753 lines
16 KiB
C++
753 lines
16 KiB
C++
/*
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* Copyright 2003-2017 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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#include "config.h"
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#include "Main.hxx"
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#include "Instance.hxx"
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#include "CommandLine.hxx"
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#include "PlaylistFile.hxx"
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#include "MusicChunk.hxx"
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#include "StateFile.hxx"
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#include "player/Thread.hxx"
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#include "Mapper.hxx"
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#include "Permission.hxx"
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#include "Listen.hxx"
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#include "client/Listener.hxx"
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#include "client/Client.hxx"
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#include "client/ClientList.hxx"
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#include "command/AllCommands.hxx"
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#include "Partition.hxx"
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#include "tag/Config.hxx"
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#include "ReplayGainGlobal.hxx"
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#include "Idle.hxx"
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#include "Log.hxx"
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#include "LogInit.hxx"
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#include "input/Init.hxx"
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#include "event/Loop.hxx"
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#include "fs/AllocatedPath.hxx"
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#include "fs/Config.hxx"
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#include "playlist/PlaylistRegistry.hxx"
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#include "zeroconf/ZeroconfGlue.hxx"
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#include "decoder/DecoderList.hxx"
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#include "AudioParser.hxx"
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#include "pcm/PcmConvert.hxx"
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#include "unix/SignalHandlers.hxx"
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#include "system/FatalError.hxx"
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#include "thread/Slack.hxx"
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#include "net/Init.hxx"
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#include "lib/icu/Init.hxx"
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#include "config/Global.hxx"
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#include "config/Param.hxx"
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#include "config/Defaults.hxx"
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#include "config/Option.hxx"
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#include "config/Domain.hxx"
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#include "util/RuntimeError.hxx"
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#ifdef ENABLE_DAEMON
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#include "unix/Daemon.hxx"
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#endif
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#ifdef ENABLE_DATABASE
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#include "db/update/Service.hxx"
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#include "db/Configured.hxx"
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#include "db/DatabasePlugin.hxx"
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#include "db/plugins/simple/SimpleDatabasePlugin.hxx"
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#include "storage/Configured.hxx"
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#include "storage/CompositeStorage.hxx"
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#ifdef ENABLE_INOTIFY
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#include "db/update/InotifyUpdate.hxx"
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#endif
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#endif
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#ifdef ENABLE_NEIGHBOR_PLUGINS
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#include "neighbor/Glue.hxx"
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#endif
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#ifdef ENABLE_SQLITE
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#include "sticker/StickerDatabase.hxx"
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#endif
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#ifdef ENABLE_ARCHIVE
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#include "archive/ArchiveList.hxx"
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#endif
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#ifdef ANDROID
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#include "java/Global.hxx"
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#include "java/File.hxx"
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#include "android/Environment.hxx"
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#include "android/Context.hxx"
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#include "fs/StandardDirectory.hxx"
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#include "fs/FileSystem.hxx"
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#include "org_musicpd_Bridge.h"
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#endif
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#ifdef ENABLE_SYSTEMD_DAEMON
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#include <systemd/sd-daemon.h>
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#endif
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#ifdef ENABLE_DBUS
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#include <dbus/dbus.h>
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#endif
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#include <stdlib.h>
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#ifdef HAVE_LOCALE_H
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#include <locale.h>
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#endif
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#include <limits.h>
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static constexpr size_t KILOBYTE = 1024;
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static constexpr size_t MEGABYTE = 1024 * KILOBYTE;
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static constexpr size_t DEFAULT_BUFFER_SIZE = 4 * MEGABYTE;
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static constexpr
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size_t MIN_BUFFER_SIZE = std::max(CHUNK_SIZE * 32,
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64 * KILOBYTE);
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static constexpr unsigned DEFAULT_BUFFER_BEFORE_PLAY = 10;
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#ifdef ANDROID
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Context *context;
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#endif
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Instance *instance;
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struct Config {
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ReplayGainConfig replay_gain;
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};
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static Config
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LoadConfig()
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{
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return {LoadReplayGainConfig()};
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}
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#ifdef ENABLE_DAEMON
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static void
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glue_daemonize_init(const struct options *options)
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{
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daemonize_init(config_get_string(ConfigOption::USER, nullptr),
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config_get_string(ConfigOption::GROUP, nullptr),
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config_get_path(ConfigOption::PID_FILE));
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if (options->kill)
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daemonize_kill();
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}
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#endif
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static void
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glue_mapper_init()
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{
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mapper_init(config_get_path(ConfigOption::PLAYLIST_DIR));
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}
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#ifdef ENABLE_DATABASE
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static void
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InitStorage(EventLoop &event_loop)
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{
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auto storage = CreateConfiguredStorage(event_loop);
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if (storage == nullptr)
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return;
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CompositeStorage *composite = new CompositeStorage();
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instance->storage = composite;
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composite->Mount("", std::move(storage));
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}
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/**
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* Returns the database. If this function returns false, this has not
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* succeeded, and the caller should create the database after the
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* process has been daemonized.
