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https://github.com/zeromq/libzmq.git
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129 lines
3.2 KiB
C++
129 lines
3.2 KiB
C++
/*
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Copyright (c) 2009-2011 250bpm s.r.o.
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Copyright (c) 2011 VMware, Inc.
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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 "dealer.hpp"
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#include "err.hpp"
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#include "msg.hpp"
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zmq::dealer_t::dealer_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
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socket_base_t (parent_, tid_, sid_),
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prefetched (false)
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{
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options.type = ZMQ_DEALER;
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// TODO: Uncomment the following line when DEALER will become true DEALER
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// rather than generic dealer socket.
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// If the socket is closing we can drop all the outbound requests. There'll
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// be noone to receive the replies anyway.
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// options.delay_on_close = false;
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options.send_identity = true;
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options.recv_identity = true;
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prefetched_msg.init ();
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}
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zmq::dealer_t::~dealer_t ()
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{
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prefetched_msg.close ();
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}
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void zmq::dealer_t::xattach_pipe (pipe_t *pipe_, bool icanhasall_)
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{
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zmq_assert (pipe_);
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fq.attach (pipe_);
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lb.attach (pipe_);
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}
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int zmq::dealer_t::xsend (msg_t *msg_, int flags_)
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{
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return lb.send (msg_, flags_);
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}
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int zmq::dealer_t::xrecv (msg_t *msg_, int flags_)
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{
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// If there is a prefetched message, return it.
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if (prefetched) {
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int rc = msg_->move (prefetched_msg);
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errno_assert (rc == 0);
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prefetched = false;
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return 0;
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}
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// DEALER socket doesn't use identities. We can safely drop it and
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while (true) {
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int rc = fq.recv (msg_);
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if (rc != 0)
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return rc;
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if (likely (!(msg_->flags () & msg_t::identity)))
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break;
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}
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return 0;
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}
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bool zmq::dealer_t::xhas_in ()
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{
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// We may already have a message pre-fetched.
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if (prefetched)
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return true;
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// Try to read the next message to the pre-fetch buffer.
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int rc = dealer_t::xrecv (&prefetched_msg, ZMQ_DONTWAIT);
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if (rc != 0 && errno == EAGAIN)
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return false;
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zmq_assert (rc == 0);
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prefetched = true;
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return true;
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}
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bool zmq::dealer_t::xhas_out ()
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{
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return lb.has_out ();
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}
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void zmq::dealer_t::xread_activated (pipe_t *pipe_)
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{
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fq.activated (pipe_);
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}
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void zmq::dealer_t::xwrite_activated (pipe_t *pipe_)
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{
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lb.activated (pipe_);
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}
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void zmq::dealer_t::xterminated (pipe_t *pipe_)
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{
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fq.terminated (pipe_);
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lb.terminated (pipe_);
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}
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zmq::dealer_session_t::dealer_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 address_t *addr_) :
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session_base_t (io_thread_, connect_, socket_, options_, addr_)
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{
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}
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zmq::dealer_session_t::~dealer_session_t ()
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{
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}
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