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