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Merge pull request #1549 from terrelln/ref-cdict-free

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[libzstd] Free local cdict when referencing cdict
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Nick Terrell 2019-03-13 16:08:54 -07:00 committed by GitHub
commit ea3b81f02c
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1 changed files with 3 additions and 0 deletions
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lib/compress/zstd_compress.c
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@ -839,6 +839,9 @@ ZSTDLIB_API size_t ZSTD_CCtx_loadDictionary(ZSTD_CCtx* cctx, const void* dict, s
size_t ZSTD_CCtx_refCDict(ZSTD_CCtx* cctx, const ZSTD_CDict* cdict) size_t ZSTD_CCtx_refCDict(ZSTD_CCtx* cctx, const ZSTD_CDict* cdict)
{ {
RETURN_ERROR_IF(cctx->streamStage != zcss_init, stage_wrong); RETURN_ERROR_IF(cctx->streamStage != zcss_init, stage_wrong);
/* Free the existing local cdict (if any) to save memory. */
FORWARD_IF_ERROR( ZSTD_freeCDict(cctx->cdictLocal) );
cctx->cdictLocal = NULL;
cctx->cdict = cdict; cctx->cdict = cdict;
memset(&cctx->prefixDict, 0, sizeof(cctx->prefixDict)); /* exclusive */ memset(&cctx->prefixDict, 0, sizeof(cctx->prefixDict)); /* exclusive */
return 0; return 0;