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/*
Copyright (c) 2007-2009 FastMQ Inc.
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the Lesser GNU 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
Lesser GNU General Public License for more details.
You should have received a copy of the Lesser GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../include/zmq.h"
#include "dummy_aggregator.hpp"
#include "err.hpp"
#include "pipe_reader.hpp"
#include "session.hpp"
// Swaps pipes at specified indices.
#define swap_pipes(i1_, i2_) \
std::swap (pipes [i1_], pipes [i2_]);\
pipes [i1_]->set_index (i1_);\
pipes [i2_]->set_index (i2_);
zmq::dummy_aggregator_t::dummy_aggregator_t () :
session (NULL),
pipe (NULL),
active (false)
{
}
void zmq::dummy_aggregator_t::set_session (session_t *session_)
{
zmq_assert (!session);
session = session_;
}
void zmq::dummy_aggregator_t::shutdown ()
{
// No need to deallocate the pipe here. It'll be deallocated during the
// shutdown of the dispatcher.
delete this;
}
void zmq::dummy_aggregator_t::terminate ()
{
if (pipe)
pipe->terminate ();
delete this;
}
zmq::dummy_aggregator_t::~dummy_aggregator_t ()
{
}
void zmq::dummy_aggregator_t::attach_pipe (pipe_reader_t *pipe_)
{
zmq_assert (!pipe);
pipe = pipe_;
active = true;
// Associate new pipe with the mux object.
pipe_->set_mux (this);
session->revive ();
}
void zmq::dummy_aggregator_t::detach_pipe (pipe_reader_t *pipe_)
{
zmq_assert (pipe == pipe_);
deactivate (pipe_);
pipe = NULL;
}
bool zmq::dummy_aggregator_t::empty ()
{
return pipe == NULL;
}
bool zmq::dummy_aggregator_t::recv (zmq_msg *msg_)
{
// Deallocate old content of the message.
zmq_msg_close (msg_);
// Try to read from the pipe.
if (pipe && pipe->read (msg_))
return true;
// No message is available. Initialise the output parameter
// to be a 0-byte message.
zmq_msg_init (msg_);
return false;
}
void zmq::dummy_aggregator_t::deactivate (pipe_reader_t *pipe_)
{
active = false;
}
void zmq::dummy_aggregator_t::reactivate (pipe_reader_t *pipe_)
{
active = true;
}
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