mirror of
https://github.com/zeromq/libzmq.git
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132 lines
3.0 KiB
C++
132 lines
3.0 KiB
C++
/*
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Copyright (c) 2009-2011 250bpm s.r.o.
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Copyright (c) 2007-2009 iMatix Corporation
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Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file
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This file is part of 0MQ.
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0MQ is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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0MQ is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "pair.hpp"
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#include "err.hpp"
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#include "pipe.hpp"
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#include "msg.hpp"
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zmq::pair_t::pair_t (class ctx_t *parent_, uint32_t tid_) :
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socket_base_t (parent_, tid_),
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pipe (NULL)
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{
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options.type = ZMQ_PAIR;
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}
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zmq::pair_t::~pair_t ()
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{
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zmq_assert (!pipe);
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}
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void zmq::pair_t::xattach_pipe (pipe_t *pipe_)
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{
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zmq_assert (!pipe);
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pipe = pipe_;
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}
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void zmq::pair_t::xterminated (pipe_t *pipe_)
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{
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zmq_assert (pipe_ == pipe);
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pipe = NULL;
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}
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void zmq::pair_t::xread_activated (pipe_t *pipe_)
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{
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// There's just one pipe. No lists of active and inactive pipes.
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// There's nothing to do here.
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}
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void zmq::pair_t::xwrite_activated (pipe_t *pipe_)
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{
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// There's just one pipe. No lists of active and inactive pipes.
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// There's nothing to do here.
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}
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int zmq::pair_t::xsend (msg_t *msg_, int flags_)
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{
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if (!pipe || !pipe->write (msg_)) {
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errno = EAGAIN;
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return -1;
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}
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if (!(flags_ & ZMQ_SNDMORE))
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pipe->flush ();
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// Detach the original message from the data buffer.
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int rc = msg_->init ();
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errno_assert (rc == 0);
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return 0;
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}
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int zmq::pair_t::xrecv (msg_t *msg_, int flags_)
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{
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// Deallocate old content of the message.
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int rc = msg_->close ();
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errno_assert (rc == 0);
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if (!pipe || !pipe->read (msg_)) {
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// Initialise the output parameter to be a 0-byte message.
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rc = msg_->init ();
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errno_assert (rc == 0);
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errno = EAGAIN;
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return -1;
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}
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return 0;
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}
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bool zmq::pair_t::xhas_in ()
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{
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if (!pipe)
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return false;
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return pipe->check_read ();
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}
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bool zmq::pair_t::xhas_out ()
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{
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if (!pipe)
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return false;
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msg_t msg;
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int rc = msg.init ();
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errno_assert (rc == 0);
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bool result = pipe->check_write (&msg);
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rc = msg.close ();
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errno_assert (rc == 0);
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return result;
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}
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zmq::pair_session_t::pair_session_t (io_thread_t *io_thread_, bool connect_,
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socket_base_t *socket_, const options_t &options_,
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const char *protocol_, const char *address_) :
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session_base_t (io_thread_, connect_, socket_, options_, protocol_,
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address_)
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{
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}
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zmq::pair_session_t::~pair_session_t ()
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{
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}
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