ddidderr/zstd-rs
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create command --fast[=#]

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access negative compression levels from command line
for both compression and benchmark modes.

also : ensure proper propagation of parameters
through ZSTD_compress_generic() interface.

added relevant cli tests.
This commit is contained in:
Yann Collet
2018-03-11 20:01:23 -07:00
parent a146ee04ae
commit 6a9b41b731
8 changed files with 111 additions and 52 deletions
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programs/fileio.c
+3 -1
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@@ -420,6 +420,7 @@ static cRess_t FIO_createCResources(const char* dictFileName, int cLevel,
cRess_t ress;
memset(&ress, 0, sizeof(ress));
DISPLAYLEVEL(6, "FIO_createCResources \n");
ress.cctx = ZSTD_createCCtx();
if (ress.cctx == NULL)
EXM_THROW(30, "allocation error : can't create ZSTD_CCtx");
@@ -440,7 +441,7 @@ static cRess_t FIO_createCResources(const char* dictFileName, int cLevel,
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_dictIDFlag, g_dictIDFlag) );
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_checksumFlag, g_checksumFlag) );
/* compression level */
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_compressionLevel, cLevel) );
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_compressionLevel, (unsigned)cLevel) );
/* long distance matching */
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_enableLongDistanceMatching, g_ldmFlag) );
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_p_ldmHashLog, g_ldmHashLog) );
@@ -908,6 +909,7 @@ static int FIO_compressFilename_dstFile(cRess_t ress,
stat_t statbuf;
int stat_result = 0;
DISPLAYLEVEL(6, "FIO_compressFilename_dstFile: opening dst: %s", dstFileName);
ress.dstFile = FIO_openDstFile(dstFileName);
if (ress.dstFile==NULL) return 1; /* could not open dstFileName */
/* Must ony be added after FIO_openDstFile() succeeds.