/* the Music Player Daemon (MPD) * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com) * Copyright (C) 2008 Max Kellermann <max@duempel.org> * 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 */ #ifndef MPD_DATABASE_H #define MPD_DATABASE_H #include <sys/time.h> #include <stdbool.h> struct directory; /** * Initialize the database library. * * @param path the absolute path of the database file */ void db_init(const char *path); void db_finish(void); /** * Clear the database. */ void db_clear(void); /** * Returns the root directory object. Returns NULL if there is no * configured music directory. */ struct directory * db_get_root(void); struct directory * db_get_directory(const char *name); struct song * db_get_song(const char *file); int db_walk(const char *name, int (*forEachSong)(struct song *, void *), int (*forEachDir)(struct directory *, void *), void *data); bool db_check(void); bool db_save(void); bool db_load(void); time_t db_get_mtime(void); /** * Returns true if there is a valid database file on the disk. */ static inline bool db_exists(void) { /* mtime is set only if the database file was loaded or saved successfully */ return db_get_mtime() > 0; } #endif