1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef PERF_COMPRESS_H
3#define PERF_COMPRESS_H
4
5#include <stdbool.h>
6#include <stddef.h>
7#include <sys/types.h>
8#ifdef HAVE_ZSTD_SUPPORT
9#include <zstd.h>
10#endif
11
12#ifdef HAVE_ZLIB_SUPPORT
13int gzip_decompress_to_file(const char *input, int output_fd);
14bool gzip_is_compressed(const char *input);
15#endif
16
17#ifdef HAVE_LZMA_SUPPORT
18int lzma_decompress_to_file(const char *input, int output_fd);
19bool lzma_is_compressed(const char *input);
20#endif
21
22struct zstd_data {
23#ifdef HAVE_ZSTD_SUPPORT
24	ZSTD_CStream	*cstream;
25	ZSTD_DStream	*dstream;
26	int comp_level;
27#endif
28};
29
30#ifdef HAVE_ZSTD_SUPPORT
31
32int zstd_init(struct zstd_data *data, int level);
33int zstd_fini(struct zstd_data *data);
34
35ssize_t zstd_compress_stream_to_records(struct zstd_data *data, void *dst, size_t dst_size,
36				       void *src, size_t src_size, size_t max_record_size,
37				       size_t process_header(void *record, size_t increment));
38
39size_t zstd_decompress_stream(struct zstd_data *data, void *src, size_t src_size,
40			      void *dst, size_t dst_size);
41#else /* !HAVE_ZSTD_SUPPORT */
42
43static inline int zstd_init(struct zstd_data *data __maybe_unused, int level __maybe_unused)
44{
45	return 0;
46}
47
48static inline int zstd_fini(struct zstd_data *data __maybe_unused)
49{
50	return 0;
51}
52
53static inline
54ssize_t zstd_compress_stream_to_records(struct zstd_data *data __maybe_unused,
55				       void *dst __maybe_unused, size_t dst_size __maybe_unused,
56				       void *src __maybe_unused, size_t src_size __maybe_unused,
57				       size_t max_record_size __maybe_unused,
58				       size_t process_header(void *record, size_t increment) __maybe_unused)
59{
60	return 0;
61}
62
63static inline size_t zstd_decompress_stream(struct zstd_data *data __maybe_unused, void *src __maybe_unused,
64					    size_t src_size __maybe_unused, void *dst __maybe_unused,
65					    size_t dst_size __maybe_unused)
66{
67	return 0;
68}
69#endif
70
71#endif /* PERF_COMPRESS_H */
72