compress_zstd.h (1629B)
1 /* Copyright (c) 2003, Roger Dingledine 2 * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. 3 * Copyright (c) 2007-2021, The Tor Project, Inc. */ 4 /* See LICENSE for licensing information */ 5 6 /** 7 * \file compress_zstd.h 8 * \brief Header for compress_zstd.c 9 **/ 10 11 #ifndef TOR_COMPRESS_ZSTD_H 12 #define TOR_COMPRESS_ZSTD_H 13 14 int tor_zstd_method_supported(void); 15 16 const char *tor_zstd_get_version_str(void); 17 18 const char *tor_zstd_get_header_version_str(void); 19 20 int tor_zstd_can_use_static_apis(void); 21 22 /** Internal state for an incremental Zstandard compression/decompression. */ 23 typedef struct tor_zstd_compress_state_t tor_zstd_compress_state_t; 24 25 tor_zstd_compress_state_t * 26 tor_zstd_compress_new(int compress, 27 compress_method_t method, 28 compression_level_t compression_level); 29 30 tor_compress_output_t 31 tor_zstd_compress_process(tor_zstd_compress_state_t *state, 32 char **out, size_t *out_len, 33 const char **in, size_t *in_len, 34 int finish); 35 36 void tor_zstd_compress_free_(tor_zstd_compress_state_t *state); 37 #define tor_zstd_compress_free(st) \ 38 FREE_AND_NULL(tor_zstd_compress_state_t, \ 39 tor_zstd_compress_free_, (st)) 40 41 size_t tor_zstd_compress_state_size(const tor_zstd_compress_state_t *state); 42 43 size_t tor_zstd_get_total_allocation(void); 44 45 void tor_zstd_init(void); 46 void tor_zstd_warn_if_version_mismatched(void); 47 48 #ifdef TOR_UNIT_TESTS 49 void tor_zstd_set_static_apis_disabled_for_testing(int disabled); 50 #endif 51 52 #endif /* !defined(TOR_COMPRESS_ZSTD_H) */