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-rw-r--r--src/zmq_connecter.cpp136
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diff --git a/src/zmq_connecter.cpp b/src/zmq_connecter.cpp
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+/*
+ Copyright (c) 2007-2010 iMatix Corporation
+
+ 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 <new>
+
+#include "zmq_connecter.hpp"
+#include "zmq_engine.hpp"
+#include "zmq_init.hpp"
+#include "io_thread.hpp"
+#include "err.hpp"
+
+zmq::zmq_connecter_t::zmq_connecter_t (io_thread_t *parent_,
+ socket_base_t *owner_, const options_t &options_,
+ uint64_t session_ordinal_, bool wait_) :
+ owned_t (parent_, owner_),
+ io_object_t (parent_),
+ handle_valid (false),
+ wait (wait_),
+ session_ordinal (session_ordinal_),
+ options (options_)
+{
+}
+
+zmq::zmq_connecter_t::~zmq_connecter_t ()
+{
+}
+
+int zmq::zmq_connecter_t::set_address (const char *protocol_,
+ const char *address_)
+{
+ int rc = tcp_connecter.set_address (protocol_, address_);
+ if (rc != 0)
+ return rc;
+ protocol = protocol_;
+ address = address_;
+ return 0;
+}
+
+void zmq::zmq_connecter_t::process_plug ()
+{
+ if (wait)
+ add_timer ();
+ else
+ start_connecting ();
+}
+
+void zmq::zmq_connecter_t::process_unplug ()
+{
+ if (wait)
+ cancel_timer ();
+ if (handle_valid)
+ rm_fd (handle);
+}
+
+void zmq::zmq_connecter_t::in_event ()
+{
+ // We are not polling for incomming data, so we are actually called
+ // because of error here. However, we can get error on out event as well
+ // on some platforms, so we'll simply handle both events in the same way.
+ out_event ();
+}
+
+void zmq::zmq_connecter_t::out_event ()
+{
+ fd_t fd = tcp_connecter.connect ();
+ rm_fd (handle);
+ handle_valid = false;
+
+ // Handle the error condition by attempt to reconnect.
+ if (fd == retired_fd) {
+ tcp_connecter.close ();
+ wait = true;
+ add_timer ();
+ return;
+ }
+
+ // Create an init object.
+ zmq_init_t *init = new (std::nothrow) zmq_init_t (
+ choose_io_thread (options.affinity), owner,
+ fd, options, true, protocol.c_str (), address.c_str (),
+ session_ordinal);
+ zmq_assert (init);
+ send_plug (init);
+ send_own (owner, init);
+
+ // Ask owner socket to shut the connecter down.
+ term ();
+}
+
+void zmq::zmq_connecter_t::timer_event ()
+{
+ wait = false;
+ start_connecting ();
+}
+
+void zmq::zmq_connecter_t::start_connecting ()
+{
+ // Open the connecting socket.
+ int rc = tcp_connecter.open ();
+
+ // Connect may succeed in synchronous manner.
+ if (rc == 0) {
+ handle = add_fd (tcp_connecter.get_fd ());
+ handle_valid = true;
+ out_event ();
+ return;
+ }
+
+ // Connection establishment may be dealyed. Poll for its completion.
+ else if (rc == -1 && errno == EAGAIN) {
+ handle = add_fd (tcp_connecter.get_fd ());
+ handle_valid = true;
+ set_pollout (handle);
+ return;
+ }
+
+ // Handle any other error condition by eventual reconnect.
+ wait = true;
+ add_timer ();
+}