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directory.h

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/* libmpdclient
   (c) 2003-2010 The Music Player Daemon Project
   This project's homepage is: http://www.musicpd.org

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions
   are met:

   - Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.

   - Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.

   - Neither the name of the Music Player Daemon nor the names of its
   contributors may be used to endorse or promote products derived from
   this software without specific prior written permission.

   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

/*! \file
 * \brief MPD client library
 *
 * Do not include this header directly.  Use mpd/client.h instead.
 */

#ifndef MPD_DIRECTORY_H
#define MPD_DIRECTORY_H

#include <mpd/compiler.h>

#include <stdbool.h>

struct mpd_pair;
struct mpd_connection;

/**
 * \struct mpd_directory
 *
 * An opaque directory object.  This is a container for more songs,
 * directories or playlists.
 */
struct mpd_directory;

#ifdef __cplusplus
extern "C" {
#endif

/**
 * Duplicates a #mpd_directory object.
 *
 * @return the new object, or NULL on out of memory
 */
mpd_malloc
struct mpd_directory *
mpd_directory_dup(const struct mpd_directory *directory);

/**
 * Free memory allocated by the #mpd_directory object.
 */
void mpd_directory_free(struct mpd_directory *directory);

/**
 * Returns the path of this directory, relative to the MPD music
 * directory.  It does not begin with a slash.
 */
mpd_pure
const char *
mpd_directory_get_path(const struct mpd_directory *directory);

/**
 * Begins parsing a new directory.
 *
 * @param pair the first pair in this directory (name must be "directory")
 * @return the new #mpd_entity object, or NULL on error (out of
 * memory, or pair name is not "directory")
 */
mpd_malloc
struct mpd_directory *
mpd_directory_begin(const struct mpd_pair *pair);

/**
 * Parses the pair, adding its information to the specified
 * #mpd_directory object.
 *
 * @return true if the pair was parsed and added to the directory (or if
 * the pair was not understood and ignored), false if this pair is the
 * beginning of the next directory
 */
bool
mpd_directory_feed(struct mpd_directory *directory,
               const struct mpd_pair *pair);

/**
 * Receives the next directory from the MPD server.
 *
 * @return a #mpd_directory object, or NULL on error or if the directory list is
 * finished
 */
mpd_malloc
struct mpd_directory *
mpd_recv_directory(struct mpd_connection *connection);

#ifdef __cplusplus
}
#endif

#endif

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