ce49d99c2f
Since we switched from autotools to Meson in commit
94592c1406, we don't need to include
`config.h` early to properly enable large file support. Meson passes
the required macros on the compiler command line instead of defining
them in `config.h`.
This means we can include `config.h` at any time, whenever we want to
check its macros, and there are no ordering constraints.
71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
/*
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* Copyright 2003-2018 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_ALSA_NON_BLOCK_HXX
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#define MPD_ALSA_NON_BLOCK_HXX
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#include "util/ReusableArray.hxx"
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#include <alsa/asoundlib.h>
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#include <chrono>
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class MultiSocketMonitor;
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/**
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* Helper class for #MultiSocketMonitor's virtual methods which
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* manages the file descriptors for a #snd_pcm_t.
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*/
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class AlsaNonBlockPcm {
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ReusableArray<pollfd> pfd_buffer;
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public:
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/**
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* Throws on error.
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*/
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std::chrono::steady_clock::duration PrepareSockets(MultiSocketMonitor &m,
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snd_pcm_t *pcm);
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/**
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* Wrapper for snd_pcm_poll_descriptors_revents(), to be
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* called from MultiSocketMonitor::DispatchSockets().
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*/
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void DispatchSockets(MultiSocketMonitor &m, snd_pcm_t *pcm) noexcept;
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};
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/**
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* Helper class for #MultiSocketMonitor's virtual methods which
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* manages the file descriptors for a #snd_mixer_t.
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*/
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class AlsaNonBlockMixer {
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ReusableArray<pollfd> pfd_buffer;
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public:
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std::chrono::steady_clock::duration PrepareSockets(MultiSocketMonitor &m,
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snd_mixer_t *mixer) noexcept;
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/**
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* Wrapper for snd_mixer_poll_descriptors_revents(), to be
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* called from MultiSocketMonitor::DispatchSockets().
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*/
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void DispatchSockets(MultiSocketMonitor &m, snd_mixer_t *mixer) noexcept;
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};
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#endif
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