library/cpp/codecs/zstd_dict_codec.h


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#pragma once

#include "codecs.h"

#include <util/generic/ptr.h>

namespace NCodecs {
    // benchmarks are here: https://st.yandex-team.ru/SEARCH-1655 

    class TZStdDictCodec: public ICodec { 
        class TImpl; 
        TIntrusivePtr<TImpl> Impl; 

    public: 
        explicit TZStdDictCodec(ui32 comprLevel = 1); 
        ~TZStdDictCodec() override; 

        static TStringBuf MyName() { 
            return "zstd08d"; 
        } 

        TString GetName() const override; 

        ui8 Encode(TStringBuf in, TBuffer& out) const override; 

        void Decode(TStringBuf in, TBuffer& out) const override; 

        static TVector<TString> ListCompressionNames(); 
        static int ParseCompressionName(TStringBuf); 

    protected: 
        void DoLearn(ISequenceReader& in) override; 
        bool DoTryToLearn(ISequenceReader& in) final;
        void Save(IOutputStream* out) const override; 
        void Load(IInputStream* in) override; 
    }; 

}