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*/
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static bool
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glue_db_init_and_load(void)
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{
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instance->database =
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CreateConfiguredDatabase(instance->event_loop,
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instance->io_thread.GetEventLoop(),
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*instance);
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if (instance->database == nullptr)
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return true;
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if (instance->database->GetPlugin().flags & DatabasePlugin::FLAG_REQUIRE_STORAGE) {
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InitStorage(instance->io_thread.GetEventLoop());
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if (instance->storage == nullptr) {
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delete instance->database;
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instance->database = nullptr;
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LogDefault(config_domain,
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"Found database setting without "
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"music_directory - disabling database");
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return true;
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}
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} else {
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if (IsStorageConfigured())
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LogDefault(config_domain,
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"Ignoring the storage configuration "
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"because the database does not need it");
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}
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try {
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instance->database->Open();
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} catch (...) {
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std::throw_with_nested(std::runtime_error("Failed to open database plugin"));
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}
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if (!instance->database->IsPlugin(simple_db_plugin))
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return true;
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SimpleDatabase &db = *(SimpleDatabase *)instance->database;
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instance->update = new UpdateService(instance->event_loop, db,
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static_cast<CompositeStorage &>(*instance->storage),
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*instance);
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/* run database update after daemonization? */
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return db.FileExists();
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}
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static bool
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InitDatabaseAndStorage()
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{
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const bool create_db = !glue_db_init_and_load();
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return create_db;
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}
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#endif
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/**
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* Configure and initialize the sticker subsystem.
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*/
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static void
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glue_sticker_init()
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{
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#ifdef ENABLE_SQLITE
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auto sticker_file = config_get_path(ConfigOption::STICKER_FILE);
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if (sticker_file.IsNull())
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return;
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sticker_global_init(std::move(sticker_file));
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#endif
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}
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static void
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glue_state_file_init()
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{
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auto path_fs = config_get_path(ConfigOption::STATE_FILE);
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if (path_fs.IsNull()) {
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#ifdef ANDROID
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const auto cache_dir = GetUserCacheDir();
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if (cache_dir.IsNull())
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return;
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path_fs = AllocatedPath::Build(cache_dir, "state");
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#else
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return;
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#endif
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}
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const auto interval =
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config_get_unsigned(ConfigOption::STATE_FILE_INTERVAL,
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StateFile::DEFAULT_INTERVAL);
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instance->state_file = new StateFile(std::move(path_fs), interval,
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instance->partitions.front(),
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instance->event_loop);
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instance->state_file->Read();
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}
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/**
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* Initialize the decoder and player core, including the music pipe.
