playlist_state.h

/*
 * Copyright (C) 2003-2009 The Music Player Daemon Project
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

/*
 * Saving and loading the playlist to/from the state file.
 *
 */

#ifndef PLAYLIST_STATE_H
#define PLAYLIST_STATE_H

#include <stdbool.h>
#include <stdio.h>

struct playlist;

void
playlist_state_save(FILE *fp, const struct playlist *playlist);

bool
playlist_state_restore(const char *line, FILE *fp, struct playlist *playlist);

/**
 * Generates a hash number for the current state of the playlist and
 * the playback options.  This is used by timer_save_state_file() to
 * determine whether the state has changed and the state file should
 * be saved.
 */
unsigned
playlist_state_get_hash(const struct playlist *playlist);

#endif