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112 lines
2.5 KiB
C++
112 lines
2.5 KiB
C++
/*
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Copyright (c) 2007-2009 FastMQ Inc.
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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 "../include/zmq.h"
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#include "dummy_aggregator.hpp"
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#include "err.hpp"
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#include "pipe_reader.hpp"
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#include "session.hpp"
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// Swaps pipes at specified indices.
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#define swap_pipes(i1_, i2_) \
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std::swap (pipes [i1_], pipes [i2_]);\
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pipes [i1_]->set_index (i1_);\
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pipes [i2_]->set_index (i2_);
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zmq::dummy_aggregator_t::dummy_aggregator_t () :
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session (NULL),
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pipe (NULL),
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active (false)
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{
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}
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void zmq::dummy_aggregator_t::set_session (session_t *session_)
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{
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zmq_assert (!session);
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session = session_;
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}
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void zmq::dummy_aggregator_t::shutdown ()
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{
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// No need to deallocate the pipe here. It'll be deallocated during the
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// shutdown of the dispatcher.
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delete this;
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}
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void zmq::dummy_aggregator_t::terminate ()
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{
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if (pipe)
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pipe->terminate ();
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delete this;
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}
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zmq::dummy_aggregator_t::~dummy_aggregator_t ()
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{
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}
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void zmq::dummy_aggregator_t::attach_pipe (pipe_reader_t *pipe_)
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{
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zmq_assert (!pipe);
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pipe = pipe_;
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active = true;
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// Associate new pipe with the mux object.
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pipe_->set_mux (this);
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session->revive ();
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}
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void zmq::dummy_aggregator_t::detach_pipe (pipe_reader_t *pipe_)
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{
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zmq_assert (pipe == pipe_);
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deactivate (pipe_);
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pipe = NULL;
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}
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bool zmq::dummy_aggregator_t::empty ()
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{
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return pipe == NULL;
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}
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bool zmq::dummy_aggregator_t::recv (zmq_msg *msg_)
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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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// Try to read from the pipe.
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if (pipe && pipe->read (msg_))
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return true;
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// No message is available. Initialise the output parameter
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// to be a 0-byte message.
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zmq_msg_init (msg_);
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return false;
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}
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void zmq::dummy_aggregator_t::deactivate (pipe_reader_t *pipe_)
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{
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active = false;
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}
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void zmq::dummy_aggregator_t::reactivate (pipe_reader_t *pipe_)
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{
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active = true;
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}
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