570 lines
12 KiB
C++
570 lines
12 KiB
C++
/*
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* Copyright (C) 2003-2013 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 "PlaylistGlobal.hxx"
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#include "UpdateGlue.hxx"
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#include "MusicChunk.hxx"
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#include "StateFile.hxx"
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#include "PlayerThread.hxx"
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#include "Mapper.hxx"
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#include "DatabaseGlue.hxx"
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#include "DatabaseSimple.hxx"
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#include "Permission.hxx"
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#include "Listen.hxx"
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#include "Client.hxx"
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#include "ClientList.hxx"
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#include "command/AllCommands.hxx"
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#include "Partition.hxx"
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#include "Volume.hxx"
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#include "OutputAll.hxx"
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#include "tag/TagConfig.hxx"
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#include "ReplayGainConfig.hxx"
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#include "Idle.hxx"
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#include "SignalHandlers.hxx"
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#include "Log.hxx"
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#include "LogInit.hxx"
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#include "GlobalEvents.hxx"
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#include "InputInit.hxx"
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#include "event/Loop.hxx"
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#include "IOThread.hxx"
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#include "fs/AllocatedPath.hxx"
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#include "fs/Config.hxx"
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#include "PlaylistRegistry.hxx"
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#include "ZeroconfGlue.hxx"
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#include "DecoderList.hxx"
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#include "AudioConfig.hxx"
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#include "pcm/PcmResample.hxx"
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#include "Daemon.hxx"
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#include "system/FatalError.hxx"
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#include "util/Error.hxx"
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#include "util/Domain.hxx"
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#include "thread/Id.hxx"
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#include "ConfigGlobal.hxx"
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#include "ConfigData.hxx"
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#include "ConfigDefaults.hxx"
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#include "ConfigOption.hxx"
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#include "Stats.hxx"
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#ifdef ENABLE_INOTIFY
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#include "InotifyUpdate.hxx"
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#endif
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#ifdef ENABLE_SQLITE
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#include "StickerDatabase.hxx"
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#endif
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#ifdef ENABLE_ARCHIVE
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#include "ArchiveList.hxx"
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#endif
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#include <glib.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.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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#ifdef WIN32
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#endif
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static constexpr unsigned DEFAULT_BUFFER_SIZE = 4096;
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static constexpr unsigned DEFAULT_BUFFER_BEFORE_PLAY = 10;
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static constexpr Domain main_domain("main");
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ThreadId main_thread;
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EventLoop *main_loop;
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Instance *instance;
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static StateFile *state_file;
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static bool
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glue_daemonize_init(const struct options *options, Error &error)
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{
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auto pid_file = config_get_path(CONF_PID_FILE, error);
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if (pid_file.IsNull() && error.IsDefined())
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return false;
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daemonize_init(config_get_string(CONF_USER, nullptr),
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config_get_string(CONF_GROUP, nullptr),
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std::move(pid_file));
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if (options->kill)
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daemonize_kill();
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return true;
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}
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static bool
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glue_mapper_init(Error &error)
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{
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auto music_dir = config_get_path(CONF_MUSIC_DIR, error);
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if (music_dir.IsNull() && error.IsDefined())
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return false;
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auto playlist_dir = config_get_path(CONF_PLAYLIST_DIR, error);
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if (playlist_dir.IsNull() && error.IsDefined())
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return false;
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if (music_dir.IsNull()) {
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const char *path =
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g_get_user_special_dir(G_USER_DIRECTORY_MUSIC);
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if (path != nullptr) {
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music_dir = AllocatedPath::FromUTF8(path, error);
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if (music_dir.IsNull())
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return false;
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}
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}
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mapper_init(std::move(music_dir), std::move(playlist_dir));
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return true;
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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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const struct config_param *param = config_get_param(CONF_DATABASE);
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const struct config_param *path = config_get_param(CONF_DB_FILE);
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if (param != nullptr && path != nullptr)
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LogWarning(main_domain,
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"Found both 'database' and 'db_file' setting - ignoring the latter");
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if (!mapper_has_music_directory()) {
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if (param != nullptr)
