perfect.hh

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/*
 * Copyright (c) 2019 Inria
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#ifndef __MEM_CACHE_COMPRESSORS_PERFECT_COMPRESSOR_HH__
#define __MEM_CACHE_COMPRESSORS_PERFECT_COMPRESSOR_HH__

#include <cstdint>
#include <memory>
#include <vector>

#include "base/types.hh"
#include "mem/cache/compressors/base.hh"

struct PerfectCompressorParams;

class PerfectCompressor : public BaseCacheCompressor
{
  protected:
    class CompData;

    const int compressedSize;

    const Cycles compressionLatency;

    const Cycles decompressionLatency;

    std::unique_ptr<CompressionData> compress(const uint64_t* cache_line,
        Cycles& comp_lat, Cycles& decomp_lat) override;

    void decompress(const CompressionData* comp_data, uint64_t* data) override;

  public:
    typedef PerfectCompressorParams Params;
    PerfectCompressor(const Params *p);
    ~PerfectCompressor() {};
};

class PerfectCompressor::CompData : public CompressionData
{
  public:
    std::vector<uint64_t> entries;

    CompData(const uint64_t* data, std::size_t num_entries);
    ~CompData() = default;
};

#endif //__MEM_CACHE_COMPRESSORS_PERFECT_COMPRESSOR_HH__