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Output regular uncompressed block when compressSequences fails

dev
Bimba Shrestha 2019-11-18 08:43:14 -08:00
parent 2d5d961a60
commit dade64428f
1 changed files with 7 additions and 1 deletions
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8
lib/compress/zstd_compress.c
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@ -2496,7 +2496,13 @@ static size_t ZSTD_compressBlock_targetCBlockSize(ZSTD_CCtx* zc,
srcSize,
zc->entropyWorkspace, HUF_WORKSPACE_SIZE /* statically allocated in resetCCtx */,
zc->bmi2);
if (!ZSTD_isError(cSize) && cSize != 0) {
if (cSize == 0) {
/* If compressSequences didn't work, we just output a regular
* uncompressed block */
cSize = ZSTD_noCompressBlock(dst, dstCapacity, src, srcSize, lastBlock);
FORWARD_IF_ERROR(cSize);
} else {
U32 const cBlockHeader24 = lastBlock + (((U32)bt_compressed)<<1) + (U32)(cSize << 3);
MEM_writeLE24(ostart, cBlockHeader24);
cSize += ZSTD_blockHeaderSize;