ddidderr/zstd-rs
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fixed : Visual build compressing stdin with multi-threading enabled fails

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It was multiple reasons stacked :
- Visual use a different code path, because ZSTD_NEWAPI is not defined
- fileio.c sends `0` as `pledgedSrcSize` to mean `ZSTD_CONTENTSIZE_UNKNOWN`  (fixed)
- ZSTDMT_resetCCtx() interpreted `0` as "empty" instead of "unknown" (fixed)
This commit is contained in:
Yann Collet
2017-10-17 14:07:43 -07:00
parent 13bfe885aa
commit 32c9f715ae
4 changed files with 10 additions and 7 deletions
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lib/compress/zstdmt_compress.c
+4 -1
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@@ -838,9 +838,12 @@ size_t ZSTDMT_initCStream_usingCDict(ZSTDMT_CCtx* mtctx,
/* ZSTDMT_resetCStream() :
* pledgedSrcSize is optional and can be zero == unknown */
* pledgedSrcSize can be zero == unknown (for the time being)
* prefer using ZSTD_CONTENTSIZE_UNKNOWN,
* as `0` might mean "empty" in the future */
size_t ZSTDMT_resetCStream(ZSTDMT_CCtx* zcs, unsigned long long pledgedSrcSize)
{
if (!pledgedSrcSize) pledgedSrcSize = ZSTD_CONTENTSIZE_UNKNOWN;
if (zcs->params.nbThreads==1)
return ZSTD_resetCStream(zcs->cctxPool->cctx[0], pledgedSrcSize);
return ZSTDMT_initCStream_internal(zcs, NULL, 0, ZSTD_dm_auto, 0, zcs->params,
lib/compress/zstdmt_compress.h
+1 -1
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@@ -50,7 +50,7 @@ ZSTDLIB_API size_t ZSTDMT_compressCCtx(ZSTDMT_CCtx* mtctx,
/* === Streaming functions === */
ZSTDLIB_API size_t ZSTDMT_initCStream(ZSTDMT_CCtx* mtctx, int compressionLevel);
ZSTDLIB_API size_t ZSTDMT_resetCStream(ZSTDMT_CCtx* mtctx, unsigned long long pledgedSrcSize); /**< pledgedSrcSize is optional and can be zero == unknown */
ZSTDLIB_API size_t ZSTDMT_resetCStream(ZSTDMT_CCtx* mtctx, unsigned long long pledgedSrcSize); /**< if srcSize is not known at reset time, use ZSTD_CONTENTSIZE_UNKNOWN. Note: for compatibility with older programs, 0 means the same as ZSTD_CONTENTSIZE_UNKNOWN, but it may change in the future, to mean "empty" */
ZSTDLIB_API size_t ZSTDMT_compressStream(ZSTDMT_CCtx* mtctx, ZSTD_outBuffer* output, ZSTD_inBuffer* input);
programs/Makefile
+2 -2
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@@ -37,8 +37,8 @@ endif
CPPFLAGS+= -I$(ZSTDDIR) -I$(ZSTDDIR)/common -I$(ZSTDDIR)/compress \
-I$(ZSTDDIR)/dictBuilder \
-DZSTD_NEWAPI \
-DXXH_NAMESPACE=ZSTD_ # because xxhash.o already compiled with this macro from library
-DXXH_NAMESPACE=ZSTD_ \
-DZSTD_NEWAPI
CFLAGS ?= -O3
DEBUGFLAGS+=-Wall -Wextra -Wcast-qual -Wcast-align -Wshadow \
-Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement \
programs/fileio.c
+3 -3
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@@ -817,11 +817,11 @@ static int FIO_compressFilename_internal(cRess_t ress,
/* init */
#ifdef ZSTD_NEWAPI
if (fileSize!=0) /* when src is stdin, fileSize==0, but is effectively unknown */
ZSTD_CCtx_setPledgedSrcSize(ress.cctx, fileSize); /* note : fileSize==0 means "empty" */
ZSTD_CCtx_setPledgedSrcSize(ress.cctx, fileSize);
#elif defined(ZSTD_MULTITHREAD)
CHECK( ZSTDMT_resetCStream(ress.cctx, fileSize) ); /* note : fileSize==0 means "unknown" */
CHECK( ZSTDMT_resetCStream(ress.cctx, fileSize ? fileSize : ZSTD_CONTENTSIZE_UNKNOWN) );
#else
CHECK( ZSTD_resetCStream(ress.cctx, fileSize) ); /* note : fileSize==0 means "unknown" */
CHECK( ZSTD_resetCStream(ress.cctx, fileSize ? fileSize : ZSTD_CONTENTSIZE_UNKNOWN) );
#endif
/* Main compression loop */