57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
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#pragma once
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#include "leveldb/compressor.h"
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namespace leveldb {
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class DLLX ZlibCompressorBase : public Compressor
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{
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public:
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int inflate(const char* input, size_t length, ::std::string &output) const;
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const int compressionLevel;
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const bool raw;
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virtual ~ZlibCompressorBase() {
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}
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ZlibCompressorBase(char uniqueCompressionID, int compressionLevel, bool raw) :
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Compressor(uniqueCompressionID),
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compressionLevel(compressionLevel),
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raw(raw)
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{
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assert(compressionLevel >= -1 && compressionLevel <= 9);
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}
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virtual void compressImpl(const char* input, size_t length, ::std::string& output) const override;
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virtual bool decompress(const char* input, size_t length, ::std::string &output) const override;
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private:
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int _window() const;
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};
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class DLLX ZlibCompressor : public ZlibCompressorBase {
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public:
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static const int SERIALIZE_ID = 2;
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ZlibCompressor(int compressionLevel = -1) :
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ZlibCompressorBase(SERIALIZE_ID, compressionLevel, false) {
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}
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};
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class DLLX ZlibCompressorRaw : public ZlibCompressorBase {
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public:
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static const int SERIALIZE_ID = 4;
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ZlibCompressorRaw(int compressionLevel = -1) :
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ZlibCompressorBase(SERIALIZE_ID, compressionLevel, true) {
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}
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};
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} |