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Merge pull request #1860 from senhuang42/streaming_compression_using_cdict

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Disable reloading dictionary when there is no known srcSize
This commit is contained in:
Yann Collet
2019-10-30 16:27:58 -07:00
committed by GitHub
parent f9d867e79f b9ede1c8c2
commit 94dcce2bd8
1 changed files with 2 additions and 0 deletions
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lib/compress/zstd_compress.c
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@@ -2934,6 +2934,7 @@ static size_t ZSTD_compressBegin_internal(ZSTD_CCtx* cctx,
&& (cdict->dictContentSize > 0)
&& ( pledgedSrcSize < ZSTD_USE_CDICT_PARAMS_SRCSIZE_CUTOFF
|| pledgedSrcSize < cdict->dictContentSize * ZSTD_USE_CDICT_PARAMS_DICTSIZE_MULTIPLIER
|| pledgedSrcSize == ZSTD_CONTENTSIZE_UNKNOWN
|| cdict->compressionLevel == 0)
&& (params->attachDictPref != ZSTD_dictForceLoad) ) {
return ZSTD_resetCCtx_usingCDict(cctx, cdict, params, pledgedSrcSize, zbuff);
@@ -3381,6 +3382,7 @@ size_t ZSTD_compressBegin_usingCDict_advanced(
{ ZSTD_CCtx_params params = cctx->requestedParams;
params.cParams = ( pledgedSrcSize < ZSTD_USE_CDICT_PARAMS_SRCSIZE_CUTOFF
|| pledgedSrcSize < cdict->dictContentSize * ZSTD_USE_CDICT_PARAMS_DICTSIZE_MULTIPLIER
|| pledgedSrcSize == ZSTD_CONTENTSIZE_UNKNOWN
|| cdict->compressionLevel == 0 )
&& (params.attachDictPref != ZSTD_dictForceLoad) ?
ZSTD_getCParamsFromCDict(cdict)