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LogDefault(main_domain,
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"Found database setting without "
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"music_directory - disabling database");
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if (path != nullptr)
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LogDefault(main_domain,
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"Found db_file setting without "
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"music_directory - disabling database");
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return true;
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}
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struct config_param *allocated = nullptr;
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if (param == nullptr && path != nullptr) {
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allocated = new config_param("database", path->line);
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allocated->AddBlockParam("path", path->value.c_str(),
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path->line);
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param = allocated;
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}
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if (param == nullptr)
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return true;
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Error error;
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if (!DatabaseGlobalInit(*param, error))
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FatalError(error);
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delete allocated;
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if (!DatabaseGlobalOpen(error))
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FatalError(error);
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/* run database update after daemonization? */
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return !db_is_simple() || db_exists();
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}
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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(void)
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{
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#ifdef ENABLE_SQLITE
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Error error;
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auto sticker_file = config_get_path(CONF_STICKER_FILE, error);
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if (sticker_file.IsNull()) {
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if (error.IsDefined())
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FatalError(error);
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return;
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}
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if (!sticker_global_init(std::move(sticker_file), error))
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FatalError(error);
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#endif
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}
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static bool
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glue_state_file_init(Error &error)
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{
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auto path_fs = config_get_path(CONF_STATE_FILE, error);
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if (path_fs.IsNull())
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return !error.IsDefined();
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state_file = new StateFile(std::move(path_fs),
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*instance->partition, *main_loop);
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state_file->Read();
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return true;
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}
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/**
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* Windows-only initialization of the Winsock2 library.
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*/
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static void winsock_init(void)
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{
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#ifdef WIN32
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WSADATA sockinfo;
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int retval;
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retval = WSAStartup(MAKEWORD(2, 2), &sockinfo);
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if(retval != 0)
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FormatFatalError("Attempt to open Winsock2 failed; error code %d",
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retval);
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if (LOBYTE(sockinfo.wVersion) != 2)
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FatalError("We use Winsock2 but your version is either too new "
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"or old; please install Winsock 2.x");
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#endif
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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(void)
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{
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const struct config_param *param;
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char *test;
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size_t buffer_size;
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float perc;
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unsigned buffered_chunks;
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unsigned buffered_before_play;
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param = config_get_param(CONF_AUDIO_BUFFER_SIZE);
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if (param != nullptr) {
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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;
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} else
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buffer_size = DEFAULT_BUFFER_SIZE;
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buffer_size *= 1024;
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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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param = config_get_param(CONF_BUFFER_BEFORE_PLAY);
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if (param != nullptr) {
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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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} else
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perc = DEFAULT_BUFFER_BEFORE_PLAY;
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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(CONF_MAX_PLAYLIST_LENGTH,
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DEFAULT_PLAYLIST_MAX_LENGTH);
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instance->partition = new Partition(*instance,
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max_length,
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buffered_chunks,
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buffered_before_play);
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}
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/**
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* Handler for GlobalEvents::IDLE.
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*/
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static void
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idle_event_emitted(void)
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{
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/* send "idle" notifications to all subscribed
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clients */
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unsigned flags = idle_get();
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if (flags != 0)
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instance->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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#ifdef WIN32
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/**
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* Handler for GlobalEvents::SHUTDOWN.
