HuaHuaY commented on code in PR #48865:
URL: https://github.com/apache/arrow/pull/48865#discussion_r2705024963
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cpp/src/arrow/util/compression_zstd.cc:
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@@ -235,13 +226,47 @@ class ZSTDCodec : public Codec {
int compression_level() const override { return compression_level_; }
private:
+ Result<CCtxPtr> CreateCCtx() const {
+ CCtxPtr cctx{ZSTD_createCCtx(), ZSTD_freeCCtx};
Review Comment:
I didn't see any relevant information in the Zstd documentation. But I found
that there are some codes using `ZSTD_createCCtx()` and they check whether the
return value is `nullptr`. So I added a judgment that returns an error if the
result is `nullptr`.
References:
1.
https://android.googlesource.com/platform/external/zstd/+/refs/heads/android14-mainline-adbd-release/examples/streaming_compression_thread_pool.c
2. https://llvm.org/doxygen/Compression_8cpp_source.html
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