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/*
Copyright (c) 2007-2011 iMatix Corporation
Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser 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
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <new>
#include "zmq_listener.hpp"
#include "transient_session.hpp"
#include "zmq_engine.hpp"
#include "io_thread.hpp"
#include "err.hpp"
zmq::zmq_listener_t::zmq_listener_t (io_thread_t *io_thread_,
socket_base_t *socket_, const options_t &options_) :
own_t (io_thread_, options_),
io_object_t (io_thread_),
socket (socket_)
{
}
zmq::zmq_listener_t::~zmq_listener_t ()
{
}
int zmq::zmq_listener_t::set_address (const char *protocol_, const char *addr_)
{
return tcp_listener.set_address (protocol_, addr_, options.backlog);
}
void zmq::zmq_listener_t::process_plug ()
{
// Start polling for incoming connections.
handle = add_fd (tcp_listener.get_fd ());
set_pollin (handle);
}
void zmq::zmq_listener_t::process_term (int linger_)
{
rm_fd (handle);
own_t::process_term (linger_);
}
void zmq::zmq_listener_t::in_event ()
{
fd_t fd = tcp_listener.accept ();
// If connection was reset by the peer in the meantime, just ignore it.
// TODO: Handle specific errors like ENFILE/EMFILE etc.
if (fd == retired_fd)
return;
// Create the engine object for this connection.
zmq_engine_t *engine = new (std::nothrow) zmq_engine_t (fd, options);
alloc_assert (engine);
// Choose I/O thread to run connecter in. Given that we are already
// running in an I/O thread, there must be at least one available.
io_thread_t *io_thread = choose_io_thread (options.affinity);
zmq_assert (io_thread);
// Create and launch a session object.
transient_session_t *session = new (std::nothrow)
transient_session_t (io_thread, socket, options);
alloc_assert (session);
session->inc_seqnum ();
launch_child (session);
send_attach (session, engine, false);
}
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