Logging improvements to allow prettier displays in the server GUI.
[dcpomatic.git] / src / lib / server_finder.h
index 01e26f7dfee1aa3a7c432d8ba9c68c9d4e777057..8aa07c0696145918cc64f5a8cc09fb35f98cbbb3 100644 (file)
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2013 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
 
 */
 
+/** @file  src/lib/server_finder.h
+ *  @brief ServerFinder class.
+ */
+
+#include "signaller.h"
+#include "server_description.h"
+#include "config.h"
+#include "exception_store.h"
 #include <boost/signals2.hpp>
-#include "server.h"
+#include <boost/thread/condition.hpp>
+
+class Socket;
 
-class ServerFinder
+class ServerFinder : public Signaller, public ExceptionStore
 {
 public:
-       void connect (boost::function<void (ServerDescription)>);
-
        static ServerFinder* instance ();
+       static void drop ();
 
        void disable () {
                _disabled = true;
        }
 
+       bool disabled () const {
+               return _disabled;
+       }
+
+       std::list<ServerDescription> servers () const;
+
+       /** Emitted whenever the list of servers changes */
+       boost::signals2::signal<void ()> ServersListChanged;
+
 private:
        ServerFinder ();
+       ~ServerFinder ();
+
+       void start ();
 
-       void broadcast_thread ();
+       void search_thread ();
        void listen_thread ();
 
        bool server_found (std::string) const;
+       void start_accept ();
+       void handle_accept (boost::system::error_code ec, boost::shared_ptr<Socket> socket);
 
-       boost::signals2::signal<void (ServerDescription)> ServerFound;
+       void config_changed (Config::Property what);
+       void search_now ();
 
        bool _disabled;
-       
-       /** Thread to periodically issue broadcasts to find encoding servers */
-       boost::thread* _broadcast_thread;
+
+       /** Thread to periodically issue broadcasts and requests to find encoding servers */
+       boost::thread* _search_thread;
        /** Thread to listen to the responses from servers */
        boost::thread* _listen_thread;
 
        std::list<ServerDescription> _servers;
-       mutable boost::mutex _mutex;
+       mutable boost::mutex _servers_mutex;
+
+       boost::asio::io_service _listen_io_service;
+       boost::shared_ptr<boost::asio::ip::tcp::acceptor> _listen_acceptor;
+       bool _stop;
+
+       boost::condition _search_condition;
+       boost::mutex _search_condition_mutex;
 
        static ServerFinder* _instance;
 };