Class FragmentedWindow

Libraries/unrar/unpack.hpp:183–199

We can use the fragmented dictionary in case heap does not have the single large enough memory block. It is slower than normal dictionary.

// We can use the fragmented dictionary in case heap does not have the single
// large enough memory block. It is slower than normal dictionary.
class FragmentedWindow
{
  private:
    enum {MAX_MEM_BLOCKS=32};

    void Reset();
    byte *Mem[MAX_MEM_BLOCKS];
    size_t MemSize[MAX_MEM_BLOCKS];
  public:
    FragmentedWindow();
    ~FragmentedWindow();
    void Init(size_t WinSize);
    byte& operator [](size_t Item);
    void CopyString(uint Length,uint Distance,size_t &UnpPtr,size_t MaxWinMask);
    void CopyData(byte *Dest,size_t WinPos,size_t Size);
    size_t GetBlockSize(size_t StartPos,size_t RequiredSize);
};


class Unpack:PackDef