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Diffstat (limited to 'external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/fq.hpp')
-rw-r--r-- | external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/fq.hpp | 92 |
1 files changed, 92 insertions, 0 deletions
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 |