perfect.hh

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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"
 
namespace gem5
{
 
struct PerfectCompressorParams;
 
namespace compression
{
 
class Perfect : public Base
{
  protected:
    class CompData;
 
    const int compressedSize;
 
    const Cycles compressionLatency;
 
    const Cycles decompressionLatency;
 
    std::unique_ptr<CompressionData> compress(
        const std::vector<Chunk>& chunks, Cycles& comp_lat,
        Cycles& decomp_lat) override;
 
    void decompress(const CompressionData* comp_data, uint64_t* data) override;
 
  public:
    typedef PerfectCompressorParams Params;
    Perfect(const Params &p);
    ~Perfect() = default;
};
 
class Perfect::CompData : public CompressionData
{
  public:
    std::vector<Chunk> chunks;
 
    CompData(const std::vector<Chunk>& chunks)
      : CompressionData(), chunks(chunks)
    {
    }
    ~CompData() = default;
};
 
} // namespace compression
} // namespace gem5
 
#endif //__MEM_CACHE_COMPRESSORS_PERFECT_COMPRESSOR_HH__