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*/
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static void
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shutdown_event_emitted(void)
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{
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main_loop->Break();
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}
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#endif
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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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int mpd_main(int argc, char *argv[])
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{
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struct options options;
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clock_t start;
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bool create_db;
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Error error;
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bool success;
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daemonize_close_stdin();
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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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#endif
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g_set_application_name("Music Player Daemon");
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#if !GLIB_CHECK_VERSION(2,32,0)
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/* enable GLib's thread safety code */
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g_thread_init(nullptr);
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#endif
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io_thread_init();
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winsock_init();
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config_global_init();
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success = parse_cmdline(argc, argv, &options, error);
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if (!success) {
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LogError(error);
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return EXIT_FAILURE;
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}
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if (!glue_daemonize_init(&options, error)) {
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LogError(error);
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return EXIT_FAILURE;
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}
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stats_global_init();
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TagLoadConfig();
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if (!log_init(options.verbose, options.log_stderr, error)) {
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LogError(error);
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return EXIT_FAILURE;
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}
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main_thread = ThreadId::GetCurrent();
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main_loop = new EventLoop(EventLoop::Default());
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instance = new Instance();
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const unsigned max_clients = config_get_positive(CONF_MAX_CONN, 10);
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instance->client_list = new ClientList(max_clients);
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success = listen_global_init(error);
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if (!success) {
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LogError(error);
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return EXIT_FAILURE;
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}
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daemonize_set_user();
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GlobalEvents::Initialize(*main_loop);
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GlobalEvents::Register(GlobalEvents::IDLE, idle_event_emitted);
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#ifdef WIN32
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GlobalEvents::Register(GlobalEvents::SHUTDOWN, shutdown_event_emitted);
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#endif
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ConfigureFS();
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if (!glue_mapper_init(error)) {
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LogError(error);
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return EXIT_FAILURE;
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}
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initPermissions();
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playlist_global_init();
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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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if (!pcm_resample_global_init(error)) {
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LogError(error);
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return EXIT_FAILURE;
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}
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decoder_plugin_init_all();
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update_global_init();
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create_db = !glue_db_init_and_load();
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glue_sticker_init();
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command_init();
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initialize_decoder_and_player();
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volume_init();
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initAudioConfig();
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audio_output_all_init(instance->partition->pc);
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client_manager_init();
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replay_gain_global_init();
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if (!input_stream_global_init(error)) {
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LogError(error);
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return EXIT_FAILURE;
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}
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playlist_list_global_init();
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daemonize(options.daemon);
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setup_log_output(options.log_stderr);
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SignalHandlersInit(*main_loop);
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io_thread_start();
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ZeroconfInit(*main_loop);
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player_create(instance->partition->pc);
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if (create_db) {
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/* the database failed to load: recreate the
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database */
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unsigned job = update_enqueue("", true);
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if (job == 0)
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FatalError("directory update failed");
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}
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if (!glue_state_file_init(error)) {
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g_printerr("%s\n", error.GetMessage());
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return EXIT_FAILURE;
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}
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audio_output_all_set_replay_gain_mode(replay_gain_get_real_mode(instance->partition->playlist.queue.random));
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success = config_get_bool(CONF_AUTO_UPDATE, false);
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#ifdef ENABLE_INOTIFY
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if (success && mapper_has_music_directory())
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mpd_inotify_init(config_get_unsigned(CONF_AUTO_UPDATE_DEPTH,
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G_MAXUINT));
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#else
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if (success)
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FormatWarning(main_domain,
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"inotify: auto_update was disabled. enable during compilation phase");
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#endif
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config_global_check();
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/* enable all audio outputs (if not already done by
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playlist_state_restore() */
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instance->partition->pc.UpdateAudio();
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#ifdef WIN32
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win32_app_started();
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#endif
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/* run the main loop */
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main_loop->Run();
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#ifdef WIN32
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win32_app_stopping();
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#endif
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/* cleanup */
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#ifdef ENABLE_INOTIFY
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mpd_inotify_finish();
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#endif
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if (state_file != nullptr) {
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state_file->Write();
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delete state_file;
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}
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instance->partition->pc.Kill();
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ZeroconfDeinit();
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listen_global_finish();
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delete instance->client_list;
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start = clock();
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DatabaseGlobalDeinit();
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FormatDebug(main_domain,
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"db_finish took %f seconds",
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((float)(clock()-start))/CLOCKS_PER_SEC);
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#ifdef ENABLE_SQLITE
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sticker_global_finish();
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#endif
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GlobalEvents::Deinitialize();
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playlist_list_global_finish();
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input_stream_global_finish();
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audio_output_all_finish();
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volume_finish();
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mapper_finish();
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delete instance->partition;
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command_finish();
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update_global_finish();
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decoder_plugin_deinit_all();
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#ifdef ENABLE_ARCHIVE
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archive_plugin_deinit_all();
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#endif
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config_global_finish();
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stats_global_finish();
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io_thread_deinit();
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SignalHandlersFinish();
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delete instance;
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delete main_loop;
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daemonize_finish();
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#ifdef WIN32
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WSACleanup();
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#endif
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log_deinit();
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return EXIT_SUCCESS;
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}
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