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/*
* Copyright (C) 2003-2011 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.
*/
#ifndef MPD_DB_VISITOR_H
#define MPD_DB_VISITOR_H
struct directory;
struct song;
struct playlist_metadata;
struct db_visitor {
/**
* Visit a directory. Optional method.
*
* @return true to continue the operation, false on error (set error_r)
*/
bool (*directory)(const struct directory *directory, void *ctx,
GError **error_r);
/**
* Visit a song. Optional method.
*
* @return true to continue the operation, false on error (set error_r)
*/
bool (*song)(struct song *song, void *ctx, GError **error_r);
/**
* Visit a playlist. Optional method.
*
* @param directory the directory the playlist resides in
* @return true to continue the operation, false on error (set error_r)
*/
bool (*playlist)(const struct playlist_metadata *playlist,
const struct directory *directory, void *ctx,
GError **error_r);
};
#endif
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