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62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
#ifndef _RAR_QOPEN_
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#define _RAR_QOPEN_
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struct QuickOpenItem
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{
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byte *Header;
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size_t HeaderSize;
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uint64 ArcPos;
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QuickOpenItem *Next;
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};
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class Archive;
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class RawRead;
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class QuickOpen
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{
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private:
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void Close();
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uint ReadBuffer();
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bool ReadRaw(RawRead &Raw);
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bool ReadNext();
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Archive *Arc;
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bool WriteMode;
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QuickOpenItem *ListStart;
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QuickOpenItem *ListEnd;
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byte *Buf; // Read quick open data here.
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static const size_t MaxBufSize=0x10000; // Buf size, must be multiple of CRYPT_BLOCK_SIZE.
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size_t CurBufSize; // Current size of buffered data in write mode.
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#ifndef RAR_NOCRYPT // For shell extension.
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CryptData Crypt;
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#endif
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bool Loaded;
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uint64 QOHeaderPos; // Main QO header position.
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uint64 RawDataStart; // Start of QO data, just after the main header.
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uint64 RawDataSize; // Size of entire QO data.
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uint64 RawDataPos; // Current read position in QO data.
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size_t ReadBufSize; // Size of Buf data currently read from QO.
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size_t ReadBufPos; // Current read position in Buf data.
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Array<byte> LastReadHeader;
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uint64 LastReadHeaderPos;
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uint64 SeekPos;
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bool UnsyncSeekPos; // QOpen SeekPos does not match an actual file pointer.
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public:
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QuickOpen();
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~QuickOpen();
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void Init(Archive *Arc,bool WriteMode);
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void Load(uint64 BlockPos);
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void Unload() { Loaded=false; }
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bool Read(void *Data,size_t Size,size_t &Result);
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bool Seek(int64 Offset,int Method);
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bool Tell(int64 *Pos);
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};
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#endif
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