52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/*
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* Copyright 2003-2021 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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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 2 of the License, or
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* (at your option) any later version.
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*
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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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_INPUT_STREAM_HANDLER_HXX
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#define MPD_INPUT_STREAM_HANDLER_HXX
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/**
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* An interface which gets receives events from an #InputStream. Its
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* methods will be called from within an arbitrary thread and must not
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* block.
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*
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* A reference to an instance is passed to the #InputStream, but it
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* remains owned by the caller.
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*/
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class InputStreamHandler {
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public:
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/**
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* Called when InputStream::IsReady() becomes true.
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*
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* Before querying metadata from the #InputStream,
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* InputStream::Update() must be called.
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*
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* Caller locks InputStream::mutex.
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*/
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virtual void OnInputStreamReady() noexcept = 0;
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/**
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* Called when InputStream::IsAvailable() becomes true.
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*
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* Caller locks InputStream::mutex.
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*/
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virtual void OnInputStreamAvailable() noexcept = 0;
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};
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#endif
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