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/*
* Copyright 2003-2018 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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 2 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_INPUT_STREAM_HANDLER_HXX
#define MPD_INPUT_STREAM_HANDLER_HXX
#include "check.h"
/**
* An interface which gets receives events from an #InputStream. Its
* methods will be called from within an arbitrary thread and must not
* block.
*
* A reference to an instance is passed to the #InputStream, but it
* remains owned by the caller.
*/
class InputStreamHandler {
public:
/**
* Called when InputStream::IsReady() becomes true.
*
* Before querying metadata from the #InputStream,
* InputStream::Update() must be called.
*
* Caller locks InputStream::mutex.
*/
virtual void OnInputStreamReady() noexcept = 0;
/**
* Called when InputStream::IsAvailable() becomes true.
*
* Caller locks InputStream::mutex.
*/
virtual void OnInputStreamAvailable() noexcept = 0;
};
#endif
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