socket;
+
+        socks_connecter_t (const socks_connecter_t&);
+        const socks_connecter_t &operator = (const socks_connecter_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stdint.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stdint.hpp
new file mode 100644
index 00000000..955e2bc2
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stdint.hpp
@@ -0,0 +1,72 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_STDINT_HPP_INCLUDED__
+#define __ZMQ_STDINT_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_SOLARIS || defined ZMQ_HAVE_OPENVMS
+
+#include <inttypes.h>
+
+#elif defined _MSC_VER && _MSC_VER < 1600
+
+#ifndef int8_t
+typedef __int8 int8_t;
+#endif
+#ifndef int16_t
+typedef __int16 int16_t;
+#endif
+#ifndef int32_t
+typedef __int32 int32_t;
+#endif
+#ifndef int64_t
+typedef __int64 int64_t;
+#endif
+#ifndef uint8_t
+typedef unsigned __int8 uint8_t;
+#endif
+#ifndef uint16_t
+typedef unsigned __int16 uint16_t;
+#endif
+#ifndef uint32_t
+typedef unsigned __int32 uint32_t;
+#endif
+#ifndef uint64_t
+typedef unsigned __int64 uint64_t;
+#endif
+
+#else
+
+#include <stdint.h>
+
+#endif
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stream.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stream.cpp
new file mode 100644
index 00000000..112a116f
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stream.cpp
@@ -0,0 +1,307 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "stream.hpp"
+#include "pipe.hpp"
+#include "wire.hpp"
+#include "random.hpp"
+#include "likely.hpp"
+#include "err.hpp"
+
+zmq::stream_t::stream_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
+    socket_base_t (parent_, tid_, sid_),
+    prefetched (false),
+    identity_sent (false),
+    current_out (NULL),
+    more_out (false),
+    next_rid (generate_random ())
+{
+    options.type = ZMQ_STREAM;
+    options.raw_sock = true;
+
+    prefetched_id.init ();
+    prefetched_msg.init ();
+}
+
+zmq::stream_t::~stream_t ()
+{
+    zmq_assert (outpipes.empty ());
+    prefetched_id.close ();
+    prefetched_msg.close ();
+}
+
+void zmq::stream_t::xattach_pipe (pipe_t *pipe_, bool subscribe_to_all_)
+{
+    // subscribe_to_all_ is unused
+    (void)subscribe_to_all_;
+
+    zmq_assert (pipe_);
+
+    identify_peer (pipe_);
+    fq.attach (pipe_);
+}
+
+void zmq::stream_t::xpipe_terminated (pipe_t *pipe_)
+{
+    outpipes_t::iterator it = outpipes.find (pipe_->get_identity ());
+    zmq_assert (it != outpipes.end ());
+    outpipes.erase (it);
+    fq.pipe_terminated (pipe_);
+    if (pipe_ == current_out)
+        current_out = NULL;
+}
+
+void zmq::stream_t::xread_activated (pipe_t *pipe_)
+{
+    fq.activated (pipe_);
+}
+
+void zmq::stream_t::xwrite_activated (pipe_t *pipe_)
+{
+    outpipes_t::iterator it;
+    for (it = outpipes.begin (); it != outpipes.end (); ++it)
+        if (it->second.pipe == pipe_)
+            break;
+
+    zmq_assert (it != outpipes.end ());
+    zmq_assert (!it->second.active);
+    it->second.active = true;
+}
+
+int zmq::stream_t::xsend (msg_t *msg_)
+{
+    //  If this is the first part of the message it's the ID of the
+    //  peer to send the message to.
+    if (!more_out) {
+        zmq_assert (!current_out);
+
+        //  If we have malformed message (prefix with no subsequent message)
+        //  then just silently ignore it.
+        //  TODO: The connections should be killed instead.
+        if (msg_->flags () & msg_t::more) {
+
+            //  Find the pipe associated with the identity stored in the prefix.
+            //  If there's no such pipe return an error
+            blob_t identity ((unsigned char*) msg_->data (), msg_->size ());
+            outpipes_t::iterator it = outpipes.find (identity);
+
+            if (it != outpipes.end ()) {
+                current_out = it->second.pipe;
+                if (!current_out->check_write ()) {
+                    it->second.active = false;
+                    current_out = NULL;
+                    errno = EAGAIN;
+                    return -1;
+                }
+            }
+            else {
+                errno = EHOSTUNREACH;
+                return -1;
+            }
+        }
+
+        //  Expect one more message frame.
+        more_out = true;
+
+        int rc = msg_->close ();
+        errno_assert (rc == 0);
+        rc = msg_->init ();
+        errno_assert (rc == 0);
+        return 0;
+    }
+
+    //  Ignore the MORE flag
+    msg_->reset_flags (msg_t::more);
+
+    //  This is the last part of the message.
+    more_out = false;
+
+    //  Push the message into the pipe. If there's no out pipe, just drop it.
+    if (current_out) {
+
+        // Close the remote connection if user has asked to do so
+        // by sending zero length message.
+        // Pending messages in the pipe will be dropped (on receiving term- ack)
+        if (msg_->size () == 0) {
+            current_out->terminate (false);
+            int rc = msg_->close ();
+            errno_assert (rc == 0);
+            rc = msg_->init ();
+            errno_assert (rc == 0);
+            current_out = NULL;
+            return 0;
+        }
+        bool ok = current_out->write (msg_);
+        if (likely (ok))
+            current_out->flush ();
+        current_out = NULL;
+    }
+    else {
+        int rc = msg_->close ();
+        errno_assert (rc == 0);
+    }
+
+    //  Detach the message from the data buffer.
+    int rc = msg_->init ();
+    errno_assert (rc == 0);
+
+    return 0;
+}
+
+int zmq::stream_t::xsetsockopt (int option_, const void *optval_,
+    size_t optvallen_)
+{
+    switch (option_) {
+        case ZMQ_CONNECT_RID:
+            if (optval_ && optvallen_) {
+                connect_rid.assign ((char*) optval_, optvallen_);
+                return 0;
+            }
+            break;
+        default:
+            break;
+    }
+    errno = EINVAL;
+    return -1;
+}
+
+int zmq::stream_t::xrecv (msg_t *msg_)
+{
+    if (prefetched) {
+        if (!identity_sent) {
+            int rc = msg_->move (prefetched_id);
+            errno_assert (rc == 0);
+            identity_sent = true;
+        }
+        else {
+            int rc = msg_->move (prefetched_msg);
+            errno_assert (rc == 0);
+            prefetched = false;
+        }
+        return 0;
+    }
+
+    pipe_t *pipe = NULL;
+    int rc = fq.recvpipe (&prefetched_msg, &pipe);
+    if (rc != 0)
+        return -1;
+
+    zmq_assert (pipe != NULL);
+    zmq_assert ((prefetched_msg.flags () & msg_t::more) == 0);
+
+    //  We have received a frame with TCP data.
+    //  Rather than sendig this frame, we keep it in prefetched
+    //  buffer and send a frame with peer's ID.
+    blob_t identity = pipe->get_identity ();
+    rc = msg_->init_size (identity.size ());
+    errno_assert (rc == 0);
+
+    // forward metadata (if any)
+    metadata_t *metadata = prefetched_msg.metadata();
+    if (metadata)
+        msg_->set_metadata(metadata);
+
+    memcpy (msg_->data (), identity.data (), identity.size ());
+    msg_->set_flags (msg_t::more);
+
+    prefetched = true;
+    identity_sent = true;
+
+    return 0;
+}
+
+bool zmq::stream_t::xhas_in ()
+{
+    //  We may already have a message pre-fetched.
+    if (prefetched)
+        return true;
+
+    //  Try to read the next message.
+    //  The message, if read, is kept in the pre-fetch buffer.
+    pipe_t *pipe = NULL;
+    int rc = fq.recvpipe (&prefetched_msg, &pipe);
+    if (rc != 0)
+        return false;
+
+    zmq_assert (pipe != NULL);
+    zmq_assert ((prefetched_msg.flags () & msg_t::more) == 0);
+
+    blob_t identity = pipe->get_identity ();
+    rc = prefetched_id.init_size (identity.size ());
+    errno_assert (rc == 0);
+
+    // forward metadata (if any)
+    metadata_t *metadata = prefetched_msg.metadata();
+    if (metadata)
+        prefetched_id.set_metadata(metadata);
+
+    memcpy (prefetched_id.data (), identity.data (), identity.size ());
+    prefetched_id.set_flags (msg_t::more);
+
+    prefetched = true;
+    identity_sent = false;
+
+    return true;
+}
+
+bool zmq::stream_t::xhas_out ()
+{
+    //  In theory, STREAM socket is always ready for writing. Whether actual
+    //  attempt to write succeeds depends on which pipe the message is going
+    //  to be routed to.
+    return true;
+}
+
+void zmq::stream_t::identify_peer (pipe_t *pipe_)
+{
+    //  Always assign identity for raw-socket
+    unsigned char buffer [5];
+    buffer [0] = 0;
+    blob_t identity;
+    if (connect_rid.length ()) {
+        identity = blob_t ((unsigned char*) connect_rid.c_str(),
+            connect_rid.length ());
+        connect_rid.clear ();
+        outpipes_t::iterator it = outpipes.find (identity);
+        if (it != outpipes.end ())
+            zmq_assert(false);
+    }
+    else {
+        put_uint32 (buffer + 1, next_rid++);
+        identity = blob_t (buffer, sizeof buffer);
+        memcpy (options.identity, identity.data (), identity.size ());
+        options.identity_size = identity.size ();
+    }
+    pipe_->set_identity (identity);
+    //  Add the record into output pipes lookup table
+    outpipe_t outpipe = {pipe_, true};
+    const bool ok = outpipes.insert (
+        outpipes_t::value_type (identity, outpipe)).second;
+    zmq_assert (ok);
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stream.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stream.hpp
new file mode 100644
index 00000000..741a56a2
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stream.hpp
@@ -0,0 +1,107 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_STREAM_HPP_INCLUDED__
+#define __ZMQ_STREAM_HPP_INCLUDED__
+
+#include <map>
+
+#include "router.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class pipe_t;
+
+    class stream_t :
+        public socket_base_t
+    {
+    public:
+
+        stream_t (zmq::ctx_t *parent_, uint32_t tid_, int sid);
+        ~stream_t ();
+
+        //  Overrides of functions from socket_base_t.
+        void xattach_pipe (zmq::pipe_t *pipe_, bool subscribe_to_all_);
+        int xsend (zmq::msg_t *msg_);
+        int xrecv (zmq::msg_t *msg_);
+        bool xhas_in ();
+        bool xhas_out ();
+        void xread_activated (zmq::pipe_t *pipe_);
+        void xwrite_activated (zmq::pipe_t *pipe_);
+        void xpipe_terminated (zmq::pipe_t *pipe_);
+        int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
+    private:
+        //  Generate peer's id and update lookup map
+        void identify_peer (pipe_t *pipe_);
+
+        //  Fair queueing object for inbound pipes.
+        fq_t fq;
+
+        //  True iff there is a message held in the pre-fetch buffer.
+        bool prefetched;
+
+        //  If true, the receiver got the message part with
+        //  the peer's identity.
+        bool identity_sent;
+
+        //  Holds the prefetched identity.
+        msg_t prefetched_id;
+
+        //  Holds the prefetched message.
+        msg_t prefetched_msg;
+
+        struct outpipe_t
+        {
+            zmq::pipe_t *pipe;
+            bool active;
+        };
+
+        //  Outbound pipes indexed by the peer IDs.
+        typedef std::map <blob_t, outpipe_t> outpipes_t;
+        outpipes_t outpipes;
+
+        //  The pipe we are currently writing to.
+        zmq::pipe_t *current_out;
+
+        //  If true, more outgoing message parts are expected.
+        bool more_out;
+
+        //  Routing IDs are generated. It's a simple increment and wrap-over
+        //  algorithm. This value is the next ID to use (if not used already).
+        uint32_t next_rid;
+
+        stream_t (const stream_t&);
+        const stream_t &operator = (const stream_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stream_engine.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stream_engine.cpp
new file mode 100644
index 00000000..87186cc0
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stream_engine.cpp
@@ -0,0 +1,960 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <unistd.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <netinet/tcp.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <fcntl.h>
+#if defined ZMQ_HAVE_OPENBSD
+#define ucred sockpeercred
+#endif
+#endif
+
+#include <string.h>
+#include <new>
+#include <sstream>
+#include <iostream>
+
+#include "stream_engine.hpp"
+#include "io_thread.hpp"
+#include "session_base.hpp"
+#include "v1_encoder.hpp"
+#include "v1_decoder.hpp"
+#include "v2_encoder.hpp"
+#include "v2_decoder.hpp"
+#include "null_mechanism.hpp"
+#include "plain_client.hpp"
+#include "plain_server.hpp"
+#include "gssapi_client.hpp"
+#include "gssapi_server.hpp"
+#include "curve_client.hpp"
+#include "curve_server.hpp"
+#include "raw_decoder.hpp"
+#include "raw_encoder.hpp"
+#include "config.hpp"
+#include "err.hpp"
+#include "ip.hpp"
+#include "tcp.hpp"
+#include "likely.hpp"
+#include "wire.hpp"
+
+zmq::stream_engine_t::stream_engine_t (fd_t fd_, const options_t &options_,
+                                       const std::string &endpoint_) :
+    s (fd_),
+    inpos (NULL),
+    insize (0),
+    decoder (NULL),
+    outpos (NULL),
+    outsize (0),
+    encoder (NULL),
+    metadata (NULL),
+    handshaking (true),
+    greeting_size (v2_greeting_size),
+    greeting_bytes_read (0),
+    session (NULL),
+    options (options_),
+    endpoint (endpoint_),
+    plugged (false),
+    next_msg (&stream_engine_t::identity_msg),
+    process_msg (&stream_engine_t::process_identity_msg),
+    io_error (false),
+    subscription_required (false),
+    mechanism (NULL),
+    input_stopped (false),
+    output_stopped (false),
+    has_handshake_timer (false),
+    socket (NULL)
+{
+    int rc = tx_msg.init ();
+    errno_assert (rc == 0);
+
+    //  Put the socket into non-blocking mode.
+    unblock_socket (s);
+
+    int family = get_peer_ip_address (s, peer_address);
+    if (family == 0)
+        peer_address.clear();
+#if defined ZMQ_HAVE_SO_PEERCRED
+    else
+    if (family == PF_UNIX) {
+        struct ucred cred;
+        socklen_t size = sizeof (cred);
+        if (!getsockopt (s, SOL_SOCKET, SO_PEERCRED, &cred, &size)) {
+            std::ostringstream buf;
+            buf << ":" << cred.uid << ":" << cred.gid << ":" << cred.pid;
+            peer_address += buf.str ();
+        }
+    }
+#elif defined ZMQ_HAVE_LOCAL_PEERCRED
+    else
+    if (family == PF_UNIX) {
+        struct xucred cred;
+        socklen_t size = sizeof (cred);
+        if (!getsockopt (s, 0, LOCAL_PEERCRED, &cred, &size)
+                && cred.cr_version == XUCRED_VERSION) {
+            std::ostringstream buf;
+            buf << ":" << cred.cr_uid << ":";
+            if (cred.cr_ngroups > 0)
+                buf << cred.cr_groups[0];
+            buf << ":";
+            peer_address += buf.str ();
+        }
+    }
+#endif
+
+#ifdef SO_NOSIGPIPE
+    //  Make sure that SIGPIPE signal is not generated when writing to a
+    //  connection that was already closed by the peer.
+    int set = 1;
+    rc = setsockopt (s, SOL_SOCKET, SO_NOSIGPIPE, &set, sizeof (int));
+    errno_assert (rc == 0);
+#endif
+}
+
+zmq::stream_engine_t::~stream_engine_t ()
+{
+    zmq_assert (!plugged);
+
+    if (s != retired_fd) {
+#ifdef ZMQ_HAVE_WINDOWS
+        int rc = closesocket (s);
+        wsa_assert (rc != SOCKET_ERROR);
+#else
+        int rc = close (s);
+        errno_assert (rc == 0);
+#endif
+        s = retired_fd;
+    }
+
+    int rc = tx_msg.close ();
+    errno_assert (rc == 0);
+
+    //  Drop reference to metadata and destroy it if we are
+    //  the only user.
+    if (metadata != NULL)
+        if (metadata->drop_ref ())
+            delete metadata;
+
+    delete encoder;
+    delete decoder;
+    delete mechanism;
+}
+
+void zmq::stream_engine_t::plug (io_thread_t *io_thread_,
+    session_base_t *session_)
+{
+    zmq_assert (!plugged);
+    plugged = true;
+
+    //  Connect to session object.
+    zmq_assert (!session);
+    zmq_assert (session_);
+    session = session_;
+    socket = session-> get_socket ();
+
+    //  Connect to I/O threads poller object.
+    io_object_t::plug (io_thread_);
+    handle = add_fd (s);
+    io_error = false;
+
+    if (options.raw_sock) {
+        // no handshaking for raw sock, instantiate raw encoder and decoders
+        encoder = new (std::nothrow) raw_encoder_t (out_batch_size);
+        alloc_assert (encoder);
+
+        decoder = new (std::nothrow) raw_decoder_t (in_batch_size);
+        alloc_assert (decoder);
+
+        // disable handshaking for raw socket
+        handshaking = false;
+
+        next_msg = &stream_engine_t::pull_msg_from_session;
+        process_msg = &stream_engine_t::push_raw_msg_to_session;
+
+        if (!peer_address.empty()) {
+            //  Compile metadata.
+            typedef metadata_t::dict_t properties_t;
+            properties_t properties;
+            properties.insert(std::make_pair("Peer-Address", peer_address));
+            zmq_assert (metadata == NULL);
+            metadata = new (std::nothrow) metadata_t (properties);
+        }
+
+        //  For raw sockets, send an initial 0-length message to the
+        // application so that it knows a peer has connected.
+        msg_t connector;
+        connector.init();
+        push_raw_msg_to_session (&connector);
+        connector.close();
+        session->flush ();
+    }
+    else {
+        // start optional timer, to prevent handshake hanging on no input
+        set_handshake_timer ();
+
+        //  Send the 'length' and 'flags' fields of the identity message.
+        //  The 'length' field is encoded in the long format.
+        outpos = greeting_send;
+        outpos [outsize++] = 0xff;
+        put_uint64 (&outpos [outsize], options.identity_size + 1);
+        outsize += 8;
+        outpos [outsize++] = 0x7f;
+    }
+
+    set_pollin (handle);
+    set_pollout (handle);
+    //  Flush all the data that may have been already received downstream.
+    in_event ();
+}
+
+void zmq::stream_engine_t::unplug ()
+{
+    zmq_assert (plugged);
+    plugged = false;
+
+    //  Cancel all timers.
+    if (has_handshake_timer) {
+        cancel_timer (handshake_timer_id);
+        has_handshake_timer = false;
+    }
+
+    //  Cancel all fd subscriptions.
+    if (!io_error)
+        rm_fd (handle);
+
+    //  Disconnect from I/O threads poller object.
+    io_object_t::unplug ();
+
+    session = NULL;
+}
+
+void zmq::stream_engine_t::terminate ()
+{
+    unplug ();
+    delete this;
+}
+
+void zmq::stream_engine_t::in_event ()
+{
+    zmq_assert (!io_error);
+
+    //  If still handshaking, receive and process the greeting message.
+    if (unlikely (handshaking))
+        if (!handshake ())
+            return;
+
+    zmq_assert (decoder);
+
+    //  If there has been an I/O error, stop polling.
+    if (input_stopped) {
+        rm_fd (handle);
+        io_error = true;
+        return;
+    }
+
+    //  If there's no data to process in the buffer...
+    if (!insize) {
+
+        //  Retrieve the buffer and read as much data as possible.
+        //  Note that buffer can be arbitrarily large. However, we assume
+        //  the underlying TCP layer has fixed buffer size and thus the
+        //  number of bytes read will be always limited.
+        size_t bufsize = 0;
+        decoder->get_buffer (&inpos, &bufsize);
+
+        const int rc = tcp_read (s, inpos, bufsize);
+        if (rc == 0) {
+            error (connection_error);
+            return;
+        }
+        if (rc == -1) {
+            if (errno != EAGAIN)
+                error (connection_error);
+            return;
+        }
+
+        //  Adjust input size
+        insize = static_cast <size_t> (rc);
+    }
+
+    int rc = 0;
+    size_t processed = 0;
+
+    while (insize > 0) {
+        rc = decoder->decode (inpos, insize, processed);
+        zmq_assert (processed <= insize);
+        inpos += processed;
+        insize -= processed;
+        if (rc == 0 || rc == -1)
+            break;
+        rc = (this->*process_msg) (decoder->msg ());
+        if (rc == -1)
+            break;
+    }
+
+    //  Tear down the connection if we have failed to decode input data
+    //  or the session has rejected the message.
+    if (rc == -1) {
+        if (errno != EAGAIN) {
+            error (protocol_error);
+            return;
+        }
+        input_stopped = true;
+        reset_pollin (handle);
+    }
+
+    session->flush ();
+}
+
+void zmq::stream_engine_t::out_event ()
+{
+    zmq_assert (!io_error);
+
+    //  If write buffer is empty, try to read new data from the encoder.
+    if (!outsize) {
+
+        //  Even when we stop polling as soon as there is no
+        //  data to send, the poller may invoke out_event one
+        //  more time due to 'speculative write' optimisation.
+        if (unlikely (encoder == NULL)) {
+            zmq_assert (handshaking);
+            return;
+        }
+
+        outpos = NULL;
+        outsize = encoder->encode (&outpos, 0);
+
+        while (outsize < out_batch_size) {
+            if ((this->*next_msg) (&tx_msg) == -1)
+                break;
+            encoder->load_msg (&tx_msg);
+            unsigned char *bufptr = outpos + outsize;
+            size_t n = encoder->encode (&bufptr, out_batch_size - outsize);
+            zmq_assert (n > 0);
+            if (outpos == NULL)
+                outpos = bufptr;
+            outsize += n;
+        }
+
+        //  If there is no data to send, stop polling for output.
+        if (outsize == 0) {
+            output_stopped = true;
+            reset_pollout (handle);
+            return;
+        }
+    }
+
+    //  If there are any data to write in write buffer, write as much as
+    //  possible to the socket. Note that amount of data to write can be
+    //  arbitrarily large. However, we assume that underlying TCP layer has
+    //  limited transmission buffer and thus the actual number of bytes
+    //  written should be reasonably modest.
+    const int nbytes = tcp_write (s, outpos, outsize);
+
+    //  IO error has occurred. We stop waiting for output events.
+    //  The engine is not terminated until we detect input error;
+    //  this is necessary to prevent losing incoming messages.
+    if (nbytes == -1) {
+        reset_pollout (handle);
+        return;
+    }
+
+    outpos += nbytes;
+    outsize -= nbytes;
+
+    //  If we are still handshaking and there are no data
+    //  to send, stop polling for output.
+    if (unlikely (handshaking))
+        if (outsize == 0)
+            reset_pollout (handle);
+}
+
+void zmq::stream_engine_t::restart_output ()
+{
+    if (unlikely (io_error))
+        return;
+
+    if (likely (output_stopped)) {
+        set_pollout (handle);
+        output_stopped = false;
+    }
+
+    //  Speculative write: The assumption is that at the moment new message
+    //  was sent by the user the socket is probably available for writing.
+    //  Thus we try to write the data to socket avoiding polling for POLLOUT.
+    //  Consequently, the latency should be better in request/reply scenarios.
+    out_event ();
+}
+
+void zmq::stream_engine_t::restart_input ()
+{
+    zmq_assert (input_stopped);
+    zmq_assert (session != NULL);
+    zmq_assert (decoder != NULL);
+
+    int rc = (this->*process_msg) (decoder->msg ());
+    if (rc == -1) {
+        if (errno == EAGAIN)
+            session->flush ();
+        else
+            error (protocol_error);
+        return;
+    }
+
+    while (insize > 0) {
+        size_t processed = 0;
+        rc = decoder->decode (inpos, insize, processed);
+        zmq_assert (processed <= insize);
+        inpos += processed;
+        insize -= processed;
+        if (rc == 0 || rc == -1)
+            break;
+        rc = (this->*process_msg) (decoder->msg ());
+        if (rc == -1)
+            break;
+    }
+
+    if (rc == -1 && errno == EAGAIN)
+        session->flush ();
+    else
+    if (io_error)
+        error (connection_error);
+    else
+    if (rc == -1)
+        error (protocol_error);
+    else {
+        input_stopped = false;
+        set_pollin (handle);
+        session->flush ();
+
+        //  Speculative read.
+        in_event ();
+    }
+}
+
+bool zmq::stream_engine_t::handshake ()
+{
+    zmq_assert (handshaking);
+    zmq_assert (greeting_bytes_read < greeting_size);
+    //  Receive the greeting.
+    while (greeting_bytes_read < greeting_size) {
+        const int n = tcp_read (s, greeting_recv + greeting_bytes_read,
+                                greeting_size - greeting_bytes_read);
+        if (n == 0) {
+            error (connection_error);
+            return false;
+        }
+        if (n == -1) {
+            if (errno != EAGAIN)
+                error (connection_error);
+            return false;
+        }
+
+        greeting_bytes_read += n;
+
+        //  We have received at least one byte from the peer.
+        //  If the first byte is not 0xff, we know that the
+        //  peer is using unversioned protocol.
+        if (greeting_recv [0] != 0xff)
+            break;
+
+        if (greeting_bytes_read < signature_size)
+            continue;
+
+        //  Inspect the right-most bit of the 10th byte (which coincides
+        //  with the 'flags' field if a regular message was sent).
+        //  Zero indicates this is a header of identity message
+        //  (i.e. the peer is using the unversioned protocol).
+        if (!(greeting_recv [9] & 0x01))
+            break;
+
+        //  The peer is using versioned protocol.
+        //  Send the major version number.
+        if (outpos + outsize == greeting_send + signature_size) {
+            if (outsize == 0)
+                set_pollout (handle);
+            outpos [outsize++] = 3;     //  Major version number
+        }
+
+        if (greeting_bytes_read > signature_size) {
+            if (outpos + outsize == greeting_send + signature_size + 1) {
+                if (outsize == 0)
+                    set_pollout (handle);
+
+                //  Use ZMTP/2.0 to talk to older peers.
+                if (greeting_recv [10] == ZMTP_1_0
+                ||  greeting_recv [10] == ZMTP_2_0)
+                    outpos [outsize++] = options.type;
+                else {
+                    outpos [outsize++] = 0; //  Minor version number
+                    memset (outpos + outsize, 0, 20);
+
+                    zmq_assert (options.mechanism == ZMQ_NULL
+                            ||  options.mechanism == ZMQ_PLAIN
+                            ||  options.mechanism == ZMQ_CURVE
+                            ||  options.mechanism == ZMQ_GSSAPI);
+
+                    if (options.mechanism == ZMQ_NULL)
+                        memcpy (outpos + outsize, "NULL", 4);
+                    else
+                    if (options.mechanism == ZMQ_PLAIN)
+                        memcpy (outpos + outsize, "PLAIN", 5);
+                    else
+                    if (options.mechanism == ZMQ_GSSAPI)
+                        memcpy (outpos + outsize, "GSSAPI", 6);
+                    else
+                    if (options.mechanism == ZMQ_CURVE)
+                        memcpy (outpos + outsize, "CURVE", 5);
+                    outsize += 20;
+                    memset (outpos + outsize, 0, 32);
+                    outsize += 32;
+                    greeting_size = v3_greeting_size;
+                }
+            }
+        }
+    }
+
+    //  Position of the revision field in the greeting.
+    const size_t revision_pos = 10;
+
+    //  Is the peer using ZMTP/1.0 with no revision number?
+    //  If so, we send and receive rest of identity message
+    if (greeting_recv [0] != 0xff || !(greeting_recv [9] & 0x01)) {
+        if (session->zap_enabled ()) {
+           // reject ZMTP 1.0 connections if ZAP is enabled
+           error (protocol_error);
+           return false;
+        }
+
+        encoder = new (std::nothrow) v1_encoder_t (out_batch_size);
+        alloc_assert (encoder);
+
+        decoder = new (std::nothrow) v1_decoder_t (in_batch_size, options.maxmsgsize);
+        alloc_assert (decoder);
+
+        //  We have already sent the message header.
+        //  Since there is no way to tell the encoder to
+        //  skip the message header, we simply throw that
+        //  header data away.
+        const size_t header_size = options.identity_size + 1 >= 255 ? 10 : 2;
+        unsigned char tmp [10], *bufferp = tmp;
+
+        //  Prepare the identity message and load it into encoder.
+        //  Then consume bytes we have already sent to the peer.
+        const int rc = tx_msg.init_size (options.identity_size);
+        zmq_assert (rc == 0);
+        memcpy (tx_msg.data (), options.identity, options.identity_size);
+        encoder->load_msg (&tx_msg);
+        size_t buffer_size = encoder->encode (&bufferp, header_size);
+        zmq_assert (buffer_size == header_size);
+
+        //  Make sure the decoder sees the data we have already received.
+        inpos = greeting_recv;
+        insize = greeting_bytes_read;
+
+        //  To allow for interoperability with peers that do not forward
+        //  their subscriptions, we inject a phantom subscription message
+        //  message into the incoming message stream.
+        if (options.type == ZMQ_PUB || options.type == ZMQ_XPUB)
+            subscription_required = true;
+
+        //  We are sending our identity now and the next message
+        //  will come from the socket.
+        next_msg = &stream_engine_t::pull_msg_from_session;
+
+        //  We are expecting identity message.
