|
|
tcompress-snappy.c - dedup - data deduplication program |
|
|
 |
git clone git://bitreich.org/dedup/ git://hg6vgqziawt5s4dj.onion/dedup/ (git://bitreich.org) |
|
|
 |
Log |
|
|
|
Files |
|
|
|
Refs |
|
|
|
Tags |
|
|
|
README |
|
|
|
LICENSE |
|
|
|
--- |
|
|
|
tcompress-snappy.c (965B) |
|
|
|
--- |
|
|
|
1 #include <sys/types.h> |
|
|
|
2 |
|
|
|
3 #include <err.h> |
|
|
|
4 #include <stdint.h> |
|
|
|
5 #include <string.h> |
|
|
|
6 |
|
|
|
7 #include <snappy-c.h> |
|
|
|
8 |
|
|
|
9 #include "blake2.h" |
|
|
|
10 #include "dedup.h" |
|
|
|
11 |
|
|
|
12 int |
|
|
|
13 snappy_init(struct compr_ctx *ctx) |
|
|
|
14 { |
|
|
|
15 return 0; |
|
|
|
16 } |
|
|
|
17 |
|
|
|
18 size_t |
|
|
|
19 snappy_size(struct compr_ctx *ctx, size_t n) |
|
|
|
20 { |
|
|
|
21 return snappy_max_compressed_length(n); |
|
|
|
22 } |
|
|
|
23 |
|
|
|
24 size_t |
|
|
|
25 snappy_compr(struct compr_ctx *ctx, const void *in, void *out, |
|
|
|
26 size_t insize, size_t outsize) |
|
|
|
27 { |
|
|
|
28 size_t n = outsize; |
|
|
|
29 snappy_status ret; |
|
|
|
30 |
|
|
|
31 ret = snappy_compress((char *)in, insize, (char *)out, &n); |
|
|
|
32 if (ret != SNAPPY_OK) |
|
|
|
33 errx(1, "snappy_compress failed: %d", ret); |
|
|
|
34 return n; |
|
|
|
35 } |
|
|
|
36 |
|
|
|
37 size_t |
|
|
|
38 snappy_decompr(struct compr_ctx *ctx, const void *in, void *out, |
|
|
|
39 size_t insize, size_t outsize) |
|
|
|
40 { |
|
|
|
41 size_t n = outsize; |
|
|
|
42 snappy_status ret; |
|
|
|
43 |
|
|
|
44 ret = snappy_uncompress((char *)in, insize, (char *)out, &n); |
|
|
|
45 if (ret != SNAPPY_OK) |
|
|
|
46 errx(1, "snappy_uncompress failed: %d", ret); |
|
|
|
47 return n; |
|
|
|
48 } |
|
|
|
49 |
|
|
|
50 int |
|
|
|
51 snappy_final(struct compr_ctx *ctx) |
|
|
|
52 { |
|
|
|
53 return 0; |
|
|
|
54 } |
|