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38 lines
892 B
C++
38 lines
892 B
C++
#pragma once
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#include <IO/WriteBuffer.h>
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#include <Compression/ICompressionCodec.h>
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#include <IO/BufferWithOwnMemory.h>
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#include <Parsers/StringRange.h>
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namespace DB
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{
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class CompressionCodecZSTD : public ICompressionCodec
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{
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public:
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static constexpr auto ZSTD_DEFAULT_LEVEL = 1;
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CompressionCodecZSTD(int level_);
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uint8_t getMethodByte() const override;
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UInt32 getMaxCompressedDataSize(UInt32 uncompressed_size) const override;
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void updateHash(SipHash & hash) const override;
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protected:
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UInt32 doCompressData(const char * source, UInt32 source_size, char * dest) const override;
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void doDecompressData(const char * source, UInt32 source_size, char * dest, UInt32 uncompressed_size) const override;
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bool isCompression() const override { return true; }
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bool isGenericCompression() const override { return true; }
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private:
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const int level;
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};
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}
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