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*/
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static void
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initialize_decoder_and_player(const ReplayGainConfig &replay_gain_config)
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{
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const ConfigParam *param;
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size_t buffer_size;
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param = config_get_param(ConfigOption::AUDIO_BUFFER_SIZE);
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if (param != nullptr) {
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char *test;
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long tmp = strtol(param->value.c_str(), &test, 10);
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if (*test != '\0' || tmp <= 0 || tmp == LONG_MAX)
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FormatFatalError("buffer size \"%s\" is not a "
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"positive integer, line %i",
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param->value.c_str(), param->line);
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buffer_size = tmp * KILOBYTE;
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if (buffer_size < MIN_BUFFER_SIZE) {
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FormatWarning(config_domain, "buffer size %lu is too small, using %lu bytes instead",
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(unsigned long)buffer_size,
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(unsigned long)MIN_BUFFER_SIZE);
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buffer_size = MIN_BUFFER_SIZE;
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}
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} else
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buffer_size = DEFAULT_BUFFER_SIZE;
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const unsigned buffered_chunks = buffer_size / CHUNK_SIZE;
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if (buffered_chunks >= 1 << 15)
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FormatFatalError("buffer size \"%lu\" is too big",
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(unsigned long)buffer_size);
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float perc;
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param = config_get_param(ConfigOption::BUFFER_BEFORE_PLAY);
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if (param != nullptr) {
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char *test;
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perc = strtod(param->value.c_str(), &test);
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if (*test != '%' || perc < 0 || perc > 100) {
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FormatFatalError("buffered before play \"%s\" is not "
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"a positive percentage and less "
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"than 100 percent, line %i",
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param->value.c_str(), param->line);
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}
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if (perc > 80) {
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/* this upper limit should avoid deadlocks
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which can occur because the DecoderThread
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cannot ever fill the music buffer to
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exactly 100%; a few chunks always need to
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be available to generate silence in
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Player::SendSilence() */
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FormatError(config_domain,
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"buffer_before_play is too large (%f%%), capping at 80%%; please fix your configuration",
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perc);
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perc = 80;
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}
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} else
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perc = DEFAULT_BUFFER_BEFORE_PLAY;
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unsigned buffered_before_play = (perc / 100) * buffered_chunks;
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if (buffered_before_play > buffered_chunks)
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buffered_before_play = buffered_chunks;
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const unsigned max_length =
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config_get_positive(ConfigOption::MAX_PLAYLIST_LENGTH,
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DEFAULT_PLAYLIST_MAX_LENGTH);
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AudioFormat configured_audio_format = AudioFormat::Undefined();
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param = config_get_param(ConfigOption::AUDIO_OUTPUT_FORMAT);
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if (param != nullptr) {
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try {
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configured_audio_format = ParseAudioFormat(param->value.c_str(),
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true);
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} catch (...) {
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std::throw_with_nested(FormatRuntimeError("error parsing line %i",
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param->line));
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}
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}
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instance->partitions.emplace_back(*instance,
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"default",
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max_length,
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buffered_chunks,
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buffered_before_play,
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configured_audio_format,
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replay_gain_config);
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auto &partition = instance->partitions.back();
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try {
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param = config_get_param(ConfigOption::REPLAYGAIN);
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if (param != nullptr)
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partition.replay_gain_mode =
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FromString(param->value.c_str());
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} catch (...) {
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std::throw_with_nested(FormatRuntimeError("Failed to parse line %i",
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param->line));
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}
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}
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inline void
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Instance::BeginShutdownUpdate() noexcept
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{
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#ifdef ENABLE_DATABASE
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#ifdef ENABLE_INOTIFY