+        process_msg = &stream_engine_t::process_identity_msg;
+    }
+    else
+    if (greeting_recv [revision_pos] == ZMTP_1_0) {
+        if (session->zap_enabled ()) {
+           // reject ZMTP 1.0 connections if ZAP is enabled
+           error (protocol_error);
+           return false;
+        }
+
+        encoder = new (std::nothrow) v1_encoder_t (
+            out_batch_size);
+        alloc_assert (encoder);
+
+        decoder = new (std::nothrow) v1_decoder_t (
+            in_batch_size, options.maxmsgsize);
+        alloc_assert (decoder);
+    }
+    else
+    if (greeting_recv [revision_pos] == ZMTP_2_0) {
+        if (session->zap_enabled ()) {
+           // reject ZMTP 2.0 connections if ZAP is enabled
+           error (protocol_error);
+           return false;
+        }
+
+        encoder = new (std::nothrow) v2_encoder_t (out_batch_size);
+        alloc_assert (encoder);
+
+        decoder = new (std::nothrow) v2_decoder_t (
+            in_batch_size, options.maxmsgsize);
+        alloc_assert (decoder);
+    }
+    else {
+        encoder = new (std::nothrow) v2_encoder_t (out_batch_size);
+        alloc_assert (encoder);
+
+        decoder = new (std::nothrow) v2_decoder_t (
+            in_batch_size, options.maxmsgsize);
+        alloc_assert (decoder);
+
+        if (options.mechanism == ZMQ_NULL
+        &&  memcmp (greeting_recv + 12, "NULL\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 20) == 0) {
+            mechanism = new (std::nothrow)
+                null_mechanism_t (session, peer_address, options);
+            alloc_assert (mechanism);
+        }
+        else
+        if (options.mechanism == ZMQ_PLAIN
+        &&  memcmp (greeting_recv + 12, "PLAIN\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 20) == 0) {
+            if (options.as_server)
+                mechanism = new (std::nothrow)
+                    plain_server_t (session, peer_address, options);
+            else
+                mechanism = new (std::nothrow)
+                    plain_client_t (options);
+            alloc_assert (mechanism);
+        }
+#ifdef HAVE_LIBSODIUM
+        else
+        if (options.mechanism == ZMQ_CURVE
+        &&  memcmp (greeting_recv + 12, "CURVE\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 20) == 0) {
+            if (options.as_server)
+                mechanism = new (std::nothrow)
+                    curve_server_t (session, peer_address, options);
+            else
+                mechanism = new (std::nothrow) curve_client_t (options);
+            alloc_assert (mechanism);
+        }
+#endif
+#ifdef HAVE_LIBGSSAPI_KRB5
+        else
+        if (options.mechanism == ZMQ_GSSAPI
+        &&  memcmp (greeting_recv + 12, "GSSAPI\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 20) == 0) {
+            if (options.as_server)
+                mechanism = new (std::nothrow)
+                    gssapi_server_t (session, peer_address, options);
+            else
+                mechanism = new (std::nothrow) gssapi_client_t (options);
+            alloc_assert (mechanism);
+        }
+#endif
+        else {
+            error (protocol_error);
+            return false;
+        }
+        next_msg = &stream_engine_t::next_handshake_command;
+        process_msg = &stream_engine_t::process_handshake_command;
+    }
+
+    // Start polling for output if necessary.
+    if (outsize == 0)
+        set_pollout (handle);
+
+    //  Handshaking was successful.
+    //  Switch into the normal message flow.
+    handshaking = false;
+
+    if (has_handshake_timer) {
+        cancel_timer (handshake_timer_id);
+        has_handshake_timer = false;
+    }
+
+    return true;
+}
+
+int zmq::stream_engine_t::identity_msg (msg_t *msg_)
+{
+    int rc = msg_->init_size (options.identity_size);
+    errno_assert (rc == 0);
+    if (options.identity_size > 0)
+        memcpy (msg_->data (), options.identity, options.identity_size);
+    next_msg = &stream_engine_t::pull_msg_from_session;
+    return 0;
+}
+
+int zmq::stream_engine_t::process_identity_msg (msg_t *msg_)
+{
+    if (options.recv_identity) {
+        msg_->set_flags (msg_t::identity);
+        int rc = session->push_msg (msg_);
+        errno_assert (rc == 0);
+    }
+    else {
+        int rc = msg_->close ();
+        errno_assert (rc == 0);
+        rc = msg_->init ();
+        errno_assert (rc == 0);
+    }
+
+    if (subscription_required)
+        process_msg = &stream_engine_t::write_subscription_msg;
+    else
+        process_msg = &stream_engine_t::push_msg_to_session;
+
+    return 0;
+}
+
+int zmq::stream_engine_t::next_handshake_command (msg_t *msg_)
+{
+    zmq_assert (mechanism != NULL);
+
+    if (mechanism->status () == mechanism_t::ready) {
+        mechanism_ready ();
+        return pull_and_encode (msg_);
+    }
+    else
+    if (mechanism->status () == mechanism_t::error) {
+        errno = EPROTO;
+        return -1;
+    }
+    else {
+        const int rc = mechanism->next_handshake_command (msg_);
+        if (rc == 0)
+            msg_->set_flags (msg_t::command);
+        return rc;
+    }
+}
+
+int zmq::stream_engine_t::process_handshake_command (msg_t *msg_)
+{
+    zmq_assert (mechanism != NULL);
+    const int rc = mechanism->process_handshake_command (msg_);
+    if (rc == 0) {
+        if (mechanism->status () == mechanism_t::ready)
+            mechanism_ready ();
+        else
+        if (mechanism->status () == mechanism_t::error) {
+            errno = EPROTO;
+            return -1;
+        }
+        if (output_stopped)
+            restart_output ();
+    }
+
+    return rc;
+}
+
+void zmq::stream_engine_t::zap_msg_available ()
+{
+    zmq_assert (mechanism != NULL);
+
+    const int rc = mechanism->zap_msg_available ();
+    if (rc == -1) {
+        error (protocol_error);
+        return;
+    }
+    if (input_stopped)
+        restart_input ();
+    if (output_stopped)
+        restart_output ();
+}
+
+void zmq::stream_engine_t::mechanism_ready ()
+{
+    if (options.recv_identity) {
+        msg_t identity;
+        mechanism->peer_identity (&identity);
+        const int rc = session->push_msg (&identity);
+        if (rc == -1 && errno == EAGAIN) {
+            // If the write is failing at this stage with
+            // an EAGAIN the pipe must be being shut down,
+            // so we can just bail out of the identity set.
+            return;
+        }
+        errno_assert (rc == 0);
+        session->flush ();
+    }
+
+    next_msg = &stream_engine_t::pull_and_encode;
+    process_msg = &stream_engine_t::write_credential;
+
+    //  Compile metadata.
+    typedef metadata_t::dict_t properties_t;
+    properties_t properties;
+    properties_t::const_iterator it;
+
+    //  If we have a peer_address, add it to metadata
+    if (!peer_address.empty()) {
+        properties.insert(std::make_pair("Peer-Address", peer_address));
+    }
+
+    //  Add ZAP properties.
+    const properties_t& zap_properties = mechanism->get_zap_properties ();
+    properties.insert(zap_properties.begin (), zap_properties.end ());
+
+    //  Add ZMTP properties.
+    const properties_t& zmtp_properties = mechanism->get_zmtp_properties ();
+    properties.insert(zmtp_properties.begin (), zmtp_properties.end ());
+
+    zmq_assert (metadata == NULL);
+    if (!properties.empty ())
+        metadata = new (std::nothrow) metadata_t (properties);
+}
+
+int zmq::stream_engine_t::pull_msg_from_session (msg_t *msg_)
+{
+    return session->pull_msg (msg_);
+}
+
+int zmq::stream_engine_t::push_msg_to_session (msg_t *msg_)
+{
+    return session->push_msg (msg_);
+}
+
+int zmq::stream_engine_t::push_raw_msg_to_session (msg_t *msg_) {
+    if (metadata)
+        msg_->set_metadata(metadata);
+    return push_msg_to_session(msg_);
+}
+
+int zmq::stream_engine_t::write_credential (msg_t *msg_)
+{
+    zmq_assert (mechanism != NULL);
+    zmq_assert (session != NULL);
+
+    const blob_t credential = mechanism->get_user_id ();
+    if (credential.size () > 0) {
+        msg_t msg;
+        int rc = msg.init_size (credential.size ());
+        zmq_assert (rc == 0);
+        memcpy (msg.data (), credential.data (), credential.size ());
+        msg.set_flags (msg_t::credential);
+        rc = session->push_msg (&msg);
+        if (rc == -1) {
+            rc = msg.close ();
+            errno_assert (rc == 0);
+            return -1;
+        }
+    }
+    process_msg = &stream_engine_t::decode_and_push;
+    return decode_and_push (msg_);
+}
+
+int zmq::stream_engine_t::pull_and_encode (msg_t *msg_)
+{
+    zmq_assert (mechanism != NULL);
+
+    if (session->pull_msg (msg_) == -1)
+        return -1;
+    if (mechanism->encode (msg_) == -1)
+        return -1;
+    return 0;
+}
+
+int zmq::stream_engine_t::decode_and_push (msg_t *msg_)
+{
+    zmq_assert (mechanism != NULL);
+
+    if (mechanism->decode (msg_) == -1)
+        return -1;
+    if (metadata)
+        msg_->set_metadata (metadata);
+    if (session->push_msg (msg_) == -1) {
+        if (errno == EAGAIN)
+            process_msg = &stream_engine_t::push_one_then_decode_and_push;
+        return -1;
+    }
+    return 0;
+}
+
+int zmq::stream_engine_t::push_one_then_decode_and_push (msg_t *msg_)
+{
+    const int rc = session->push_msg (msg_);
+    if (rc == 0)
+        process_msg = &stream_engine_t::decode_and_push;
+    return rc;
+}
+
+int zmq::stream_engine_t::write_subscription_msg (msg_t *msg_)
+{
+    msg_t subscription;
+
+    //  Inject the subscription message, so that also
+    //  ZMQ 2.x peers receive published messages.
+    int rc = subscription.init_size (1);
+    errno_assert (rc == 0);
+    *(unsigned char*) subscription.data () = 1;
+    rc = session->push_msg (&subscription);
+    if (rc == -1)
+       return -1;
+
+    process_msg = &stream_engine_t::push_msg_to_session;
+    return push_msg_to_session (msg_);
+}
+
+void zmq::stream_engine_t::error (error_reason_t reason)
+{
+    if (options.raw_sock) {
+        //  For raw sockets, send a final 0-length message to the application
+        //  so that it knows the peer has been disconnected.
+        msg_t terminator;
+        terminator.init();
+        (this->*process_msg) (&terminator);
+        terminator.close();
+    }
+    zmq_assert (session);
+    socket->event_disconnected (endpoint, s);
+    session->flush ();
+    session->engine_error (reason);
+    unplug ();
+    delete this;
+}
+
+void zmq::stream_engine_t::set_handshake_timer ()
+{
+    zmq_assert (!has_handshake_timer);
+
+    if (!options.raw_sock && options.handshake_ivl > 0) {
+        add_timer (options.handshake_ivl, handshake_timer_id);
+        has_handshake_timer = true;
+    }
+}
+
+void zmq::stream_engine_t::timer_event (int id_)
+{
+    zmq_assert (id_ == handshake_timer_id);
+    has_handshake_timer = false;
+
+    //  handshake timer expired before handshake completed, so engine fails
+    error (timeout_error);
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stream_engine.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stream_engine.hpp
new file mode 100644
index 00000000..d42c6929
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/stream_engine.hpp
@@ -0,0 +1,218 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_STREAM_ENGINE_HPP_INCLUDED__
+#define __ZMQ_STREAM_ENGINE_HPP_INCLUDED__
+
+#include <stddef.h>
+
+#include "fd.hpp"
+#include "i_engine.hpp"
+#include "io_object.hpp"
+#include "i_encoder.hpp"
+#include "i_decoder.hpp"
+#include "options.hpp"
+#include "socket_base.hpp"
+#include "../include/zmq.h"
+#include "metadata.hpp"
+
+namespace zmq
+{
+    //  Protocol revisions
+    enum
+    {
+        ZMTP_1_0 = 0,
+        ZMTP_2_0 = 1
+    };
+
+    class io_thread_t;
+    class msg_t;
+    class session_base_t;
+    class mechanism_t;
+
+    //  This engine handles any socket with SOCK_STREAM semantics,
+    //  e.g. TCP socket or an UNIX domain socket.
+
+    class stream_engine_t : public io_object_t, public i_engine
+    {
+    public:
+
+        enum error_reason_t {
+            protocol_error,
+            connection_error,
+            timeout_error
+        };
+
+        stream_engine_t (fd_t fd_, const options_t &options_,
+                         const std::string &endpoint);
+        ~stream_engine_t ();
+
+        //  i_engine interface implementation.
+        void plug (zmq::io_thread_t *io_thread_,
+           zmq::session_base_t *session_);
+        void terminate ();
+        void restart_input ();
+        void restart_output ();
+        void zap_msg_available ();
+
+        //  i_poll_events interface implementation.
+        void in_event ();
+        void out_event ();
+        void timer_event (int id_);
+
+    private:
+
+        //  Unplug the engine from the session.
+        void unplug ();
+
+        //  Function to handle network disconnections.
+        void error (error_reason_t reason);
+
+        //  Receives the greeting message from the peer.
+        int receive_greeting ();
+
+        //  Detects the protocol used by the peer.
+        bool handshake ();
+
+        int identity_msg (msg_t *msg_);
+        int process_identity_msg (msg_t *msg_);
+
+        int next_handshake_command (msg_t *msg);
+        int process_handshake_command (msg_t *msg);
+
+        int push_raw_msg_to_session (msg_t *msg);
+
+        int pull_msg_from_session (msg_t *msg_);
+        int push_msg_to_session (msg_t *msg);
+
+        int write_credential (msg_t *msg_);
+        int pull_and_encode (msg_t *msg_);
+        int decode_and_push (msg_t *msg_);
+        int push_one_then_decode_and_push (msg_t *msg_);
+
+        void mechanism_ready ();
+
+        int write_subscription_msg (msg_t *msg_);
+
+        size_t add_property (unsigned char *ptr,
+            const char *name, const void *value, size_t value_len);
+
+        void set_handshake_timer();
+
+        //  Underlying socket.
+        fd_t s;
+
+        //  True iff this is server's engine.
+        bool as_server;
+
+        msg_t tx_msg;
+
+        handle_t handle;
+
+        unsigned char *inpos;
+        size_t insize;
+        i_decoder *decoder;
+
+        unsigned char *outpos;
+        size_t outsize;
+        i_encoder *encoder;
+
+        //  Metadata to be attached to received messages. May be NULL.
+        metadata_t *metadata;
+
+        //  When true, we are still trying to determine whether
+        //  the peer is using versioned protocol, and if so, which
+        //  version.  When false, normal message flow has started.
+        bool handshaking;
+
+        static const size_t signature_size = 10;
+
+        //  Size of ZMTP/1.0 and ZMTP/2.0 greeting message
+        static const size_t v2_greeting_size = 12;
+
+        //  Size of ZMTP/3.0 greeting message
+        static const size_t v3_greeting_size = 64;
+
+        //  Expected greeting size.
+        size_t greeting_size;
+
+        //  Greeting received from, and sent to peer
+        unsigned char greeting_recv [v3_greeting_size];
+        unsigned char greeting_send [v3_greeting_size];
+
+        //  Size of greeting received so far
+        unsigned int greeting_bytes_read;
+
+        //  The session this engine is attached to.
+        zmq::session_base_t *session;
+
+        options_t options;
+
+        // String representation of endpoint
+        std::string endpoint;
+
+        bool plugged;
+
+        int (stream_engine_t::*next_msg) (msg_t *msg_);
+
+        int (stream_engine_t::*process_msg) (msg_t *msg_);
+
+        bool io_error;
+
+        //  Indicates whether the engine is to inject a phantom
+        //  subscription message into the incoming stream.
+        //  Needed to support old peers.
+        bool subscription_required;
+
+        mechanism_t *mechanism;
+
+        //  True iff the engine couldn't consume the last decoded message.
+        bool input_stopped;
+
+        //  True iff the engine doesn't have any message to encode.
+        bool output_stopped;
+
+        //  ID of the handshake timer
+        enum {handshake_timer_id = 0x40};
+
+        //  True is linger timer is running.
+        bool has_handshake_timer;
+
+        // Socket
+        zmq::socket_base_t *socket;
+
+        std::string peer_address;
+
+        stream_engine_t (const stream_engine_t&);
+        const stream_engine_t &operator = (const stream_engine_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/sub.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/sub.cpp
new file mode 100644
index 00000000..831230ad
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/sub.cpp
@@ -0,0 +1,90 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "sub.hpp"
+#include "msg.hpp"
+
+zmq::sub_t::sub_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
+    xsub_t (parent_, tid_, sid_)
+{
+    options.type = ZMQ_SUB;
+
+    //  Switch filtering messages on (as opposed to XSUB which where the
+    //  filtering is off).
+    options.filter = true;
+}
+
+zmq::sub_t::~sub_t ()
+{
+}
+
+int zmq::sub_t::xsetsockopt (int option_, const void *optval_,
+    size_t optvallen_)
+{
+    if (option_ != ZMQ_SUBSCRIBE && option_ != ZMQ_UNSUBSCRIBE) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    //  Create the subscription message.
+    msg_t msg;
+    int rc = msg.init_size (optvallen_ + 1);
+    errno_assert (rc == 0);
+    unsigned char *data = (unsigned char*) msg.data ();
+    if (option_ == ZMQ_SUBSCRIBE)
+        *data = 1;
+    else
+    if (option_ == ZMQ_UNSUBSCRIBE)
+        *data = 0;
+    memcpy (data + 1, optval_, optvallen_);
+
+    //  Pass it further on in the stack.
+    int err = 0;
+    rc = xsub_t::xsend (&msg);
+    if (rc != 0)
+        err = errno;
+    int rc2 = msg.close ();
+    errno_assert (rc2 == 0);
+    if (rc != 0)
+        errno = err;
+    return rc;
+}
+
+int zmq::sub_t::xsend (msg_t *)
+{
+    //  Override the XSUB's send.
+    errno = ENOTSUP;
+    return -1;
+}
+
+bool zmq::sub_t::xhas_out ()
+{
+    //  Override the XSUB's send.
+    return false;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/sub.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/sub.hpp
new file mode 100644
index 00000000..1615effa
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/sub.hpp
@@ -0,0 +1,64 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_SUB_HPP_INCLUDED__
+#define __ZMQ_SUB_HPP_INCLUDED__
+
+#include "xsub.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class msg_t;
+    class io_thread_t;
+    class socket_base_t;
+
+    class sub_t : public xsub_t
+    {
+    public:
+
+        sub_t (zmq::ctx_t *parent_, uint32_t tid_, int sid_);
+        ~sub_t ();
+
+    protected:
+
+        int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
+        int xsend (zmq::msg_t *msg_);
+        bool xhas_out ();
+
+    private:
+
+        sub_t (const sub_t&);
+        const sub_t &operator = (const sub_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp.cpp
new file mode 100644
index 00000000..21814104
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp.cpp
@@ -0,0 +1,254 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "ip.hpp"
+#include "tcp.hpp"
+#include "err.hpp"
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#endif
+
+#if defined ZMQ_HAVE_OPENVMS
+#include <ioctl.h>
+#endif
+
+void zmq::tune_tcp_socket (fd_t s_)
+{
+    //  Disable Nagle's algorithm. We are doing data batching on 0MQ level,
+    //  so using Nagle wouldn't improve throughput in anyway, but it would
+    //  hurt latency.
+    int nodelay = 1;
+    int rc = setsockopt (s_, IPPROTO_TCP, TCP_NODELAY, (char*) &nodelay,
+        sizeof (int));
+#ifdef ZMQ_HAVE_WINDOWS
+    wsa_assert (rc != SOCKET_ERROR);
+#else
+    errno_assert (rc == 0);
+#endif
+
+#ifdef ZMQ_HAVE_OPENVMS
+    //  Disable delayed acknowledgements as they hurt latency is serious manner.
+    int nodelack = 1;
+    rc = setsockopt (s_, IPPROTO_TCP, TCP_NODELACK, (char*) &nodelack,
+        sizeof (int));
+    errno_assert (rc != SOCKET_ERROR);
+#endif
+}
+
+void zmq::set_tcp_send_buffer (fd_t sockfd_, int bufsize_)
+{
+    const int rc = setsockopt (sockfd_, SOL_SOCKET, SO_SNDBUF,
+        (char*) &bufsize_, sizeof bufsize_);
+#ifdef ZMQ_HAVE_WINDOWS
+    wsa_assert (rc != SOCKET_ERROR);
+#else
+    errno_assert (rc == 0);
+#endif
+}
+
+void zmq::set_tcp_receive_buffer (fd_t sockfd_, int bufsize_)
+{
+    const int rc = setsockopt (sockfd_, SOL_SOCKET, SO_RCVBUF,
+        (char*) &bufsize_, sizeof bufsize_);
+#ifdef ZMQ_HAVE_WINDOWS
+    wsa_assert (rc != SOCKET_ERROR);
+#else
+    errno_assert (rc == 0);
+#endif
+}
+
+void zmq::tune_tcp_keepalives (fd_t s_, int keepalive_, int keepalive_cnt_, int keepalive_idle_, int keepalive_intvl_)
+{
+    // These options are used only under certain #ifdefs below.
+    (void)keepalive_;
+    (void)keepalive_cnt_;
+    (void)keepalive_idle_;
+    (void)keepalive_intvl_;
+
+    // If none of the #ifdefs apply, then s_ is unused.
+    (void)s_;
+
+    //  Tuning TCP keep-alives if platform allows it
+    //  All values = -1 means skip and leave it for OS
+#ifdef ZMQ_HAVE_WINDOWS
+    if (keepalive_ != -1) {
+        tcp_keepalive keepalive_opts;
+        keepalive_opts.onoff = keepalive_;
+        keepalive_opts.keepalivetime = keepalive_idle_ != -1 ? keepalive_idle_ * 1000 : 7200000;
+        keepalive_opts.keepaliveinterval = keepalive_intvl_ != -1 ? keepalive_intvl_ * 1000 : 1000;
+        DWORD num_bytes_returned;
+        int rc = WSAIoctl(s_, SIO_KEEPALIVE_VALS, &keepalive_opts, sizeof(keepalive_opts), NULL, 0, &num_bytes_returned, NULL, NULL);
+        wsa_assert (rc != SOCKET_ERROR);
+    }
+#else
+#ifdef ZMQ_HAVE_SO_KEEPALIVE
+    if (keepalive_ != -1) {
+        int rc = setsockopt (s_, SOL_SOCKET, SO_KEEPALIVE, (char*) &keepalive_, sizeof (int));
+        errno_assert (rc == 0);
+
+#ifdef ZMQ_HAVE_TCP_KEEPCNT
+        if (keepalive_cnt_ != -1) {
+            int rc = setsockopt (s_, IPPROTO_TCP, TCP_KEEPCNT, &keepalive_cnt_, sizeof (int));
+            errno_assert (rc == 0);
+        }
+#endif // ZMQ_HAVE_TCP_KEEPCNT
+
+#ifdef ZMQ_HAVE_TCP_KEEPIDLE
+        if (keepalive_idle_ != -1) {
+            int rc = setsockopt (s_, IPPROTO_TCP, TCP_KEEPIDLE, &keepalive_idle_, sizeof (int));
+            errno_assert (rc == 0);
+        }
+#else // ZMQ_HAVE_TCP_KEEPIDLE
+#ifdef ZMQ_HAVE_TCP_KEEPALIVE
+        if (keepalive_idle_ != -1) {
+            int rc = setsockopt (s_, IPPROTO_TCP, TCP_KEEPALIVE, &keepalive_idle_, sizeof (int));
+            errno_assert (rc == 0);
+        }
+#endif // ZMQ_HAVE_TCP_KEEPALIVE
+#endif // ZMQ_HAVE_TCP_KEEPIDLE
+
+#ifdef ZMQ_HAVE_TCP_KEEPINTVL
+        if (keepalive_intvl_ != -1) {
+            int rc = setsockopt (s_, IPPROTO_TCP, TCP_KEEPINTVL, &keepalive_intvl_, sizeof (int));
+            errno_assert (rc == 0);
+        }
+#endif // ZMQ_HAVE_TCP_KEEPINTVL
+    }
+#endif // ZMQ_HAVE_SO_KEEPALIVE
+#endif // ZMQ_HAVE_WINDOWS
+}
+
+int zmq::tcp_write (fd_t s_, const void *data_, size_t size_)
+{
+#ifdef ZMQ_HAVE_WINDOWS
+
+    int nbytes = send (s_, (char*) data_, (int) size_, 0);
+
+    //  If not a single byte can be written to the socket in non-blocking mode
+    //  we'll get an error (this may happen during the speculative write).
+    if (nbytes == SOCKET_ERROR && WSAGetLastError () == WSAEWOULDBLOCK)
+        return 0;
+
+    //  Signalise peer failure.
+    if (nbytes == SOCKET_ERROR && (
+          WSAGetLastError () == WSAENETDOWN ||
+          WSAGetLastError () == WSAENETRESET ||
+          WSAGetLastError () == WSAEHOSTUNREACH ||
+          WSAGetLastError () == WSAECONNABORTED ||
+          WSAGetLastError () == WSAETIMEDOUT ||
+          WSAGetLastError () == WSAECONNRESET))
+        return -1;
+
+    wsa_assert (nbytes != SOCKET_ERROR);
+    return nbytes;
+
+#else
+    ssize_t nbytes = send (s_, data_, size_, 0);
+
+    //  Several errors are OK. When speculative write is being done we may not
+    //  be able to write a single byte from the socket. Also, SIGSTOP issued
+    //  by a debugging tool can result in EINTR error.
+    if (nbytes == -1 && (errno == EAGAIN || errno == EWOULDBLOCK ||
+          errno == EINTR))
+        return 0;
+
+    //  Signalise peer failure.
+    if (nbytes == -1) {
+        errno_assert (errno != EACCES
+                   && errno != EBADF
+                   && errno != EDESTADDRREQ
+                   && errno != EFAULT
+                   && errno != EINVAL
+                   && errno != EISCONN
+                   && errno != EMSGSIZE
+                   && errno != ENOMEM
+                   && errno != ENOTSOCK
+                   && errno != EOPNOTSUPP);
+        return -1;
+    }
+
+    return static_cast <int> (nbytes);
+
+#endif
+}
+
+int zmq::tcp_read (fd_t s_, void *data_, size_t size_)
+{
+#ifdef ZMQ_HAVE_WINDOWS
+
+    const int rc = recv (s_, (char*) data_, (int) size_, 0);
+
+    //  If not a single byte can be read from the socket in non-blocking mode
+    //  we'll get an error (this may happen during the speculative read).
+    if (rc == SOCKET_ERROR) {
+        if (WSAGetLastError () == WSAEWOULDBLOCK)
+            errno = EAGAIN;
+        else {
+            wsa_assert (WSAGetLastError () == WSAENETDOWN
+                     || WSAGetLastError () == WSAENETRESET
+                     || WSAGetLastError () == WSAECONNABORTED
+                     || WSAGetLastError () == WSAETIMEDOUT
+                     || WSAGetLastError () == WSAECONNRESET
+                     || WSAGetLastError () == WSAECONNREFUSED
+                     || WSAGetLastError () == WSAENOTCONN);
+            errno = wsa_error_to_errno (WSAGetLastError ());
+        }
+    }
+
+    return rc == SOCKET_ERROR? -1: rc;
+
+#else
+
+    const ssize_t rc = recv (s_, data_, size_, 0);
+
+    //  Several errors are OK. When speculative read is being done we may not
+    //  be able to read a single byte from the socket. Also, SIGSTOP issued
+    //  by a debugging tool can result in EINTR error.
+    if (rc == -1) {
+        errno_assert (errno != EBADF
+                   && errno != EFAULT
+                   && errno != EINVAL
+                   && errno != ENOMEM
+                   && errno != ENOTSOCK);
+        if (errno == EWOULDBLOCK || errno == EINTR)
+            errno = EAGAIN;
+    }
+
+    return static_cast <int> (rc);
+
+#endif
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp.hpp
new file mode 100644
index 00000000..130b4c89
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp.hpp
@@ -0,0 +1,62 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_TCP_HPP_INCLUDED__
+#define __ZMQ_TCP_HPP_INCLUDED__
+
+#include "fd.hpp"
+
+namespace zmq
+{
+
+    //  Tunes the supplied TCP socket for the best latency.
+    void tune_tcp_socket (fd_t s_);
+
+    //  Sets the socket send buffer size.
+    void set_tcp_send_buffer (fd_t sockfd_, int bufsize_);
+
+    //  Sets the socket receive buffer size.
+    void set_tcp_receive_buffer (fd_t sockfd_, int bufsize_);
+
+    //  Tunes TCP keep-alives
+    void tune_tcp_keepalives (fd_t s_, int keepalive_, int keepalive_cnt_, int keepalive_idle_, int keepalive_intvl_);
+
+    //  Writes data to the socket. Returns the number of bytes actually
+    //  written (even zero is to be considered to be a success). In case
+    //  of error or orderly shutdown by the other peer -1 is returned.
+    int tcp_write (fd_t s_, const void *data_, size_t size_);
+
+    //  Reads data from the socket (up to 'size' bytes).
+    //  Returns the number of bytes actually read or -1 on error.
+    //  Zero indicates the peer has closed the connection.
+    int tcp_read (fd_t s_, void *data_, size_t size_);
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_address.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_address.cpp
new file mode 100644
index 00000000..c8689322
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_address.cpp
@@ -0,0 +1,672 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <string>
+#include <sstream>
+
+#include "tcp_address.hpp"
+#include "platform.hpp"
+#include "stdint.hpp"
+#include "err.hpp"
+#include "ip.hpp"
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <sys/types.h>
+#include <arpa/inet.h>
+#include <netinet/tcp.h>
+#include <netdb.h>
+#endif
+
+#ifdef ZMQ_HAVE_SOLARIS
+
+#include <sys/sockio.h>
+#include <net/if.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+//  On Solaris platform, network interface name can be queried by ioctl.
+int zmq::tcp_address_t::resolve_nic_name (const char *nic_, bool ipv6_, bool is_src_)
+{
+    //  TODO: Unused parameter, IPv6 support not implemented for Solaris.
+    (void) ipv6_;
+
+    //  Create a socket.
