/* the Music Player Daemon (MPD) * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com) * This project's homepage is: http://www.musicpd.org * * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "main.h" #include "daemon.h" #include "client.h" #include "idle.h" #include "command.h" #include "playlist.h" #include "stored_playlist.h" #include "database.h" #include "update.h" #include "player_thread.h" #include "listen.h" #include "cmdline.h" #include "conf.h" #include "path.h" #include "mapper.h" #include "pipe.h" #include "decoder_control.h" #include "player_control.h" #include "stats.h" #include "sig_handlers.h" #include "audio.h" #include "output_all.h" #include "volume.h" #include "log.h" #include "permission.h" #include "replay_gain.h" #include "decoder_list.h" #include "input_stream.h" #include "state_file.h" #include "tag.h" #include "dbUtils.h" #include "config.h" #include "normalize.h" #include "zeroconf.h" #include "event_pipe.h" #include "dirvec.h" #include "songvec.h" #include "tag_pool.h" #ifdef ENABLE_SQLITE #include "sticker.h" #endif #ifdef ENABLE_ARCHIVE #include "archive_list.h" #endif #include <glib.h> #include <unistd.h> #include <stdlib.h> #include <errno.h> #include <string.h> #ifdef HAVE_LOCALE_H #include <locale.h> #endif enum { DEFAULT_BUFFER_SIZE = 2048, DEFAULT_BUFFER_BEFORE_PLAY = 10, }; GThread *main_task; GMainLoop *main_loop; struct notify main_notify; /** * Returns the database. If this function returns false, this has not * succeeded, and the caller should create the database after the * process has been daemonized. */ static bool openDB(const Options *options) { const char *path = config_get_path(CONF_DB_FILE); bool ret; GError *error = NULL; if (!mapper_has_music_directory()) { if (path != NULL) g_message("Found " CONF_DB_FILE " setting without " CONF_MUSIC_DIR " - disabling database"); db_init(NULL); return true; } if (path == NULL) g_error(CONF_DB_FILE " setting missing"); db_init(path); if (options->createDB > 0) /* don't attempt to load the old database */ return false; ret = db_load(&error); if (!ret) { g_warning("Failed to load database: %s", error->message); g_error_free(error); if (options->createDB < 0) g_error("can't open db file and using " "\"--no-create-db\" command line option"); if (!db_check()) exit(EXIT_FAILURE); db_clear(); /* run database update after daemonization */ return false; } return true; } /** * Initialize the decoder and player core, including the music pipe. */ static void initialize_decoder_and_player(void) { const struct config_param *param; char *test; size_t buffer_size; float perc; unsigned buffered_chunks; unsigned buffered_before_play; param = config_get_param(CONF_AUDIO_BUFFER_SIZE); if (param != NULL) { buffer_size = strtol(param->value, &test, 10); if (*test != '\0' || buffer_size <= 0) g_error("buffer size \"%s\" is not a positive integer, " "line %i\n", param->value, param->line); } else buffer_size = DEFAULT_BUFFER_SIZE; buffer_size *= 1024; buffered_chunks = buffer_size / CHUNK_SIZE; if (buffered_chunks >= 1 << 15) g_error("buffer size \"%li\" is too big\n", (long)buffer_size); param = config_get_param(CONF_BUFFER_BEFORE_PLAY); if (param != NULL) { perc = strtod(param->value, &test); if (*test != '%' || perc < 0 || perc > 100) { FATAL("buffered before play \"%s\" is not a positive " "percentage and less than 100 percent, line %i" "\n", param->value, param->line); } } else perc = DEFAULT_BUFFER_BEFORE_PLAY; buffered_before_play = (perc / 100) * buffered_chunks; if (buffered_before_play > buffered_chunks) buffered_before_play = buffered_chunks; pc_init(buffered_before_play); music_pipe_init(buffered_chunks, &pc.notify); dc_init(); } /** * event_pipe callback function for PIPE_EVENT_IDLE */ static void idle_event_emitted(void) { /* send "idle" notificaions to all subscribed clients */ unsigned flags = idle_get(); if (flags != 0) client_manager_idle_add(flags); } int main(int argc, char *argv[]) { Options options; clock_t start; bool create_db; daemonize_close_stdin(); #ifdef HAVE_LOCALE_H /* initialize locale */ setlocale(LC_CTYPE,""); #endif /* enable GLib's thread safety code */ g_thread_init(NULL); idle_init(); dirvec_init(); songvec_init(); tag_pool_init(); config_global_init(); parseOptions(argc, argv, &options); daemonize_init(config_get_string(CONF_USER, NULL), config_get_path(CONF_PID_FILE)); if (options.kill) daemonize_kill(); stats_global_init(); tag_lib_init(); log_init(options.verbose, options.stdOutput); listen_global_init(); daemonize_set_user(); main_task = g_thread_self(); main_loop = g_main_loop_new(NULL, FALSE); notify_init(&main_notify); event_pipe_init(); event_pipe_register(PIPE_EVENT_IDLE, idle_event_emitted); path_global_init(); mapper_init(); initPermissions(); initPlaylist(); spl_global_init(); #ifdef ENABLE_ARCHIVE archive_plugin_init_all(); #endif decoder_plugin_init_all(); update_global_init(); create_db = !openDB(&options); #ifdef ENABLE_SQLITE sticker_global_init(config_get_path(CONF_STICKER_FILE)); #endif command_init(); initialize_decoder_and_player(); volume_init(); initAudioConfig(); audio_output_all_init(); client_manager_init(); replay_gain_global_init(); initNormalization(); input_stream_global_init(); daemonize(options.daemon); setup_log_output(options.stdOutput); initSigHandlers(); initZeroconf(); player_create(); if (create_db) { /* the database failed to load, or MPD was started with --create-db: recreate a new database */ unsigned job = directory_update_init(NULL); if (job == 0) g_error("directory update failed"); } state_file_init(config_get_path(CONF_STATE_FILE)); /* run the main loop */ g_main_loop_run(main_loop); /* cleanup */ g_main_loop_unref(main_loop); state_file_finish(); playerKill(); finishZeroconf(); client_manager_deinit(); listen_global_finish(); finishPlaylist(); start = clock(); db_finish(); g_debug("db_finish took %f seconds", ((float)(clock()-start))/CLOCKS_PER_SEC); #ifdef ENABLE_SQLITE sticker_global_finish(); #endif notify_deinit(&main_notify); event_pipe_deinit(); input_stream_global_finish(); finishNormalization(); audio_output_all_finish(); finishAudioConfig(); volume_finish(); mapper_finish(); path_global_finish(); finishPermissions(); dc_deinit(); pc_deinit(); command_finish(); update_global_finish(); decoder_plugin_deinit_all(); #ifdef ENABLE_ARCHIVE archive_plugin_deinit_all(); #endif music_pipe_free(); config_global_finish(); tag_pool_deinit(); songvec_deinit(); dirvec_deinit(); idle_deinit(); stats_global_finish(); daemonize_finish(); close_log_files(); return EXIT_SUCCESS; }