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-/*
- Copyright (c) 2007-2013 Contributors as noted in the AUTHORS file
-
- This file is part of 0MQ.
-
- 0MQ is free software; you can redistribute it and/or modify it under
- the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- 0MQ 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 ();
- 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