/*** This file is part of snapcast Copyright (C) 2014-2020 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 "common/queue.h" #include "message/message.hpp" #include "server_settings.hpp" #include <atomic> #include <boost/asio.hpp> #include <condition_variable> #include <memory> #include <set> #include <string> using boost::asio::ip::tcp; class ControlSession; class StreamSession; /// Interface: callback for a received message. class ControlMessageReceiver { public: // TODO: rename, error handling virtual std::string onMessageReceived(ControlSession* session, const std::string& message) = 0; virtual void onNewSession(const std::shared_ptr<ControlSession>& session) = 0; virtual void onNewSession(const std::shared_ptr<StreamSession>& session) = 0; }; /// Endpoint for a connected control client. /** * Endpoint for a connected control client. * Messages are sent to the client with the "send" method. * Received messages from the client are passed to the ControlMessageReceiver callback */ class ControlSession : public std::enable_shared_from_this<ControlSession> { public: /// ctor. Received message from the client are passed to ControlMessageReceiver ControlSession(ControlMessageReceiver* receiver) : message_receiver_(receiver) { } virtual ~ControlSession() = default; virtual void start() = 0; virtual void stop() = 0; /// Sends a message to the client (asynchronous) virtual void sendAsync(const std::string& message) = 0; protected: ControlMessageReceiver* message_receiver_; }; #endif