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fuzzer : reduced stack usage

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This commit is contained in:
Yann Collet 2019-04-18 17:12:14 -07:00
parent 6cb084ed36
commit 4790994568
1 changed files with 18 additions and 18 deletions
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36
tests/fuzzer.c
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@ -881,39 +881,39 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
/* Compress HC using external dictionary stream */
FUZ_DISPLAYTEST();
{
LZ4_streamHC_t LZ4_streamHC;
LZ4_initStreamHC(&LZ4_streamHC, sizeof(LZ4_streamHC));
{ LZ4_streamHC_t* LZ4_streamHC = LZ4_createStreamHC();
LZ4_loadDictHC(LZ4dictHC, dict, dictSize);
LZ4_attach_HC_dictionary(&LZ4_streamHC, LZ4dictHC);
LZ4_setCompressionLevel (&LZ4_streamHC, compressionLevel);
blockContinueCompressedSize = LZ4_compress_HC_continue(&LZ4_streamHC, block, compressedBuffer, blockSize, (int)compressedBufferSize);
LZ4_attach_HC_dictionary(LZ4_streamHC, LZ4dictHC);
LZ4_setCompressionLevel (LZ4_streamHC, compressionLevel);
blockContinueCompressedSize = LZ4_compress_HC_continue(LZ4_streamHC, block, compressedBuffer, blockSize, (int)compressedBufferSize);
FUZ_CHECKTEST(blockContinueCompressedSize==0, "LZ4_compress_HC_continue with ExtDictCtx failed");
FUZ_CHECKTEST(LZ4_streamHC.internal_donotuse.dirty, "Context should be clean");
FUZ_CHECKTEST(LZ4_streamHC->internal_donotuse.dirty, "Context should be clean");
FUZ_DISPLAYTEST();
LZ4_resetStreamHC_fast (&LZ4_streamHC, compressionLevel);
LZ4_attach_HC_dictionary(&LZ4_streamHC, LZ4dictHC);
ret = LZ4_compress_HC_continue(&LZ4_streamHC, block, compressedBuffer, blockSize, blockContinueCompressedSize-1);
LZ4_resetStreamHC_fast (LZ4_streamHC, compressionLevel);
LZ4_attach_HC_dictionary(LZ4_streamHC, LZ4dictHC);
ret = LZ4_compress_HC_continue(LZ4_streamHC, block, compressedBuffer, blockSize, blockContinueCompressedSize-1);
FUZ_CHECKTEST(ret>0, "LZ4_compress_HC_continue using ExtDictCtx should fail : one missing byte for output buffer (%i != %i)", ret, blockContinueCompressedSize);
/* note : context is no longer dirty after a failed compressed block */
FUZ_DISPLAYTEST();
LZ4_resetStreamHC_fast (&LZ4_streamHC, compressionLevel);
LZ4_attach_HC_dictionary(&LZ4_streamHC, LZ4dictHC);
ret = LZ4_compress_HC_continue(&LZ4_streamHC, block, compressedBuffer, blockSize, blockContinueCompressedSize);
LZ4_resetStreamHC_fast (LZ4_streamHC, compressionLevel);
LZ4_attach_HC_dictionary(LZ4_streamHC, LZ4dictHC);
ret = LZ4_compress_HC_continue(LZ4_streamHC, block, compressedBuffer, blockSize, blockContinueCompressedSize);
FUZ_CHECKTEST(ret!=blockContinueCompressedSize, "LZ4_compress_HC_continue using ExtDictCtx size is different (%i != %i)", ret, blockContinueCompressedSize);
FUZ_CHECKTEST(ret<=0, "LZ4_compress_HC_continue using ExtDictCtx should work : enough size available within output buffer");
FUZ_CHECKTEST(LZ4_streamHC.internal_donotuse.dirty, "Context should be clean");
FUZ_CHECKTEST(LZ4_streamHC->internal_donotuse.dirty, "Context should be clean");
FUZ_DISPLAYTEST();
LZ4_resetStreamHC_fast (&LZ4_streamHC, compressionLevel);
LZ4_attach_HC_dictionary(&LZ4_streamHC, LZ4dictHC);
ret = LZ4_compress_HC_continue(&LZ4_streamHC, block, compressedBuffer, blockSize, blockContinueCompressedSize);
LZ4_resetStreamHC_fast (LZ4_streamHC, compressionLevel);
LZ4_attach_HC_dictionary(LZ4_streamHC, LZ4dictHC);
ret = LZ4_compress_HC_continue(LZ4_streamHC, block, compressedBuffer, blockSize, blockContinueCompressedSize);
FUZ_CHECKTEST(ret!=blockContinueCompressedSize, "LZ4_compress_HC_continue using ExtDictCtx and fast reset size is different (%i != %i)", ret, blockContinueCompressedSize);
FUZ_CHECKTEST(ret<=0, "LZ4_compress_HC_continue using ExtDictCtx and fast reset should work : enough size available within output buffer");
FUZ_CHECKTEST(LZ4_streamHC.internal_donotuse.dirty, "Context should be clean");
FUZ_CHECKTEST(LZ4_streamHC->internal_donotuse.dirty, "Context should be clean");
LZ4_freeStreamHC(LZ4_streamHC);
}
FUZ_DISPLAYTEST();