+    const int fd = open_socket (AF_INET, SOCK_DGRAM, 0);
+    errno_assert (fd != -1);
+
+    //  Retrieve number of interfaces.
+    lifnum ifn;
+    ifn.lifn_family = AF_INET;
+    ifn.lifn_flags = 0;
+    int rc = ioctl (fd, SIOCGLIFNUM, (char*) &ifn);
+    errno_assert (rc != -1);
+
+    //  Allocate memory to get interface names.
+    const size_t ifr_size = sizeof (struct lifreq) * ifn.lifn_count;
+    char *ifr = (char*) malloc (ifr_size);
+    alloc_assert (ifr);
+
+    //  Retrieve interface names.
+    lifconf ifc;
+    ifc.lifc_family = AF_INET;
+    ifc.lifc_flags = 0;
+    ifc.lifc_len = ifr_size;
+    ifc.lifc_buf = ifr;
+    rc = ioctl (fd, SIOCGLIFCONF, (char*) &ifc);
+    errno_assert (rc != -1);
+
+    //  Find the interface with the specified name and AF_INET family.
+    bool found = false;
+    lifreq *ifrp = ifc.lifc_req;
+    for (int n = 0; n < (int) (ifc.lifc_len / sizeof lifreq);
+          n ++, ifrp ++) {
+        if (!strcmp (nic_, ifrp->lifr_name)) {
+            rc = ioctl (fd, SIOCGLIFADDR, (char*) ifrp);
+            errno_assert (rc != -1);
+            if (ifrp->lifr_addr.ss_family == AF_INET) {
+                if (is_src_)
+                    source_address.ipv4 = *(sockaddr_in*) &ifrp->lifr_addr;
+                else
+                    address.ipv4 = *(sockaddr_in*) &ifrp->lifr_addr;
+                found = true;
+                break;
+            }
+        }
+    }
+
+    //  Clean-up.
+    free (ifr);
+    close (fd);
+
+    if (!found) {
+        errno = ENODEV;
+        return -1;
+    }
+    return 0;
+}
+
+#elif defined ZMQ_HAVE_AIX || defined ZMQ_HAVE_HPUX || defined ZMQ_HAVE_ANDROID
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+
+int zmq::tcp_address_t::resolve_nic_name (const char *nic_, bool ipv6_, bool is_src_)
+{
+    //  TODO: Unused parameter, IPv6 support not implemented for AIX or HP/UX.
+    (void) ipv6_;
+
+    //  Create a socket.
+    const int sd = open_socket (AF_INET, SOCK_DGRAM, 0);
+    errno_assert (sd != -1);
+
+    struct ifreq ifr;
+
+    //  Copy interface name for ioctl get.
+    strncpy (ifr.ifr_name, nic_, sizeof ifr.ifr_name);
+
+    //  Fetch interface address.
+    const int rc = ioctl (sd, SIOCGIFADDR, (caddr_t) &ifr, sizeof ifr);
+
+    //  Clean up.
+    close (sd);
+
+    if (rc == -1) {
+        errno = ENODEV;
+        return -1;
+    }
+    if (is_src_)
+        memcpy (&source_address.ipv4.sin_addr,
+            &((sockaddr_in*) &ifr.ifr_addr)->sin_addr, sizeof (struct in_addr));
+    else
+       memcpy (&address.ipv4.sin_addr,
+            &((sockaddr_in*) &ifr.ifr_addr)->sin_addr, sizeof (struct in_addr));
+
+    return 0;
+}
+
+#elif ((defined ZMQ_HAVE_LINUX || defined ZMQ_HAVE_FREEBSD ||\
+    defined ZMQ_HAVE_OSX || defined ZMQ_HAVE_OPENBSD ||\
+    defined ZMQ_HAVE_QNXNTO || defined ZMQ_HAVE_NETBSD)\
+    && defined ZMQ_HAVE_IFADDRS)
+
+#include <ifaddrs.h>
+
+//  On these platforms, network interface name can be queried
+//  using getifaddrs function.
+int zmq::tcp_address_t::resolve_nic_name (const char *nic_, bool ipv6_, bool is_src_)
+{
+    //  Get the addresses.
+    ifaddrs *ifa = NULL;
+    const int rc = getifaddrs (&ifa);
+    errno_assert (rc == 0);
+    zmq_assert (ifa != NULL);
+
+    //  Find the corresponding network interface.
+    bool found = false;
+    for (ifaddrs *ifp = ifa; ifp != NULL; ifp = ifp->ifa_next) {
+        if (ifp->ifa_addr == NULL)
+            continue;
+
+        const int family = ifp->ifa_addr->sa_family;
+        if ((family == AF_INET || (ipv6_ && family == AF_INET6))
+        && !strcmp (nic_, ifp->ifa_name)) {
+            if (is_src_)
+                memcpy (&source_address, ifp->ifa_addr,
+                        (family == AF_INET) ? sizeof (struct sockaddr_in)
+                                            : sizeof (struct sockaddr_in6));
+            else
+                memcpy (&address, ifp->ifa_addr,
+                        (family == AF_INET) ? sizeof (struct sockaddr_in)
+                                            : sizeof (struct sockaddr_in6));
+            found = true;
+            break;
+        }
+    }
+
+    //  Clean-up;
+    freeifaddrs (ifa);
+
+    if (!found) {
+        errno = ENODEV;
+        return -1;
+    }
+    return 0;
+}
+
+#else
+
+//  On other platforms we assume there are no sane interface names.
+//  This is true especially of Windows.
+int zmq::tcp_address_t::resolve_nic_name (const char *nic_, bool ipv6_, bool is_src_)
+{
+    //  All unused parameters.
+    (void) nic_;
+    (void) ipv6_;
+
+    errno = ENODEV;
+    return -1;
+}
+
+#endif
+
+int zmq::tcp_address_t::resolve_interface (const char *interface_, bool ipv6_, bool is_src_)
+{
+    //  Initialize temporary output pointers with storage address.
+    sockaddr_storage ss;
+    sockaddr *out_addr = (sockaddr*) &ss;
+    size_t out_addrlen;
+
+    //  Initialise IP-format family/port and populate temporary output pointers
+    //  with the address.
+    if (ipv6_) {
+        sockaddr_in6 ip6_addr;
+        memset (&ip6_addr, 0, sizeof ip6_addr);
+        ip6_addr.sin6_family = AF_INET6;
+        memcpy (&ip6_addr.sin6_addr, &in6addr_any, sizeof in6addr_any);
+        out_addrlen = sizeof ip6_addr;
+        memcpy (out_addr, &ip6_addr, out_addrlen);
+    }
+    else {
+        sockaddr_in ip4_addr;
+        memset (&ip4_addr, 0, sizeof ip4_addr);
+        ip4_addr.sin_family = AF_INET;
+        ip4_addr.sin_addr.s_addr = htonl (INADDR_ANY);
+        out_addrlen = sizeof ip4_addr;
+        memcpy (out_addr, &ip4_addr, out_addrlen);
+    }
+    //  "*" resolves to INADDR_ANY or in6addr_any.
+    if (strcmp (interface_, "*") == 0) {
+        zmq_assert (out_addrlen <= sizeof address);
+        if (is_src_)
+            memcpy (&source_address, out_addr, out_addrlen);
+        else
+            memcpy (&address, out_addr, out_addrlen);
+        return 0;
+    }
+
+    //  Try to resolve the string as a NIC name.
+    int rc = resolve_nic_name (interface_, ipv6_, is_src_);
+    if (rc == 0 || errno != ENODEV)
+        return rc;
+
+    //  There's no such interface name. Assume literal address.
+#if defined ZMQ_HAVE_OPENVMS && defined __ia64
+    __addrinfo64 *res = NULL;
+    __addrinfo64 req;
+#else
+    addrinfo *res = NULL;
+    addrinfo req;
+#endif
+    memset (&req, 0, sizeof req);
+
+    //  Choose IPv4 or IPv6 protocol family. Note that IPv6 allows for
+    //  IPv4-in-IPv6 addresses.
+    req.ai_family = ipv6_? AF_INET6: AF_INET;
+
+    //  Arbitrary, not used in the output, but avoids duplicate results.
+    req.ai_socktype = SOCK_STREAM;
+
+    //  Restrict hostname/service to literals to avoid any DNS lookups or
+    //  service-name irregularity due to indeterminate socktype.
+    req.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
+
+#if defined AI_V4MAPPED && !defined ZMQ_HAVE_FREEBSD
+    //  In this API we only require IPv4-mapped addresses when
+    //  no native IPv6 interfaces are available (~AI_ALL).
+    //  This saves an additional DNS roundtrip for IPv4 addresses.
+    //  Note: While the AI_V4MAPPED flag is defined on FreeBSD system,
+    //  it is not supported here. See libzmq issue #331.
+    if (req.ai_family == AF_INET6)
+        req.ai_flags |= AI_V4MAPPED;
+#endif
+
+    //  Resolve the literal address. Some of the error info is lost in case
+    //  of error, however, there's no way to report EAI errors via errno.
+    rc = getaddrinfo (interface_, NULL, &req, &res);
+    if (rc) {
+        errno = ENODEV;
+        return -1;
+    }
+
+    //  Use the first result.
+    zmq_assert (res != NULL);
+    zmq_assert ((size_t) res->ai_addrlen <= sizeof address);
+    if (is_src_)
+        memcpy (&source_address, res->ai_addr, res->ai_addrlen);
+    else
+        memcpy (&address, res->ai_addr, res->ai_addrlen);
+
+    //  Cleanup getaddrinfo after copying the possibly referenced result.
+    freeaddrinfo (res);
+
+    return 0;
+}
+
+int zmq::tcp_address_t::resolve_hostname (const char *hostname_, bool ipv6_, bool is_src_)
+{
+    //  Set up the query.
+#if defined ZMQ_HAVE_OPENVMS && defined __ia64 && __INITIAL_POINTER_SIZE == 64
+    __addrinfo64 req;
+#else
+    addrinfo req;
+#endif
+    memset (&req, 0, sizeof req);
+
+    //  Choose IPv4 or IPv6 protocol family. Note that IPv6 allows for
+    //  IPv4-in-IPv6 addresses.
+    req.ai_family = ipv6_? AF_INET6: AF_INET;
+
+    //  Need to choose one to avoid duplicate results from getaddrinfo() - this
+    //  doesn't really matter, since it's not included in the addr-output.
+    req.ai_socktype = SOCK_STREAM;
+
+#if defined AI_V4MAPPED && !defined ZMQ_HAVE_FREEBSD
+    //  In this API we only require IPv4-mapped addresses when
+    //  no native IPv6 interfaces are available.
+    //  This saves an additional DNS roundtrip for IPv4 addresses.
+    //  Note: While the AI_V4MAPPED flag is defined on FreeBSD system,
+    //  it is not supported here. See libzmq issue #331.
+    if (req.ai_family == AF_INET6)
+        req.ai_flags |= AI_V4MAPPED;
+#endif
+
+    //  Resolve host name. Some of the error info is lost in case of error,
+    //  however, there's no way to report EAI errors via errno.
+#if defined ZMQ_HAVE_OPENVMS && defined __ia64 && __INITIAL_POINTER_SIZE == 64
+    __addrinfo64 *res;
+#else
+    addrinfo *res;
+#endif
+    const int rc = getaddrinfo (hostname_, NULL, &req, &res);
+    if (rc) {
+        switch (rc) {
+        case EAI_MEMORY:
+            errno = ENOMEM;
+            break;
+        default:
+            errno = EINVAL;
+            break;
+        }
+        return -1;
+    }
+
+    //  Copy first result to output addr with hostname and service.
+    zmq_assert ((size_t) res->ai_addrlen <= sizeof address);
+    if (is_src_)
+        memcpy (&source_address, res->ai_addr, res->ai_addrlen);
+    else
+        memcpy (&address, res->ai_addr, res->ai_addrlen);
+
+    freeaddrinfo (res);
+
+    return 0;
+}
+
+zmq::tcp_address_t::tcp_address_t () :
+    _has_src_addr (false)
+{
+    memset (&address, 0, sizeof address);
+    memset (&source_address, 0, sizeof source_address);
+}
+
+zmq::tcp_address_t::tcp_address_t (const sockaddr *sa, socklen_t sa_len) :
+    _has_src_addr (false)
+{
+    zmq_assert (sa && sa_len > 0);
+
+    memset (&address, 0, sizeof address);
+    memset (&source_address, 0, sizeof source_address);
+    if (sa->sa_family == AF_INET && sa_len >= (socklen_t) sizeof address.ipv4)
+        memcpy (&address.ipv4, sa, sizeof address.ipv4);
+    else
+    if (sa->sa_family == AF_INET6 && sa_len >= (socklen_t) sizeof address.ipv6)
+        memcpy (&address.ipv6, sa, sizeof address.ipv6);
+}
+
+zmq::tcp_address_t::~tcp_address_t ()
+{
+}
+
+int zmq::tcp_address_t::resolve (const char *name_, bool local_, bool ipv6_, bool is_src_)
+{
+    if (!is_src_) {
+        // Test the ';' to know if we have a source address in name_
+        const char *src_delimiter = strrchr (name_, ';');
+        if (src_delimiter) {
+            std::string src_name (name_, src_delimiter - name_);
+            const int rc = resolve (src_name.c_str (), local_, ipv6_, true);
+            if (rc != 0)
+                return -1;
+            name_ = src_delimiter + 1;
+            _has_src_addr = true;
+        }
+    }
+
+    //  Find the ':' at end that separates address from the port number.
+    const char *delimiter = strrchr (name_, ':');
+    if (!delimiter) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    //  Separate the address/port.
+    std::string addr_str (name_, delimiter - name_);
+    std::string port_str (delimiter + 1);
+
+    //  Remove square brackets around the address, if any, as used in IPv6
+    if (addr_str.size () >= 2 && addr_str [0] == '[' &&
+          addr_str [addr_str.size () - 1] == ']')
+        addr_str = addr_str.substr (1, addr_str.size () - 2);
+
+    //  Allow 0 specifically, to detect invalid port error in atoi if not
+    uint16_t port;
+    if (port_str == "*" || port_str == "0")
+        //  Resolve wildcard to 0 to allow autoselection of port
+        port = 0;
+    else {
+        //  Parse the port number (0 is not a valid port).
+        port = (uint16_t) atoi (port_str.c_str ());
+        if (port == 0) {
+            errno = EINVAL;
+            return -1;
+        }
+    }
+
+    //  Resolve the IP address.
+    int rc;
+    if (local_)
+        rc = resolve_interface (addr_str.c_str (), ipv6_, is_src_);
+    else
+        rc = resolve_hostname (addr_str.c_str (), ipv6_, is_src_);
+    if (rc != 0)
+        return -1;
+
+    //  Set the port into the address structure.
+    if (is_src_) {
+        if (source_address.generic.sa_family == AF_INET6)
+            source_address.ipv6.sin6_port = htons (port);
+        else
+            source_address.ipv4.sin_port = htons (port);
+    }
+    else {
+        if (address.generic.sa_family == AF_INET6)
+            address.ipv6.sin6_port = htons (port);
+        else
+            address.ipv4.sin_port = htons (port);
+    }
+
+    return 0;
+}
+
+int zmq::tcp_address_t::to_string (std::string &addr_)
+{
+    if (address.generic.sa_family != AF_INET
+    &&  address.generic.sa_family != AF_INET6) {
+        addr_.clear ();
+        return -1;
+    }
+
+    //  Not using service resolv because of
+    //  https://github.com/zeromq/libzmq/commit/1824574f9b5a8ce786853320e3ea09fe1f822bc4
+    char hbuf [NI_MAXHOST];
+    int rc = getnameinfo (addr (), addrlen (), hbuf, sizeof hbuf, NULL, 0, NI_NUMERICHOST);
+    if (rc != 0) {
+        addr_.clear ();
+        return rc;
+    }
+
+    if (address.generic.sa_family == AF_INET6) {
+        std::stringstream s;
+        s << "tcp://[" << hbuf << "]:" << ntohs (address.ipv6.sin6_port);
+        addr_ = s.str ();
+    }
+    else {
+        std::stringstream s;
+        s << "tcp://" << hbuf << ":" << ntohs (address.ipv4.sin_port);
+        addr_ = s.str ();
+    }
+    return 0;
+}
+
+const sockaddr *zmq::tcp_address_t::addr () const
+{
+    return &address.generic;
+}
+
+socklen_t zmq::tcp_address_t::addrlen () const
+{
+    if (address.generic.sa_family == AF_INET6)
+        return (socklen_t) sizeof address.ipv6;
+    else
+        return (socklen_t) sizeof address.ipv4;
+}
+
+const sockaddr *zmq::tcp_address_t::src_addr () const
+{
+    return &source_address.generic;
+}
+
+socklen_t zmq::tcp_address_t::src_addrlen () const
+{
+    if (address.generic.sa_family == AF_INET6)
+        return (socklen_t) sizeof source_address.ipv6;
+    else
+        return (socklen_t) sizeof source_address.ipv4;
+}
+
+bool zmq::tcp_address_t::has_src_addr () const
+{
+    return _has_src_addr;
+}
+
+#if defined ZMQ_HAVE_WINDOWS
+unsigned short zmq::tcp_address_t::family () const
+#else
+sa_family_t zmq::tcp_address_t::family () const
+#endif
+{
+    return address.generic.sa_family;
+}
+
+zmq::tcp_address_mask_t::tcp_address_mask_t () :
+    tcp_address_t (),
+    address_mask (-1)
+{
+}
+
+int zmq::tcp_address_mask_t::mask () const
+{
+    return address_mask;
+}
+
+int zmq::tcp_address_mask_t::resolve (const char *name_, bool ipv6_)
+{
+    // Find '/' at the end that separates address from the cidr mask number.
+    // Allow empty mask clause and treat it like '/32' for ipv4 or '/128' for ipv6.
+    std::string addr_str, mask_str;
+    const char *delimiter = strrchr (name_, '/');
+    if (delimiter != NULL) {
+        addr_str.assign (name_, delimiter - name_);
+        mask_str.assign (delimiter + 1);
+        if (mask_str.empty ()) {
+            errno = EINVAL;
+            return -1;
+        }
+    }
+    else
+        addr_str.assign (name_);
+
+    // Parse address part using standard routines.
+    const int rc =
+        tcp_address_t::resolve_hostname (addr_str.c_str (), ipv6_);
+    if (rc != 0)
+        return rc;
+
+    // Parse the cidr mask number.
+    if (mask_str.empty ()) {
+        if (address.generic.sa_family == AF_INET6)
+            address_mask = 128;
+        else
+            address_mask = 32;
+    }
+    else
+    if (mask_str == "0")
+        address_mask = 0;
+    else {
+        const int mask = atoi (mask_str.c_str ());
+        if (
+            (mask < 1) ||
+            (address.generic.sa_family == AF_INET6 && mask > 128) ||
+            (address.generic.sa_family != AF_INET6 && mask > 32)
+        ) {
+            errno = EINVAL;
+            return -1;
+        }
+        address_mask = mask;
+    }
+
+    return 0;
+}
+
+int zmq::tcp_address_mask_t::to_string (std::string &addr_)
+{
+    if (address.generic.sa_family != AF_INET
+    &&  address.generic.sa_family != AF_INET6) {
+        addr_.clear ();
+        return -1;
+    }
+    if (address_mask == -1) {
+        addr_.clear ();
+        return -1;
+    }
+
+    char hbuf [NI_MAXHOST];
+    int rc = getnameinfo (addr (), addrlen (), hbuf, sizeof hbuf, NULL, 0, NI_NUMERICHOST);
+    if (rc != 0) {
+        addr_.clear ();
+        return rc;
+    }
+
+    if (address.generic.sa_family == AF_INET6) {
+        std::stringstream s;
+        s << "[" << hbuf << "]/" << address_mask;
+        addr_ = s.str ();
+    }
+    else {
+        std::stringstream s;
+        s << hbuf << "/" << address_mask;
+        addr_ = s.str ();
+    }
+    return 0;
+}
+
+bool zmq::tcp_address_mask_t::match_address (const struct sockaddr *ss, const socklen_t ss_len) const
+{
+    zmq_assert (address_mask != -1
+             && ss != NULL
+             && ss_len >= (socklen_t) sizeof (struct sockaddr));
+
+    if (ss->sa_family != address.generic.sa_family)
+        return false;
+
+    if (address_mask > 0) {
+        int mask;
+        const uint8_t *our_bytes, *their_bytes;
+        if (ss->sa_family == AF_INET6) {
+            zmq_assert (ss_len == sizeof (struct sockaddr_in6));
+            their_bytes = (const uint8_t *) &(((const struct sockaddr_in6 *) ss)->sin6_addr);
+            our_bytes = (const uint8_t *) &address.ipv6.sin6_addr;
+            mask = sizeof (struct in6_addr) * 8;
+        }
+        else {
+            zmq_assert (ss_len == sizeof (struct sockaddr_in));
+            their_bytes = (const uint8_t *) &(((const struct sockaddr_in *) ss)->sin_addr);
+            our_bytes = (const uint8_t *) &address.ipv4.sin_addr;
+            mask = sizeof (struct in_addr) * 8;
+        }
+        if (address_mask < mask)
+            mask = address_mask;
+
+        const size_t full_bytes = mask / 8;
+        if (memcmp (our_bytes, their_bytes, full_bytes))
+            return false;
+
+        const uint8_t last_byte_bits = 0xffU << (8 - mask % 8);
+        if (last_byte_bits) {
+            if ((their_bytes [full_bytes] & last_byte_bits) != (our_bytes [full_bytes] & last_byte_bits))
+                return false;
+        }
+    }
+
+    return true;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_address.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_address.hpp
new file mode 100644
index 00000000..31e8c2a5
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_address.hpp
@@ -0,0 +1,116 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_TCP_ADDRESS_HPP_INCLUDED__
+#define __ZMQ_TCP_ADDRESS_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <sys/socket.h>
+#include <netinet/in.h>
+#endif
+
+namespace zmq
+{
+
+    class tcp_address_t
+    {
+    public:
+
+        tcp_address_t ();
+        tcp_address_t (const sockaddr *sa, socklen_t sa_len);
+        virtual ~tcp_address_t ();
+
+        //  This function translates textual TCP address into an address
+        //  strcuture. If 'local' is true, names are resolved as local interface
+        //  names. If it is false, names are resolved as remote hostnames.
+        //  If 'ipv6' is true, the name may resolve to IPv6 address.
+        int resolve (const char *name_, bool local_, bool ipv6_, bool is_src_ = false);
+
+        //  The opposite to resolve()
+        virtual int to_string (std::string &addr_);
+
+#if defined ZMQ_HAVE_WINDOWS
+        unsigned short family () const;
+#else
+        sa_family_t family () const;
+#endif
+        const sockaddr *addr () const;
+        socklen_t addrlen () const;
+
+        const sockaddr *src_addr () const;
+        socklen_t src_addrlen () const;
+        bool has_src_addr () const;
+
+    protected:
+        int resolve_nic_name (const char *nic_, bool ipv6_, bool is_src_ = false);
+        int resolve_interface (const char *interface_, bool ipv6_, bool is_src_ = false);
+        int resolve_hostname (const char *hostname_, bool ipv6_, bool is_src_ = false);
+
+        union {
+            sockaddr generic;
+            sockaddr_in ipv4;
+            sockaddr_in6 ipv6;
+        } address;
+
+        union {
+            sockaddr generic;
+            sockaddr_in ipv4;
+            sockaddr_in6 ipv6;
+        } source_address;
+        bool _has_src_addr;
+    };
+
+    class tcp_address_mask_t : public tcp_address_t
+    {
+    public:
+        tcp_address_mask_t ();
+
+        // This function enhances tcp_address_t::resolve() with ability to parse
+        // additional cidr-like(/xx) mask value at the end of the name string.
+        // Works only with remote hostnames.
+        int resolve (const char *name_, bool ipv6_);
+
+        // The opposite to resolve()
+        int to_string (std::string &addr_);
+
+        int mask () const;
+
+        bool match_address (const struct sockaddr *ss, const socklen_t ss_len) const;
+
+    private:
+        int address_mask;
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_connecter.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_connecter.cpp
new file mode 100644
index 00000000..fdbc45c2
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_connecter.cpp
@@ -0,0 +1,367 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <new>
+#include <string>
+
+#include "tcp_connecter.hpp"
+#include "stream_engine.hpp"
+#include "io_thread.hpp"
+#include "platform.hpp"
+#include "random.hpp"
+#include "err.hpp"
+#include "ip.hpp"
+#include "tcp.hpp"
+#include "address.hpp"
+#include "tcp_address.hpp"
+#include "session_base.hpp"
+
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <netinet/tcp.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <fcntl.h>
+#ifdef ZMQ_HAVE_OPENVMS
+#include <ioctl.h>
+#endif
+#endif
+
+zmq::tcp_connecter_t::tcp_connecter_t (class io_thread_t *io_thread_,
+      class session_base_t *session_, const options_t &options_,
+      address_t *addr_, bool delayed_start_) :
+    own_t (io_thread_, options_),
+    io_object_t (io_thread_),
+    addr (addr_),
+    s (retired_fd),
+    handle_valid (false),
+    delayed_start (delayed_start_),
+    timer_started (false),
+    session (session_),
+    current_reconnect_ivl (options.reconnect_ivl)
+{
+    zmq_assert (addr);
+    zmq_assert (addr->protocol == "tcp");
+    addr->to_string (endpoint);
+    socket = session->get_socket ();
+}
+
+zmq::tcp_connecter_t::~tcp_connecter_t ()
+{
+    zmq_assert (!timer_started);
+    zmq_assert (!handle_valid);
+    zmq_assert (s == retired_fd);
+}
+
+void zmq::tcp_connecter_t::process_plug ()
+{
+    if (delayed_start)
+        add_reconnect_timer ();
+    else
+        start_connecting ();
+}
+
+void zmq::tcp_connecter_t::process_term (int linger_)
+{
+    if (timer_started) {
+        cancel_timer (reconnect_timer_id);
+        timer_started = false;
+    }
+
+    if (handle_valid) {
+        rm_fd (handle);
+        handle_valid = false;
+    }
+
+    if (s != retired_fd)
+        close ();
+
+    own_t::process_term (linger_);
+}
+
+void zmq::tcp_connecter_t::in_event ()
+{
+    //  We are not polling for incoming data, so we are actually called
+    //  because of error here. However, we can get error on out event as well
+    //  on some platforms, so we'll simply handle both events in the same way.
+    out_event ();
+}
+
+void zmq::tcp_connecter_t::out_event ()
+{
+    rm_fd (handle);
+    handle_valid = false;
+
+    const fd_t fd = connect ();
+    //  Handle the error condition by attempt to reconnect.
+    if (fd == retired_fd) {
+        close ();
+        add_reconnect_timer ();
+        return;
+    }
+
+    tune_tcp_socket (fd);
+    tune_tcp_keepalives (fd, options.tcp_keepalive, options.tcp_keepalive_cnt, options.tcp_keepalive_idle, options.tcp_keepalive_intvl);
+
+    // remember our fd for ZMQ_SRCFD in messages
+    socket->set_fd (fd);
+
+    //  Create the engine object for this connection.
+    stream_engine_t *engine = new (std::nothrow)
+        stream_engine_t (fd, options, endpoint);
+    alloc_assert (engine);
+
+    //  Attach the engine to the corresponding session object.
+    send_attach (session, engine);
+
+    //  Shut the connecter down.
+    terminate ();
+
+    socket->event_connected (endpoint, fd);
+}
+
+void zmq::tcp_connecter_t::timer_event (int id_)
+{
+    zmq_assert (id_ == reconnect_timer_id);
+    timer_started = false;
+    start_connecting ();
+}
+
+void zmq::tcp_connecter_t::start_connecting ()
+{
+    //  Open the connecting socket.
+    const int rc = open ();
+
+    //  Connect may succeed in synchronous manner.
+    if (rc == 0) {
+        handle = add_fd (s);
+        handle_valid = true;
+        out_event ();
+    }
+
+    //  Connection establishment may be delayed. Poll for its completion.
+    else
+    if (rc == -1 && errno == EINPROGRESS) {
+        handle = add_fd (s);
+        handle_valid = true;
+        set_pollout (handle);
+        socket->event_connect_delayed (endpoint, zmq_errno());
+    }
+
+    //  Handle any other error condition by eventual reconnect.
+    else {
+        if (s != retired_fd)
+            close ();
+        add_reconnect_timer ();
+    }
+}
+
+void zmq::tcp_connecter_t::add_reconnect_timer ()
+{
+    const int interval = get_new_reconnect_ivl ();
+    add_timer (interval, reconnect_timer_id);
+    socket->event_connect_retried (endpoint, interval);
+    timer_started = true;
+}
+
+int zmq::tcp_connecter_t::get_new_reconnect_ivl ()
+{
+    //  The new interval is the current interval + random value.
+    const int interval = current_reconnect_ivl +
+        generate_random () % options.reconnect_ivl;
+
+    //  Only change the current reconnect interval  if the maximum reconnect
+    //  interval was set and if it's larger than the reconnect interval.
+    if (options.reconnect_ivl_max > 0 &&
+        options.reconnect_ivl_max > options.reconnect_ivl)
+        //  Calculate the next interval
+        current_reconnect_ivl =
+            std::min (current_reconnect_ivl * 2, options.reconnect_ivl_max);
+    return interval;
+}
+
+int zmq::tcp_connecter_t::open ()
+{
+    zmq_assert (s == retired_fd);
+
+    //  Resolve the address
+    if (addr->resolved.tcp_addr != NULL) {
+        delete addr->resolved.tcp_addr;
+        addr->resolved.tcp_addr = NULL;
+    }
+
+    addr->resolved.tcp_addr = new (std::nothrow) tcp_address_t ();
+    alloc_assert (addr->resolved.tcp_addr);
+    int rc = addr->resolved.tcp_addr->resolve (
+        addr->address.c_str (), false, options.ipv6);
+    if (rc != 0) {
+        delete addr->resolved.tcp_addr;
+        addr->resolved.tcp_addr = NULL;
+        return -1;
+    }
+    zmq_assert (addr->resolved.tcp_addr != NULL);
+    tcp_address_t * const tcp_addr = addr->resolved.tcp_addr;
+
+    //  Create the socket.
