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Merge pull request #2752 from facebook/hashLog3max

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make ZSTD_HASHLOG3_MAX private
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Yann Collet 2021-08-20 12:51:17 -07:00 committed by GitHub
commit 18a20b3ad7
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2 changed files with 15 additions and 6 deletions
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16
lib/compress/zstd_compress.c
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@ -42,6 +42,18 @@
# define ZSTD_COMPRESS_HEAPMODE 0 # define ZSTD_COMPRESS_HEAPMODE 0
#endif #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 * Helper functions
@ -3732,9 +3744,9 @@ static size_t ZSTD_compressBlock_splitBlock(ZSTD_CCtx* zc,
} }
/* ZSTD_convertBlockSequencesToSeqStore() /* 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. * the seqStore of a cctx.
* *
* Returns 0 on success, ZSTD_error on failure. * Returns 0 on success, ZSTD_error on failure.
*/ */
static UNUSED_ATTR size_t ZSTD_convertBlockSequencesToSeqStore(ZSTD_CCtx* cctx, static UNUSED_ATTR size_t ZSTD_convertBlockSequencesToSeqStore(ZSTD_CCtx* cctx,

5
lib/zstd.h
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@ -1157,9 +1157,6 @@ ZSTDLIB_API size_t ZSTD_sizeof_DDict(const ZSTD_DDict* ddict);
#define ZSTD_SRCSIZEHINT_MIN 0 #define ZSTD_SRCSIZEHINT_MIN 0
#define ZSTD_SRCSIZEHINT_MAX INT_MAX #define ZSTD_SRCSIZEHINT_MAX INT_MAX
/* internal */
#define ZSTD_HASHLOG3_MAX 17
/* --- Advanced types --- */ /* --- Advanced types --- */
@ -2225,7 +2222,7 @@ size_t ZSTD_initCStream_advanced(ZSTD_CStream* zcs,
* This function is DEPRECATED, and equivalent to: * This function is DEPRECATED, and equivalent to:
* ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only); * ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only);
* ZSTD_CCtx_refCDict(zcs, cdict); * ZSTD_CCtx_refCDict(zcs, cdict);
* *
* note : cdict will just be referenced, and must outlive compression session * note : cdict will just be referenced, and must outlive compression session
* This prototype will generate compilation warnings. * This prototype will generate compilation warnings.
*/ */