/* the Music Player Daemon (MPD) * Copyright (C) 2008 Viliam Mateicka <viliam.mateicka@gmail.com> * 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_ARCHIVE_API_H #define MPD_ARCHIVE_API_H /* * This is the public API which is used by archive plugins to * provide transparent archive decompression layer for mpd * */ #include "archive_internal.h" #include "input_stream.h" #include <stdbool.h> struct archive_file; struct archive_plugin { const char *name; /** * optional, set this to NULL if the archive plugin doesn't * have/need one this must false if there is an error and * true otherwise */ bool (*init)(void); /** * optional, set this to NULL if the archive plugin doesn't * have/need one */ void (*finish)(void); /** * tryes to open archive file and associates handle with archive * returns pointer to handle used is all operations with this archive * or NULL when opening fails */ struct archive_file *(*open)(char * pathname); /** * reset routine will move current read index in archive to default * position and then the filenames from archives can be read * via scan_next routine */ void (*scan_reset)(struct archive_file *); /** * the read method will return corresponding files from archive * (as pathnames) and move read index to next file. When there is no * next file it return NULL. */ char *(*scan_next)(struct archive_file *); /** * this is used to setup input stream handle, to be able to read * from archive. open method of inputstream can be the used to * extract particular file */ void (*setup_stream)(struct archive_file *, struct input_stream *is); /** * closes archive file. */ void (*close)(struct archive_file *); /** * suffixes handled by this plugin. * last element in these arrays must always be a NULL */ const char *const*suffixes; }; bool archive_lookup(char *pathname, char **archive, char **inpath, char **suffix); #endif