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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
c2f1db8f | 2 | #pragma once |
e4e61fdb LP |
3 | |
4 | /*** | |
e4e61fdb | 5 | Copyright 2011 Lennart Poettering |
e4e61fdb LP |
6 | ***/ |
7 | ||
355b59e2 | 8 | #include <unistd.h> |
e4e61fdb | 9 | |
d89c8fdf | 10 | #include "journal-def.h" |
e4e61fdb | 11 | |
d89c8fdf ZJS |
12 | const char* object_compressed_to_string(int compression); |
13 | int object_compressed_from_string(const char *compression); | |
e4e61fdb | 14 | |
5d6f46b6 ZJS |
15 | int compress_blob_xz(const void *src, uint64_t src_size, |
16 | void *dst, size_t dst_alloc_size, size_t *dst_size); | |
17 | int compress_blob_lz4(const void *src, uint64_t src_size, | |
18 | void *dst, size_t dst_alloc_size, size_t *dst_size); | |
355b59e2 | 19 | |
5d6f46b6 ZJS |
20 | static inline int compress_blob(const void *src, uint64_t src_size, |
21 | void *dst, size_t dst_alloc_size, size_t *dst_size) { | |
d89c8fdf | 22 | int r; |
349cc4a5 | 23 | #if HAVE_LZ4 |
5d6f46b6 | 24 | r = compress_blob_lz4(src, src_size, dst, dst_alloc_size, dst_size); |
d89c8fdf ZJS |
25 | if (r == 0) |
26 | return OBJECT_COMPRESSED_LZ4; | |
27 | #else | |
5d6f46b6 | 28 | r = compress_blob_xz(src, src_size, dst, dst_alloc_size, dst_size); |
d89c8fdf ZJS |
29 | if (r == 0) |
30 | return OBJECT_COMPRESSED_XZ; | |
31 | #endif | |
32 | return r; | |
33 | } | |
34 | ||
35 | int decompress_blob_xz(const void *src, uint64_t src_size, | |
fa1c4b51 | 36 | void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max); |
d89c8fdf | 37 | int decompress_blob_lz4(const void *src, uint64_t src_size, |
fa1c4b51 | 38 | void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max); |
d89c8fdf ZJS |
39 | int decompress_blob(int compression, |
40 | const void *src, uint64_t src_size, | |
fa1c4b51 | 41 | void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max); |
d89c8fdf ZJS |
42 | |
43 | int decompress_startswith_xz(const void *src, uint64_t src_size, | |
fa1c4b51 ZJS |
44 | void **buffer, size_t *buffer_size, |
45 | const void *prefix, size_t prefix_len, | |
d89c8fdf ZJS |
46 | uint8_t extra); |
47 | int decompress_startswith_lz4(const void *src, uint64_t src_size, | |
fa1c4b51 ZJS |
48 | void **buffer, size_t *buffer_size, |
49 | const void *prefix, size_t prefix_len, | |
d89c8fdf ZJS |
50 | uint8_t extra); |
51 | int decompress_startswith(int compression, | |
52 | const void *src, uint64_t src_size, | |
fa1c4b51 ZJS |
53 | void **buffer, size_t *buffer_size, |
54 | const void *prefix, size_t prefix_len, | |
d89c8fdf ZJS |
55 | uint8_t extra); |
56 | ||
59f448cf LP |
57 | int compress_stream_xz(int fdf, int fdt, uint64_t max_bytes); |
58 | int compress_stream_lz4(int fdf, int fdt, uint64_t max_bytes); | |
d89c8fdf | 59 | |
59f448cf LP |
60 | int decompress_stream_xz(int fdf, int fdt, uint64_t max_size); |
61 | int decompress_stream_lz4(int fdf, int fdt, uint64_t max_size); | |
d89c8fdf | 62 | |
349cc4a5 | 63 | #if HAVE_LZ4 |
d89c8fdf ZJS |
64 | # define compress_stream compress_stream_lz4 |
65 | # define COMPRESSED_EXT ".lz4" | |
66 | #else | |
67 | # define compress_stream compress_stream_xz | |
68 | # define COMPRESSED_EXT ".xz" | |
69 | #endif | |
70 | ||
59f448cf | 71 | int decompress_stream(const char *filename, int fdf, int fdt, uint64_t max_bytes); |