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 56