1 files changed, 367 insertions, 0 deletions
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;
+}