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Fix bug found on review

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This commit is contained in:
alesapin 2021-09-23 16:49:48 +03:00
parent d69fc35dd9
commit eb3a651bab
1 changed files with 6 additions and 2 deletions
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8
src/IO/ZstdDeflatingAppendableWriteBuffer.cpp
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@ -151,10 +151,14 @@ void ZstdDeflatingAppendableWriteBuffer::finishImpl()
void ZstdDeflatingAppendableWriteBuffer::addEmptyBlock()
{
/// HACK: https://github.com/facebook/zstd/issues/2090#issuecomment-620158967
out.nextIfAtEnd();
static const char empty_block[3] = {0x01, 0x00, 0x00};
if (out.buffer().size() - out.offset() < sizeof(empty_block))
out.next();
std::memcpy(out.buffer().begin() + out.offset(), empty_block, sizeof(empty_block));
out.position() = out.buffer().begin() + sizeof(empty_block);
out.position() = out.buffer().begin() + out.offset() + sizeof(empty_block);
}
}