| 1 |
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| 2 | #ifndef DECOMPRESSOR_H
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| 3 | #define DECOMPRESSOR_H
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| 4 | |
| 5 | * Squashfs - a compressed read only filesystem for Linux
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| 6 | *
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| 7 | * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
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| 8 | * Phillip Lougher <[email protected]>
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| 9 | *
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| 10 | * decompressor.h
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| 11 |
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| 12 |
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| 13 | #include <linux/bio.h>
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| 14 |
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| 15 | struct squashfs_decompressor {
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| 16 | void *(*init)(struct squashfs_sb_info *, void *);
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| 17 | void *(*comp_opts)(struct squashfs_sb_info *, void *, int);
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| 18 | void (*free)(void *);
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| 19 | int (*decompress)(struct squashfs_sb_info *, void *,
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| 20 | struct bio *, int, int, struct squashfs_page_actor *);
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| 21 | int id;
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| 22 | char *name;
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| 23 | int alloc_buffer;
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| 24 | int supported;
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| 25 | };
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| 26 |
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| 27 | static inline void *squashfs_comp_opts(struct squashfs_sb_info *msblk,
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| 28 | void *buff, int length)
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| 29 | {
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| 30 | return msblk->decompressor->comp_opts ?
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| 31 | msblk->decompressor->comp_opts(msblk, buff, length) : NULL;
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| 32 | }
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| 33 |
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| 34 | #ifdef CONFIG_SQUASHFS_XZ
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| 35 | extern const struct squashfs_decompressor squashfs_xz_comp_ops;
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| 36 | #endif
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| 37 |
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| 38 | #ifdef CONFIG_SQUASHFS_LZ4
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| 39 | extern const struct squashfs_decompressor squashfs_lz4_comp_ops;
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| 40 | #endif
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| 41 |
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| 42 | #ifdef CONFIG_SQUASHFS_LZO
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| 43 | extern const struct squashfs_decompressor squashfs_lzo_comp_ops;
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| 44 | #endif
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| 45 |
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| 46 | #ifdef CONFIG_SQUASHFS_ZLIB
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| 47 | extern const struct squashfs_decompressor squashfs_zlib_comp_ops;
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| 48 | #endif
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| 49 |
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| 50 | #ifdef CONFIG_SQUASHFS_ZSTD
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| 51 | extern const struct squashfs_decompressor squashfs_zstd_comp_ops;
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| 52 | #endif
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| 53 |
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| 54 | #endif
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