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117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
/*
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Copyright (c) 2007-2010 iMatix Corporation
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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 "connect_session.hpp"
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#include "zmq_connecter.hpp"
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#include "pgm_sender.hpp"
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#include "pgm_receiver.hpp"
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zmq::connect_session_t::connect_session_t (class io_thread_t *io_thread_,
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class socket_base_t *socket_, const options_t &options_,
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const char *protocol_, const char *address_) :
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session_t (io_thread_, socket_, options_),
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protocol (protocol_),
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address (address_)
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{
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}
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zmq::connect_session_t::~connect_session_t ()
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{
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}
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void zmq::connect_session_t::process_plug ()
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{
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// Start connection process immediately.
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start_connecting ();
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}
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void zmq::connect_session_t::start_connecting ()
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{
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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 the connecter object.
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// Both TCP and IPC transports are using the same infrastructure.
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if (protocol == "tcp" || protocol == "ipc") {
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zmq_connecter_t *connecter = new (std::nothrow) zmq_connecter_t (
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io_thread, this, options, protocol.c_str (), address.c_str ());
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zmq_assert (connecter);
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launch_child (connecter);
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return;
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}
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#if defined ZMQ_HAVE_OPENPGM
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// Both PGM and EPGM transports are using the same infrastructure.
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if (protocol == "pgm" || protocol == "epgm") {
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// For EPGM transport with UDP encapsulation of PGM is used.
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bool udp_encapsulation = (protocol == "epgm");
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// At this point we'll create message pipes to the session straight
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// away. There's no point in delaying it as no concept of 'connect'
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// exists with PGM anyway.
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if (options.requires_out) {
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// PGM sender.
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pgm_sender_t *pgm_sender = new (std::nothrow) pgm_sender_t (
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io_thread, options);
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zmq_assert (pgm_sender);
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int rc = pgm_sender->init (udp_encapsulation, address.c_str ());
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zmq_assert (rc == 0);
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send_attach (this, pgm_sender, blob_t ());
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}
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else if (options.requires_in) {
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// PGM receiver.
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pgm_receiver_t *pgm_receiver = new (std::nothrow) pgm_receiver_t (
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io_thread, options);
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zmq_assert (pgm_receiver);
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int rc = pgm_receiver->init (udp_encapsulation, address.c_str ());
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zmq_assert (rc == 0);
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send_attach (this, pgm_receiver, blob_t ());
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}
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else
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zmq_assert (false);
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return;
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}
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#endif
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zmq_assert (false);
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}
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void zmq::connect_session_t::detached ()
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{
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// Clean up the mess left over by the failed connection.
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clean_pipes ();
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// Reconnect.
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start_connecting ();
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}
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