[linux-block.git] / tools / perf / util / compress.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef PERF_COMPRESS_H
#define PERF_COMPRESS_H

#include <stdbool.h>
#include <stddef.h>
#include <sys/types.h>
#ifdef HAVE_ZSTD_SUPPORT
#include <zstd.h>
#endif

#ifdef HAVE_ZLIB_SUPPORT
int gzip_decompress_to_file(const char *input, int output_fd);
bool gzip_is_compressed(const char *input);
#endif

#ifdef HAVE_LZMA_SUPPORT
int lzma_decompress_to_file(const char *input, int output_fd);
bool lzma_is_compressed(const char *input);
#endif

struct zstd_data {
#ifdef HAVE_ZSTD_SUPPORT
	ZSTD_CStream	*cstream;
	ZSTD_DStream	*dstream;
	int comp_level;
#endif
};

#ifdef HAVE_ZSTD_SUPPORT

int zstd_init(struct zstd_data *data, int level);
int zstd_fini(struct zstd_data *data);

ssize_t zstd_compress_stream_to_records(struct zstd_data *data, void *dst, size_t dst_size,
				       void *src, size_t src_size, size_t max_record_size,
				       size_t process_header(void *record, size_t increment));

size_t zstd_decompress_stream(struct zstd_data *data, void *src, size_t src_size,
			      void *dst, size_t dst_size);
#else /* !HAVE_ZSTD_SUPPORT */

static inline int zstd_init(struct zstd_data *data __maybe_unused, int level __maybe_unused)
{
	return 0;
}

static inline int zstd_fini(struct zstd_data *data __maybe_unused)
{
	return 0;
}

static inline
ssize_t zstd_compress_stream_to_records(struct zstd_data *data __maybe_unused,
				       void *dst __maybe_unused, size_t dst_size __maybe_unused,
				       void *src __maybe_unused, size_t src_size __maybe_unused,
				       size_t max_record_size __maybe_unused,
				       size_t process_header(void *record, size_t increment) __maybe_unused)
{
	return 0;
}

static inline size_t zstd_decompress_stream(struct zstd_data *data __maybe_unused, void *src __maybe_unused,
					    size_t src_size __maybe_unused, void *dst __maybe_unused,
					    size_t dst_size __maybe_unused)
{
	return 0;
}
#endif

#endif /* PERF_COMPRESS_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
611f0afe ACM	2	#ifndef PERF_COMPRESS_H
	3	#define PERF_COMPRESS_H
	4
f24c1d75	5	#include <stdbool.h>
5940a20a IR	6	#include <stddef.h>
5940a20a IR	7	#include <sys/types.h>
f24c1d75 AB	8	#ifdef HAVE_ZSTD_SUPPORT
	9	#include <zstd.h>
	10	#endif
	11
611f0afe ACM	12	#ifdef HAVE_ZLIB_SUPPORT
611f0afe ACM	13	int gzip_decompress_to_file(const char *input, int output_fd);
8b42b7e5	14	bool gzip_is_compressed(const char *input);
611f0afe ACM	15	#endif
	16
	17	#ifdef HAVE_LZMA_SUPPORT
	18	int lzma_decompress_to_file(const char *input, int output_fd);
8b42b7e5	19	bool lzma_is_compressed(const char *input);
611f0afe ACM	20	#endif
611f0afe ACM	21
f24c1d75 AB	22	struct zstd_data {
	23	#ifdef HAVE_ZSTD_SUPPORT
	24	ZSTD_CStream *cstream;
cb62c6f1	25	ZSTD_DStream *dstream;
5940a20a	26	int comp_level;
f24c1d75 AB	27	#endif
	28	};
	29
	30	#ifdef HAVE_ZSTD_SUPPORT
	31
	32	int zstd_init(struct zstd_data *data, int level);
	33	int zstd_fini(struct zstd_data *data);
	34
5940a20a	35	ssize_t zstd_compress_stream_to_records(struct zstd_data data, void dst, size_t dst_size,
f24c1d75 AB	36	void *src, size_t src_size, size_t max_record_size,
f24c1d75 AB	37	size_t process_header(void *record, size_t increment));
cb62c6f1 AB	38
	39	size_t zstd_decompress_stream(struct zstd_data data, void src, size_t src_size,
	40	void *dst, size_t dst_size);
f24c1d75 AB	41	#else /* !HAVE_ZSTD_SUPPORT */
	42
	43	static inline int zstd_init(struct zstd_data *data __maybe_unused, int level __maybe_unused)
	44	{
	45	return 0;
	46	}
	47
	48	static inline int zstd_fini(struct zstd_data *data __maybe_unused)
	49	{
	50	return 0;
	51	}
	52
	53	static inline
5940a20a	54	ssize_t zstd_compress_stream_to_records(struct zstd_data *data __maybe_unused,
f24c1d75 AB	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	}
cb62c6f1 AB	62
	63	static 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	}
f24c1d75 AB	69	#endif
f24c1d75 AB	70
611f0afe	71	#endif /* PERF_COMPRESS_H */