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Diffstat (limited to 'src/StickerDatabase.hxx')
-rw-r--r-- | src/StickerDatabase.hxx | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/src/StickerDatabase.hxx b/src/StickerDatabase.hxx deleted file mode 100644 index 42522b7b4..000000000 --- a/src/StickerDatabase.hxx +++ /dev/null @@ -1,161 +0,0 @@ -/* - * Copyright (C) 2003-2013 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. - */ - -/* - * This is the sticker database library. It is the backend of all the - * sticker code in MPD. - * - * "Stickers" are pieces of information attached to existing MPD - * objects (e.g. song files, directories, albums). Clients can create - * arbitrary name/value pairs. MPD itself does not assume any special - * meaning in them. - * - * The goal is to allow clients to share additional (possibly dynamic) - * information about songs, which is neither stored on the client (not - * available to other clients), nor stored in the song files (MPD has - * no write access). - * - * Client developers should create a standard for common sticker - * names, to ensure interoperability. - * - * Examples: song ratings; statistics; deferred tag writes; lyrics; - * ... - * - */ - -#ifndef MPD_STICKER_DATABASE_HXX -#define MPD_STICKER_DATABASE_HXX - -#include "Compiler.h" - -#include <string> - -class Error; -class Path; -struct sticker; - -/** - * Opens the sticker database. - * - * @return true on success, false on error - */ -bool -sticker_global_init(Path path, Error &error); - -/** - * Close the sticker database. - */ -void -sticker_global_finish(void); - -/** - * Returns true if the sticker database is configured and available. - */ -gcc_const -bool -sticker_enabled(void); - -/** - * Returns one value from an object's sticker record. Returns an - * empty string if the value doesn't exist. - */ -std::string -sticker_load_value(const char *type, const char *uri, const char *name); - -/** - * Sets a sticker value in the specified object. Overwrites existing - * values. - */ -bool -sticker_store_value(const char *type, const char *uri, - const char *name, const char *value); - -/** - * Deletes a sticker from the database. All sticker values of the - * specified object are deleted. - */ -bool -sticker_delete(const char *type, const char *uri); - -/** - * Deletes a sticker value. Fails if no sticker with this name - * exists. - */ -bool -sticker_delete_value(const char *type, const char *uri, const char *name); - -/** - * Frees resources held by the sticker object. - * - * @param sticker the sticker object to be freed - */ -void -sticker_free(struct sticker *sticker); - -/** - * Determines a single value in a sticker. - * - * @param sticker the sticker object - * @param name the name of the sticker - * @return the sticker value, or nullptr if none was found - */ -gcc_pure -const char * -sticker_get_value(const struct sticker &sticker, const char *name); - -/** - * Iterates over all sticker items in a sticker. - * - * @param sticker the sticker object - * @param func a callback function - * @param user_data an opaque pointer for the callback function - */ -void -sticker_foreach(const struct sticker &sticker, - void (*func)(const char *name, const char *value, - void *user_data), - void *user_data); - -/** - * Loads the sticker for the specified resource. - * - * @param type the resource type, e.g. "song" - * @param uri the URI of the resource, e.g. the song path - * @return a sticker object, or nullptr on error or if there is no sticker - */ -struct sticker * -sticker_load(const char *type, const char *uri); - -/** - * Finds stickers with the specified name below the specified URI. - * - * @param type the resource type, e.g. "song" - * @param base_uri the URI prefix of the resources, or nullptr if all - * resources should be searched - * @param name the name of the sticker - * @return true on success (even if no sticker was found), false on - * failure - */ -bool -sticker_find(const char *type, const char *base_uri, const char *name, - void (*func)(const char *uri, const char *value, - void *user_data), - void *user_data); - -#endif |