basic telnet like control server

server/controlSession.h

@@ -0,0 +1,94 @@
+/***
+    This file is part of snapcast
+    Copyright (C) 2015  Johannes Pohl
+
+    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
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program 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
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#ifndef CONTROL_SESSION_H
+#define CONTROL_SESSION_H
+
+#include <string>
+#include <thread>
+#include <atomic>
+#include <mutex>
+#include <memory>
+#include <boost/asio.hpp>
+#include <condition_variable>
+#include <set>
+#include "message/message.h"
+#include "common/queue.h"
+
+
+using boost::asio::ip::tcp;
+
+
+class ControlSession;
+
+
+/// Interface: callback for a received message.
+class ControlMessageReceiver
+{
+public:
+	virtual void onMessageReceived(ControlSession* connection, const std::string& message) = 0;
+};
+
+
+/// Endpoint for a connected client.
+/**
+ * Endpoint for a connected client.
+ * Messages are sent to the client with the "send" method.
+ * Received messages from the client are passed to the MessageReceiver callback
+ */
+class ControlSession
+{
+public:
+	/// ctor. Received message from the client are passed to MessageReceiver
+	ControlSession(ControlMessageReceiver* receiver, std::shared_ptr<tcp::socket> socket);
+	~ControlSession();
+	void start();
+	void stop();
+
+	/// Sends a message to the client (synchronous)
+	bool send(const std::string& message) const;
+
+	/// Sends a message to the client (asynchronous)
+	void add(const std::string& message);
+
+	bool active() const
+	{
+		return active_;
+	}
+
+protected:
+	void reader();
+	void writer();
+
+	std::atomic<bool> active_;
+	mutable std::mutex mutex_;
+	std::thread* readerThread_;
+	std::thread* writerThread_;
+	std::shared_ptr<tcp::socket> socket_;
+	ControlMessageReceiver* messageReceiver_;
+	Queue<std::string> messages_;
+};
+
+
+
+
+#endif
+
+
+
+