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mpd_inotify_finish();
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#endif
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if (update != nullptr)
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update->CancelAllAsync();
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#endif
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}
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inline void
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Instance::FinishShutdownUpdate() noexcept
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{
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#ifdef ENABLE_DATABASE
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delete update;
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#endif
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}
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inline void
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Instance::ShutdownDatabase() noexcept
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{
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#ifdef ENABLE_DATABASE
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if (instance->database != nullptr) {
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instance->database->Close();
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delete instance->database;
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}
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delete instance->storage;
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#endif
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}
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inline void
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Instance::BeginShutdownPartitions() noexcept
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{
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for (auto &partition : partitions) {
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partition.pc.Kill();
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partition.listener.reset();
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}
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}
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inline void
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Instance::FinishShutdownPartitions() noexcept
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{
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partitions.clear();
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}
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void
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Instance::OnIdle(unsigned flags)
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{
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/* send "idle" notifications to all subscribed
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clients */
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client_list->IdleAdd(flags);
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if (flags & (IDLE_PLAYLIST|IDLE_PLAYER|IDLE_MIXER|IDLE_OUTPUT) &&
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state_file != nullptr)
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state_file->CheckModified();
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}
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#ifndef ANDROID
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int main(int argc, char *argv[])
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{
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#ifdef _WIN32
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return win32_main(argc, argv);
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#else
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return mpd_main(argc, argv);
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#endif
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}
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#endif
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static int
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mpd_main_after_fork(const Config &config);
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#ifdef ANDROID
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static inline
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#endif
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int mpd_main(int argc, char *argv[])
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try {
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struct options options;
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#ifdef ENABLE_DAEMON
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daemonize_close_stdin();
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#endif
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#ifndef ANDROID
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#ifdef HAVE_LOCALE_H
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/* initialize locale */
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setlocale(LC_CTYPE,"");
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setlocale(LC_COLLATE, "");
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#endif
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#endif
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IcuInit();
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const ScopeNetInit net_init;
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config_global_init();
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#ifdef ANDROID
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(void)argc;
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(void)argv;
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const auto sdcard = Environment::getExternalStorageDirectory();
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if (!sdcard.IsNull()) {
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const auto config_path =
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AllocatedPath::Build(sdcard, "mpd.conf");
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if (FileExists(config_path))
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ReadConfigFile(config_path);
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}
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#else
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ParseCommandLine(argc, argv, options);
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#endif
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const auto config = LoadConfig();
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#ifdef ENABLE_DAEMON
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glue_daemonize_init(&options);
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#endif
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TagLoadConfig();
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log_init(options.verbose, options.log_stderr);
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instance = new Instance();
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#ifdef ENABLE_NEIGHBOR_PLUGINS
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instance->neighbors = new NeighborGlue();
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instance->neighbors->Init(instance->io_thread.GetEventLoop(),
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*instance);
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if (instance->neighbors->IsEmpty()) {
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delete instance->neighbors;
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instance->neighbors = nullptr;
