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/*
* 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.
*/
#ifndef MPD_ARCHIVE_PLUGIN_H
#define MPD_ARCHIVE_PLUGIN_H
#include <stdbool.h>
struct input_stream;
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 *);
/**
* Opens an input_stream of a file within the archive.
*
* If this function succeeds, then the #input_stream "owns"
* the archive file and will automatically close it.
*
* @param path the path within the archive
*/
bool (*open_stream)(struct archive_file *, struct input_stream *is,
const char *path);
/**
* 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;
};
#endif
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