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120 lines
2.9 KiB
C++
120 lines
2.9 KiB
C++
/***
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This file is part of snapcast
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Copyright (C) 2015 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 STREAM_SESSION_H
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#define STREAM_SESSION_H
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#include <string>
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#include <thread>
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#include <atomic>
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#include <mutex>
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#include <memory>
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#include <asio.hpp>
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#include <condition_variable>
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#include <set>
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#include "message/message.h"
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#include "common/queue.h"
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using asio::ip::tcp;
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class StreamSession;
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/// Interface: callback for a received message.
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class MessageReceiver
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{
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public:
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virtual void onMessageReceived(StreamSession* connection, const msg::BaseMessage& baseMessage, char* buffer) = 0;
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virtual void onDisconnect(StreamSession* connection) = 0;
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};
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/// Endpoint for a connected client.
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/**
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* Endpoint for a connected client.
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* Messages are sent to the client with the "send" method.
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* Received messages from the client are passed to the MessageReceiver callback
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*/
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class StreamSession
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{
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public:
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/// ctor. Received message from the client are passed to MessageReceiver
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StreamSession(MessageReceiver* receiver, std::shared_ptr<tcp::socket> socket);
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~StreamSession();
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void start();
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void stop();
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/// Sends a message to the client (synchronous)
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bool send(const msg::BaseMessage* message) const;
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/// Sends a message to the client (asynchronous)
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void add(const std::shared_ptr<const msg::BaseMessage>& message);
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bool active() const
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{
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return active_;
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}
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/// Client subscribed for the PCM stream, by sending the "startStream" command
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/// TODO: Currently there is only one stream ("zone")
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void setStreamActive(bool active)
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{
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streamActive_ = active;
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}
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/// Max playout latency. No need to send PCM data that is older than bufferMs
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void setBufferMs(size_t bufferMs)
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{
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bufferMs_ = bufferMs;
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}
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std::string macAddress;
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std::string getIP()
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{
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return socket_->remote_endpoint().address().to_string();
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}
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protected:
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void socketRead(void* _to, size_t _bytes);
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void getNextMessage();
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void reader();
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void writer();
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void setActive(bool active);
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std::atomic<bool> active_;
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std::atomic<bool> streamActive_;
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mutable std::mutex mutex_;
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std::thread* readerThread_;
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std::thread* writerThread_;
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std::shared_ptr<tcp::socket> socket_;
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MessageReceiver* messageReceiver_;
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Queue<std::shared_ptr<const msg::BaseMessage>> messages_;
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size_t bufferMs_;
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};
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#endif
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