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}
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#endif
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const unsigned max_clients =
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config_get_positive(ConfigOption::MAX_CONN, 10);
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instance->client_list = new ClientList(max_clients);
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initialize_decoder_and_player(config.replay_gain);
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listen_global_init(*instance->partitions.front().listener);
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#ifdef ENABLE_DAEMON
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daemonize_set_user();
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daemonize_begin(options.daemon);
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#endif
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return mpd_main_after_fork(config);
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} catch (const std::exception &e) {
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LogError(e);
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return EXIT_FAILURE;
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}
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static int
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mpd_main_after_fork(const Config &config)
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try {
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ConfigureFS();
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glue_mapper_init();
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initPermissions();
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spl_global_init();
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#ifdef ENABLE_ARCHIVE
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archive_plugin_init_all();
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#endif
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pcm_convert_global_init();
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decoder_plugin_init_all();
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#ifdef ENABLE_DATABASE
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const bool create_db = InitDatabaseAndStorage();
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#endif
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glue_sticker_init();
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command_init();
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for (auto &partition : instance->partitions) {
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partition.outputs.Configure(instance->rtio_thread.GetEventLoop(),
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config.replay_gain,
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partition.pc);
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partition.UpdateEffectiveReplayGainMode();
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}
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client_manager_init();
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input_stream_global_init(instance->io_thread.GetEventLoop());
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playlist_list_global_init();
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#ifdef ENABLE_DAEMON
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daemonize_commit();
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#endif
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#ifndef ANDROID
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setup_log_output();
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|
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SignalHandlersInit(instance->event_loop);
|
|
#endif
|
|
|
|
instance->io_thread.Start();
|
|
instance->rtio_thread.Start();
|
|
|
|
#ifdef ENABLE_NEIGHBOR_PLUGINS
|
|
if (instance->neighbors != nullptr)
|
|
instance->neighbors->Open();
|
|
#endif
|
|
|
|
ZeroconfInit(instance->event_loop);
|
|
|
|
for (auto &partition : instance->partitions)
|
|
StartPlayerThread(partition.pc);
|
|
|
|
#ifdef ENABLE_DATABASE
|
|
if (create_db) {
|
|
/* the database failed to load: recreate the
|
|
database */
|
|
unsigned job = instance->update->Enqueue("", true);
|
|
if (job == 0)
|
|
FatalError("directory update failed");
|
|
}
|
|
#endif
|
|
|
|
glue_state_file_init();
|
|
|
|
#ifdef ENABLE_DATABASE
|
|
if (config_get_bool(ConfigOption::AUTO_UPDATE, false)) {
|
|
#ifdef ENABLE_INOTIFY
|
|
if (instance->storage != nullptr &&
|
|
instance->update != nullptr)
|
|
mpd_inotify_init(instance->event_loop,
|
|
*instance->storage,
|
|
*instance->update,
|
|
config_get_unsigned(ConfigOption::AUTO_UPDATE_DEPTH,
|
|
INT_MAX));
|
|
#else
|
|
FormatWarning(config_domain,
|
|
"inotify: auto_update was disabled. enable during compilation phase");
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
config_global_check();
|
|
|
|
/* enable all audio outputs (if not already done by
|
|
playlist_state_restore() */
|
|
for (auto &partition : instance->partitions)
|
|
partition.pc.LockUpdateAudio();
|
|
|
|
#ifdef _WIN32
|
|
win32_app_started();
|
|
#endif
|
|
|
|
/* the MPD frontend does not care about timer slack; set it to
|
|
a huge value to allow the kernel to reduce CPU wakeups */
|
|
SetThreadTimerSlackMS(100);
|
|
|
|
#ifdef ENABLE_SYSTEMD_DAEMON
|
|
sd_notify(0, "READY=1");
|
|
#endif
|
|
|
|
/* run the main loop */
|
|
instance->event_loop.Run();
|
|
|
|
#ifdef _WIN32
|
|
win32_app_stopping();
|
|
#endif
|
|
|
|
/* cleanup */
|
|
|
|
instance->BeginShutdownUpdate();
|
|
|
|
if (instance->state_file != nullptr) {
|
|
instance->state_file->Write();
|
|
delete instance->state_file;
|
|
}
|
|
|
|
ZeroconfDeinit();
|
|
|
|
instance->BeginShutdownPartitions();
|
|
|
|
delete instance->client_list;
|
|
|
|
#ifdef ENABLE_NEIGHBOR_PLUGINS
|
|
if (instance->neighbors != nullptr) {
|
|
instance->neighbors->Close();
|
|
delete instance->neighbors;
|
|
}
|
|
#endif
|
|
|
|
instance->FinishShutdownUpdate();
|
|
instance->ShutdownDatabase();
|
|
|
|
#ifdef ENABLE_SQLITE
|
|
sticker_global_finish();
|
|
#endif
|
|
|
|
playlist_list_global_finish();
|
|
input_stream_global_finish();
|
|
|
|
#ifdef ENABLE_DATABASE
|
|
mapper_finish();
|
|
#endif
|
|
|
|
DeinitFS();
|
|
|
|
instance->FinishShutdownPartitions();
|
|
command_finish();
|
|
decoder_plugin_deinit_all();
|
|
#ifdef ENABLE_ARCHIVE
|
|
archive_plugin_deinit_all();
|
|
#endif
|
|
config_global_finish();
|
|
instance->rtio_thread.Stop();
|
|
instance->io_thread.Stop();
|
|
#ifndef ANDROID
|
|
SignalHandlersFinish();
|
|
#endif
|
|
delete instance;
|
|
instance = nullptr;
|
|
|
|
#ifdef ENABLE_DAEMON
|
|
daemonize_finish();
|
|
#endif
|
|
|
|
IcuFinish();
|
|
|
|
log_deinit();
|
|
|
|
#ifdef ENABLE_DBUS
|
|
/* free libdbus memory to make memory leak checkers happy */
|
|
dbus_shutdown();
|
|
#endif
|
|
|
|
return EXIT_SUCCESS;
|
|
} catch (const std::exception &e) {
|
|
LogError(e);
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
#ifdef ANDROID
|
|
|
|
gcc_visibility_default
|
|
JNIEXPORT void JNICALL
|
|
Java_org_musicpd_Bridge_run(JNIEnv *env, jclass, jobject _context)
|
|
{
|
|
Java::Init(env);
|
|
Java::File::Initialise(env);
|
|
Environment::Initialise(env);
|
|
|
|
context = new Context(env, _context);
|
|
|
|
mpd_main(0, nullptr);
|
|
|
|
delete context;
|
|
Environment::Deinitialise(env);
|
|
}
|
|
|
|
gcc_visibility_default
|
|
JNIEXPORT void JNICALL
|
|
Java_org_musicpd_Bridge_shutdown(JNIEnv *, jclass)
|
|
{
|
|
if (instance != nullptr)
|
|
instance->Break();
|
|
}
|
|
|
|
#endif
|