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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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12
lib/compress/zstd_compress.c
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@ -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

3
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_MAX INT_MAX
/* internal */
#define ZSTD_HASHLOG3_MAX 17
/* --- Advanced types --- */