+    s = open_socket (tcp_addr->family (), SOCK_STREAM, IPPROTO_TCP);
+#ifdef ZMQ_HAVE_WINDOWS
+    if (s == INVALID_SOCKET) {
+        errno = wsa_error_to_errno (WSAGetLastError ());
+        return -1;
+    }
+#else
+    if (s == -1)
+        return -1;
+#endif
+
+    //  On some systems, IPv4 mapping in IPv6 sockets is disabled by default.
+    //  Switch it on in such cases.
+    if (tcp_addr->family () == AF_INET6)
+        enable_ipv4_mapping (s);
+
+    // Set the IP Type-Of-Service priority for this socket
+    if (options.tos != 0)
+        set_ip_type_of_service (s, options.tos);
+
+    // Set the socket to non-blocking mode so that we get async connect().
+    unblock_socket (s);
+
+    //  Set the socket buffer limits for the underlying socket.
+    if (options.sndbuf != 0)
+        set_tcp_send_buffer (s, options.sndbuf);
+    if (options.rcvbuf != 0)
+        set_tcp_receive_buffer (s, options.rcvbuf);
+
+    // Set the IP Type-Of-Service for the underlying socket
+    if (options.tos != 0)
+        set_ip_type_of_service (s, options.tos);
+
+    // Set a source address for conversations
+    if (tcp_addr->has_src_addr ()) {
+        rc = ::bind (s, tcp_addr->src_addr (), tcp_addr->src_addrlen ());
+        if (rc == -1)
+            return -1;
+    }
+
+    //  Connect to the remote peer.
+    rc = ::connect (s, tcp_addr->addr (), tcp_addr->addrlen ());
+
+    //  Connect was successfull immediately.
+    if (rc == 0)
+        return 0;
+
+    //  Translate error codes indicating asynchronous connect has been
+    //  launched to a uniform EINPROGRESS.
+#ifdef ZMQ_HAVE_WINDOWS
+    const int error_code = WSAGetLastError ();
+    if (error_code == WSAEINPROGRESS || error_code == WSAEWOULDBLOCK)
+        errno = EINPROGRESS;
+    else
+        errno = wsa_error_to_errno (error_code);
+#else
+    if (errno == EINTR)
+        errno = EINPROGRESS;
+#endif
+    return -1;
+}
+
+zmq::fd_t zmq::tcp_connecter_t::connect ()
+{
+    //  Async connect has finished. Check whether an error occurred
+    int err = 0;
+#ifdef ZMQ_HAVE_HPUX
+    int len = sizeof err;
+#else
+    socklen_t len = sizeof err;
+#endif
+
+    const int rc = getsockopt (s, SOL_SOCKET, SO_ERROR, (char*) &err, &len);
+
+    //  Assert if the error was caused by 0MQ bug.
+    //  Networking problems are OK. No need to assert.
+#ifdef ZMQ_HAVE_WINDOWS
+    zmq_assert (rc == 0);
+    if (err != 0) {
+        if (err != WSAECONNREFUSED
+            && err != WSAETIMEDOUT
+            && err != WSAECONNABORTED
+            && err != WSAEHOSTUNREACH
+            && err != WSAENETUNREACH
+            && err != WSAENETDOWN
+            && err != WSAEACCES
+            && err != WSAEINVAL
+            && err != WSAEADDRINUSE)
+        {
+            wsa_assert_no (err);
+        }
+        return retired_fd;
+    }
+#else
+    //  Following code should handle both Berkeley-derived socket
+    //  implementations and Solaris.
+    if (rc == -1)
+        err = errno;
+    if (err != 0) {
+        errno = err;
+        errno_assert (
+            errno == ECONNREFUSED ||
+            errno == ECONNRESET ||
+            errno == ETIMEDOUT ||
+            errno == EHOSTUNREACH ||
+            errno == ENETUNREACH ||
+            errno == ENETDOWN ||
+            errno == EINVAL);
+        return retired_fd;
+    }
+#endif
+
+    //  Return the newly connected socket.
+    const fd_t result = s;
+    s = retired_fd;
+    return result;
+}
+
+void zmq::tcp_connecter_t::close ()
+{
+    zmq_assert (s != retired_fd);
+#ifdef ZMQ_HAVE_WINDOWS
+    const int rc = closesocket (s);
+    wsa_assert (rc != SOCKET_ERROR);
+#else
+    const int rc = ::close (s);
+    errno_assert (rc == 0);
+#endif
+    socket->event_closed (endpoint, s);
+    s = retired_fd;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_connecter.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_connecter.hpp
new file mode 100644
index 00000000..340c7f56
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_connecter.hpp
@@ -0,0 +1,131 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __TCP_CONNECTER_HPP_INCLUDED__
+#define __TCP_CONNECTER_HPP_INCLUDED__
+
+#include "fd.hpp"
+#include "own.hpp"
+#include "stdint.hpp"
+#include "io_object.hpp"
+#include "../include/zmq.h"
+
+namespace zmq
+{
+
+    class io_thread_t;
+    class session_base_t;
+    struct address_t;
+
+    class tcp_connecter_t : public own_t, public io_object_t
+    {
+    public:
+
+        //  If 'delayed_start' is true connecter first waits for a while,
+        //  then starts connection process.
+        tcp_connecter_t (zmq::io_thread_t *io_thread_,
+            zmq::session_base_t *session_, const options_t &options_,
+            address_t *addr_, bool delayed_start_);
+        ~tcp_connecter_t ();
+
+    private:
+
+        //  ID of the timer used to delay the reconnection.
+        enum {reconnect_timer_id = 1};
+
+        //  Handlers for incoming commands.
+        void process_plug ();
+        void process_term (int linger_);
+
+        //  Handlers for I/O events.
+        void in_event ();
+        void out_event ();
+        void timer_event (int id_);
+
+        //  Internal function to start the actual connection establishment.
+        void start_connecting ();
+
+        //  Internal function to add a reconnect timer
+        void add_reconnect_timer();
+
+        //  Internal function to return a reconnect backoff delay.
+        //  Will modify the current_reconnect_ivl used for next call
+        //  Returns the currently used interval
+        int get_new_reconnect_ivl ();
+
+        //  Open TCP connecting socket. Returns -1 in case of error,
+        //  0 if connect was successfull immediately. Returns -1 with
+        //  EAGAIN errno if async connect was launched.
+        int open ();
+
+        //  Close the connecting socket.
+        void close ();
+
+        //  Get the file descriptor of newly created connection. Returns
+        //  retired_fd if the connection was unsuccessfull.
+        fd_t connect ();
+
+        //  Address to connect to. Owned by session_base_t.
+        address_t *addr;
+
+        //  Underlying socket.
+        fd_t s;
+
+        //  Handle corresponding to the listening socket.
+        handle_t handle;
+
+        //  If true file descriptor is registered with the poller and 'handle'
+        //  contains valid value.
+        bool handle_valid;
+
+        //  If true, connecter is waiting a while before trying to connect.
+        const bool delayed_start;
+
+        //  True iff a timer has been started.
+        bool timer_started;
+
+        //  Reference to the session we belong to.
+        zmq::session_base_t *session;
+
+        //  Current reconnect ivl, updated for backoff strategy
+        int current_reconnect_ivl;
+
+        // String representation of endpoint to connect to
+        std::string endpoint;
+
+        // Socket
+        zmq::socket_base_t *socket;
+
+        tcp_connecter_t (const tcp_connecter_t&);
+        const tcp_connecter_t &operator = (const tcp_connecter_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_listener.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_listener.cpp
new file mode 100644
index 00000000..05171b35
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_listener.cpp
@@ -0,0 +1,333 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <new>
+
+#include <string>
+#include <stdio.h>
+
+#include "platform.hpp"
+#include "tcp_listener.hpp"
+#include "stream_engine.hpp"
+#include "io_thread.hpp"
+#include "session_base.hpp"
+#include "config.hpp"
+#include "err.hpp"
+#include "ip.hpp"
+#include "tcp.hpp"
+#include "socket_base.hpp"
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <unistd.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <netinet/tcp.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <fcntl.h>
+#endif
+
+#ifdef ZMQ_HAVE_OPENVMS
+#include <ioctl.h>
+#endif
+
+zmq::tcp_listener_t::tcp_listener_t (io_thread_t *io_thread_,
+      socket_base_t *socket_, const options_t &options_) :
+    own_t (io_thread_, options_),
+    io_object_t (io_thread_),
+    s (retired_fd),
+    socket (socket_)
+{
+}
+
+zmq::tcp_listener_t::~tcp_listener_t ()
+{
+    zmq_assert (s == retired_fd);
+}
+
+void zmq::tcp_listener_t::process_plug ()
+{
+    //  Start polling for incoming connections.
+    handle = add_fd (s);
+    set_pollin (handle);
+}
+
+void zmq::tcp_listener_t::process_term (int linger_)
+{
+    rm_fd (handle);
+    close ();
+    own_t::process_term (linger_);
+}
+
+void zmq::tcp_listener_t::in_event ()
+{
+    fd_t fd = accept ();
+
+    //  If connection was reset by the peer in the meantime, just ignore it.
+    //  TODO: Handle specific errors like ENFILE/EMFILE etc.
+    if (fd == retired_fd) {
+        socket->event_accept_failed (endpoint, zmq_errno());
+        return;
+    }
+
+    tune_tcp_socket (fd);
+    tune_tcp_keepalives (fd, options.tcp_keepalive, options.tcp_keepalive_cnt, options.tcp_keepalive_idle, options.tcp_keepalive_intvl);
+
+    // remember our fd for ZMQ_SRCFD in messages
+    socket->set_fd(fd);
+
+    //  Create the engine object for this connection.
+    stream_engine_t *engine = new (std::nothrow)
+        stream_engine_t (fd, options, endpoint);
+    alloc_assert (engine);
+
+    //  Choose I/O thread to run connecter in. Given that we are already
+    //  running in an I/O thread, there must be at least one available.
+    io_thread_t *io_thread = choose_io_thread (options.affinity);
+    zmq_assert (io_thread);
+
+    //  Create and launch a session object.
+    session_base_t *session = session_base_t::create (io_thread, false, socket,
+        options, NULL);
+    errno_assert (session);
+    session->inc_seqnum ();
+    launch_child (session);
+    send_attach (session, engine, false);
+    socket->event_accepted (endpoint, fd);
+}
+
+void zmq::tcp_listener_t::close ()
+{
+    zmq_assert (s != retired_fd);
+#ifdef ZMQ_HAVE_WINDOWS
+    int rc = closesocket (s);
+    wsa_assert (rc != SOCKET_ERROR);
+#else
+    int rc = ::close (s);
+    errno_assert (rc == 0);
+#endif
+    socket->event_closed (endpoint, s);
+    s = retired_fd;
+}
+
+int zmq::tcp_listener_t::get_address (std::string &addr_)
+{
+    // Get the details of the TCP socket
+    struct sockaddr_storage ss;
+#ifdef ZMQ_HAVE_HPUX
+    int sl = sizeof (ss);
+#else
+    socklen_t sl = sizeof (ss);
+#endif
+    int rc = getsockname (s, (struct sockaddr *) &ss, &sl);
+
+    if (rc != 0) {
+        addr_.clear ();
+        return rc;
+    }
+
+    tcp_address_t addr ((struct sockaddr *) &ss, sl);
+    return addr.to_string (addr_);
+}
+
+int zmq::tcp_listener_t::set_address (const char *addr_)
+{
+    //  Convert the textual address into address structure.
+    int rc = address.resolve (addr_, true, options.ipv6);
+    if (rc != 0)
+        return -1;
+
+    //  Create a listening socket.
+    s = open_socket (address.family (), SOCK_STREAM, IPPROTO_TCP);
+#ifdef ZMQ_HAVE_WINDOWS
+    if (s == INVALID_SOCKET)
+        errno = wsa_error_to_errno (WSAGetLastError ());
+#endif
+
+    //  IPv6 address family not supported, try automatic downgrade to IPv4.
+    if (address.family () == AF_INET6
+    && errno == EAFNOSUPPORT
+    && options.ipv6) {
+        rc = address.resolve (addr_, true, true);
+        if (rc != 0)
+            return rc;
+        s = ::socket (address.family (), SOCK_STREAM, IPPROTO_TCP);
+    }
+
+#ifdef ZMQ_HAVE_WINDOWS
+    if (s == INVALID_SOCKET) {
+        errno = wsa_error_to_errno (WSAGetLastError ());
+        return -1;
+    }
+#if !defined _WIN32_WCE
+    //  On Windows, preventing sockets to be inherited by child processes.
+    BOOL brc = SetHandleInformation ((HANDLE) s, HANDLE_FLAG_INHERIT, 0);
+    win_assert (brc);
+#endif
+#else
+    if (s == -1)
+        return -1;
+#endif
+
+    //  On some systems, IPv4 mapping in IPv6 sockets is disabled by default.
+    //  Switch it on in such cases.
+    if (address.family () == AF_INET6)
+        enable_ipv4_mapping (s);
+
+    // Set the IP Type-Of-Service for the underlying socket
+    if (options.tos != 0)
+        set_ip_type_of_service (s, options.tos);
+
+    //  Set the socket buffer limits for the underlying socket.
+    if (options.sndbuf != 0)
+        set_tcp_send_buffer (s, options.sndbuf);
+    if (options.rcvbuf != 0)
+        set_tcp_receive_buffer (s, options.rcvbuf);
+
+    //  Allow reusing of the address.
+    int flag = 1;
+#ifdef ZMQ_HAVE_WINDOWS
+    rc = setsockopt (s, SOL_SOCKET, SO_EXCLUSIVEADDRUSE,
+        (const char*) &flag, sizeof (int));
+    wsa_assert (rc != SOCKET_ERROR);
+#else
+    rc = setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &flag, sizeof (int));
+    errno_assert (rc == 0);
+#endif
+
+    address.to_string (endpoint);
+
+    //  Bind the socket to the network interface and port.
+    rc = bind (s, address.addr (), address.addrlen ());
+#ifdef ZMQ_HAVE_WINDOWS
+    if (rc == SOCKET_ERROR) {
+        errno = wsa_error_to_errno (WSAGetLastError ());
+        goto error;
+    }
+#else
+    if (rc != 0)
+        goto error;
+#endif
+
+    //  Listen for incoming connections.
+    rc = listen (s, options.backlog);
+#ifdef ZMQ_HAVE_WINDOWS
+    if (rc == SOCKET_ERROR) {
+        errno = wsa_error_to_errno (WSAGetLastError ());
+        goto error;
+    }
+#else
+    if (rc != 0)
+        goto error;
+#endif
+
+    socket->event_listening (endpoint, s);
+    return 0;
+
+error:
+    int err = errno;
+    close ();
+    errno = err;
+    return -1;
+}
+
+zmq::fd_t zmq::tcp_listener_t::accept ()
+{
+    //  The situation where connection cannot be accepted due to insufficient
+    //  resources is considered valid and treated by ignoring the connection.
+    //  Accept one connection and deal with different failure modes.
+    zmq_assert (s != retired_fd);
+
+    struct sockaddr_storage ss;
+    memset (&ss, 0, sizeof (ss));
+#ifdef ZMQ_HAVE_HPUX
+    int ss_len = sizeof (ss);
+#else
+    socklen_t ss_len = sizeof (ss);
+#endif
+    fd_t sock = ::accept (s, (struct sockaddr *) &ss, &ss_len);
+
+#ifdef ZMQ_HAVE_WINDOWS
+    if (sock == INVALID_SOCKET) {
+        wsa_assert (WSAGetLastError () == WSAEWOULDBLOCK ||
+            WSAGetLastError () == WSAECONNRESET ||
+            WSAGetLastError () == WSAEMFILE ||
+            WSAGetLastError () == WSAENOBUFS);
+        return retired_fd;
+    }
+#if !defined _WIN32_WCE
+    //  On Windows, preventing sockets to be inherited by child processes.
+    BOOL brc = SetHandleInformation ((HANDLE) sock, HANDLE_FLAG_INHERIT, 0);
+    win_assert (brc);
+#endif
+#else
+    if (sock == -1) {
+        errno_assert (errno == EAGAIN || errno == EWOULDBLOCK ||
+            errno == EINTR || errno == ECONNABORTED || errno == EPROTO ||
+            errno == ENOBUFS || errno == ENOMEM || errno == EMFILE ||
+            errno == ENFILE);
+        return retired_fd;
+    }
+#endif
+
+    //  Race condition can cause socket not to be closed (if fork happens
+    //  between accept and this point).
+#ifdef FD_CLOEXEC
+    int rc = fcntl (sock, F_SETFD, FD_CLOEXEC);
+    errno_assert (rc != -1);
+#endif
+
+    if (!options.tcp_accept_filters.empty ()) {
+        bool matched = false;
+        for (options_t::tcp_accept_filters_t::size_type i = 0; i != options.tcp_accept_filters.size (); ++i) {
+            if (options.tcp_accept_filters[i].match_address ((struct sockaddr *) &ss, ss_len)) {
+                matched = true;
+                break;
+            }
+        }
+        if (!matched) {
+#ifdef ZMQ_HAVE_WINDOWS
+            int rc = closesocket (sock);
+            wsa_assert (rc != SOCKET_ERROR);
+#else
+            int rc = ::close (sock);
+            errno_assert (rc == 0);
+#endif
+            return retired_fd;
+        }
+    }
+
+    // Set the IP Type-Of-Service priority for this client socket
+    if (options.tos != 0)
+        set_ip_type_of_service (sock, options.tos);
+
+    return sock;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_listener.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_listener.hpp
new file mode 100644
index 00000000..4b9dc7ed
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tcp_listener.hpp
@@ -0,0 +1,99 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_TCP_LISTENER_HPP_INCLUDED__
+#define __ZMQ_TCP_LISTENER_HPP_INCLUDED__
+
+#include "fd.hpp"
+#include "own.hpp"
+#include "stdint.hpp"
+#include "io_object.hpp"
+#include "tcp_address.hpp"
+#include "../include/zmq.h"
+
+namespace zmq
+{
+
+    class io_thread_t;
+    class socket_base_t;
+
+    class tcp_listener_t : public own_t, public io_object_t
+    {
+    public:
+
+        tcp_listener_t (zmq::io_thread_t *io_thread_,
+            zmq::socket_base_t *socket_, const options_t &options_);
+        ~tcp_listener_t ();
+
+        //  Set address to listen on.
+        int set_address (const char *addr_);
+
+        // Get the bound address for use with wildcard
+        int get_address (std::string &addr_);
+
+    private:
+
+        //  Handlers for incoming commands.
+        void process_plug ();
+        void process_term (int linger_);
+
+        //  Handlers for I/O events.
+        void in_event ();
+
+        //  Close the listening socket.
+        void close ();
+
+        //  Accept the new connection. Returns the file descriptor of the
+        //  newly created connection. The function may return retired_fd
+        //  if the connection was dropped while waiting in the listen backlog
+        //  or was denied because of accept filters.
+        fd_t accept ();
+
+        //  Address to listen on.
+        tcp_address_t address;
+
+        //  Underlying socket.
+        fd_t s;
+
+        //  Handle corresponding to the listening socket.
+        handle_t handle;
+
+        //  Socket the listerner belongs to.
+        zmq::socket_base_t *socket;
+
+       // String representation of endpoint to bind to
+        std::string endpoint;
+
+        tcp_listener_t (const tcp_listener_t&);
+        const tcp_listener_t &operator = (const tcp_listener_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/thread.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/thread.cpp
new file mode 100644
index 00000000..dc3d6d7f
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/thread.cpp
@@ -0,0 +1,144 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "thread.hpp"
+#include "err.hpp"
+#include "platform.hpp"
+
+#ifdef ZMQ_HAVE_WINDOWS
+
+extern "C"
+{
+#if defined _WIN32_WCE
+	static DWORD thread_routine (LPVOID arg_)
+#else
+    static unsigned int __stdcall thread_routine (void *arg_)
+#endif
+    {
+        zmq::thread_t *self = (zmq::thread_t*) arg_;
+        self->tfn (self->arg);
+        return 0;
+    }
+}
+
+void zmq::thread_t::start (thread_fn *tfn_, void *arg_)
+{
+    tfn = tfn_;
+    arg = arg_;
+#if defined _WIN32_WCE
+    descriptor = (HANDLE) CreateThread (NULL, 0,
+        &::thread_routine, this, 0 , NULL);
+#else
+    descriptor = (HANDLE) _beginthreadex (NULL, 0,
+        &::thread_routine, this, 0 , NULL);
+#endif
+    win_assert (descriptor != NULL);
+}
+
+void zmq::thread_t::stop ()
+{
+    DWORD rc = WaitForSingleObject (descriptor, INFINITE);
+    win_assert (rc != WAIT_FAILED);
+    BOOL rc2 = CloseHandle (descriptor);
+    win_assert (rc2 != 0);
+}
+
+void zmq::thread_t::setSchedulingParameters(int priority_, int schedulingPolicy_)
+{
+    // not implemented
+}
+
+#else
+
+#include <signal.h>
+
+extern "C"
+{
+    static void *thread_routine (void *arg_)
+    {
+#if !defined ZMQ_HAVE_OPENVMS && !defined ZMQ_HAVE_ANDROID
+        //  Following code will guarantee more predictable latencies as it'll
+        //  disallow any signal handling in the I/O thread.
+        sigset_t signal_set;
+        int rc = sigfillset (&signal_set);
+        errno_assert (rc == 0);
+        rc = pthread_sigmask (SIG_BLOCK, &signal_set, NULL);
+        posix_assert (rc);
+#endif
+
+        zmq::thread_t *self = (zmq::thread_t*) arg_;
+        self->tfn (self->arg);
+        return NULL;
+    }
+}
+
+void zmq::thread_t::start (thread_fn *tfn_, void *arg_)
+{
+    tfn = tfn_;
+    arg = arg_;
+    int rc = pthread_create (&descriptor, NULL, thread_routine, this);
+    posix_assert (rc);
+}
+
+void zmq::thread_t::stop ()
+{
+    int rc = pthread_join (descriptor, NULL);
+    posix_assert (rc);
+}
+
+void zmq::thread_t::setSchedulingParameters(int priority_, int schedulingPolicy_)
+{
+#if !defined ZMQ_HAVE_ZOS
+    int policy = 0;
+    struct sched_param param;
+
+    int rc = pthread_getschedparam(descriptor, &policy, &param);
+    posix_assert (rc);
+
+    if(priority_ != -1)
+    {
+        param.sched_priority = priority_;
+    }
+
+    if(schedulingPolicy_ != -1)
+    {
+        policy = schedulingPolicy_;
+    }
+
+    rc = pthread_setschedparam(descriptor, policy, &param);
+    posix_assert (rc);
+#endif
+}
+
+#endif
+
+
+
+
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/thread.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/thread.hpp
new file mode 100644
index 00000000..bfb61d8e
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/thread.hpp
@@ -0,0 +1,91 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_THREAD_HPP_INCLUDED__
+#define __ZMQ_THREAD_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <pthread.h>
+#endif
+
+namespace zmq
+{
+
+    typedef void (thread_fn) (void*);
+
+    //  Class encapsulating OS thread. Thread initiation/termination is done
+    //  using special functions rather than in constructor/destructor so that
+    //  thread isn't created during object construction by accident, causing
+    //  newly created thread to access half-initialised object. Same applies
+    //  to the destruction process: Thread should be terminated before object
+    //  destruction begins, otherwise it can access half-destructed object.
+
+    class thread_t
+    {
+    public:
+
+        inline thread_t ()
+        {
+        }
+
+        //  Creates OS thread. 'tfn' is main thread function. It'll be passed
+        //  'arg' as an argument.
+        void start (thread_fn *tfn_, void *arg_);
+
+        //  Waits for thread termination.
+        void stop ();
+
+        // Sets the thread scheduling parameters. Only implemented for
+        // pthread. Has no effect on other platforms.
+        void setSchedulingParameters(int priority_, int schedulingPolicy_);
+
+        //  These are internal members. They should be private, however then
+        //  they would not be accessible from the main C routine of the thread.
+        thread_fn *tfn;
+        void *arg;
+
+    private:
+
+#ifdef ZMQ_HAVE_WINDOWS
+        HANDLE descriptor;
+#else
+        pthread_t descriptor;
+#endif
+
+        thread_t (const thread_t&);
+        const thread_t &operator = (const thread_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_address.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_address.cpp
new file mode 100644
index 00000000..07f83ae8
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_address.cpp
@@ -0,0 +1,117 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "tipc_address.hpp"
+
+#if defined ZMQ_HAVE_TIPC
+
+#include "err.hpp"
+
+#include <string>
+#include <sstream>
+
+zmq::tipc_address_t::tipc_address_t ()
+{
+    memset (&address, 0, sizeof address);
+}
+
+zmq::tipc_address_t::tipc_address_t (const sockaddr *sa, socklen_t sa_len)
+{
+    zmq_assert (sa && sa_len > 0);
+
+    memset (&address, 0, sizeof address);
+    if (sa->sa_family == AF_TIPC)
+        memcpy (&address, sa, sa_len);
+}
+
+zmq::tipc_address_t::~tipc_address_t ()
+{
+}
+
+int zmq::tipc_address_t::resolve (const char *name)
+{
+    unsigned int type = 0;
+    unsigned int lower = 0;
+    unsigned int upper = 0;
+
+    const int res = sscanf (name, "{%u,%u,%u}", &type, &lower, &upper);
+    if (res == 3)
+        goto nameseq;
+    else
+    if (res == 2 && type > TIPC_RESERVED_TYPES) {
+        address.family = AF_TIPC;
+        address.addrtype = TIPC_ADDR_NAME;
+        address.addr.name.name.type = type;
+        address.addr.name.name.instance = lower;
+        /* Since we can't specify lookup domain when connecting
+         * (and we're not sure that we want it to be configurable)
+         * Change from 'closest first' approach, to search entire zone */
+        address.addr.name.domain = tipc_addr (1, 0, 0);
+        address.scope = 0;
+        return 0;
+    }
+    else
+        return EINVAL;
+nameseq:
+    if (type < TIPC_RESERVED_TYPES || upper < lower)
+        return EINVAL;
+    address.family = AF_TIPC;
+    address.addrtype = TIPC_ADDR_NAMESEQ;
+    address.addr.nameseq.type = type;
+    address.addr.nameseq.lower = lower;
+    address.addr.nameseq.upper = upper;
+    address.scope = TIPC_ZONE_SCOPE;
+    return 0;
+}
+
+int zmq::tipc_address_t::to_string (std::string &addr_)
+{
+    if (address.family != AF_TIPC) {
+        addr_.clear ();
+        return -1;
+    }
+    std::stringstream s;
+    s << "tipc://" << "{" << address.addr.nameseq.type;
+    s << ", " << address.addr.nameseq.lower;
+    s << ", " << address.addr.nameseq.upper << "}";
+    addr_ = s.str ();
+    return 0;
+}
+
+const sockaddr *zmq::tipc_address_t::addr () const
+{
+    return (sockaddr*) &address;
+}
+
+socklen_t zmq::tipc_address_t::addrlen () const
+{
+    return (socklen_t) sizeof address;
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_address.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_address.hpp
new file mode 100644
index 00000000..0d6baa20
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_address.hpp
@@ -0,0 +1,75 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_TIPC_ADDRESS_HPP_INCLUDED__
+#define __ZMQ_TIPC_ADDRESS_HPP_INCLUDED__
+
+#include <string>
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_TIPC
+
+#include <sys/socket.h>
+#include <linux/tipc.h>
+
+namespace zmq
+{
+
+    class tipc_address_t
+    {
+    public:
+
+        tipc_address_t ();
+        tipc_address_t (const sockaddr *sa, socklen_t sa_len);
+        ~tipc_address_t ();
+
+        //  This function sets up the address "{type, lower, upper}" for TIPC transport
+        int resolve (const char *name);
+
+        //  The opposite to resolve()
+        int to_string (std::string &addr_);
+
+        const sockaddr *addr () const;
+        socklen_t addrlen () const;
+
+    private:
+
+        struct sockaddr_tipc address;
+
+        tipc_address_t (const tipc_address_t&);
+        const tipc_address_t &operator = (const tipc_address_t&);
+    };
+
+}
+
+#endif
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_connecter.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_connecter.cpp
new file mode 100644
index 00000000..11b53c50
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_connecter.cpp
@@ -0,0 +1,266 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "tipc_connecter.hpp"
+
+#if defined ZMQ_HAVE_TIPC
+
+#include <new>
+#include <string>
+
+#include "stream_engine.hpp"
+#include "io_thread.hpp"
+#include "platform.hpp"
+#include "random.hpp"
+#include "err.hpp"
+#include "ip.hpp"
+#include "address.hpp"
+#include "tipc_address.hpp"
+#include "session_base.hpp"
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+zmq::tipc_connecter_t::tipc_connecter_t (class io_thread_t *io_thread_,
+      class session_base_t *session_, const options_t &options_,
+      const address_t *addr_, bool delayed_start_) :
+    own_t (io_thread_, options_),
+    io_object_t (io_thread_),
+    addr (addr_),
+    s (retired_fd),
+    handle_valid (false),
+    delayed_start (delayed_start_),
+    timer_started (false),
+    session (session_),
+    current_reconnect_ivl(options.reconnect_ivl)
+{
+    zmq_assert (addr);
+    zmq_assert (addr->protocol == "tipc");
+    addr->to_string (endpoint);
+    socket = session-> get_socket();
+}
+
+zmq::tipc_connecter_t::~tipc_connecter_t ()
+{
+    zmq_assert (!timer_started);
+    zmq_assert (!handle_valid);
+    zmq_assert (s == retired_fd);
+}
+
+void zmq::tipc_connecter_t::process_plug ()
+{
+    if (delayed_start)
+        add_reconnect_timer ();
+    else
+        start_connecting ();
+}
+
+void zmq::tipc_connecter_t::process_term (int linger_)
+{
+    if (timer_started) {
+        cancel_timer (reconnect_timer_id);
+        timer_started = false;
+   }
+
+    if (handle_valid) {
+        rm_fd (handle);
+        handle_valid = false;
+    }
+
+    if (s != retired_fd)
+        close ();
+
+    own_t::process_term (linger_);
+}
+
+void zmq::tipc_connecter_t::in_event ()
+{
+    //  We are not polling for incomming data, so we are actually called
+    //  because of error here. However, we can get error on out event as well
+    //  on some platforms, so we'll simply handle both events in the same way.
