| Phillip Lougher | 4c0f0bb | 2009-10-06 04:04:15 +0100 | [diff] [blame] | 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 |
| 7 | * Phillip Lougher <phillip@lougher.demon.co.uk> |
| 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 { |
| 27 | void *(*init)(struct squashfs_sb_info *); |
| 28 | void (*free)(void *); |
| 29 | int (*decompress)(struct squashfs_sb_info *, void **, |
| 30 | struct buffer_head **, int, int, int, int, int); |
| 31 | int id; |
| 32 | char *name; |
| 33 | int supported; |
| 34 | }; |
| 35 | |
| 36 | static inline void *squashfs_decompressor_init(struct squashfs_sb_info *msblk) |
| 37 | { |
| 38 | return msblk->decompressor->init(msblk); |
| 39 | } |
| 40 | |
| 41 | static inline void squashfs_decompressor_free(struct squashfs_sb_info *msblk, |
| 42 | void *s) |
| 43 | { |
| 44 | if (msblk->decompressor) |
| 45 | msblk->decompressor->free(s); |
| 46 | } |
| 47 | |
| 48 | static inline int squashfs_decompress(struct squashfs_sb_info *msblk, |
| 49 | void **buffer, struct buffer_head **bh, int b, int offset, int length, |
| 50 | int srclength, int pages) |
| 51 | { |
| 52 | return msblk->decompressor->decompress(msblk, buffer, bh, b, offset, |
| 53 | length, srclength, pages); |
| 54 | } |
| 55 | #endif |