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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 "safe_object.hpp"
zmq::safe_object_t::safe_object_t (class context_t *context_,
int thread_slot_) :
object_t (context_, thread_slot_),
processed_seqnum (0),
terminating (false)
{
}
zmq::safe_object_t::safe_object_t (object_t *parent_) :
object_t (parent_),
processed_seqnum (0),
terminating (false)
{
}
void zmq::safe_object_t::inc_seqnum ()
{
// This function is called from the sender thread to ensure that this
// object will still exist when the command sent to it arrives in the
// destination thread.
sent_seqnum.add (1);
}
void zmq::safe_object_t::process_command (struct command_t &cmd_)
{
object_t::process_command (cmd_);
// Adjust sequence number of the last processed command.
processed_seqnum++;
// If we are already in the termination phase and all commands sent to
// this object are processed, it's safe to deallocate it.
if (terminating && sent_seqnum.get () == processed_seqnum)
delete this;
}
void zmq::safe_object_t::terminate ()
{
// Wait till all commands sent to this session are processed.
terminating = true;
// If there's no pending command we can deallocate the session
// straight saway.
if (sent_seqnum.get () == processed_seqnum)
delete this;
}
bool zmq::safe_object_t::is_terminating ()
{
return terminating;
}
zmq::safe_object_t::~safe_object_t ()
{
}
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