+    out_event ();
+}
+
+void zmq::tipc_connecter_t::out_event ()
+{
+    fd_t fd = connect ();
+    rm_fd (handle);
+    handle_valid = false;
+
+    //  Handle the error condition by attempt to reconnect.
+    if (fd == retired_fd) {
+        close ();
+        add_reconnect_timer();
+        return;
+    }
+    //  Create the engine object for this connection.
+    stream_engine_t *engine = new (std::nothrow) stream_engine_t (fd, options, endpoint);
+    alloc_assert (engine);
+
+    //  Attach the engine to the corresponding session object.
+    send_attach (session, engine);
+
+    //  Shut the connecter down.
+    terminate ();
+
+    socket->event_connected (endpoint, fd);
+}
+
+void zmq::tipc_connecter_t::timer_event (int id_)
+{
+    zmq_assert (id_ == reconnect_timer_id);
+    timer_started = false;
+    start_connecting ();
+}
+
+void zmq::tipc_connecter_t::start_connecting ()
+{
+    //  Open the connecting socket.
+    int rc = open ();
+
+    //  Connect may succeed in synchronous manner.
+    if (rc == 0) {
+        handle = add_fd (s);
+        handle_valid = true;
+        out_event ();
+    }
+
+    //  Connection establishment may be delayed. Poll for its completion.
+    else
+    if (rc == -1 && errno == EINPROGRESS) {
+        handle = add_fd (s);
+        handle_valid = true;
+        set_pollout (handle);
+        socket->event_connect_delayed (endpoint, zmq_errno());
+    }
+
+    //  Handle any other error condition by eventual reconnect.
+    else {
+        if (s != retired_fd)
+            close ();
+        add_reconnect_timer ();
+    }
+}
+
+void zmq::tipc_connecter_t::add_reconnect_timer()
+{
+    int rc_ivl = get_new_reconnect_ivl();
+    add_timer (rc_ivl, reconnect_timer_id);
+    socket->event_connect_retried (endpoint, rc_ivl);
+    timer_started = true;
+}
+
+int zmq::tipc_connecter_t::get_new_reconnect_ivl ()
+{
+    //  The new interval is the current interval + random value.
+    int this_interval = current_reconnect_ivl +
+        (generate_random () % options.reconnect_ivl);
+
+    //  Only change the current reconnect interval  if the maximum reconnect
+    //  interval was set and if it's larger than the reconnect interval.
+    if (options.reconnect_ivl_max > 0 &&
+        options.reconnect_ivl_max > options.reconnect_ivl) {
+
+        //  Calculate the next interval
+        current_reconnect_ivl = current_reconnect_ivl * 2;
+        if(current_reconnect_ivl >= options.reconnect_ivl_max) {
+            current_reconnect_ivl = options.reconnect_ivl_max;
+        }
+    }
+   return this_interval;
+}
+
+int zmq::tipc_connecter_t::open ()
+{
+    zmq_assert (s == retired_fd);
+
+    //  Create the socket.
+    s = open_socket (AF_TIPC, SOCK_STREAM, 0);
+    if (s == -1)
+        return -1;
+
+    //  Set the non-blocking flag.
+    unblock_socket (s);
+    //  Connect to the remote peer.
+    int rc = ::connect (
+      s, addr->resolved.tipc_addr->addr (),
+      addr->resolved.tipc_addr->addrlen ());
+
+    //  Connect was successfull immediately.
+    if (rc == 0)
+        return 0;
+
+    //  Translate other error codes indicating asynchronous connect has been
+    //  launched to a uniform EINPROGRESS.
+    if (rc == -1 && errno == EINTR) {
+        errno = EINPROGRESS;
+        return -1;
+    }
+    //  Forward the error.
+    return -1;
+}
+
+void zmq::tipc_connecter_t::close ()
+{
+    zmq_assert (s != retired_fd);
+    int rc = ::close (s);
+    errno_assert (rc == 0);
+    socket->event_closed (endpoint, s);
+    s = retired_fd;
+}
+
+zmq::fd_t zmq::tipc_connecter_t::connect ()
+{
+    //  Following code should handle both Berkeley-derived socket
+    //  implementations and Solaris.
+    int err = 0;
+    socklen_t len = sizeof (err);
+
+    int rc = getsockopt (s, SOL_SOCKET, SO_ERROR, (char*) &err, &len);
+    if (rc == -1)
+        err = errno;
+    if (err != 0) {
+
+        //  Assert if the error was caused by 0MQ bug.
+        //  Networking problems are OK. No need to assert.
+        errno = err;
+        errno_assert (errno == ECONNREFUSED || errno == ECONNRESET ||
+            errno == ETIMEDOUT || errno == EHOSTUNREACH ||
+            errno == ENETUNREACH || errno == ENETDOWN);
+
+        return retired_fd;
+    }
+    fd_t result = s;
+    s = retired_fd;
+    return result;
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_connecter.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_connecter.hpp
new file mode 100644
index 00000000..6bfc7677
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_connecter.hpp
@@ -0,0 +1,137 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __TIPC_CONNECTER_HPP_INCLUDED__
+#define __TIPC_CONNECTER_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_TIPC
+
+#include "fd.hpp"
+#include "own.hpp"
+#include "stdint.hpp"
+#include "io_object.hpp"
+
+namespace zmq
+{
+
+    class io_thread_t;
+    class session_base_t;
+    struct address_t;
+
+    class tipc_connecter_t : public own_t, public io_object_t
+    {
+    public:
+
+        //  If 'delayed_start' is true connecter first waits for a while,
+        //  then starts connection process.
+        tipc_connecter_t (zmq::io_thread_t *io_thread_,
+            zmq::session_base_t *session_, const options_t &options_,
+            const address_t *addr_, bool delayed_start_);
+        ~tipc_connecter_t ();
+
+    private:
+
+        //  ID of the timer used to delay the reconnection.
+        enum {reconnect_timer_id = 1};
+
+        //  Handlers for incoming commands.
+        void process_plug ();
+        void process_term (int linger_);
+
+        //  Handlers for I/O events.
+        void in_event ();
+        void out_event ();
+        void timer_event (int id_);
+
+        //  Internal function to start the actual connection establishment.
+        void start_connecting ();
+
+        //  Internal function to add a reconnect timer
+        void add_reconnect_timer();
+
+        //  Close the connecting socket.
+        void close ();
+
+        //  Get the file descriptor of newly created connection. Returns
+        //  retired_fd if the connection was unsuccessfull.
+        fd_t connect ();
+
+        //  Address to connect to. Owned by session_base_t.
+        const address_t *addr;
+
+        //  Underlying socket.
+        fd_t s;
+
+        //  Handle corresponding to the listening socket.
+        handle_t handle;
+
+        //  If true file descriptor is registered with the poller and 'handle'
+        //  contains valid value.
+        bool handle_valid;
+
+        //  If true, connecter is waiting a while before trying to connect.
+        const bool delayed_start;
+
+        //  True iff a timer has been started.
+        bool timer_started;
+
+        //  Reference to the session we belong to.
+        zmq::session_base_t *session;
+
+        //  Current reconnect ivl, updated for backoff strategy
+        int current_reconnect_ivl;
+
+        // String representation of endpoint to connect to
+        std::string endpoint;
+
+        // Socket
+        zmq::socket_base_t *socket;
+
+        //  Internal function to return a reconnect backoff delay.
+        //  Will modify the current_reconnect_ivl used for next call
+        //  Returns the currently used interval
+        int get_new_reconnect_ivl ();
+
+        //  Open IPC connecting socket. Returns -1 in case of error,
+        //  0 if connect was successfull immediately. Returns -1 with
+        //  EAGAIN errno if async connect was launched.
+        int open ();
+
+        tipc_connecter_t (const tipc_connecter_t&);
+        const tipc_connecter_t &operator = (const tipc_connecter_t&);
+    };
+
+}
+
+#endif
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_listener.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_listener.cpp
new file mode 100644
index 00000000..fb8df6c3
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_listener.cpp
@@ -0,0 +1,188 @@
+ /*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "tipc_listener.hpp"
+
+#if defined ZMQ_HAVE_TIPC
+
+#include <new>
+
+#include <string.h>
+
+#include "stream_engine.hpp"
+#include "tipc_address.hpp"
+#include "io_thread.hpp"
+#include "session_base.hpp"
+#include "config.hpp"
+#include "err.hpp"
+#include "ip.hpp"
+#include "socket_base.hpp"
+
+#include <unistd.h>
+#include <sys/socket.h>
+#include <fcntl.h>
+#include <linux/tipc.h>
+
+zmq::tipc_listener_t::tipc_listener_t (io_thread_t *io_thread_,
+      socket_base_t *socket_, const options_t &options_) :
+    own_t (io_thread_, options_),
+    io_object_t (io_thread_),
+    s (retired_fd),
+    socket (socket_)
+{
+}
+
+zmq::tipc_listener_t::~tipc_listener_t ()
+{
+    zmq_assert (s == retired_fd);
+}
+
+void zmq::tipc_listener_t::process_plug ()
+{
+    //  Start polling for incoming connections.
+    handle = add_fd (s);
+    set_pollin (handle);
+}
+
+void zmq::tipc_listener_t::process_term (int linger_)
+{
+    rm_fd (handle);
+    close ();
+    own_t::process_term (linger_);
+}
+
+void zmq::tipc_listener_t::in_event ()
+{
+    fd_t fd = accept ();
+
+    //  If connection was reset by the peer in the meantime, just ignore it.
+    //  TODO: Handle specific errors like ENFILE/EMFILE etc.
+    if (fd == retired_fd) {
+        socket->event_accept_failed (endpoint, zmq_errno());
+        return;
+    }
+
+    //  Create the engine object for this connection.
+    stream_engine_t *engine = new (std::nothrow) stream_engine_t (fd, options, endpoint);
+    alloc_assert (engine);
+
+    //  Choose I/O thread to run connecter in. Given that we are already
+    //  running in an I/O thread, there must be at least one available.
+    io_thread_t *io_thread = choose_io_thread (options.affinity);
+    zmq_assert (io_thread);
+
+    //  Create and launch a session object.
+    session_base_t *session = session_base_t::create (io_thread, false, socket,
+        options, NULL);
+    errno_assert (session);
+    session->inc_seqnum ();
+    launch_child (session);
+    send_attach (session, engine, false);
+    socket->event_accepted (endpoint, fd);
+}
+
+int zmq::tipc_listener_t::get_address (std::string &addr_)
+{
+    struct sockaddr_storage ss;
+    socklen_t sl = sizeof (ss);
+
+    int rc = getsockname (s, (sockaddr *) &ss, &sl);
+    if (rc != 0) {
+        addr_.clear ();
+        return rc;
+    }
+
+    tipc_address_t addr ((struct sockaddr *) &ss, sl);
+    return addr.to_string (addr_);
+}
+
+int zmq::tipc_listener_t::set_address (const char *addr_)
+{
+    //convert str to address struct
+    int rc = address.resolve(addr_);
+    if (rc != 0)
+        return -1;
+    //  Create a listening socket.
+    s = open_socket (AF_TIPC, SOCK_STREAM, 0);
+    if (s == -1)
+        return -1;
+
+    address.to_string (endpoint);
+
+    //  Bind the socket to tipc name.
+    rc = bind (s, address.addr (), address.addrlen ());
+    if (rc != 0)
+        goto error;
+
+    //  Listen for incomming connections.
+    rc = listen (s, options.backlog);
+    if (rc != 0)
+        goto error;
+
+    socket->event_listening (endpoint, s);
+    return 0;
+
+error:
+    int err = errno;
+    close ();
+    errno = err;
+    return -1;
+}
+
+void zmq::tipc_listener_t::close ()
+{
+    zmq_assert (s != retired_fd);
+    int rc = ::close (s);
+    errno_assert (rc == 0);
+    s = retired_fd;
+    socket->event_closed (endpoint, s);
+}
+
+zmq::fd_t zmq::tipc_listener_t::accept ()
+{
+    //  Accept one connection and deal with different failure modes.
+    //  The situation where connection cannot be accepted due to insufficient
+    //  resources is considered valid and treated by ignoring the connection.
+    struct sockaddr_storage ss = {};
+    socklen_t ss_len = sizeof(ss);
+
+    zmq_assert (s != retired_fd);
+    fd_t sock = ::accept (s, (struct sockaddr *) &ss, &ss_len);
+    if (sock == -1) {
+        errno_assert (errno == EAGAIN || errno == EWOULDBLOCK || errno == ENOBUFS ||
+            errno == EINTR || errno == ECONNABORTED || errno == EPROTO || errno == EMFILE ||
+            errno == ENFILE);
+        return retired_fd;
+    }
+    /*FIXME Accept filters?*/
+    return sock;
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_listener.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_listener.hpp
new file mode 100644
index 00000000..06d201ac
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/tipc_listener.hpp
@@ -0,0 +1,107 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_TIPC_LISTENER_HPP_INCLUDED__
+#define __ZMQ_TIPC_LISTENER_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_TIPC
+
+#include <string>
+
+#include "fd.hpp"
+#include "own.hpp"
+#include "stdint.hpp"
+#include "io_object.hpp"
+#include "tipc_address.hpp"
+
+namespace zmq
+{
+
+    class io_thread_t;
+    class socket_base_t;
+
+    class tipc_listener_t : public own_t, public io_object_t
+    {
+    public:
+
+        tipc_listener_t (zmq::io_thread_t *io_thread_,
+            zmq::socket_base_t *socket_, const options_t &options_);
+        ~tipc_listener_t ();
+
+        //  Set address to listen on.
+        int set_address (const char *addr_);
+
+        // Get the bound address for use with wildcards
+        int get_address (std::string &addr_);
+
+    private:
+
+        //  Handlers for incoming commands.
+        void process_plug ();
+        void process_term (int linger_);
+
+        //  Handlers for I/O events.
+        void in_event ();
+
+        //  Close the listening socket.
+        void close ();
+
+        //  Accept the new connection. Returns the file descriptor of the
+        //  newly created connection. The function may return retired_fd
+        //  if the connection was dropped while waiting in the listen backlog.
+        fd_t accept ();
+
+       // Address to listen on
+       tipc_address_t address;
+
+        //  Underlying socket.
+        fd_t s;
+
+
+        //  Handle corresponding to the listening socket.
+        handle_t handle;
+
+        //  Socket the listerner belongs to.
+        zmq::socket_base_t *socket;
+
+       // String representation of endpoint to bind to
+        std::string endpoint;
+
+        tipc_listener_t (const tipc_listener_t&);
+        const tipc_listener_t &operator = (const tipc_listener_t&);
+    };
+
+}
+
+#endif
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/trie.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/trie.cpp
new file mode 100644
index 00000000..e48cac0a
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/trie.cpp
@@ -0,0 +1,344 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdlib.h>
+
+#include <new>
+#include <algorithm>
+
+#include "platform.hpp"
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include "err.hpp"
+#include "trie.hpp"
+
+zmq::trie_t::trie_t () :
+    refcnt (0),
+    min (0),
+    count (0),
+    live_nodes (0)
+{
+}
+
+zmq::trie_t::~trie_t ()
+{
+    if (count == 1) {
+        zmq_assert (next.node);
+        delete next.node;
+        next.node = 0;
+    }
+    else
+    if (count > 1) {
+        for (unsigned short i = 0; i != count; ++i)
+            delete next.table [i];
+        free (next.table);
+    }
+}
+
+bool zmq::trie_t::add (unsigned char *prefix_, size_t size_)
+{
+    //  We are at the node corresponding to the prefix. We are done.
+    if (!size_) {
+        ++refcnt;
+        return refcnt == 1;
+    }
+
+    unsigned char c = *prefix_;
+    if (c < min || c >= min + count) {
+
+        //  The character is out of range of currently handled
+        //  charcters. We have to extend the table.
+        if (!count) {
+            min = c;
+            count = 1;
+            next.node = NULL;
+        }
+        else
+        if (count == 1) {
+            unsigned char oldc = min;
+            trie_t *oldp = next.node;
+            count = (min < c ? c - min : min - c) + 1;
+            next.table = (trie_t**)
+                malloc (sizeof (trie_t*) * count);
+            alloc_assert (next.table);
+            for (unsigned short i = 0; i != count; ++i)
+                next.table [i] = 0;
+            min = std::min (min, c);
+            next.table [oldc - min] = oldp;
+        }
+        else
+        if (min < c) {
+            //  The new character is above the current character range.
+            unsigned short old_count = count;
+            count = c - min + 1;
+            next.table = (trie_t**) realloc ((void*) next.table,
+                sizeof (trie_t*) * count);
+            zmq_assert (next.table);
+            for (unsigned short i = old_count; i != count; i++)
+                next.table [i] = NULL;
+        }
+        else {
+
+            //  The new character is below the current character range.
+            unsigned short old_count = count;
+            count = (min + old_count) - c;
+            next.table = (trie_t**) realloc ((void*) next.table,
+                sizeof (trie_t*) * count);
+            zmq_assert (next.table);
+            memmove (next.table + min - c, next.table,
+                old_count * sizeof (trie_t*));
+            for (unsigned short i = 0; i != min - c; i++)
+                next.table [i] = NULL;
+            min = c;
+        }
+    }
+
+    //  If next node does not exist, create one.
+    if (count == 1) {
+        if (!next.node) {
+            next.node = new (std::nothrow) trie_t;
+            alloc_assert (next.node);
+            ++live_nodes;
+            zmq_assert (live_nodes == 1);
+        }
+        return next.node->add (prefix_ + 1, size_ - 1);
+    }
+    else {
+        if (!next.table [c - min]) {
+            next.table [c - min] = new (std::nothrow) trie_t;
+            alloc_assert (next.table [c - min]);
+            ++live_nodes;
+            zmq_assert (live_nodes > 1);
+        }
+        return next.table [c - min]->add (prefix_ + 1, size_ - 1);
+    }
+}
+
+bool zmq::trie_t::rm (unsigned char *prefix_, size_t size_)
+{
+    //  TODO: Shouldn't an error be reported if the key does not exist?
+    if (!size_) {
+        if (!refcnt)
+            return false;
+        refcnt--;
+        return refcnt == 0;
+    }
+    unsigned char c = *prefix_;
+    if (!count || c < min || c >= min + count)
+        return false;
+
+    trie_t *next_node =
+        count == 1 ? next.node : next.table [c - min];
+
+    if (!next_node)
+        return false;
+
+    bool ret = next_node->rm (prefix_ + 1, size_ - 1);
+
+    //  Prune redundant nodes
+    if (next_node->is_redundant ()) {
+        delete next_node;
+        zmq_assert (count > 0);
+
+        if (count == 1) {
+            //  The just pruned node is was the only live node
+            next.node = 0;
+            count = 0;
+            --live_nodes;
+            zmq_assert (live_nodes == 0);
+        }
+        else {
+            next.table [c - min] = 0;
+            zmq_assert (live_nodes > 1);
+            --live_nodes;
+
+            //  Compact the table if possible
+            if (live_nodes == 1) {
+                //  We can switch to using the more compact single-node
+                //  representation since the table only contains one live node
+                trie_t *node = 0;
+                //  Since we always compact the table the pruned node must
+                //  either be the left-most or right-most ptr in the node
+                //  table
+                if (c == min) {
+                    //  The pruned node is the left-most node ptr in the
+                    //  node table => keep the right-most node
+                    node = next.table [count - 1];
+                    min += count - 1;
+                }
+                else
+                if (c == min + count - 1) {
+                    //  The pruned node is the right-most node ptr in the
+                    //  node table => keep the left-most node
+                    node = next.table [0];
+                }
+                zmq_assert (node);
+                free (next.table);
+                next.node = node;
+                count = 1;
+            }
+            else
+            if (c == min) {
+                //  We can compact the table "from the left".
+                //  Find the left-most non-null node ptr, which we'll use as
+                //  our new min
+                unsigned char new_min = min;
+                for (unsigned short i = 1; i < count; ++i) {
+                    if (next.table [i]) {
+                        new_min = i + min;
+                        break;
+                    }
+                }
+                zmq_assert (new_min != min);
+
+                trie_t **old_table = next.table;
+                zmq_assert (new_min > min);
+                zmq_assert (count > new_min - min);
+
+                count = count - (new_min - min);
+                next.table = (trie_t**) malloc (sizeof (trie_t*) * count);
+                alloc_assert (next.table);
+
+                memmove (next.table, old_table + (new_min - min),
+                        sizeof (trie_t*) * count);
+                free (old_table);
+
+                min = new_min;
+            }
+            else
+            if (c == min + count - 1) {
+                //  We can compact the table "from the right".
+                //  Find the right-most non-null node ptr, which we'll use to
+                //  determine the new table size
+                unsigned short new_count = count;
+                for (unsigned short i = 1; i < count; ++i) {
+                    if (next.table [count - 1 - i]) {
+                        new_count = count - i;
+                        break;
+                    }
+                }
+                zmq_assert (new_count != count);
+                count = new_count;
+
+                trie_t **old_table = next.table;
+                next.table = (trie_t**) malloc (sizeof (trie_t*) * count);
+                alloc_assert (next.table);
+
+                memmove (next.table, old_table, sizeof (trie_t*) * count);
+                free (old_table);
+            }
+        }
+    }
+    return ret;
+}
+
+bool zmq::trie_t::check (unsigned char *data_, size_t size_)
+{
+    //  This function is on critical path. It deliberately doesn't use
+    //  recursion to get a bit better performance.
+    trie_t *current = this;
+    while (true) {
+
+        //  We've found a corresponding subscription!
+        if (current->refcnt)
+            return true;
+
+        //  We've checked all the data and haven't found matching subscription.
+        if (!size_)
+            return false;
+
+        //  If there's no corresponding slot for the first character
+        //  of the prefix, the message does not match.
+        unsigned char c = *data_;
+        if (c < current->min || c >= current->min + current->count)
+            return false;
+
+        //  Move to the next character.
+        if (current->count == 1)
+            current = current->next.node;
+        else {
+            current = current->next.table [c - current->min];
+            if (!current)
+                return false;
+        }
+        data_++;
+        size_--;
+    }
+}
+
+void zmq::trie_t::apply (void (*func_) (unsigned char *data_, size_t size_,
+    void *arg_), void *arg_)
+{
+    unsigned char *buff = NULL;
+    apply_helper (&buff, 0, 0, func_, arg_);
+    free (buff);
+}
+
+void zmq::trie_t::apply_helper (
+    unsigned char **buff_, size_t buffsize_, size_t maxbuffsize_,
+    void (*func_) (unsigned char *data_, size_t size_, void *arg_), void *arg_)
+{
+    //  If this node is a subscription, apply the function.
+    if (refcnt)
+        func_ (*buff_, buffsize_, arg_);
+
+    //  Adjust the buffer.
+    if (buffsize_ >= maxbuffsize_) {
+        maxbuffsize_ = buffsize_ + 256;
+        *buff_ = (unsigned char*) realloc (*buff_, maxbuffsize_);
+        zmq_assert (*buff_);
+    }
+
+    //  If there are no subnodes in the trie, return.
+    if (count == 0)
+        return;
+
+    //  If there's one subnode (optimisation).
+    if (count == 1) {
+        (*buff_) [buffsize_] = min;
+        buffsize_++;
+        next.node->apply_helper (buff_, buffsize_, maxbuffsize_, func_, arg_);
+        return;
+    }
+
+    //  If there are multiple subnodes.
+    for (unsigned short c = 0; c != count; c++) {
+        (*buff_) [buffsize_] = min + c;
+        if (next.table [c])
+            next.table [c]->apply_helper (buff_, buffsize_ + 1, maxbuffsize_,
+                func_, arg_);
+    }
+}
+
+bool zmq::trie_t::is_redundant () const
+{
+    return refcnt == 0 && live_nodes == 0;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/trie.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/trie.hpp
new file mode 100644
index 00000000..d714c617
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/trie.hpp
@@ -0,0 +1,86 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_TRIE_HPP_INCLUDED__
+#define __ZMQ_TRIE_HPP_INCLUDED__
+
+#include <stddef.h>
+
+#include "stdint.hpp"
+
+namespace zmq
+{
+
+    class trie_t
+    {
+    public:
+
+        trie_t ();
+        ~trie_t ();
+
+        //  Add key to the trie. Returns true if this is a new item in the trie
+        //  rather than a duplicate.
+        bool add (unsigned char *prefix_, size_t size_);
+
+        //  Remove key from the trie. Returns true if the item is actually
+        //  removed from the trie.
+        bool rm (unsigned char *prefix_, size_t size_);
+
+        //  Check whether particular key is in the trie.
+        bool check (unsigned char *data_, size_t size_);
+
+        //  Apply the function supplied to each subscription in the trie.
+        void apply (void (*func_) (unsigned char *data_, size_t size_,
+            void *arg_), void *arg_);
+
+    private:
+
+        void apply_helper (
+            unsigned char **buff_, size_t buffsize_, size_t maxbuffsize_,
+            void (*func_) (unsigned char *data_, size_t size_, void *arg_),
+            void *arg_);
+        bool is_redundant () const;
+
+        uint32_t refcnt;
+        unsigned char min;
+        unsigned short count;
+        unsigned short live_nodes;
+        union {
+            class trie_t *node;
+            class trie_t **table;
+        } next;
+
+        trie_t (const trie_t&);
+        const trie_t &operator = (const trie_t&);
+    };
+
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v1_decoder.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v1_decoder.cpp
new file mode 100644
index 00000000..a21bb2f5
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v1_decoder.cpp
@@ -0,0 +1,158 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdlib.h>
+#include <string.h>
+#include <limits>
+
+#include "platform.hpp"
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include "decoder.hpp"
+#include "v1_decoder.hpp"
+#include "likely.hpp"
+#include "wire.hpp"
+#include "err.hpp"
+
+zmq::v1_decoder_t::v1_decoder_t (size_t bufsize_, int64_t maxmsgsize_) :
+    decoder_base_t <v1_decoder_t> (bufsize_),
+    maxmsgsize (maxmsgsize_)
+{
+    int rc = in_progress.init ();
+    errno_assert (rc == 0);
+
+    //  At the beginning, read one byte and go to one_byte_size_ready state.
+    next_step (tmpbuf, 1, &v1_decoder_t::one_byte_size_ready);
+}
+
+zmq::v1_decoder_t::~v1_decoder_t ()
+{
+    int rc = in_progress.close ();
+    errno_assert (rc == 0);
+}
+
+int zmq::v1_decoder_t::one_byte_size_ready ()
+{
+    //  First byte of size is read. If it is 0xff read 8-byte size.
+    //  Otherwise allocate the buffer for message data and read the
+    //  message data into it.
+    if (*tmpbuf == 0xff)
+        next_step (tmpbuf, 8, &v1_decoder_t::eight_byte_size_ready);
+    else {
+
+        //  There has to be at least one byte (the flags) in the message).
+        if (!*tmpbuf) {
+            errno = EPROTO;
+            return -1;
+        }
+
+        if (maxmsgsize >= 0 && (int64_t) (*tmpbuf - 1) > maxmsgsize) {
+            errno = EMSGSIZE;
+            return -1;
+        }
+
+        //  in_progress is initialised at this point so in theory we should
+        //  close it before calling zmq_msg_init_size, however, it's a 0-byte
+        //  message and thus we can treat it as uninitialised...
+        int rc = in_progress.init_size (*tmpbuf - 1);
+        if (rc != 0) {
+            errno_assert (errno == ENOMEM);
+            rc = in_progress.init ();
+            errno_assert (rc == 0);
+            errno = ENOMEM;
+            return -1;
+        }
+
+        next_step (tmpbuf, 1, &v1_decoder_t::flags_ready);
+    }
+    return 0;
+}
+
+int zmq::v1_decoder_t::eight_byte_size_ready ()
+{
+    //  8-byte payload length is read. Allocate the buffer
+    //  for message body and read the message data into it.
+    const uint64_t payload_length = get_uint64 (tmpbuf);
+
+    //  There has to be at least one byte (the flags) in the message).
+    if (payload_length == 0) {
+        errno = EPROTO;
+        return -1;
+    }
+
+    //  Message size must not exceed the maximum allowed size.
+    if (maxmsgsize >= 0 && payload_length - 1 > (uint64_t) maxmsgsize) {
+        errno = EMSGSIZE;
+        return -1;
+    }
+
+    //  Message size must fit within range of size_t data type.
+    if (payload_length - 1 > std::numeric_limits <size_t>::max ()) {
+        errno = EMSGSIZE;
+        return -1;
+    }
+
+    const size_t msg_size = static_cast <size_t> (payload_length - 1);
+
+    //  in_progress is initialised at this point so in theory we should
+    //  close it before calling init_size, however, it's a 0-byte
+    //  message and thus we can treat it as uninitialised...
+    int rc = in_progress.init_size (msg_size);
+    if (rc != 0) {
+        errno_assert (errno == ENOMEM);
+        rc = in_progress.init ();
+        errno_assert (rc == 0);
+        errno = ENOMEM;
+        return -1;
+    }
+
+    next_step (tmpbuf, 1, &v1_decoder_t::flags_ready);
+    return 0;
+}
+
+int zmq::v1_decoder_t::flags_ready ()
+{
+    //  Store the flags from the wire into the message structure.
+    in_progress.set_flags (tmpbuf [0] & msg_t::more);
+
+    next_step (in_progress.data (), in_progress.size (),
+        &v1_decoder_t::message_ready);
+
+    return 0;
+}
+
+int zmq::v1_decoder_t::message_ready ()
+{
+    //  Message is completely read. Push it further and start reading
+    //  new message. (in_progress is a 0-byte message after this point.)
