Switch stream readers to use asio event loop

server/streamreader/posix_stream.hpp

@@ -0,0 +1,52 @@
+/***
+    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 POSIX_STREAM_HPP
+#define POSIX_STREAM_HPP
+
+#include "asio_stream.hpp"
+
+namespace streamreader
+{
+
+using boost::asio::posix::stream_descriptor;
+
+
+/// Reads and decodes PCM data from a file descriptor
+/**
+ * Reads PCM from a file descriptor and passes the data to an encoder.
+ * Implements EncoderListener to get the encoded data.
+ * Data is passed to the PcmListener
+ */
+class PosixStream : public AsioStream<stream_descriptor>
+{
+public:
+    /// ctor. Encoded PCM data is passed to the PipeListener
+    PosixStream(PcmListener* pcmListener, boost::asio::io_context& ioc, const StreamUri& uri);
+
+protected:
+    void connect() override;
+    void do_disconnect() override;
+    void do_read() override;
+    std::string lastException_;
+    size_t dryout_ms_;
+};
+
+} // namespace streamreader
+
+#endif