Switch stream readers to use asio event loop

server/streamreader/watchdog.hpp

@@ -0,0 +1,57 @@
+/***
+    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 WATCH_DOG_HPP
+#define WATCH_DOG_HPP
+
+#include <boost/asio.hpp>
+#include <memory>
+
+namespace streamreader
+{
+
+class Watchdog;
+
+
+class WatchdogListener
+{
+public:
+    virtual void onTimeout(const Watchdog& watchdog, std::chrono::milliseconds ms) = 0;
+};
+
+
+/// Watchdog
+class Watchdog
+{
+public:
+    Watchdog(boost::asio::io_context& ioc, WatchdogListener* listener = nullptr);
+    virtual ~Watchdog();
+
+    void start(const std::chrono::milliseconds& timeout);
+    void stop();
+    void trigger();
+
+private:
+    boost::asio::steady_timer timer_;
+    WatchdogListener* listener_;
+    std::chrono::milliseconds timeout_ms_;
+};
+
+} // namespace streamreader
+
+#endif