+    next_step (tmpbuf, 1, &v1_decoder_t::one_byte_size_ready);
+    return 1;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v1_decoder.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v1_decoder.hpp
new file mode 100644
index 00000000..69207236
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v1_decoder.hpp
@@ -0,0 +1,67 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_V1_DECODER_HPP_INCLUDED__
+#define __ZMQ_V1_DECODER_HPP_INCLUDED__
+
+#include "decoder.hpp"
+
+namespace zmq
+{
+    //  Decoder for ZMTP/1.0 protocol. Converts data batches into messages.
+
+    class v1_decoder_t : public decoder_base_t <v1_decoder_t>
+    {
+    public:
+
+        v1_decoder_t (size_t bufsize_, int64_t maxmsgsize_);
+        ~v1_decoder_t ();
+
+        virtual msg_t *msg () { return &in_progress; }
+
+    private:
+
+        int one_byte_size_ready ();
+        int eight_byte_size_ready ();
+        int flags_ready ();
+        int message_ready ();
+
+        unsigned char tmpbuf [8];
+        msg_t in_progress;
+
+        int64_t maxmsgsize;
+
+        v1_decoder_t (const v1_decoder_t&);
+        void operator = (const v1_decoder_t&);
+    };
+
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v1_encoder.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v1_encoder.cpp
new file mode 100644
index 00000000..d77ccb25
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v1_encoder.cpp
@@ -0,0 +1,75 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "encoder.hpp"
+#include "v1_encoder.hpp"
+#include "likely.hpp"
+#include "wire.hpp"
+
+zmq::v1_encoder_t::v1_encoder_t (size_t bufsize_) :
+    encoder_base_t <v1_encoder_t> (bufsize_)
+{
+    //  Write 0 bytes to the batch and go to message_ready state.
+    next_step (NULL, 0, &v1_encoder_t::message_ready, true);
+}
+
+zmq::v1_encoder_t::~v1_encoder_t ()
+{
+}
+
+void zmq::v1_encoder_t::size_ready ()
+{
+    //  Write message body into the buffer.
+    next_step (in_progress->data (), in_progress->size (),
+        &v1_encoder_t::message_ready, true);
+}
+
+void zmq::v1_encoder_t::message_ready ()
+{
+    //  Get the message size.
+    size_t size = in_progress->size ();
+
+    //  Account for the 'flags' byte.
+    size++;
+
+    //  For messages less than 255 bytes long, write one byte of message size.
+    //  For longer messages write 0xff escape character followed by 8-byte
+    //  message size. In both cases 'flags' field follows.
+    if (size < 255) {
+        tmpbuf [0] = (unsigned char) size;
+        tmpbuf [1] = (in_progress->flags () & msg_t::more);
+        next_step (tmpbuf, 2, &v1_encoder_t::size_ready, false);
+    }
+    else {
+        tmpbuf [0] = 0xff;
+        put_uint64 (tmpbuf + 1, size);
+        tmpbuf [9] = (in_progress->flags () & msg_t::more);
+        next_step (tmpbuf, 10, &v1_encoder_t::size_ready, false);
+    }
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v1_encoder.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v1_encoder.hpp
new file mode 100644
index 00000000..4636d190
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v1_encoder.hpp
@@ -0,0 +1,59 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_V1_ENCODER_HPP_INCLUDED__
+#define __ZMQ_V1_ENCODER_HPP_INCLUDED__
+
+#include "encoder.hpp"
+
+namespace zmq
+{
+    //  Encoder for ZMTP/1.0 protocol. Converts messages into data batches.
+
+    class v1_encoder_t : public encoder_base_t <v1_encoder_t>
+    {
+    public:
+
+        v1_encoder_t (size_t bufsize_);
+        ~v1_encoder_t ();
+
+    private:
+
+        void size_ready ();
+        void message_ready ();
+
+        unsigned char tmpbuf [10];
+
+        v1_encoder_t (const v1_encoder_t&);
+        const v1_encoder_t &operator = (const v1_encoder_t&);
+    };
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_decoder.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_decoder.cpp
new file mode 100644
index 00000000..394b1e9f
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_decoder.cpp
@@ -0,0 +1,152 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "platform.hpp"
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#endif
+
+#include "v2_protocol.hpp"
+#include "v2_decoder.hpp"
+#include "likely.hpp"
+#include "wire.hpp"
+#include "err.hpp"
+
+zmq::v2_decoder_t::v2_decoder_t (size_t bufsize_, int64_t maxmsgsize_) :
+    decoder_base_t <v2_decoder_t> (bufsize_),
+    msg_flags (0),
+    maxmsgsize (maxmsgsize_)
+{
+    int rc = in_progress.init ();
+    errno_assert (rc == 0);
+
+    //  At the beginning, read one byte and go to flags_ready state.
+    next_step (tmpbuf, 1, &v2_decoder_t::flags_ready);
+}
+
+zmq::v2_decoder_t::~v2_decoder_t ()
+{
+    int rc = in_progress.close ();
+    errno_assert (rc == 0);
+}
+
+int zmq::v2_decoder_t::flags_ready ()
+{
+    msg_flags = 0;
+    if (tmpbuf [0] & v2_protocol_t::more_flag)
+        msg_flags |= msg_t::more;
+    if (tmpbuf [0] & v2_protocol_t::command_flag)
+        msg_flags |= msg_t::command;
+
+    //  The payload length is either one or eight bytes,
+    //  depending on whether the 'large' bit is set.
+    if (tmpbuf [0] & v2_protocol_t::large_flag)
+        next_step (tmpbuf, 8, &v2_decoder_t::eight_byte_size_ready);
+    else
+        next_step (tmpbuf, 1, &v2_decoder_t::one_byte_size_ready);
+
+    return 0;
+}
+
+int zmq::v2_decoder_t::one_byte_size_ready ()
+{
+    //  Message size must not exceed the maximum allowed size.
+    if (maxmsgsize >= 0)
+        if (unlikely (tmpbuf [0] > static_cast <uint64_t> (maxmsgsize))) {
+            errno = EMSGSIZE;
+            return -1;
+        }
+
+    //  in_progress is initialised at this point so in theory we should
+    //  close it before calling zmq_msg_init_size, however, it's a 0-byte
+    //  message and thus we can treat it as uninitialised...
+    int rc = in_progress.init_size (tmpbuf [0]);
+    if (unlikely (rc)) {
+        errno_assert (errno == ENOMEM);
+        rc = in_progress.init ();
+        errno_assert (rc == 0);
+        errno = ENOMEM;
+        return -1;
+    }
+
+    in_progress.set_flags (msg_flags);
+    next_step (in_progress.data (), in_progress.size (),
+        &v2_decoder_t::message_ready);
+
+    return 0;
+}
+
+int zmq::v2_decoder_t::eight_byte_size_ready ()
+{
+    //  The payload size is encoded as 64-bit unsigned integer.
+    //  The most significant byte comes first.
+    const uint64_t msg_size = get_uint64 (tmpbuf);
+
+    //  Message size must not exceed the maximum allowed size.
+    if (maxmsgsize >= 0)
+        if (unlikely (msg_size > static_cast <uint64_t> (maxmsgsize))) {
+            errno = EMSGSIZE;
+            return -1;
+        }
+
+    //  Message size must fit into size_t data type.
+    if (unlikely (msg_size != static_cast <size_t> (msg_size))) {
+        errno = EMSGSIZE;
+        return -1;
+    }
+
+    //  in_progress is initialised at this point so in theory we should
+    //  close it before calling init_size, however, it's a 0-byte
+    //  message and thus we can treat it as uninitialised.
+    int rc = in_progress.init_size (static_cast <size_t> (msg_size));
+    if (unlikely (rc)) {
+        errno_assert (errno == ENOMEM);
+        rc = in_progress.init ();
+        errno_assert (rc == 0);
+        errno = ENOMEM;
+        return -1;
+    }
+
+    in_progress.set_flags (msg_flags);
+    next_step (in_progress.data (), in_progress.size (),
+        &v2_decoder_t::message_ready);
+
+    return 0;
+}
+
+int zmq::v2_decoder_t::message_ready ()
+{
+    //  Message is completely read. Signal this to the caller
+    //  and prepare to decode next message.
+    next_step (tmpbuf, 1, &v2_decoder_t::flags_ready);
+    return 1;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_decoder.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_decoder.hpp
new file mode 100644
index 00000000..14c48e4e
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_decoder.hpp
@@ -0,0 +1,67 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_V2_DECODER_HPP_INCLUDED__
+#define __ZMQ_V2_DECODER_HPP_INCLUDED__
+
+#include "decoder.hpp"
+
+namespace zmq
+{
+    //  Decoder for ZMTP/2.x framing protocol. Converts data stream into messages.
+    class v2_decoder_t : public decoder_base_t <v2_decoder_t>
+    {
+    public:
+
+        v2_decoder_t (size_t bufsize_, int64_t maxmsgsize_);
+        virtual ~v2_decoder_t ();
+
+        //  i_decoder interface.
+        virtual msg_t *msg () { return &in_progress; }
+
+    private:
+
+        int flags_ready ();
+        int one_byte_size_ready ();
+        int eight_byte_size_ready ();
+        int message_ready ();
+
+        unsigned char tmpbuf [8];
+        unsigned char msg_flags;
+        msg_t in_progress;
+
+        const int64_t maxmsgsize;
+
+        v2_decoder_t (const v2_decoder_t&);
+        void operator = (const v2_decoder_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_encoder.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_encoder.cpp
new file mode 100644
index 00000000..1adca93d
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_encoder.cpp
@@ -0,0 +1,77 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "v2_protocol.hpp"
+#include "v2_encoder.hpp"
+#include "likely.hpp"
+#include "wire.hpp"
+
+zmq::v2_encoder_t::v2_encoder_t (size_t bufsize_) :
+    encoder_base_t <v2_encoder_t> (bufsize_)
+{
+    //  Write 0 bytes to the batch and go to message_ready state.
+    next_step (NULL, 0, &v2_encoder_t::message_ready, true);
+}
+
+zmq::v2_encoder_t::~v2_encoder_t ()
+{
+}
+
+void zmq::v2_encoder_t::message_ready ()
+{
+    //  Encode flags.
+    unsigned char &protocol_flags = tmpbuf [0];
+    protocol_flags = 0;
+    if (in_progress->flags () & msg_t::more)
+        protocol_flags |= v2_protocol_t::more_flag;
+    if (in_progress->size () > 255)
+        protocol_flags |= v2_protocol_t::large_flag;
+    if (in_progress->flags () & msg_t::command)
+        protocol_flags |= v2_protocol_t::command_flag;
+
+    //  Encode the message length. For messages less then 256 bytes,
+    //  the length is encoded as 8-bit unsigned integer. For larger
+    //  messages, 64-bit unsigned integer in network byte order is used.
+    const size_t size = in_progress->size ();
+    if (unlikely (size > 255)) {
+        put_uint64 (tmpbuf + 1, size);
+        next_step (tmpbuf, 9, &v2_encoder_t::size_ready, false);
+    }
+    else {
+        tmpbuf [1] = static_cast <uint8_t> (size);
+        next_step (tmpbuf, 2, &v2_encoder_t::size_ready, false);
+    }
+}
+
+void zmq::v2_encoder_t::size_ready ()
+{
+    //  Write message body into the buffer.
+    next_step (in_progress->data (), in_progress->size (),
+        &v2_encoder_t::message_ready, true);
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_encoder.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_encoder.hpp
new file mode 100644
index 00000000..a23f9780
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_encoder.hpp
@@ -0,0 +1,59 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_V2_ENCODER_HPP_INCLUDED__
+#define __ZMQ_V2_ENCODER_HPP_INCLUDED__
+
+#include "encoder.hpp"
+
+namespace zmq
+{
+    //  Encoder for 0MQ framing protocol. Converts messages into data stream.
+
+    class v2_encoder_t : public encoder_base_t <v2_encoder_t>
+    {
+    public:
+
+        v2_encoder_t (size_t bufsize_);
+        virtual ~v2_encoder_t ();
+
+    private:
+
+        void size_ready ();
+        void message_ready ();
+
+        unsigned char tmpbuf [9];
+
+        v2_encoder_t (const v2_encoder_t&);
+        const v2_encoder_t &operator = (const v2_encoder_t&);
+    };
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_protocol.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_protocol.hpp
new file mode 100644
index 00000000..4233343c
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_protocol.hpp
@@ -0,0 +1,49 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_V2_PROTOCOL_HPP_INCLUDED__
+#define __ZMQ_V2_PROTOCOL_HPP_INCLUDED__
+
+namespace zmq
+{
+    //  Definition of constants for ZMTP/2.0 transport protocol.
+    class v2_protocol_t
+    {
+    public:
+        //  Message flags.
+        enum
+        {
+            more_flag = 1,
+            large_flag = 2,
+            command_flag = 4
+        };
+    };
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/windows.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/windows.hpp
new file mode 100644
index 00000000..3ced6adf
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/windows.hpp
@@ -0,0 +1,83 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_WINDOWS_HPP_INCLUDED__
+#define __ZMQ_WINDOWS_HPP_INCLUDED__
+
+#ifndef _CRT_SECURE_NO_WARNINGS
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+#ifndef NOMINMAX
+#define NOMINMAX          // Macros min(a,b) and max(a,b)
+#endif
+
+//  Set target version to Windows Server 2003, Windows XP/SP1 or higher.
+#ifndef _WIN32_WINNT
+#define _WIN32_WINNT 0x0501
+#endif
+
+#ifdef __MINGW32__
+//  Require Windows XP or higher with MinGW for getaddrinfo().
+#if(_WIN32_WINNT >= 0x0501)
+#else
+#undef _WIN32_WINNT
+#define _WIN32_WINNT 0x0501
+#endif
+#endif
+
+#include <winsock2.h>
+#include <windows.h>
+#include <mswsock.h>
+
+#if !defined __MINGW32__
+#include <Mstcpip.h>
+#endif
+
+//  Workaround missing Mstcpip.h in mingw32 (MinGW64 provides this)
+//  __MINGW64_VERSION_MAJOR is only defined when using in mingw-w64
+#if defined __MINGW32__ && !defined SIO_KEEPALIVE_VALS && !defined __MINGW64_VERSION_MAJOR
+struct tcp_keepalive {
+    u_long onoff;
+    u_long keepalivetime;
+    u_long keepaliveinterval;
+};
+#define SIO_KEEPALIVE_VALS _WSAIOW(IOC_VENDOR,4)
+#endif
+
+#include <ws2tcpip.h>
+#include <ipexport.h>
+#if !defined _WIN32_WCE
+#include <process.h>
+#endif
+
+//  In MinGW environment AI_NUMERICSERV is not defined.
+#ifndef AI_NUMERICSERV
+#define AI_NUMERICSERV 0x0400
+#endif
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/wire.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/wire.hpp
new file mode 100644
index 00000000..6c2bee0e
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/wire.hpp
@@ -0,0 +1,108 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_WIRE_HPP_INCLUDED__
+#define __ZMQ_WIRE_HPP_INCLUDED__
+
+#include "stdint.hpp"
+
+namespace zmq
+{
+
+    //  Helper functions to convert different integer types to/from network
+    //  byte order.
+
+    inline void put_uint8 (unsigned char *buffer_, uint8_t value)
+    {
+        *buffer_ = value;
+    }
+
+    inline uint8_t get_uint8 (const unsigned char *buffer_)
+    {
+        return *buffer_;
+    }
+
+    inline void put_uint16 (unsigned char *buffer_, uint16_t value)
+    {
+        buffer_ [0] = (unsigned char) (((value) >> 8) & 0xff);
+        buffer_ [1] = (unsigned char) (value & 0xff);
+    }
+
+    inline uint16_t get_uint16 (const unsigned char *buffer_)
+    {
+        return
+            (((uint16_t) buffer_ [0]) << 8) |
+            ((uint16_t) buffer_ [1]);
+    }
+
+    inline void put_uint32 (unsigned char *buffer_, uint32_t value)
+    {
+        buffer_ [0] = (unsigned char) (((value) >> 24) & 0xff);
+        buffer_ [1] = (unsigned char) (((value) >> 16) & 0xff);
+        buffer_ [2] = (unsigned char) (((value) >> 8) & 0xff);
+        buffer_ [3] = (unsigned char) (value & 0xff);
+    }
+
+    inline uint32_t get_uint32 (const unsigned char *buffer_)
+    {
+        return
+            (((uint32_t) buffer_ [0]) << 24) |
+            (((uint32_t) buffer_ [1]) << 16) |
+            (((uint32_t) buffer_ [2]) << 8) |
+            ((uint32_t) buffer_ [3]);
+    }
+
+    inline void put_uint64 (unsigned char *buffer_, uint64_t value)
+    {
+        buffer_ [0] = (unsigned char) (((value) >> 56) & 0xff);
+        buffer_ [1] = (unsigned char) (((value) >> 48) & 0xff);
+        buffer_ [2] = (unsigned char) (((value) >> 40) & 0xff);
+        buffer_ [3] = (unsigned char) (((value) >> 32) & 0xff);
+        buffer_ [4] = (unsigned char) (((value) >> 24) & 0xff);
+        buffer_ [5] = (unsigned char) (((value) >> 16) & 0xff);
+        buffer_ [6] = (unsigned char) (((value) >> 8) & 0xff);
+        buffer_ [7] = (unsigned char) (value & 0xff);
+    }
+
+    inline uint64_t get_uint64 (const unsigned char *buffer_)
+    {
+        return
+            (((uint64_t) buffer_ [0]) << 56) |
+            (((uint64_t) buffer_ [1]) << 48) |
+            (((uint64_t) buffer_ [2]) << 40) |
+            (((uint64_t) buffer_ [3]) << 32) |
+            (((uint64_t) buffer_ [4]) << 24) |
+            (((uint64_t) buffer_ [5]) << 16) |
+            (((uint64_t) buffer_ [6]) << 8) |
+            ((uint64_t) buffer_ [7]);
+    }
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/xpub.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/xpub.cpp
new file mode 100644
index 00000000..445ef060
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/xpub.cpp
@@ -0,0 +1,207 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <string.h>
+
+#include "xpub.hpp"
+#include "pipe.hpp"
+#include "err.hpp"
+#include "msg.hpp"
+
+zmq::xpub_t::xpub_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
+    socket_base_t (parent_, tid_, sid_),
+    verbose (false),
+    more (false),
+    lossy (true)
+{
+    options.type = ZMQ_XPUB;
+}
+
+zmq::xpub_t::~xpub_t ()
+{
+}
+
+void zmq::xpub_t::xattach_pipe (pipe_t *pipe_, bool subscribe_to_all_)
+{
+    zmq_assert (pipe_);
+    dist.attach (pipe_);
+
+    //  If subscribe_to_all_ is specified, the caller would like to subscribe
+    //  to all data on this pipe, implicitly.
+    if (subscribe_to_all_)
+        subscriptions.add (NULL, 0, pipe_);
+
+    //  The pipe is active when attached. Let's read the subscriptions from
+    //  it, if any.
+    xread_activated (pipe_);
+}
+
+void zmq::xpub_t::xread_activated (pipe_t *pipe_)
+{
+    //  There are some subscriptions waiting. Let's process them.
+    msg_t sub;
+    while (pipe_->read (&sub)) {
+        //  Apply the subscription to the trie
+        unsigned char *const data = (unsigned char *) sub.data ();
+        const size_t size = sub.size ();
+        if (size > 0 && (*data == 0 || *data == 1)) {
+            bool unique;
+            if (*data == 0)
+                unique = subscriptions.rm (data + 1, size - 1, pipe_);
+            else
+                unique = subscriptions.add (data + 1, size - 1, pipe_);
+
+            //  If the subscription is not a duplicate store it so that it can be
+            //  passed to used on next recv call. (Unsubscribe is not verbose.)
+            if (options.type == ZMQ_XPUB && (unique || (*data && verbose))) {
+                pending_data.push_back (blob_t (data, size));
+                pending_flags.push_back (0);
+            }
+        }
+        else {
+            //  Process user message coming upstream from xsub socket
+            pending_data.push_back (blob_t (data, size));
+            pending_flags.push_back (sub.flags ());
+        }
+        sub.close ();
+    }
+}
+
+void zmq::xpub_t::xwrite_activated (pipe_t *pipe_)
+{
+    dist.activated (pipe_);
+}
+
+int zmq::xpub_t::xsetsockopt (int option_, const void *optval_,
+    size_t optvallen_)
+{
+    if (optvallen_ != sizeof (int) || *static_cast <const int*> (optval_) < 0) {
+        errno = EINVAL;
+        return -1;
+    }
+    if (option_ == ZMQ_XPUB_VERBOSE)
+        verbose = (*static_cast <const int*> (optval_) != 0);
+    else
+    if (option_ == ZMQ_XPUB_NODROP)
+        lossy = (*static_cast <const int*> (optval_) == 0);
+    else {
+        errno = EINVAL;
+        return -1;
+    }
+    return 0;
+}
+
+void zmq::xpub_t::xpipe_terminated (pipe_t *pipe_)
+{
+    //  Remove the pipe from the trie. If there are topics that nobody
+    //  is interested in anymore, send corresponding unsubscriptions
+    //  upstream.
+    subscriptions.rm (pipe_, send_unsubscription, this);
+
+    dist.pipe_terminated (pipe_);
+}
+
+void zmq::xpub_t::mark_as_matching (pipe_t *pipe_, void *arg_)
+{
+    xpub_t *self = (xpub_t*) arg_;
+    self->dist.match (pipe_);
+}
+
+int zmq::xpub_t::xsend (msg_t *msg_)
+{
+    bool msg_more = msg_->flags () & msg_t::more ? true : false;
+
+    //  For the first part of multi-part message, find the matching pipes.
+    if (!more)
+        subscriptions.match ((unsigned char*) msg_->data (), msg_->size (),
+            mark_as_matching, this);
+
+    int rc = -1;            //  Assume we fail
+    if (lossy || dist.check_hwm ()) {
+        if (dist.send_to_matching (msg_) == 0) {
+            //  If we are at the end of multi-part message we can mark
+            //  all the pipes as non-matching.
+            if (!msg_more)
+                dist.unmatch ();
+            more = msg_more;
+            rc = 0;         //  Yay, sent successfully
+        }
+    }
+    else
+        errno = EAGAIN;
+    return rc;
+}
+
+bool zmq::xpub_t::xhas_out ()
+{
+    return dist.has_out ();
+}
+
+int zmq::xpub_t::xrecv (msg_t *msg_)
+{
+    //  If there is at least one
+    if (pending_data.empty ()) {
+        errno = EAGAIN;
+        return -1;
+    }
+
+    int rc = msg_->close ();
+    errno_assert (rc == 0);
+    rc = msg_->init_size (pending_data.front ().size ());
+    errno_assert (rc == 0);
+    memcpy (msg_->data (),
+        pending_data.front ().data (),
+        pending_data.front ().size ());
+    msg_->set_flags (pending_flags.front ());
+    pending_data.pop_front ();
+    pending_flags.pop_front ();
+    return 0;
+}
+
+bool zmq::xpub_t::xhas_in ()
+{
+    return !pending_data.empty ();
+}
+
+void zmq::xpub_t::send_unsubscription (unsigned char *data_, size_t size_,
+    void *arg_)
+{
+    xpub_t *self = (xpub_t*) arg_;
+
+    if (self->options.type != ZMQ_PUB) {
+        //  Place the unsubscription to the queue of pending (un)sunscriptions
+        //  to be retrived by the user later on.
+        blob_t unsub (size_ + 1, 0);
+        unsub [0] = 0;
+        if (size_ > 0)
+            memcpy (&unsub [1], data_, size_);
+        self->pending_data.push_back (unsub);
+        self->pending_flags.push_back (0);
+    }
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/xpub.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/xpub.hpp
new file mode 100644
index 00000000..549b670c
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/xpub.hpp
@@ -0,0 +1,107 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_XPUB_HPP_INCLUDED__
+#define __ZMQ_XPUB_HPP_INCLUDED__
+
+#include <deque>
+#include <string>
+
+#include "socket_base.hpp"
+#include "session_base.hpp"
+#include "mtrie.hpp"
+#include "array.hpp"
+#include "dist.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class msg_t;
+    class pipe_t;
+    class io_thread_t;
+
+    class xpub_t :
+        public socket_base_t
+    {
+    public:
+
+        xpub_t (zmq::ctx_t *parent_, uint32_t tid_, int sid_);
+        ~xpub_t ();
+
+        //  Implementations of virtual functions from socket_base_t.
+        void xattach_pipe (zmq::pipe_t *pipe_, bool subscribe_to_all_ = false);
+        int xsend (zmq::msg_t *msg_);
+        bool xhas_out ();
+        int xrecv (zmq::msg_t *msg_);
+        bool xhas_in ();
+        void xread_activated (zmq::pipe_t *pipe_);
+        void xwrite_activated (zmq::pipe_t *pipe_);
+        int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
+        void xpipe_terminated (zmq::pipe_t *pipe_);
+
+    private:
+
+        //  Function to be applied to the trie to send all the subsciptions
+        //  upstream.
+        static void send_unsubscription (unsigned char *data_, size_t size_,
+            void *arg_);
+
+        //  Function to be applied to each matching pipes.
+        static void mark_as_matching (zmq::pipe_t *pipe_, void *arg_);
+
+        //  List of all subscriptions mapped to corresponding pipes.
+        mtrie_t subscriptions;
+
+        //  Distributor of messages holding the list of outbound pipes.
+        dist_t dist;
+
+        // If true, send all subscription messages upstream, not just
+        // unique ones
+        bool verbose;
+
+        //  True if we are in the middle of sending a multi-part message.
+        bool more;
+
+        //  Drop messages if HWM reached, otherwise return with EAGAIN
+        bool lossy;
+
+        //  List of pending (un)subscriptions, ie. those that were already
+        //  applied to the trie, but not yet received by the user.
+        typedef std::basic_string <unsigned char> blob_t;
+        std::deque <blob_t> pending_data;
+        std::deque <unsigned char> pending_flags;
+
+        xpub_t (const xpub_t&);
+        const xpub_t &operator = (const xpub_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/xsub.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/xsub.cpp
new file mode 100644
index 00000000..5d9efddf
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/xsub.cpp
@@ -0,0 +1,243 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <string.h>
+
+#include "xsub.hpp"
+#include "err.hpp"
+
+zmq::xsub_t::xsub_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
+    socket_base_t (parent_, tid_, sid_),
+    has_message (false),
+    more (false)
+{
+    options.type = ZMQ_XSUB;
+
+    //  When socket is being closed down we don't want to wait till pending
+    //  subscription commands are sent to the wire.
+    options.linger = 0;
+
+    int rc = message.init ();
+    errno_assert (rc == 0);
+}
+
+zmq::xsub_t::~xsub_t ()
+{
+    int rc = message.close ();
+    errno_assert (rc == 0);
+}
+
+void zmq::xsub_t::xattach_pipe (pipe_t *pipe_, bool subscribe_to_all_)
+{
+    // subscribe_to_all_ is unused
+    (void) subscribe_to_all_;
+
+    zmq_assert (pipe_);
+    fq.attach (pipe_);
+    dist.attach (pipe_);
+
+    //  Send all the cached subscriptions to the new upstream peer.
+    subscriptions.apply (send_subscription, pipe_);
+    pipe_->flush ();
+}
+
+void zmq::xsub_t::xread_activated (pipe_t *pipe_)
+{
+    fq.activated (pipe_);
+}
+
+void zmq::xsub_t::xwrite_activated (pipe_t *pipe_)
+{
+    dist.activated (pipe_);
+}
+
+void zmq::xsub_t::xpipe_terminated (pipe_t *pipe_)
+{
+    fq.pipe_terminated (pipe_);
+    dist.pipe_terminated (pipe_);
+}
+
+void zmq::xsub_t::xhiccuped (pipe_t *pipe_)
+{
+    //  Send all the cached subscriptions to the hiccuped pipe.
+    subscriptions.apply (send_subscription, pipe_);
+    pipe_->flush ();
+}
+
+int zmq::xsub_t::xsend (msg_t *msg_)
+{
+    size_t size = msg_->size ();
+    unsigned char *data = (unsigned char *) msg_->data ();
+
+    if (size > 0 && *data == 1) {
+        //  Process subscribe message
+        //  This used to filter out duplicate subscriptions,
+        //  however this is alread done on the XPUB side and
+        //  doing it here as well breaks ZMQ_XPUB_VERBOSE
+        //  when there are forwarding devices involved.
+        subscriptions.add (data + 1, size - 1);
+        return dist.send_to_all (msg_);
+    }
+    else
+    if (size > 0 && *data == 0) {
+        //  Process unsubscribe message
+        if (subscriptions.rm (data + 1, size - 1))
+            return dist.send_to_all (msg_);
+    }
+    else
+        //  User message sent upstream to XPUB socket
+        return dist.send_to_all (msg_);
+
+    int rc = msg_->close ();
+    errno_assert (rc == 0);
+    rc = msg_->init ();
+    errno_assert (rc == 0);
+
+    return 0;
+}
+
+bool zmq::xsub_t::xhas_out ()
+{
+    //  Subscription can be added/removed anytime.
+    return true;
+}
+
+int zmq::xsub_t::xrecv (msg_t *msg_)
+{
+    //  If there's already a message prepared by a previous call to zmq_poll,
+    //  return it straight ahead.
+    if (has_message) {
+        int rc = msg_->move (message);
+        errno_assert (rc == 0);
+        has_message = false;
+        more = msg_->flags () & msg_t::more ? true : false;
+        return 0;
+    }
+
+    //  TODO: This can result in infinite loop in the case of continuous
+    //  stream of non-matching messages which breaks the non-blocking recv
+    //  semantics.
+    while (true) {
+
+        //  Get a message using fair queueing algorithm.
+        int rc = fq.recv (msg_);
+
+        //  If there's no message available, return immediately.
+        //  The same when error occurs.
+        if (rc != 0)
+            return -1;
+
+        //  Check whether the message matches at least one subscription.
+        //  Non-initial parts of the message are passed
+        if (more || !options.filter || match (msg_)) {
+            more = msg_->flags () & msg_t::more ? true : false;
+            return 0;
+        }
+
+        //  Message doesn't match. Pop any remaining parts of the message
+        //  from the pipe.
