compress.h 1.8 KB

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