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zbufftest now ensures ZBUFF_compressEnd() is fully flushed in a single pass if dst buffer is large enough

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This commit is contained in:
Yann Collet 2016-06-21 14:14:02 +02:00
parent aa29226b7c
commit 446d442989
1 changed files with 3 additions and 1 deletions
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4
programs/zbufftest.c
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@ -421,13 +421,15 @@ static int fuzzerTests(U32 seed, U32 nbTests, unsigned startTest, double compres
} } } }
/* final frame epilogue */ /* final frame epilogue */
{ size_t remainingToFlush = 1; { size_t remainingToFlush = (size_t)(-1);
while (remainingToFlush) { while (remainingToFlush) {
size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog); size_t const randomDstSize = FUZ_randomLength(&lseed, maxSampleLog);
size_t dstBuffSize = MIN(cBufferSize - cSize, randomDstSize); size_t dstBuffSize = MIN(cBufferSize - cSize, randomDstSize);
U32 const enoughDstSize = dstBuffSize >= remainingToFlush;
remainingToFlush = ZBUFF_compressEnd(zc, cBuffer+cSize, &dstBuffSize); remainingToFlush = ZBUFF_compressEnd(zc, cBuffer+cSize, &dstBuffSize);
CHECK (ZBUFF_isError(remainingToFlush), "flush error : %s", ZBUFF_getErrorName(remainingToFlush)); CHECK (ZBUFF_isError(remainingToFlush), "flush error : %s", ZBUFF_getErrorName(remainingToFlush));
//DISPLAY("flush %u bytes : still within context : %i \n", (U32)dstBuffSize, (int)remainingToFlush); //DISPLAY("flush %u bytes : still within context : %i \n", (U32)dstBuffSize, (int)remainingToFlush);
CHECK (enoughDstSize && remainingToFlush, "ZBUFF_compressEnd() not fully flushed, but enough space available");
cSize += dstBuffSize; cSize += dstBuffSize;
} } } }
crcOrig = XXH64_digest(&xxhState); crcOrig = XXH64_digest(&xxhState);