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4c0f0bb2 PL |
1 | #ifndef DECOMPRESSOR_H |
2 | #define DECOMPRESSOR_H | |
3 | /* | |
4 | * Squashfs - a compressed read only filesystem for Linux | |
5 | * | |
6 | * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 | |
d7f2ff67 | 7 | * Phillip Lougher <phillip@squashfs.org.uk> |
4c0f0bb2 PL |
8 | * |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License | |
11 | * as published by the Free Software Foundation; either version 2, | |
12 | * or (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
22 | * | |
23 | * decompressor.h | |
24 | */ | |
25 | ||
26 | struct squashfs_decompressor { | |
9508c6b9 PL |
27 | void *(*init)(struct squashfs_sb_info *, void *); |
28 | void *(*comp_opts)(struct squashfs_sb_info *, void *, int); | |
4c0f0bb2 | 29 | void (*free)(void *); |
846b730e PL |
30 | int (*decompress)(struct squashfs_sb_info *, void *, |
31 | struct buffer_head **, int, int, int, | |
32 | struct squashfs_page_actor *); | |
4c0f0bb2 PL |
33 | int id; |
34 | char *name; | |
35 | int supported; | |
36 | }; | |
37 | ||
9508c6b9 PL |
38 | static inline void *squashfs_comp_opts(struct squashfs_sb_info *msblk, |
39 | void *buff, int length) | |
4c0f0bb2 | 40 | { |
9508c6b9 PL |
41 | return msblk->decompressor->comp_opts ? |
42 | msblk->decompressor->comp_opts(msblk, buff, length) : NULL; | |
4c0f0bb2 | 43 | } |
7a43ae52 PL |
44 | |
45 | #ifdef CONFIG_SQUASHFS_XZ | |
46 | extern const struct squashfs_decompressor squashfs_xz_comp_ops; | |
47 | #endif | |
48 | ||
01a678c5 PL |
49 | #ifdef CONFIG_SQUASHFS_LZO |
50 | extern const struct squashfs_decompressor squashfs_lzo_comp_ops; | |
51 | #endif | |
52 | ||
cc6d3497 PL |
53 | #ifdef CONFIG_SQUASHFS_ZLIB |
54 | extern const struct squashfs_decompressor squashfs_zlib_comp_ops; | |
55 | #endif | |
56 | ||
4c0f0bb2 | 57 | #endif |