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 13 int gzip_decompress_to_file(const char *input, int output_fd); 14 bool gzip_is_compressed(const char *input); 15 #endif 16 17 #ifdef HAVE_LZMA_SUPPORT 18 int lzma_decompress_to_file(const char *input, int output_fd); 19 bool lzma_is_compressed(const char *input); 20 #endif 21 22 struct 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 32 int zstd_init(struct zstd_data *data, int level); 33 int zstd_fini(struct zstd_data *data); 34 35 ssize_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 39 size_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 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 54 ssize_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 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 } 69 #endif 70 71 #endif /* PERF_COMPRESS_H */ 72