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make ZSTD_HASHLOG3_MAX private #2752

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Aug 20, 2021
Merged

make ZSTD_HASHLOG3_MAX private #2752

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16 changes: 14 additions & 2 deletions lib/compress/zstd_compress.c
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,18 @@
# define ZSTD_COMPRESS_HEAPMODE 0
#endif

/*!
* ZSTD_HASHLOG3_MAX :
* Maximum size of the hash table dedicated to find 3-bytes matches,
* in log format, aka 17 => 1 << 17 == 128Ki positions.
* This structure is only used in zstd_opt.
* Since allocation is centralized for all strategies, it has to be known here.
* The actual (selected) size of the hash table is then stored in ZSTD_matchState_t.hashLog3,
* so that zstd_opt.c doesn't need to know about this constant.
*/
#ifndef ZSTD_HASHLOG3_MAX
# define ZSTD_HASHLOG3_MAX 17
#endif

/*-*************************************
* Helper functions
Expand Down Expand Up @@ -3732,9 +3744,9 @@ static size_t ZSTD_compressBlock_splitBlock(ZSTD_CCtx* zc,
}

/* ZSTD_convertBlockSequencesToSeqStore()
* Converts an array of ZSTD_Sequence* with the corresponding original src buffer into
* Converts an array of ZSTD_Sequence* with the corresponding original src buffer into
* the seqStore of a cctx.
*
*
* Returns 0 on success, ZSTD_error on failure.
*/
static UNUSED_ATTR size_t ZSTD_convertBlockSequencesToSeqStore(ZSTD_CCtx* cctx,
Expand Down
5 changes: 1 addition & 4 deletions lib/zstd.h
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Expand Up @@ -1157,9 +1157,6 @@ ZSTDLIB_API size_t ZSTD_sizeof_DDict(const ZSTD_DDict* ddict);
#define ZSTD_SRCSIZEHINT_MIN 0
#define ZSTD_SRCSIZEHINT_MAX INT_MAX

/* internal */
#define ZSTD_HASHLOG3_MAX 17


/* --- Advanced types --- */

Expand Down Expand Up @@ -2225,7 +2222,7 @@ size_t ZSTD_initCStream_advanced(ZSTD_CStream* zcs,
* This function is DEPRECATED, and equivalent to:
* ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only);
* ZSTD_CCtx_refCDict(zcs, cdict);
*
*
* note : cdict will just be referenced, and must outlive compression session
* This prototype will generate compilation warnings.
*/
Expand Down