ceph/src/zstd/lib/compress/zstd_opt.h

   1 /*
   2  * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
   3  * All rights reserved.
   4  *
   5  * This source code is licensed under both the BSD-style license (found in the
   6  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
   7  * in the COPYING file in the root directory of this source tree).
   8  * You may select, at your option, one of the above-listed licenses.
   9  */
  10
  11 #ifndef ZSTD_OPT_H
  12 #define ZSTD_OPT_H
  13
  14 #if defined (__cplusplus)
  15 extern "C" {
  16 #endif
  17
  18 #include "zstd_compress_internal.h"
  19
  20 /* used in ZSTD_loadDictionaryContent() */
  21 void ZSTD_updateTree(ZSTD_matchState_t* ms, const BYTE* ip, const BYTE* iend);
  22
  23 size_t ZSTD_compressBlock_btopt(
  24         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
  25         void const* src, size_t srcSize);
  26 size_t ZSTD_compressBlock_btultra(
  27         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
  28         void const* src, size_t srcSize);
  29 size_t ZSTD_compressBlock_btultra2(
  30         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
  31         void const* src, size_t srcSize);
  32
  33
  34 size_t ZSTD_compressBlock_btopt_dictMatchState(
  35         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
  36         void const* src, size_t srcSize);
  37 size_t ZSTD_compressBlock_btultra_dictMatchState(
  38         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
  39         void const* src, size_t srcSize);
  40
  41 size_t ZSTD_compressBlock_btopt_extDict(
  42         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
  43         void const* src, size_t srcSize);
  44 size_t ZSTD_compressBlock_btultra_extDict(
  45         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
  46         void const* src, size_t srcSize);
  47
  48         /* note : no btultra2 variant for extDict nor dictMatchState,
  49          * because btultra2 is not meant to work with dictionaries
  50          * and is only specific for the first block (no prefix) */
  51
  52 #if defined (__cplusplus)
  53 }
  54 #endif
  55
  56 #endif /* ZSTD_OPT_H */