mirror of
https://github.com/zeromq/libzmq.git
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136 lines
2.9 KiB
C++
136 lines
2.9 KiB
C++
/*
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Copyright (c) 2007-2010 iMatix Corporation
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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 Lesser GNU 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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Lesser GNU General Public License for more details.
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You should have received a copy of the Lesser GNU 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 "../bindings/c/zmq.h"
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#include "p2p.hpp"
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#include "err.hpp"
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#include "pipe.hpp"
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zmq::p2p_t::p2p_t (class app_thread_t *parent_) :
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socket_base_t (parent_),
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inpipe (NULL),
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outpipe (NULL),
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alive (true)
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{
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options.requires_in = true;
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options.requires_out = true;
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}
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zmq::p2p_t::~p2p_t ()
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{
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if (inpipe)
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inpipe->term ();
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if (outpipe)
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outpipe->term ();
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}
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void zmq::p2p_t::xattach_pipes (class reader_t *inpipe_,
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class writer_t *outpipe_, const blob_t &peer_identity_)
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{
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zmq_assert (!inpipe && !outpipe);
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inpipe = inpipe_;
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outpipe = outpipe_;
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}
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void zmq::p2p_t::xdetach_inpipe (class reader_t *pipe_)
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{
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zmq_assert (pipe_ == inpipe);
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inpipe = NULL;
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}
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void zmq::p2p_t::xdetach_outpipe (class writer_t *pipe_)
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{
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zmq_assert (pipe_ == outpipe);
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outpipe = NULL;
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}
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void zmq::p2p_t::xkill (class reader_t *pipe_)
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{
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zmq_assert (alive);
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alive = false;
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}
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void zmq::p2p_t::xrevive (class reader_t *pipe_)
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{
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zmq_assert (!alive);
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alive = true;
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}
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int zmq::p2p_t::xsetsockopt (int option_, const void *optval_,
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size_t optvallen_)
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{
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errno = EINVAL;
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return -1;
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}
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int zmq::p2p_t::xsend (zmq_msg_t *msg_, int flags_)
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{
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if (!outpipe) {
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errno = EAGAIN;
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return -1;
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}
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// TODO: Implement this once queue limits are in-place.
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zmq_assert (outpipe->check_write (zmq_msg_size (msg_)));
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outpipe->write (msg_);
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if (!(flags_ & ZMQ_NOFLUSH))
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outpipe->flush ();
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// Detach the original message from the data buffer.
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int rc = zmq_msg_init (msg_);
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zmq_assert (rc == 0);
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return 0;
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}
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int zmq::p2p_t::xflush ()
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{
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if (outpipe)
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outpipe->flush ();
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return 0;
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}
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int zmq::p2p_t::xrecv (zmq_msg_t *msg_, int flags_)
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{
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// Deallocate old content of the message.
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zmq_msg_close (msg_);
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if (!alive || !inpipe || !inpipe->read (msg_)) {
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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::p2p_t::xhas_in ()
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{
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if (alive && inpipe && inpipe->check_read ())
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return true;
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return false;
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}
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bool zmq::p2p_t::xhas_out ()
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{
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// TODO: Implement this once queue limits are in-place.
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return true;
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}
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