+        while (msg_->flags () & msg_t::more) {
+            rc = fq.recv (msg_);
+            errno_assert (rc == 0);
+        }
+    }
+}
+
+bool zmq::xsub_t::xhas_in ()
+{
+    //  There are subsequent parts of the partly-read message available.
+    if (more)
+        return true;
+
+    //  If there's already a message prepared by a previous call to zmq_poll,
+    //  return straight ahead.
+    if (has_message)
+        return true;
+
+    //  TODO: This can result in infinite loop in the case of continuous
+    //  stream of non-matching messages.
+    while (true) {
+
+        //  Get a message using fair queueing algorithm.
+        int rc = fq.recv (&message);
+
+        //  If there's no message available, return immediately.
+        //  The same when error occurs.
+        if (rc != 0) {
+            errno_assert (errno == EAGAIN);
+            return false;
+        }
+
+        //  Check whether the message matches at least one subscription.
+        if (!options.filter || match (&message)) {
+            has_message = true;
+            return true;
+        }
+
+        //  Message doesn't match. Pop any remaining parts of the message
+        //  from the pipe.
+        while (message.flags () & msg_t::more) {
+            rc = fq.recv (&message);
+            errno_assert (rc == 0);
+        }
+    }
+}
+
+zmq::blob_t zmq::xsub_t::get_credential () const
+{
+    return fq.get_credential ();
+}
+
+bool zmq::xsub_t::match (msg_t *msg_)
+{
+    return subscriptions.check ((unsigned char*) msg_->data (), msg_->size ());
+}
+
+void zmq::xsub_t::send_subscription (unsigned char *data_, size_t size_,
+    void *arg_)
+{
+    pipe_t *pipe = (pipe_t*) arg_;
+
+    //  Create the subsctription message.
+    msg_t msg;
+    int rc = msg.init_size (size_ + 1);
+    errno_assert (rc == 0);
+    unsigned char *data = (unsigned char*) msg.data ();
+    data [0] = 1;
+    memcpy (data + 1, data_, size_);
+
+    //  Send it to the pipe.
+    bool sent = pipe->write (&msg);
+    //  If we reached the SNDHWM, and thus cannot send the subscription, drop
+    //  the subscription message instead. This matches the behaviour of
+    //  zmq_setsockopt(ZMQ_SUBSCRIBE, ...), which also drops subscriptions
+    //  when the SNDHWM is reached.
+    if (!sent)
+        msg.close ();
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/xsub.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/xsub.hpp
new file mode 100644
index 00000000..3a15fe7f
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/xsub.hpp
@@ -0,0 +1,103 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_XSUB_HPP_INCLUDED__
+#define __ZMQ_XSUB_HPP_INCLUDED__
+
+#include "socket_base.hpp"
+#include "session_base.hpp"
+#include "dist.hpp"
+#include "fq.hpp"
+#include "trie.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class pipe_t;
+    class io_thread_t;
+
+    class xsub_t :
+        public socket_base_t
+    {
+    public:
+
+        xsub_t (zmq::ctx_t *parent_, uint32_t tid_, int sid_);
+        ~xsub_t ();
+
+    protected:
+
+        //  Overrides of functions from socket_base_t.
+        void xattach_pipe (zmq::pipe_t *pipe_, bool subscribe_to_all_);
+        int xsend (zmq::msg_t *msg_);
+        bool xhas_out ();
+        int xrecv (zmq::msg_t *msg_);
+        bool xhas_in ();
+        blob_t get_credential () const;
+        void xread_activated (zmq::pipe_t *pipe_);
+        void xwrite_activated (zmq::pipe_t *pipe_);
+        void xhiccuped (pipe_t *pipe_);
+        void xpipe_terminated (zmq::pipe_t *pipe_);
+
+    private:
+
+        //  Check whether the message matches at least one subscription.
+        bool match (zmq::msg_t *msg_);
+
+        //  Function to be applied to the trie to send all the subsciptions
+        //  upstream.
+        static void send_subscription (unsigned char *data_, size_t size_,
+            void *arg_);
+
+        //  Fair queueing object for inbound pipes.
+        fq_t fq;
+
+        //  Object for distributing the subscriptions upstream.
+        dist_t dist;
+
+        //  The repository of subscriptions.
+        trie_t subscriptions;
+
+        //  If true, 'message' contains a matching message to return on the
+        //  next recv call.
+        bool has_message;
+        msg_t message;
+
+        //  If true, part of a multipart message was already received, but
+        //  there are following parts still waiting.
+        bool more;
+
+        xsub_t (const xsub_t&);
+        const xsub_t &operator = (const xsub_t&);
+    };
+
+}
+
+#endif
+
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ypipe.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ypipe.hpp
new file mode 100644
index 00000000..c3f2e96d
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ypipe.hpp
@@ -0,0 +1,219 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_YPIPE_HPP_INCLUDED__
+#define __ZMQ_YPIPE_HPP_INCLUDED__
+
+#include "atomic_ptr.hpp"
+#include "yqueue.hpp"
+#include "platform.hpp"
+#include "ypipe_base.hpp"
+
+namespace zmq
+{
+
+    //  Lock-free queue implementation.
+    //  Only a single thread can read from the pipe at any specific moment.
+    //  Only a single thread can write to the pipe at any specific moment.
+    //  T is the type of the object in the queue.
+    //  N is granularity of the pipe, i.e. how many items are needed to
+    //  perform next memory allocation.
+
+    template <typename T, int N> class ypipe_t : public ypipe_base_t <T>
+    {
+    public:
+
+        //  Initialises the pipe.
+        inline ypipe_t ()
+        {
+            //  Insert terminator element into the queue.
+            queue.push ();
+
+            //  Let all the pointers to point to the terminator.
+            //  (unless pipe is dead, in which case c is set to NULL).
+            r = w = f = &queue.back ();
+            c.set (&queue.back ());
+        }
+
+        //  The destructor doesn't have to be virtual. It is mad virtual
+        //  just to keep ICC and code checking tools from complaining.
+        inline virtual ~ypipe_t ()
+        {
+        }
+
+        //  Following function (write) deliberately copies uninitialised data
+        //  when used with zmq_msg. Initialising the VSM body for
+        //  non-VSM messages won't be good for performance.
+
+#ifdef ZMQ_HAVE_OPENVMS
+#pragma message save
+#pragma message disable(UNINIT)
+#endif
+
+        //  Write an item to the pipe.  Don't flush it yet. If incomplete is
+        //  set to true the item is assumed to be continued by items
+        //  subsequently written to the pipe. Incomplete items are never
+        //  flushed down the stream.
+        inline void write (const T &value_, bool incomplete_)
+        {
+            //  Place the value to the queue, add new terminator element.
+            queue.back () = value_;
+            queue.push ();
+
+            //  Move the "flush up to here" poiter.
+            if (!incomplete_)
+                f = &queue.back ();
+        }
+
+#ifdef ZMQ_HAVE_OPENVMS
+#pragma message restore
+#endif
+
+        //  Pop an incomplete item from the pipe. Returns true is such
+        //  item exists, false otherwise.
+        inline bool unwrite (T *value_)
+        {
+            if (f == &queue.back ())
+                return false;
+            queue.unpush ();
+            *value_ = queue.back ();
+            return true;
+        }
+
+        //  Flush all the completed items into the pipe. Returns false if
+        //  the reader thread is sleeping. In that case, caller is obliged to
+        //  wake the reader up before using the pipe again.
+        inline bool flush ()
+        {
+            //  If there are no un-flushed items, do nothing.
+            if (w == f)
+                return true;
+
+            //  Try to set 'c' to 'f'.
+            if (c.cas (w, f) != w) {
+
+                //  Compare-and-swap was unseccessful because 'c' is NULL.
+                //  This means that the reader is asleep. Therefore we don't
+                //  care about thread-safeness and update c in non-atomic
+                //  manner. We'll return false to let the caller know
+                //  that reader is sleeping.
+                c.set (f);
+                w = f;
+                return false;
+            }
+
+            //  Reader is alive. Nothing special to do now. Just move
+            //  the 'first un-flushed item' pointer to 'f'.
+            w = f;
+            return true;
+        }
+
+        //  Check whether item is available for reading.
+        inline bool check_read ()
+        {
+            //  Was the value prefetched already? If so, return.
+            if (&queue.front () != r && r)
+                 return true;
+
+            //  There's no prefetched value, so let us prefetch more values.
+            //  Prefetching is to simply retrieve the
+            //  pointer from c in atomic fashion. If there are no
+            //  items to prefetch, set c to NULL (using compare-and-swap).
+            r = c.cas (&queue.front (), NULL);
+
+            //  If there are no elements prefetched, exit.
+            //  During pipe's lifetime r should never be NULL, however,
+            //  it can happen during pipe shutdown when items
+            //  are being deallocated.
+            if (&queue.front () == r || !r)
+                return false;
+
+            //  There was at least one value prefetched.
+            return true;
+        }
+
+        //  Reads an item from the pipe. Returns false if there is no value.
+        //  available.
+        inline bool read (T *value_)
+        {
+            //  Try to prefetch a value.
+            if (!check_read ())
+                return false;
+
+            //  There was at least one value prefetched.
+            //  Return it to the caller.
+            *value_ = queue.front ();
+            queue.pop ();
+            return true;
+        }
+
+        //  Applies the function fn to the first elemenent in the pipe
+        //  and returns the value returned by the fn.
+        //  The pipe mustn't be empty or the function crashes.
+        inline bool probe (bool (*fn)(const T &))
+        {
+            bool rc = check_read ();
+            zmq_assert (rc);
+
+            return (*fn) (queue.front ());
+        }
+
+    protected:
+
+        //  Allocation-efficient queue to store pipe items.
+        //  Front of the queue points to the first prefetched item, back of
+        //  the pipe points to last un-flushed item. Front is used only by
+        //  reader thread, while back is used only by writer thread.
+        yqueue_t <T, N> queue;
+
+        //  Points to the first un-flushed item. This variable is used
+        //  exclusively by writer thread.
+        T *w;
+
+        //  Points to the first un-prefetched item. This variable is used
+        //  exclusively by reader thread.
+        T *r;
+
+        //  Points to the first item to be flushed in the future.
+        T *f;
+
+        //  The single point of contention between writer and reader thread.
+        //  Points past the last flushed item. If it is NULL,
+        //  reader is asleep. This pointer should be always accessed using
+        //  atomic operations.
+        atomic_ptr_t <T> c;
+
+        //  Disable copying of ypipe object.
+        ypipe_t (const ypipe_t&);
+        const ypipe_t &operator = (const ypipe_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ypipe_base.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ypipe_base.hpp
new file mode 100644
index 00000000..c541d2fb
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ypipe_base.hpp
@@ -0,0 +1,54 @@
+
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_YPIPE_BASE_HPP_INCLUDED__
+#define __ZMQ_YPIPE_BASE_HPP_INCLUDED__
+
+
+namespace zmq
+{
+    // ypipe_base abstracts ypipe and ypipe_conflate specific
+    // classes, one is selected according to a the conflate
+    // socket option
+
+    template <typename T> class ypipe_base_t
+    {
+    public:
+        virtual ~ypipe_base_t () {}
+        virtual void write (const T &value_, bool incomplete_) = 0;
+        virtual bool unwrite (T *value_) = 0;
+        virtual bool flush () = 0;
+        virtual bool check_read () = 0;
+        virtual bool read (T *value_) = 0;
+        virtual bool probe (bool (*fn)(const T &)) = 0;
+    };
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ypipe_conflate.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ypipe_conflate.hpp
new file mode 100644
index 00000000..683137a9
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/ypipe_conflate.hpp
@@ -0,0 +1,137 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_YPIPE_CONFLATE_HPP_INCLUDED__
+#define __ZMQ_YPIPE_CONFLATE_HPP_INCLUDED__
+
+#include "platform.hpp"
+#include "dbuffer.hpp"
+#include "ypipe_base.hpp"
+
+namespace zmq
+{
+
+    //  Adapter for dbuffer, to plug it in instead of a queue for the sake
+    //  of implementing the conflate socket option, which, if set, makes
+    //  the receiving side to discard all incoming messages but the last one.
+    //
+    //  reader_awake flag is needed here to mimic ypipe delicate behaviour
+    //  around the reader being asleep (see 'c' pointer being NULL in ypipe.hpp)
+
+    template <typename T> class ypipe_conflate_t : public ypipe_base_t <T>
+    {
+    public:
+
+        //  Initialises the pipe.
+        inline ypipe_conflate_t ()
+            : reader_awake(false)
+        {
+        }
+
+        //  The destructor doesn't have to be virtual. It is mad virtual
+        //  just to keep ICC and code checking tools from complaining.
+        inline virtual ~ypipe_conflate_t ()
+        {
+        }
+
+        //  Following function (write) deliberately copies uninitialised data
+        //  when used with zmq_msg. Initialising the VSM body for
+        //  non-VSM messages won't be good for performance.
+
+#ifdef ZMQ_HAVE_OPENVMS
+#pragma message save
+#pragma message disable(UNINIT)
+#endif
+        inline void write (const T &value_, bool incomplete_)
+        {
+            (void)incomplete_;
+
+            dbuffer.write (value_);
+        }
+
+#ifdef ZMQ_HAVE_OPENVMS
+#pragma message restore
+#endif
+
+        // There are no incomplete items for conflate ypipe
+        inline bool unwrite (T *)
+        {
+            return false;
+        }
+
+        //  Flush is no-op for conflate ypipe. Reader asleep behaviour
+        //  is as of the usual ypipe.
+        //  Returns false if the reader thread is sleeping. In that case,
+        //  caller is obliged to wake the reader up before using the pipe again.
+        inline bool flush ()
+        {
+            return reader_awake;
+        }
+
+        //  Check whether item is available for reading.
+        inline bool check_read ()
+        {
+            bool res = dbuffer.check_read ();
+            if (!res)
+                reader_awake = false;
+
+            return res;
+        }
+
+        //  Reads an item from the pipe. Returns false if there is no value.
+        //  available.
+        inline bool read (T *value_)
+        {
+            if (!check_read ())
+                return false;
+
+            return dbuffer.read (value_);
+        }
+
+        //  Applies the function fn to the first elemenent in the pipe
+        //  and returns the value returned by the fn.
+        //  The pipe mustn't be empty or the function crashes.
+        inline bool probe (bool (*fn)(const T &))
+        {
+            return dbuffer.probe (fn);
+        }
+
+    protected:
+
+        dbuffer_t <T> dbuffer;
+        bool reader_awake;
+
+        //  Disable copying of ypipe object.
+        ypipe_conflate_t (const ypipe_conflate_t&);
+        const ypipe_conflate_t &operator = (const ypipe_conflate_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/yqueue.hpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/yqueue.hpp
new file mode 100644
index 00000000..bd42b8a6
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/yqueue.hpp
@@ -0,0 +1,205 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_YQUEUE_HPP_INCLUDED__
+#define __ZMQ_YQUEUE_HPP_INCLUDED__
+
+#include <stdlib.h>
+#include <stddef.h>
+
+#include "err.hpp"
+#include "atomic_ptr.hpp"
+
+namespace zmq
+{
+
+    //  yqueue is an efficient queue implementation. The main goal is
+    //  to minimise number of allocations/deallocations needed. Thus yqueue
+    //  allocates/deallocates elements in batches of N.
+    //
+    //  yqueue allows one thread to use push/back function and another one
+    //  to use pop/front functions. However, user must ensure that there's no
+    //  pop on the empty queue and that both threads don't access the same
+    //  element in unsynchronised manner.
+    //
+    //  T is the type of the object in the queue.
+    //  N is granularity of the queue (how many pushes have to be done till
+    //  actual memory allocation is required).
+
+    template <typename T, int N> class yqueue_t
+    {
+    public:
+
+        //  Create the queue.
+        inline yqueue_t ()
+        {
+             begin_chunk = (chunk_t*) malloc (sizeof (chunk_t));
+             alloc_assert (begin_chunk);
+             begin_pos = 0;
+             back_chunk = NULL;
+             back_pos = 0;
+             end_chunk = begin_chunk;
+             end_pos = 0;
+        }
+
+        //  Destroy the queue.
+        inline ~yqueue_t ()
+        {
+            while (true) {
+                if (begin_chunk == end_chunk) {
+                    free (begin_chunk);
+                    break;
+                }
+                chunk_t *o = begin_chunk;
+                begin_chunk = begin_chunk->next;
+                free (o);
+            }
+
+            chunk_t *sc = spare_chunk.xchg (NULL);
+            free (sc);
+        }
+
+        //  Returns reference to the front element of the queue.
+        //  If the queue is empty, behaviour is undefined.
+        inline T &front ()
+        {
+             return begin_chunk->values [begin_pos];
+        }
+
+        //  Returns reference to the back element of the queue.
+        //  If the queue is empty, behaviour is undefined.
+        inline T &back ()
+        {
+            return back_chunk->values [back_pos];
+        }
+
+        //  Adds an element to the back end of the queue.
+        inline void push ()
+        {
+            back_chunk = end_chunk;
+            back_pos = end_pos;
+
+            if (++end_pos != N)
+                return;
+
+            chunk_t *sc = spare_chunk.xchg (NULL);
+            if (sc) {
+                end_chunk->next = sc;
+                sc->prev = end_chunk;
+            } else {
+                end_chunk->next = (chunk_t*) malloc (sizeof (chunk_t));
+                alloc_assert (end_chunk->next);
+                end_chunk->next->prev = end_chunk;
+            }
+            end_chunk = end_chunk->next;
+            end_pos = 0;
+        }
+
+        //  Removes element from the back end of the queue. In other words
+        //  it rollbacks last push to the queue. Take care: Caller is
+        //  responsible for destroying the object being unpushed.
+        //  The caller must also guarantee that the queue isn't empty when
+        //  unpush is called. It cannot be done automatically as the read
+        //  side of the queue can be managed by different, completely
+        //  unsynchronised thread.
+        inline void unpush ()
+        {
+            //  First, move 'back' one position backwards.
+            if (back_pos)
+                --back_pos;
+            else {
+                back_pos = N - 1;
+                back_chunk = back_chunk->prev;
+            }
+
+            //  Now, move 'end' position backwards. Note that obsolete end chunk
+            //  is not used as a spare chunk. The analysis shows that doing so
+            //  would require free and atomic operation per chunk deallocated
+            //  instead of a simple free.
+            if (end_pos)
+                --end_pos;
+            else {
+                end_pos = N - 1;
+                end_chunk = end_chunk->prev;
+                free (end_chunk->next);
+                end_chunk->next = NULL;
+            }
+        }
+
+        //  Removes an element from the front end of the queue.
+        inline void pop ()
+        {
+            if (++ begin_pos == N) {
+                chunk_t *o = begin_chunk;
+                begin_chunk = begin_chunk->next;
+                begin_chunk->prev = NULL;
+                begin_pos = 0;
+
+                //  'o' has been more recently used than spare_chunk,
+                //  so for cache reasons we'll get rid of the spare and
+                //  use 'o' as the spare.
+                chunk_t *cs = spare_chunk.xchg (o);
+                free (cs);
+            }
+        }
+
+    private:
+
+        //  Individual memory chunk to hold N elements.
+        struct chunk_t
+        {
+             T values [N];
+             chunk_t *prev;
+             chunk_t *next;
+        };
+
+        //  Back position may point to invalid memory if the queue is empty,
+        //  while begin & end positions are always valid. Begin position is
+        //  accessed exclusively be queue reader (front/pop), while back and
+        //  end positions are accessed exclusively by queue writer (back/push).
+        chunk_t *begin_chunk;
+        int begin_pos;
+        chunk_t *back_chunk;
+        int back_pos;
+        chunk_t *end_chunk;
+        int end_pos;
+
+        //  People are likely to produce and consume at similar rates.  In
+        //  this scenario holding onto the most recently freed chunk saves
+        //  us from having to call malloc/free.
+        atomic_ptr_t<chunk_t> spare_chunk;
+
+        //  Disable copying of yqueue.
+        yqueue_t (const yqueue_t&);
+        const yqueue_t &operator = (const yqueue_t&);
+    };
+
+}
+
+#endif
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/zmq.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/zmq.cpp
new file mode 100644
index 00000000..f0f9a099
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/zmq.cpp
@@ -0,0 +1,1095 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#define ZMQ_TYPE_UNSAFE
+
+#include "poller.hpp"
+
+//  On AIX platform, poll.h has to be included first to get consistent
+//  definition of pollfd structure (AIX uses 'reqevents' and 'retnevents'
+//  instead of 'events' and 'revents' and defines macros to map from POSIX-y
+//  names to AIX-specific names).
+#if defined ZMQ_POLL_BASED_ON_POLL
+#include <poll.h>
+#endif
+
+// zmq.h must be included *after* poll.h for AIX to build properly
+#include "../include/zmq.h"
+
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <unistd.h>
+#endif
+
+
+// XSI vector I/O
+#if defined ZMQ_HAVE_UIO
+#include <sys/uio.h>
+#else
+struct iovec {
+    void *iov_base;
+    size_t iov_len;
+};
+#endif
+
+
+#include <string.h>
+#include <stdlib.h>
+#include <new>
+
+#include "proxy.hpp"
+#include "socket_base.hpp"
+#include "stdint.hpp"
+#include "config.hpp"
+#include "likely.hpp"
+#include "clock.hpp"
+#include "ctx.hpp"
+#include "err.hpp"
+#include "msg.hpp"
+#include "fd.hpp"
+#include "metadata.hpp"
+
+#if !defined ZMQ_HAVE_WINDOWS
+#include <unistd.h>
+#endif
+
+#if defined ZMQ_HAVE_OPENPGM
+#define __PGM_WININT_H__
+#include <pgm/pgm.h>
+#endif
+
+//  Compile time check whether msg_t fits into zmq_msg_t.
+typedef char check_msg_t_size
+    [sizeof (zmq::msg_t) ==  sizeof (zmq_msg_t) ? 1 : -1];
+
+
+void zmq_version (int *major_, int *minor_, int *patch_)
+{
+    *major_ = ZMQ_VERSION_MAJOR;
+    *minor_ = ZMQ_VERSION_MINOR;
+    *patch_ = ZMQ_VERSION_PATCH;
+}
+
+
+const char *zmq_strerror (int errnum_)
+{
+    return zmq::errno_to_string (errnum_);
+}
+
+int zmq_errno (void)
+{
+    return errno;
+}
+
+
+//  New context API
+
+void *zmq_ctx_new (void)
+{
+#if defined ZMQ_HAVE_OPENPGM
+
+    //  Init PGM transport. Ensure threading and timer are enabled. Find PGM
+    //  protocol ID. Note that if you want to use gettimeofday and sleep for
+    //  openPGM timing, set environment variables PGM_TIMER to "GTOD" and
+    //  PGM_SLEEP to "USLEEP".
+    pgm_error_t *pgm_error = NULL;
+    const bool ok = pgm_init (&pgm_error);
+    if (ok != TRUE) {
+
+        //  Invalid parameters don't set pgm_error_t
+        zmq_assert (pgm_error != NULL);
+        if (pgm_error->domain == PGM_ERROR_DOMAIN_TIME && (
+              pgm_error->code == PGM_ERROR_FAILED)) {
+
+            //  Failed to access RTC or HPET device.
+            pgm_error_free (pgm_error);
+            errno = EINVAL;
+            return NULL;
+        }
+
+        //  PGM_ERROR_DOMAIN_ENGINE: WSAStartup errors or missing WSARecvMsg.
+        zmq_assert (false);
+    }
+#endif
+
+#ifdef ZMQ_HAVE_WINDOWS
+    //  Intialise Windows sockets. Note that WSAStartup can be called multiple
+    //  times given that WSACleanup will be called for each WSAStartup.
+   //  We do this before the ctx constructor since its embedded mailbox_t
+   //  object needs Winsock to be up and running.
+    WORD version_requested = MAKEWORD (2, 2);
+    WSADATA wsa_data;
+    int rc = WSAStartup (version_requested, &wsa_data);
+    zmq_assert (rc == 0);
+    zmq_assert (LOBYTE (wsa_data.wVersion) == 2 &&
+        HIBYTE (wsa_data.wVersion) == 2);
+#endif
+
+    //  Create 0MQ context.
+    zmq::ctx_t *ctx = new (std::nothrow) zmq::ctx_t;
+    alloc_assert (ctx);
+    return ctx;
+}
+
+int zmq_ctx_term (void *ctx_)
+{
+    if (!ctx_ || !((zmq::ctx_t*) ctx_)->check_tag ()) {
+        errno = EFAULT;
+        return -1;
+    }
+
+    int rc = ((zmq::ctx_t*) ctx_)->terminate ();
+    int en = errno;
+
+    //  Shut down only if termination was not interrupted by a signal.
+    if (!rc || en != EINTR) {
+#ifdef ZMQ_HAVE_WINDOWS
+        //  On Windows, uninitialise socket layer.
+        rc = WSACleanup ();
+        wsa_assert (rc != SOCKET_ERROR);
+#endif
+
+#if defined ZMQ_HAVE_OPENPGM
+        //  Shut down the OpenPGM library.
+        if (pgm_shutdown () != TRUE)
+            zmq_assert (false);
+#endif
+    }
+
+    errno = en;
+    return rc;
+}
+
+int zmq_ctx_shutdown (void *ctx_)
+{
+    if (!ctx_ || !((zmq::ctx_t*) ctx_)->check_tag ()) {
+        errno = EFAULT;
+        return -1;
+    }
+
+    return ((zmq::ctx_t*) ctx_)->shutdown ();
+}
+
+int zmq_ctx_set (void *ctx_, int option_, int optval_)
+{
+    if (!ctx_ || !((zmq::ctx_t*) ctx_)->check_tag ()) {
+        errno = EFAULT;
+        return -1;
+    }
+    return ((zmq::ctx_t*) ctx_)->set (option_, optval_);
+}
+
+int zmq_ctx_get (void *ctx_, int option_)
+{
+    if (!ctx_ || !((zmq::ctx_t*) ctx_)->check_tag ()) {
+        errno = EFAULT;
+        return -1;
+    }
+    return ((zmq::ctx_t*) ctx_)->get (option_);
+}
+
+//  Stable/legacy context API
+
+void *zmq_init (int io_threads_)
+{
+    if (io_threads_ >= 0) {
+        void *ctx = zmq_ctx_new ();
+        zmq_ctx_set (ctx, ZMQ_IO_THREADS, io_threads_);
+        return ctx;
+    }
+    errno = EINVAL;
+    return NULL;
+}
+
+int zmq_term (void *ctx_)
+{
+    return zmq_ctx_term (ctx_);
+}
+
+int zmq_ctx_destroy (void *ctx_)
+{
+    return zmq_ctx_term (ctx_);
+}
+
+
+// Sockets
+
+void *zmq_socket (void *ctx_, int type_)
+{
+    if (!ctx_ || !((zmq::ctx_t*) ctx_)->check_tag ()) {
+        errno = EFAULT;
+        return NULL;
+    }
+    zmq::ctx_t *ctx = (zmq::ctx_t*) ctx_;
+    zmq::socket_base_t *s = ctx->create_socket (type_);
+    return (void *) s;
+}
+
+int zmq_close (void *s_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    ((zmq::socket_base_t*) s_)->close ();
+    return 0;
+}
+
+int zmq_setsockopt (void *s_, int option_, const void *optval_,
+    size_t optvallen_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    zmq::socket_base_t *s = (zmq::socket_base_t *) s_;
+    int result = s->setsockopt (option_, optval_, optvallen_);
+    return result;
+}
+
+int zmq_getsockopt (void *s_, int option_, void *optval_, size_t *optvallen_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    zmq::socket_base_t *s = (zmq::socket_base_t *) s_;
+    int result = s->getsockopt (option_, optval_, optvallen_);
+    return result;
+}
+
+int zmq_socket_monitor (void *s_, const char *addr_, int events_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    zmq::socket_base_t *s = (zmq::socket_base_t *) s_;
+    int result = s->monitor (addr_, events_);
+    return result;
+}
+
+int zmq_bind (void *s_, const char *addr_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    zmq::socket_base_t *s = (zmq::socket_base_t *) s_;
+    int result = s->bind (addr_);
+    return result;
+}
+
+int zmq_connect (void *s_, const char *addr_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    zmq::socket_base_t *s = (zmq::socket_base_t *) s_;
+    int result = s->connect (addr_);
+    return result;
+}
+
+int zmq_unbind (void *s_, const char *addr_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    zmq::socket_base_t *s = (zmq::socket_base_t *) s_;
+    return s->term_endpoint (addr_);
+}
+
+int zmq_disconnect (void *s_, const char *addr_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    zmq::socket_base_t *s = (zmq::socket_base_t *) s_;
+    return s->term_endpoint (addr_);
+}
+
+// Sending functions.
+
+static int
+s_sendmsg (zmq::socket_base_t *s_, zmq_msg_t *msg_, int flags_)
+{
+    int sz = (int) zmq_msg_size (msg_);
+    int rc = s_->send ((zmq::msg_t*) msg_, flags_);
+    if (unlikely (rc < 0))
+        return -1;
+    return sz;
+}
+
+/*  To be deprecated once zmq_msg_send() is stable                           */
+int zmq_sendmsg (void *s_, zmq_msg_t *msg_, int flags_)
+{
+    return zmq_msg_send (msg_, s_, flags_);
+}
+
+int zmq_send (void *s_, const void *buf_, size_t len_, int flags_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    zmq_msg_t msg;
+    int rc = zmq_msg_init_size (&msg, len_);
+    if (rc != 0)
+        return -1;
+    memcpy (zmq_msg_data (&msg), buf_, len_);
+
+    zmq::socket_base_t *s = (zmq::socket_base_t *) s_;
+    rc = s_sendmsg (s, &msg, flags_);
+    if (unlikely (rc < 0)) {
+        int err = errno;
+        int rc2 = zmq_msg_close (&msg);
+        errno_assert (rc2 == 0);
+        errno = err;
+        return -1;
+    }
+
+    //  Note the optimisation here. We don't close the msg object as it is
+    //  empty anyway. This may change when implementation of zmq_msg_t changes.
