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104 lines
3.8 KiB
C++
104 lines
3.8 KiB
C++
/***
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This file is part of snapcast
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Copyright (C) 2014-2020 Johannes Pohl
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef SERVER_HPP
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#define SERVER_HPP
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#include <boost/asio.hpp>
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#include <memory>
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#include <mutex>
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#include <set>
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#include <sstream>
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#include <vector>
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#include "common/queue.h"
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#include "common/sample_format.hpp"
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#include "control_server.hpp"
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#include "jsonrpcpp.hpp"
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#include "message/codec_header.hpp"
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#include "message/message.hpp"
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#include "message/server_settings.hpp"
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#include "server_settings.hpp"
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#include "stream_server.hpp"
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#include "stream_session.hpp"
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#include "streamreader/stream_manager.hpp"
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using namespace streamreader;
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using boost::asio::ip::tcp;
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using acceptor_ptr = std::unique_ptr<tcp::acceptor>;
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using session_ptr = std::shared_ptr<StreamSession>;
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/// Forwars PCM data to the connected clients
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/**
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* Reads PCM data using PipeStream, implements PcmListener to get the (encoded) PCM stream.
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* Accepts and holds client connections (StreamSession)
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* Receives (via the StreamMessageReceiver interface) and answers messages from the clients
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* Forwards PCM data to the clients
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*/
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class Server : public StreamMessageReceiver, public ControlMessageReceiver, public PcmListener
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{
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public:
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Server(boost::asio::io_context& io_context, const ServerSettings& serverSettings);
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virtual ~Server();
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void start();
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void stop();
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private:
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/// Implementation of StreamMessageReceiver
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void onMessageReceived(StreamSession* connection, const msg::BaseMessage& baseMessage, char* buffer) override;
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void onDisconnect(StreamSession* connection) override;
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/// Implementation of ControllMessageReceiver
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std::string onMessageReceived(ControlSession* connection, const std::string& message) override;
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void onNewSession(const std::shared_ptr<ControlSession>& session) override
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{
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std::ignore = session;
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};
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void onNewSession(const std::shared_ptr<StreamSession>& session) override;
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/// Implementation of PcmListener
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void onMetaChanged(const PcmStream* pcmStream) override;
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void onStateChanged(const PcmStream* pcmStream, ReaderState state) override;
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void onChunkRead(const PcmStream* pcmStream, const msg::PcmChunk& chunk) override;
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void onChunkEncoded(const PcmStream* pcmStream, std::shared_ptr<msg::PcmChunk> chunk, double duration) override;
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void onResync(const PcmStream* pcmStream, double ms) override;
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private:
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void processRequest(const jsonrpcpp::request_ptr request, jsonrpcpp::entity_ptr& response, jsonrpcpp::notification_ptr& notification) const;
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/// Save the server state deferred to prevent blocking and lower disk io
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/// @param deferred the delay after the last call to saveConfig
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void saveConfig(const std::chrono::milliseconds& deferred = std::chrono::seconds(2));
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mutable std::recursive_mutex sessionsMutex_;
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mutable std::recursive_mutex clientMutex_;
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boost::asio::io_context& io_context_;
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boost::asio::steady_timer config_timer_;
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ServerSettings settings_;
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Queue<std::shared_ptr<msg::BaseMessage>> messages_;
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std::unique_ptr<ControlServer> controlServer_;
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std::unique_ptr<StreamServer> streamServer_;
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std::unique_ptr<StreamManager> streamManager_;
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};
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#endif
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