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128 lines
4.0 KiB
C++
128 lines
4.0 KiB
C++
/*
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Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
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This file is part of libzmq, the ZeroMQ core engine in C++.
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libzmq 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 (LGPL) as published
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by 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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As a special exception, the Contributors give you permission to link
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this library with independent modules to produce an executable,
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regardless of the license terms of these independent modules, and to
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copy and distribute the resulting executable under terms of your choice,
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provided that you also meet, for each linked independent module, the
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terms and conditions of the license of that module. An independent
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module is a module which is not derived from or based on this library.
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If you modify this library, you must extend this exception to your
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version of the library.
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libzmq is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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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 "precompiled.hpp"
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#include "stream_listener_base.hpp"
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#include "session_base.hpp"
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#include "socket_base.hpp"
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#include "zmtp_engine.hpp"
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#include "raw_engine.hpp"
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#ifndef ZMQ_HAVE_WINDOWS
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#include <unistd.h>
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#else
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#include <winsock2.h>
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#endif
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zmq::stream_listener_base_t::stream_listener_base_t (
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zmq::io_thread_t *io_thread_,
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zmq::socket_base_t *socket_,
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const zmq::options_t &options_) :
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own_t (io_thread_, options_),
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io_object_t (io_thread_),
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_s (retired_fd),
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_handle (static_cast<handle_t> (NULL)),
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_socket (socket_)
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{
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}
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zmq::stream_listener_base_t::~stream_listener_base_t ()
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{
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zmq_assert (_s == retired_fd);
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zmq_assert (!_handle);
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}
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int zmq::stream_listener_base_t::get_local_address (std::string &addr_) const
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{
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addr_ = get_socket_name (_s, socket_end_local);
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return addr_.empty () ? -1 : 0;
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}
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void zmq::stream_listener_base_t::process_plug ()
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{
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// Start polling for incoming connections.
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_handle = add_fd (_s);
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set_pollin (_handle);
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}
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void zmq::stream_listener_base_t::process_term (int linger_)
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{
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rm_fd (_handle);
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_handle = static_cast<handle_t> (NULL);
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close ();
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own_t::process_term (linger_);
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}
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int zmq::stream_listener_base_t::close ()
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{
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// TODO this is identical to stream_connector_base_t::close
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zmq_assert (_s != retired_fd);
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#ifdef ZMQ_HAVE_WINDOWS
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const int rc = closesocket (_s);
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wsa_assert (rc != SOCKET_ERROR);
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#else
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const int rc = ::close (_s);
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errno_assert (rc == 0);
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#endif
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_socket->event_closed (make_unconnected_bind_endpoint_pair (_endpoint), _s);
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_s = retired_fd;
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return 0;
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}
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void zmq::stream_listener_base_t::create_engine (fd_t fd_)
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{
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const endpoint_uri_pair_t endpoint_pair (
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get_socket_name (fd_, socket_end_local),
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get_socket_name (fd_, socket_end_remote), endpoint_type_bind);
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i_engine *engine;
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if (options.raw_socket)
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engine = new (std::nothrow) raw_engine_t (fd_, options, endpoint_pair);
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else
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engine = new (std::nothrow) zmtp_engine_t (fd_, options, endpoint_pair);
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alloc_assert (engine);
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// Choose I/O thread to run connecter in. Given that we are already
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// running in an I/O thread, there must be at least one available.
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io_thread_t *io_thread = choose_io_thread (options.affinity);
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zmq_assert (io_thread);
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// Create and launch a session object.
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session_base_t *session =
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session_base_t::create (io_thread, false, _socket, options, NULL);
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errno_assert (session);
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session->inc_seqnum ();
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launch_child (session);
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send_attach (session, engine, false);
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_socket->event_accepted (endpoint_pair, fd_);
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}
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