| #ifndef DECOMPRESSOR_H |
| #define DECOMPRESSOR_H |
| /* |
| * Squashfs - a compressed read only filesystem for Linux |
| * |
| * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
| * Phillip Lougher <phillip@squashfs.org.uk> |
| * |
| * 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, |
| * 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| * |
| * decompressor.h |
| */ |
| |
| struct squashfs_decompressor { |
| void *(*init)(struct squashfs_sb_info *, void *); |
| void *(*comp_opts)(struct squashfs_sb_info *, void *, int); |
| void (*free)(void *); |
| int (*decompress)(struct squashfs_sb_info *, void *, |
| struct buffer_head **, int, int, int, |
| struct squashfs_page_actor *); |
| int id; |
| char *name; |
| int supported; |
| }; |
| |
| static inline void *squashfs_comp_opts(struct squashfs_sb_info *msblk, |
| void *buff, int length) |
| { |
| return msblk->decompressor->comp_opts ? |
| msblk->decompressor->comp_opts(msblk, buff, length) : NULL; |
| } |
| |
| #ifdef CONFIG_SQUASHFS_XZ |
| extern const struct squashfs_decompressor squashfs_xz_comp_ops; |
| #endif |
| |
| #ifdef CONFIG_SQUASHFS_LZ4 |
| extern const struct squashfs_decompressor squashfs_lz4_comp_ops; |
| #endif |
| |
| #ifdef CONFIG_SQUASHFS_LZO |
| extern const struct squashfs_decompressor squashfs_lzo_comp_ops; |
| #endif |
| |
| #ifdef CONFIG_SQUASHFS_ZLIB |
| extern const struct squashfs_decompressor squashfs_zlib_comp_ops; |
| #endif |
| |
| #ifdef CONFIG_SQUASHFS_ZSTD |
| extern const struct squashfs_decompressor squashfs_zstd_comp_ops; |
| #endif |
| |
| #endif |