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;
    };
 
}