/*
- Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
*/
-#include <libcxml/cxml.h>
-#include <dcp/raw_convert.h>
#include "server_finder.h"
#include "exceptions.h"
#include "util.h"
#include "config.h"
#include "cross.h"
-#include "ui_signaller.h"
+#include "dcpomatic_socket.h"
+#include "raw_convert.h"
+#include <libcxml/cxml.h>
+#include <boost/lambda/lambda.hpp>
+
+#include "i18n.h"
using std::string;
-using std::stringstream;
using std::list;
using std::vector;
using std::cout;
using boost::shared_ptr;
using boost::scoped_array;
-using dcp::raw_convert;
+using boost::weak_ptr;
ServerFinder* ServerFinder::_instance = 0;
: _disabled (false)
, _broadcast_thread (0)
, _listen_thread (0)
+ , _stop (false)
{
_broadcast_thread = new boost::thread (boost::bind (&ServerFinder::broadcast_thread, this));
_listen_thread = new boost::thread (boost::bind (&ServerFinder::listen_thread, this));
}
+ServerFinder::~ServerFinder ()
+{
+ _stop = true;
+
+ _broadcast_thread->interrupt ();
+ _broadcast_thread->join ();
+
+ _listen_io_service.stop ();
+ _listen_thread->join ();
+}
+
void
ServerFinder::broadcast_thread ()
try
string const data = DCPOMATIC_HELLO;
- while (true) {
+ while (!_stop) {
if (Config::instance()->use_any_servers ()) {
/* Broadcast to look for servers */
try {
}
}
-
- dcpomatic_sleep (10);
+
+ try {
+ boost::thread::sleep (boost::get_system_time() + boost::posix_time::seconds (10));
+ } catch (boost::thread_interrupted& e) {
+ return;
+ }
}
}
catch (...)
void
ServerFinder::listen_thread ()
-try
-{
- while (true) {
- shared_ptr<Socket> sock (new Socket (60));
-
- try {
- sock->accept (Config::instance()->server_port_base() + 1);
- } catch (std::exception& e) {
- continue;
- }
+try {
+ using namespace boost::asio::ip;
- uint32_t length = sock->read_uint32 ();
- scoped_array<char> buffer (new char[length]);
- sock->read (reinterpret_cast<uint8_t*> (buffer.get()), length);
-
- stringstream s (buffer.get());
- shared_ptr<cxml::Document> xml (new cxml::Document ("ServerAvailable"));
- xml->read_stream (s);
-
- string const ip = sock->socket().remote_endpoint().address().to_string ();
- if (!server_found (ip)) {
- ServerDescription sd (ip, xml->number_child<int> ("Threads"));
- _servers.push_back (sd);
- ui_signaller->emit (boost::bind (boost::ref (ServerFound), sd));
- }
+ try {
+ _listen_acceptor.reset (new tcp::acceptor (_listen_io_service, tcp::endpoint (tcp::v4(), Config::instance()->server_port_base() + 1)));
+ } catch (...) {
+ boost::throw_exception (NetworkError (_("Could not listen for remote encode servers. Perhaps another instance of DCP-o-matic is running.")));
}
+
+ start_accept ();
+ _listen_io_service.run ();
}
catch (...)
{
store_current ();
}
+void
+ServerFinder::start_accept ()
+{
+ shared_ptr<Socket> socket (new Socket ());
+ _listen_acceptor->async_accept (
+ socket->socket(),
+ boost::bind (&ServerFinder::handle_accept, this, boost::asio::placeholders::error, socket)
+ );
+}
+
+void
+ServerFinder::handle_accept (boost::system::error_code ec, shared_ptr<Socket> socket)
+{
+ if (ec) {
+ start_accept ();
+ return;
+ }
+
+ uint32_t length;
+ socket->read (reinterpret_cast<uint8_t*> (&length), sizeof (uint32_t));
+ length = ntohl (length);
+
+ scoped_array<char> buffer (new char[length]);
+ socket->read (reinterpret_cast<uint8_t*> (buffer.get()), length);
+
+ string s (buffer.get());
+ shared_ptr<cxml::Document> xml (new cxml::Document ("ServerAvailable"));
+ xml->read_string (s);
+
+ string const ip = socket->socket().remote_endpoint().address().to_string ();
+ if (!server_found (ip) && xml->optional_number_child<int>("Version").get_value_or (0) == SERVER_LINK_VERSION) {
+ ServerDescription sd (ip, xml->number_child<int> ("Threads"));
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ _servers.push_back (sd);
+ }
+ emit (boost::bind (boost::ref (ServerFound), sd));
+ }
+
+ start_accept ();
+}
+
bool
ServerFinder::server_found (string ip) const
{
return i != _servers.end ();
}
-void
+boost::signals2::connection
ServerFinder::connect (boost::function<void (ServerDescription)> fn)
{
- if (_disabled) {
- return;
- }
-
boost::mutex::scoped_lock lm (_mutex);
/* Emit the current list of servers */
fn (*i);
}
- ServerFound.connect (fn);
+ return ServerFound.connect (fn);
}
ServerFinder*
return _instance;
}
-
-
+void
+ServerFinder::drop ()
+{
+ delete _instance;
+ _instance = 0;
+}