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Add long distance matching as a CCtxParam

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This commit is contained in:
Stella Lau
2017-09-01 09:18:58 -07:00
parent 6a546efb8c
commit 8081becadc
8 changed files with 64 additions and 42 deletions
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tests/fuzzer.c
+3 -2
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@@ -440,6 +440,8 @@ static int basicUnitTests(U32 seed, double compressibility)
free(staticDCtxBuffer);
}
/* ZSTDMT simple MT compression test */
DISPLAYLEVEL(4, "test%3i : create ZSTDMT CCtx : ", testNb++);
{ ZSTDMT_CCtx* mtctx = ZSTDMT_createCCtx(2);
@@ -1340,7 +1342,7 @@ static int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, U32 const maxD
dictSize = FUZ_rLogLength(&lseed, dictLog); /* needed also for decompression */
dict = srcBuffer + (FUZ_rand(&lseed) % (srcBufferSize - dictSize));
CHECK_Z ( ZSTD_CCtx_setParameter(refCtx, ZSTD_p_longDistanceMatching, FUZ_rand(&lseed)&255) );
if (FUZ_rand(&lseed) & 0xF) {
CHECK_Z ( ZSTD_compressBegin_usingDict(refCtx, dict, dictSize, cLevel) );
} else {
@@ -1349,7 +1351,6 @@ static int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, U32 const maxD
!(FUZ_rand(&lseed)&3) /* contentChecksumFlag*/,
0 /*NodictID*/ }; /* note : since dictionary is fake, dictIDflag has no impact */
ZSTD_parameters const p = FUZ_makeParams(cPar, fPar);
CHECK_Z ( ZSTD_compressBegin_advanced(refCtx, dict, dictSize, p, 0) );
}
CHECK_Z( ZSTD_copyCCtx(ctx, refCtx, 0) );
tests/zstreamtest.c
+1 -1
View File
@@ -1380,7 +1380,7 @@ static int fuzzerTests_newAPI(U32 seed, U32 nbTests, unsigned startTest, double
if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_p_minMatch, cParams.searchLength, useOpaqueAPI) );
if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_p_targetLength, cParams.targetLength, useOpaqueAPI) );
if (FUZ_rand(&lseed) & 1) CHECK_Z( ZSTD_CCtx_setParameter(zc, ZSTD_p_longDistanceMatching, FUZ_rand(&lseed) & 63) );
if (FUZ_rand(&lseed) & 1) CHECK_Z( setCCtxParameter(zc, cctxParams, ZSTD_p_longDistanceMatching, FUZ_rand(&lseed) & 63, useOpaqueAPI) );
/* unconditionally set, to be sync with decoder */
/* mess with frame parameters */