+    return rc;
+}
+
+int zmq_send_const (void *s_, const void *buf_, size_t len_, int flags_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    zmq_msg_t msg;
+    int rc = zmq_msg_init_data (&msg, (void*)buf_, len_, NULL, NULL);
+    if (rc != 0)
+        return -1;
+
+    zmq::socket_base_t *s = (zmq::socket_base_t *) s_;
+    rc = s_sendmsg (s, &msg, flags_);
+    if (unlikely (rc < 0)) {
+        int err = errno;
+        int rc2 = zmq_msg_close (&msg);
+        errno_assert (rc2 == 0);
+        errno = err;
+        return -1;
+    }
+
+    //  Note the optimisation here. We don't close the msg object as it is
+    //  empty anyway. This may change when implementation of zmq_msg_t changes.
+    return rc;
+}
+
+
+// Send multiple messages.
+// TODO: this function has no man page
+//
+// If flag bit ZMQ_SNDMORE is set the vector is treated as
+// a single multi-part message, i.e. the last message has
+// ZMQ_SNDMORE bit switched off.
+//
+int zmq_sendiov (void *s_, iovec *a_, size_t count_, int flags_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    int rc = 0;
+    zmq_msg_t msg;
+    zmq::socket_base_t *s = (zmq::socket_base_t *) s_;
+
+    for (size_t i = 0; i < count_; ++i) {
+        rc = zmq_msg_init_size (&msg, a_[i].iov_len);
+        if (rc != 0) {
+            rc = -1;
+            break;
+        }
+        memcpy (zmq_msg_data (&msg), a_[i].iov_base, a_[i].iov_len);
+        if (i == count_ - 1)
+            flags_ = flags_ & ~ZMQ_SNDMORE;
+        rc = s_sendmsg (s, &msg, flags_);
+        if (unlikely (rc < 0)) {
+           int err = errno;
+           int rc2 = zmq_msg_close (&msg);
+           errno_assert (rc2 == 0);
+           errno = err;
+           rc = -1;
+           break;
+        }
+    }
+    return rc;
+}
+
+// Receiving functions.
+
+static int
+s_recvmsg (zmq::socket_base_t *s_, zmq_msg_t *msg_, int flags_)
+{
+    int rc = s_->recv ((zmq::msg_t*) msg_, flags_);
+    if (unlikely (rc < 0))
+        return -1;
+    return (int) zmq_msg_size (msg_);
+}
+
+/*  To be deprecated once zmq_msg_recv() is stable                           */
+int zmq_recvmsg (void *s_, zmq_msg_t *msg_, int flags_)
+{
+    return zmq_msg_recv (msg_, s_, flags_);
+}
+
+
+int zmq_recv (void *s_, void *buf_, size_t len_, int flags_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    zmq_msg_t msg;
+    int rc = zmq_msg_init (&msg);
+    errno_assert (rc == 0);
+
+    zmq::socket_base_t *s = (zmq::socket_base_t *) s_;
+    int nbytes = s_recvmsg (s, &msg, flags_);
+    if (unlikely (nbytes < 0)) {
+        int err = errno;
+        rc = zmq_msg_close (&msg);
+        errno_assert (rc == 0);
+        errno = err;
+        return -1;
+    }
+
+    //  At the moment an oversized message is silently truncated.
+    //  TODO: Build in a notification mechanism to report the overflows.
+    size_t to_copy = size_t (nbytes) < len_ ? size_t (nbytes) : len_;
+    memcpy (buf_, zmq_msg_data (&msg), to_copy);
+
+    rc = zmq_msg_close (&msg);
+    errno_assert (rc == 0);
+
+    return nbytes;
+}
+
+// Receive a multi-part message
+//
+// Receives up to *count_ parts of a multi-part message.
+// Sets *count_ to the actual number of parts read.
+// ZMQ_RCVMORE is set to indicate if a complete multi-part message was read.
+// Returns number of message parts read, or -1 on error.
+//
+// Note: even if -1 is returned, some parts of the message
+// may have been read. Therefore the client must consult
+// *count_ to retrieve message parts successfully read,
+// even if -1 is returned.
+//
+// The iov_base* buffers of each iovec *a_ filled in by this
+// function may be freed using free().
+// TODO: this function has no man page
+//
+int zmq_recviov (void *s_, iovec *a_, size_t *count_, int flags_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    zmq::socket_base_t *s = (zmq::socket_base_t *) s_;
+
+    size_t count = *count_;
+    int nread = 0;
+    bool recvmore = true;
+
+    *count_ = 0;
+
+    for (size_t i = 0; recvmore && i < count; ++i) {
+
+        zmq_msg_t msg;
+        int rc = zmq_msg_init (&msg);
+        errno_assert (rc == 0);
+
+        int nbytes = s_recvmsg (s, &msg, flags_);
+        if (unlikely (nbytes < 0)) {
+            int err = errno;
+            rc = zmq_msg_close (&msg);
+            errno_assert (rc == 0);
+            errno = err;
+            nread = -1;
+            break;
+        }
+
+        a_[i].iov_len = zmq_msg_size (&msg);
+        a_[i].iov_base = static_cast<char *> (malloc(a_[i].iov_len));
+        if (unlikely (!a_[i].iov_base)) {
+            errno = ENOMEM;
+            return -1;
+        }
+        memcpy(a_[i].iov_base,static_cast<char *> (zmq_msg_data (&msg)),
+               a_[i].iov_len);
+        // Assume zmq_socket ZMQ_RVCMORE is properly set.
+        recvmore = ((zmq::msg_t*) (void *) &msg)->flags () & zmq::msg_t::more;
+        rc = zmq_msg_close(&msg);
+        errno_assert (rc == 0);
+        ++*count_;
+        ++nread;
+    }
+    return nread;
+}
+
+// Message manipulators.
+
+int zmq_msg_init (zmq_msg_t *msg_)
+{
+    return ((zmq::msg_t*) msg_)->init ();
+}
+
+int zmq_msg_init_size (zmq_msg_t *msg_, size_t size_)
+{
+    return ((zmq::msg_t*) msg_)->init_size (size_);
+}
+
+int zmq_msg_init_data (zmq_msg_t *msg_, void *data_, size_t size_,
+    zmq_free_fn *ffn_, void *hint_)
+{
+    return ((zmq::msg_t*) msg_)->init_data (data_, size_, ffn_, hint_);
+}
+
+int zmq_msg_send (zmq_msg_t *msg_, void *s_, int flags_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    zmq::socket_base_t *s = (zmq::socket_base_t *) s_;
+    int result = s_sendmsg (s, msg_, flags_);
+    return result;
+}
+
+int zmq_msg_recv (zmq_msg_t *msg_, void *s_, int flags_)
+{
+    if (!s_ || !((zmq::socket_base_t*) s_)->check_tag ()) {
+        errno = ENOTSOCK;
+        return -1;
+    }
+    zmq::socket_base_t *s = (zmq::socket_base_t *) s_;
+    int result = s_recvmsg (s, msg_, flags_);
+    return result;
+}
+
+int zmq_msg_close (zmq_msg_t *msg_)
+{
+    return ((zmq::msg_t*) msg_)->close ();
+}
+
+int zmq_msg_move (zmq_msg_t *dest_, zmq_msg_t *src_)
+{
+    return ((zmq::msg_t*) dest_)->move (*(zmq::msg_t*) src_);
+}
+
+int zmq_msg_copy (zmq_msg_t *dest_, zmq_msg_t *src_)
+{
+    return ((zmq::msg_t*) dest_)->copy (*(zmq::msg_t*) src_);
+}
+
+void *zmq_msg_data (zmq_msg_t *msg_)
+{
+    return ((zmq::msg_t*) msg_)->data ();
+}
+
+size_t zmq_msg_size (zmq_msg_t *msg_)
+{
+    return ((zmq::msg_t*) msg_)->size ();
+}
+
+int zmq_msg_more (zmq_msg_t *msg_)
+{
+    return zmq_msg_get (msg_, ZMQ_MORE);
+}
+
+int zmq_msg_get (zmq_msg_t *msg_, int property_)
+{
+    switch (property_) {
+        case ZMQ_MORE:
+            return (((zmq::msg_t*) msg_)->flags () & zmq::msg_t::more)? 1: 0;
+        case ZMQ_SRCFD:
+            // warning: int64_t to int
+            return ((zmq::msg_t*) msg_)->fd ();
+        case ZMQ_SHARED:
+            return (((zmq::msg_t*) msg_)->is_cmsg ()) ||
+                   (((zmq::msg_t*) msg_)->flags () & zmq::msg_t::shared)? 1: 0;
+        default:
+            errno = EINVAL;
+            return -1;
+    }
+}
+
+int zmq_msg_set (zmq_msg_t *, int, int)
+{
+    //  No properties supported at present
+    errno = EINVAL;
+    return -1;
+}
+
+
+//  Get message metadata string
+
+const char *zmq_msg_gets (zmq_msg_t *msg_, const char *property_)
+{
+    zmq::metadata_t *metadata = ((zmq::msg_t*) msg_)->metadata ();
+    const char *value = NULL;
+    if (metadata)
+        value = metadata->get (std::string (property_));
+    if (value)
+        return value;
+    else {
+        errno = EINVAL;
+        return NULL;
+    }
+}
+
+// Polling.
+
+int zmq_poll (zmq_pollitem_t *items_, int nitems_, long timeout_)
+{
+#if defined ZMQ_POLL_BASED_ON_POLL
+    if (unlikely (nitems_ < 0)) {
+        errno = EINVAL;
+        return -1;
+    }
+    if (unlikely (nitems_ == 0)) {
+        if (timeout_ == 0)
+            return 0;
+#if defined ZMQ_HAVE_WINDOWS
+        Sleep (timeout_ > 0 ? timeout_ : INFINITE);
+        return 0;
+#elif defined ZMQ_HAVE_ANDROID
+        usleep (timeout_ * 1000);
+        return 0;
+#else
+        return usleep (timeout_ * 1000);
+#endif
+    }
+
+    if (!items_) {
+        errno = EFAULT;
+        return -1;
+    }
+
+    zmq::clock_t clock;
+    uint64_t now = 0;
+    uint64_t end = 0;
+    pollfd spollfds[ZMQ_POLLITEMS_DFLT];
+    pollfd *pollfds = spollfds;
+
+    if (nitems_ > ZMQ_POLLITEMS_DFLT) {
+        pollfds = (pollfd*) malloc (nitems_ * sizeof (pollfd));
+        alloc_assert (pollfds);
+    }
+
+    //  Build pollset for poll () system call.
+    for (int i = 0; i != nitems_; i++) {
+
+        //  If the poll item is a 0MQ socket, we poll on the file descriptor
+        //  retrieved by the ZMQ_FD socket option.
+        if (items_ [i].socket) {
+            size_t zmq_fd_size = sizeof (zmq::fd_t);
+            if (zmq_getsockopt (items_ [i].socket, ZMQ_FD, &pollfds [i].fd,
+                &zmq_fd_size) == -1) {
+                if (pollfds != spollfds)
+                    free (pollfds);
+                return -1;
+            }
+            pollfds [i].events = items_ [i].events ? POLLIN : 0;
+        }
+        //  Else, the poll item is a raw file descriptor. Just convert the
+        //  events to normal POLLIN/POLLOUT for poll ().
+        else {
+            pollfds [i].fd = items_ [i].fd;
+            pollfds [i].events =
+                (items_ [i].events & ZMQ_POLLIN ? POLLIN : 0) |
+                (items_ [i].events & ZMQ_POLLOUT ? POLLOUT : 0);
+        }
+    }
+
+    bool first_pass = true;
+    int nevents = 0;
+
+    while (true) {
+        //  Compute the timeout for the subsequent poll.
+        int timeout;
+        if (first_pass)
+            timeout = 0;
+        else
+        if (timeout_ < 0)
+            timeout = -1;
+        else
+            timeout = end - now;
+
+        //  Wait for events.
+        while (true) {
+            int rc = poll (pollfds, nitems_, timeout);
+            if (rc == -1 && errno == EINTR) {
+                if (pollfds != spollfds)
+                    free (pollfds);
+                return -1;
+            }
+            errno_assert (rc >= 0);
+            break;
+        }
+        //  Check for the events.
+        for (int i = 0; i != nitems_; i++) {
+
+            items_ [i].revents = 0;
+
+            //  The poll item is a 0MQ socket. Retrieve pending events
+            //  using the ZMQ_EVENTS socket option.
+            if (items_ [i].socket) {
+                size_t zmq_events_size = sizeof (uint32_t);
+                uint32_t zmq_events;
+                if (zmq_getsockopt (items_ [i].socket, ZMQ_EVENTS, &zmq_events,
+                    &zmq_events_size) == -1) {
+                    if (pollfds != spollfds)
+                        free (pollfds);
+                    return -1;
+                }
+                if ((items_ [i].events & ZMQ_POLLOUT) &&
+                      (zmq_events & ZMQ_POLLOUT))
+                    items_ [i].revents |= ZMQ_POLLOUT;
+                if ((items_ [i].events & ZMQ_POLLIN) &&
+                      (zmq_events & ZMQ_POLLIN))
+                    items_ [i].revents |= ZMQ_POLLIN;
+            }
+            //  Else, the poll item is a raw file descriptor, simply convert
+            //  the events to zmq_pollitem_t-style format.
+            else {
+                if (pollfds [i].revents & POLLIN)
+                    items_ [i].revents |= ZMQ_POLLIN;
+                if (pollfds [i].revents & POLLOUT)
+                    items_ [i].revents |= ZMQ_POLLOUT;
+                if (pollfds [i].revents & ~(POLLIN | POLLOUT))
+                    items_ [i].revents |= ZMQ_POLLERR;
+            }
+
+            if (items_ [i].revents)
+                nevents++;
+        }
+
+        //  If timout is zero, exit immediately whether there are events or not.
+        if (timeout_ == 0)
+            break;
+
+        //  If there are events to return, we can exit immediately.
+        if (nevents)
+            break;
+
+        //  At this point we are meant to wait for events but there are none.
+        //  If timeout is infinite we can just loop until we get some events.
+        if (timeout_ < 0) {
+            if (first_pass)
+                first_pass = false;
+            continue;
+        }
+
+        //  The timeout is finite and there are no events. In the first pass
+        //  we get a timestamp of when the polling have begun. (We assume that
+        //  first pass have taken negligible time). We also compute the time
+        //  when the polling should time out.
+        if (first_pass) {
+            now = clock.now_ms ();
+            end = now + timeout_;
+            if (now == end)
+                break;
+            first_pass = false;
+            continue;
+        }
+
+        //  Find out whether timeout have expired.
+        now = clock.now_ms ();
+        if (now >= end)
+            break;
+    }
+
+    if (pollfds != spollfds)
+        free (pollfds);
+    return nevents;
+
+#elif defined ZMQ_POLL_BASED_ON_SELECT
+
+    if (unlikely (nitems_ < 0)) {
+        errno = EINVAL;
+        return -1;
+    }
+    if (unlikely (nitems_ == 0)) {
+        if (timeout_ == 0)
+            return 0;
+#if defined ZMQ_HAVE_WINDOWS
+        Sleep (timeout_ > 0 ? timeout_ : INFINITE);
+        return 0;
+#else
+        return usleep (timeout_ * 1000);
+#endif
+    }
+    zmq::clock_t clock;
+    uint64_t now = 0;
+    uint64_t end = 0;
+
+    //  Ensure we do not attempt to select () on more than FD_SETSIZE
+    //  file descriptors.
+    zmq_assert (nitems_ <= FD_SETSIZE);
+
+    fd_set pollset_in;
+    FD_ZERO (&pollset_in);
+    fd_set pollset_out;
+    FD_ZERO (&pollset_out);
+    fd_set pollset_err;
+    FD_ZERO (&pollset_err);
+
+    zmq::fd_t maxfd = 0;
+
+    //  Build the fd_sets for passing to select ().
+    for (int i = 0; i != nitems_; i++) {
+
+        //  If the poll item is a 0MQ socket we are interested in input on the
+        //  notification file descriptor retrieved by the ZMQ_FD socket option.
+        if (items_ [i].socket) {
+            size_t zmq_fd_size = sizeof (zmq::fd_t);
+            zmq::fd_t notify_fd;
+            if (zmq_getsockopt (items_ [i].socket, ZMQ_FD, &notify_fd,
+                &zmq_fd_size) == -1)
+                return -1;
+            if (items_ [i].events) {
+                FD_SET (notify_fd, &pollset_in);
+                if (maxfd < notify_fd)
+                    maxfd = notify_fd;
+            }
+        }
+        //  Else, the poll item is a raw file descriptor. Convert the poll item
+        //  events to the appropriate fd_sets.
+        else {
+            if (items_ [i].events & ZMQ_POLLIN)
+                FD_SET (items_ [i].fd, &pollset_in);
+            if (items_ [i].events & ZMQ_POLLOUT)
+                FD_SET (items_ [i].fd, &pollset_out);
+            if (items_ [i].events & ZMQ_POLLERR)
+                FD_SET (items_ [i].fd, &pollset_err);
+            if (maxfd < items_ [i].fd)
+                maxfd = items_ [i].fd;
+        }
+    }
+
+    bool first_pass = true;
+    int nevents = 0;
+    fd_set inset, outset, errset;
+
+    while (true) {
+
+        //  Compute the timeout for the subsequent poll.
+        timeval timeout;
+        timeval *ptimeout;
+        if (first_pass) {
+            timeout.tv_sec = 0;
+            timeout.tv_usec = 0;
+            ptimeout = &timeout;
+        }
+        else
+        if (timeout_ < 0)
+            ptimeout = NULL;
+        else {
+            timeout.tv_sec = (long) ((end - now) / 1000);
+            timeout.tv_usec = (long) ((end - now) % 1000 * 1000);
+            ptimeout = &timeout;
+        }
+
+        //  Wait for events. Ignore interrupts if there's infinite timeout.
+        while (true) {
+            memcpy (&inset, &pollset_in, sizeof (fd_set));
+            memcpy (&outset, &pollset_out, sizeof (fd_set));
+            memcpy (&errset, &pollset_err, sizeof (fd_set));
+#if defined ZMQ_HAVE_WINDOWS
+            int rc = select (0, &inset, &outset, &errset, ptimeout);
+            if (unlikely (rc == SOCKET_ERROR)) {
+                errno = zmq::wsa_error_to_errno (WSAGetLastError ());
+                wsa_assert (errno == ENOTSOCK);
+                return -1;
+            }
+#else
+            int rc = select (maxfd + 1, &inset, &outset, &errset, ptimeout);
+            if (unlikely (rc == -1)) {
+                errno_assert (errno == EINTR || errno == EBADF);
+                return -1;
+            }
+#endif
+            break;
+        }
+
+        //  Check for the events.
+        for (int i = 0; i != nitems_; i++) {
+
+            items_ [i].revents = 0;
+
+            //  The poll item is a 0MQ socket. Retrieve pending events
+            //  using the ZMQ_EVENTS socket option.
+            if (items_ [i].socket) {
+                size_t zmq_events_size = sizeof (uint32_t);
+                uint32_t zmq_events;
+                if (zmq_getsockopt (items_ [i].socket, ZMQ_EVENTS, &zmq_events,
+                      &zmq_events_size) == -1)
+                    return -1;
+                if ((items_ [i].events & ZMQ_POLLOUT) &&
+                      (zmq_events & ZMQ_POLLOUT))
+                    items_ [i].revents |= ZMQ_POLLOUT;
+                if ((items_ [i].events & ZMQ_POLLIN) &&
+                      (zmq_events & ZMQ_POLLIN))
+                    items_ [i].revents |= ZMQ_POLLIN;
+            }
+            //  Else, the poll item is a raw file descriptor, simply convert
+            //  the events to zmq_pollitem_t-style format.
+            else {
+                if (FD_ISSET (items_ [i].fd, &inset))
+                    items_ [i].revents |= ZMQ_POLLIN;
+                if (FD_ISSET (items_ [i].fd, &outset))
+                    items_ [i].revents |= ZMQ_POLLOUT;
+                if (FD_ISSET (items_ [i].fd, &errset))
+                    items_ [i].revents |= ZMQ_POLLERR;
+            }
+
+            if (items_ [i].revents)
+                nevents++;
+        }
+
+        //  If timout is zero, exit immediately whether there are events or not.
+        if (timeout_ == 0)
+            break;
+
+        //  If there are events to return, we can exit immediately.
+        if (nevents)
+            break;
+
+        //  At this point we are meant to wait for events but there are none.
+        //  If timeout is infinite we can just loop until we get some events.
+        if (timeout_ < 0) {
+            if (first_pass)
+                first_pass = false;
+            continue;
+        }
+
+        //  The timeout is finite and there are no events. In the first pass
+        //  we get a timestamp of when the polling have begun. (We assume that
+        //  first pass have taken negligible time). We also compute the time
+        //  when the polling should time out.
+        if (first_pass) {
+            now = clock.now_ms ();
+            end = now + timeout_;
+            if (now == end)
+                break;
+            first_pass = false;
+            continue;
+        }
+
+        //  Find out whether timeout have expired.
+        now = clock.now_ms ();
+        if (now >= end)
+            break;
+    }
+
+    return nevents;
+
+#else
+    //  Exotic platforms that support neither poll() nor select().
+    errno = ENOTSUP;
+    return -1;
+#endif
+}
+
+//  The proxy functionality
+
+int zmq_proxy (void *frontend_, void *backend_, void *capture_)
+{
+    if (!frontend_ || !backend_) {
+        errno = EFAULT;
+        return -1;
+    }
+    return zmq::proxy (
+        (zmq::socket_base_t*) frontend_,
+        (zmq::socket_base_t*) backend_,
+        (zmq::socket_base_t*) capture_);
+}
+
+int zmq_proxy_steerable (void *frontend_, void *backend_, void *capture_, void *control_)
+{
+    if (!frontend_ || !backend_) {
+        errno = EFAULT;
+        return -1;
+    }
+    return zmq::proxy (
+        (zmq::socket_base_t*) frontend_,
+        (zmq::socket_base_t*) backend_,
+        (zmq::socket_base_t*) capture_,
+        (zmq::socket_base_t*) control_);
+}
+
+//  The deprecated device functionality
+
+int zmq_device (int /* type */, void *frontend_, void *backend_)
+{
+    return zmq::proxy (
+        (zmq::socket_base_t*) frontend_,
+        (zmq::socket_base_t*) backend_, NULL);
+}
+
+//  Probe library capabilities; for now, reports on transport and security
+
+int zmq_has (const char *capability)
+{
+#if !defined (ZMQ_HAVE_WINDOWS) && !defined (ZMQ_HAVE_OPENVMS)
+    if (strcmp (capability, "ipc") == 0)
+        return true;
+#endif
+#if defined (ZMQ_HAVE_OPENPGM)
+    if (strcmp (capability, "pgm") == 0)
+        return true;
+#endif
+#if defined (ZMQ_HAVE_TIPC)
+    if (strcmp (capability, "tipc") == 0)
+        return true;
+#endif
+#if defined (ZMQ_HAVE_NORM)
+    if (strcmp (capability, "norm") == 0)
+        return true;
+#endif
+#if defined (HAVE_LIBSODIUM)
+    if (strcmp (capability, "curve") == 0)
+        return true;
+#endif
+#if defined (HAVE_LIBGSSAPI_KRB5)
+    if (strcmp (capability, "gssapi") == 0)
+        return true;
+#endif
+    //  Whatever the application asked for, we don't have
+    return false;
+}
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/zmq_utils.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/zmq_utils.cpp
new file mode 100644
index 00000000..f8a69714
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/zmq_utils.cpp
@@ -0,0 +1,216 @@
+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "platform.hpp"
+
+#include "clock.hpp"
+#include "err.hpp"
+#include "thread.hpp"
+#include <assert.h>
+#include "../include/zmq_utils.h"
+
+#if !defined ZMQ_HAVE_WINDOWS
+#include <unistd.h>
+#else
+#include "windows.hpp"
+#endif
+
+#ifdef HAVE_LIBSODIUM
+#ifdef HAVE_TWEETNACL
+#include "tweetnacl_base.h"
+#else
+#include "sodium.h"
+#endif
+#endif
+
+
+void zmq_sleep (int seconds_)
+{
+#if defined ZMQ_HAVE_WINDOWS
+    Sleep (seconds_ * 1000);
+#else
+    sleep (seconds_);
+#endif
+}
+
+void *zmq_stopwatch_start ()
+{
+    uint64_t *watch = (uint64_t*) malloc (sizeof (uint64_t));
+    alloc_assert (watch);
+    *watch = zmq::clock_t::now_us ();
+    return (void*) watch;
+}
+
+unsigned long zmq_stopwatch_stop (void *watch_)
+{
+    uint64_t end = zmq::clock_t::now_us ();
+    uint64_t start = *(uint64_t*) watch_;
+    free (watch_);
+    return (unsigned long) (end - start);
+}
+
+void *zmq_threadstart(zmq_thread_fn* func, void* arg)
+{
+    zmq::thread_t* thread = new zmq::thread_t;
+    thread->start(func, arg);
+    return thread;
+}
+
+void zmq_threadclose(void* thread)
+{
+    zmq::thread_t* pThread = static_cast<zmq::thread_t*>(thread);
+    pThread->stop();
+    delete pThread;
+}
+
+//  Z85 codec, taken from 0MQ RFC project, implements RFC32 Z85 encoding
+
+//  Maps base 256 to base 85
+static char encoder [85 + 1] = {
+    "0123456789" "abcdefghij" "klmnopqrst" "uvwxyzABCD"
+    "EFGHIJKLMN" "OPQRSTUVWX" "YZ.-:+=^!/" "*?&<>()[]{"
+    "}@%$#"
+};
+
+//  Maps base 85 to base 256
+//  We chop off lower 32 and higher 128 ranges
+static uint8_t decoder [96] = {
+    0x00, 0x44, 0x00, 0x54, 0x53, 0x52, 0x48, 0x00,
+    0x4B, 0x4C, 0x46, 0x41, 0x00, 0x3F, 0x3E, 0x45,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+    0x08, 0x09, 0x40, 0x00, 0x49, 0x42, 0x4A, 0x47,
+    0x51, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A,
+    0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30, 0x31, 0x32,
+    0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A,
+    0x3B, 0x3C, 0x3D, 0x4D, 0x00, 0x4E, 0x43, 0x00,
+    0x00, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10,
+    0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
+    0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20,
+    0x21, 0x22, 0x23, 0x4F, 0x00, 0x50, 0x00, 0x00
+};
+
+//  --------------------------------------------------------------------------
+//  Encode a binary frame as a string; destination string MUST be at least
+//  size * 5 / 4 bytes long plus 1 byte for the null terminator. Returns
+//  dest. Size must be a multiple of 4.
+//  Returns NULL and sets errno = EINVAL for invalid input.
+
+char *zmq_z85_encode (char *dest, const uint8_t *data, size_t size)
+{
+    if (size % 4 != 0) {
+        errno = EINVAL;
+        return NULL;
+    }
+    unsigned int char_nbr = 0;
+    unsigned int byte_nbr = 0;
+    uint32_t value = 0;
+    while (byte_nbr < size) {
+        //  Accumulate value in base 256 (binary)
+        value = value * 256 + data [byte_nbr++];
+        if (byte_nbr % 4 == 0) {
+            //  Output value in base 85
+            unsigned int divisor = 85 * 85 * 85 * 85;
+            while (divisor) {
+                dest [char_nbr++] = encoder [value / divisor % 85];
+                divisor /= 85;
+            }
+            value = 0;
+        }
+    }
+    assert (char_nbr == size * 5 / 4);
+    dest [char_nbr] = 0;
+    return dest;
+}
+
+
+//  --------------------------------------------------------------------------
+//  Decode an encoded string into a binary frame; dest must be at least
+//  strlen (string) * 4 / 5 bytes long. Returns dest. strlen (string)
+//  must be a multiple of 5.
+//  Returns NULL and sets errno = EINVAL for invalid input.
+
+uint8_t *zmq_z85_decode (uint8_t *dest, const char *string)
+{
+    if (strlen (string) % 5 != 0) {
+        errno = EINVAL;
+        return NULL;
+    }
+    unsigned int byte_nbr = 0;
+    unsigned int char_nbr = 0;
+    unsigned int string_len = strlen (string);
+    uint32_t value = 0;
+    while (char_nbr < string_len) {
+        //  Accumulate value in base 85
+        value = value * 85 + decoder [(uint8_t) string [char_nbr++] - 32];
+        if (char_nbr % 5 == 0) {
+            //  Output value in base 256
+            unsigned int divisor = 256 * 256 * 256;
+            while (divisor) {
+                dest [byte_nbr++] = value / divisor % 256;
+                divisor /= 256;
+            }
+            value = 0;
+        }
+    }
+    assert (byte_nbr == strlen (string) * 4 / 5);
+    return dest;
+}
+
+//  --------------------------------------------------------------------------
+//  Generate a public/private keypair with libsodium.
+//  Generated keys will be 40 byte z85-encoded strings.
+//  Returns 0 on success, -1 on failure, setting errno.
+//  Sets errno = ENOTSUP in the absence of libsodium.
+
+int zmq_curve_keypair (char *z85_public_key, char *z85_secret_key)
+{
+#ifdef HAVE_LIBSODIUM
+#   if crypto_box_PUBLICKEYBYTES != 32 \
+    || crypto_box_SECRETKEYBYTES != 32
+#       error "libsodium not built correctly"
+#   endif
+
+    uint8_t public_key [32];
+    uint8_t secret_key [32];
+
+    int rc = crypto_box_keypair (public_key, secret_key);
+    //  Is there a sensible errno to set here?
+    if (rc)
+        return rc;
+
+    zmq_z85_encode (z85_public_key, public_key, 32);
+    zmq_z85_encode (z85_secret_key, secret_key, 32);
+
+    return 0;
+#else // requires libsodium
+    (void) z85_public_key, (void) z85_secret_key;
+    errno = ENOTSUP;
+    return -1;
+#endif
+}