mpd/src/archive/ArchiveList.cxx

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/*
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* Copyright 2003-2020 The Music Player Daemon Project
* http://www.musicpd.org
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*
* 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.
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*/
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#include "ArchiveList.hxx"
#include "ArchivePlugin.hxx"
#include "archive/Features.h"
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#include "util/StringUtil.hxx"
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#include "plugins/Bzip2ArchivePlugin.hxx"
#include "plugins/Iso9660ArchivePlugin.hxx"
#include "plugins/ZzipArchivePlugin.hxx"
#include <cassert>
#include <iterator>
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#include <string.h>
const ArchivePlugin *const archive_plugins[] = {
#ifdef ENABLE_BZ2
&bz2_archive_plugin,
#endif
#ifdef ENABLE_ZZIP
&zzip_archive_plugin,
#endif
#ifdef ENABLE_ISO9660
&iso9660_archive_plugin,
#endif
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nullptr
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};
static constexpr std::size_t n_archive_plugins = std::size(archive_plugins) - 1;
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/** which plugins have been initialized successfully? */
/* the std::max() is just here to avoid a zero-sized array, which is
forbidden in C++ */
static bool archive_plugins_enabled[std::max(n_archive_plugins, std::size_t(1))];
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#define archive_plugins_for_each_enabled(plugin) \
archive_plugins_for_each(plugin) \
if (archive_plugins_enabled[archive_plugin_iterator - archive_plugins])
const ArchivePlugin *
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archive_plugin_from_suffix(const char *suffix) noexcept
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{
assert(suffix != nullptr);
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archive_plugins_for_each_enabled(plugin)
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if (plugin->suffixes != nullptr &&
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StringArrayContainsCase(plugin->suffixes, suffix))
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return plugin;
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return nullptr;
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}
const ArchivePlugin *
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archive_plugin_from_name(const char *name) noexcept
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{
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archive_plugins_for_each_enabled(plugin)
if (strcmp(plugin->name, name) == 0)
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return plugin;
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return nullptr;
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}
void archive_plugin_init_all()
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{
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for (unsigned i = 0; archive_plugins[i] != nullptr; ++i) {
const ArchivePlugin *plugin = archive_plugins[i];
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if (plugin->init == nullptr || archive_plugins[i]->init())
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archive_plugins_enabled[i] = true;
}
}
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void
archive_plugin_deinit_all() noexcept
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{
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archive_plugins_for_each_enabled(plugin)
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if (plugin->finish != nullptr)
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plugin->finish();
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}