Mercurial > vba-linux
annotate src/win32/7zip/7z/CPP/7zip/Archive/Common/InStreamWithCRC.h @ 1:f9f4f1b99eed
importing src directory
| author | Robert McIntyre <rlm@mit.edu> |
|---|---|
| date | Sat, 03 Mar 2012 10:31:27 -0600 |
| parents | |
| children |
| rev | line source |
|---|---|
| rlm@1 | 1 // InStreamWithCRC.h |
| rlm@1 | 2 |
| rlm@1 | 3 #ifndef __INSTREAMWITHCRC_H |
| rlm@1 | 4 #define __INSTREAMWITHCRC_H |
| rlm@1 | 5 |
| rlm@1 | 6 #include "../../../Common/MyCom.h" |
| rlm@1 | 7 #include "../../IStream.h" |
| rlm@1 | 8 |
| rlm@1 | 9 extern "C" |
| rlm@1 | 10 { |
| rlm@1 | 11 #include "../../../../C/7zCrc.h" |
| rlm@1 | 12 } |
| rlm@1 | 13 |
| rlm@1 | 14 class CSequentialInStreamWithCRC: |
| rlm@1 | 15 public ISequentialInStream, |
| rlm@1 | 16 public CMyUnknownImp |
| rlm@1 | 17 { |
| rlm@1 | 18 public: |
| rlm@1 | 19 MY_UNKNOWN_IMP |
| rlm@1 | 20 |
| rlm@1 | 21 STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize); |
| rlm@1 | 22 private: |
| rlm@1 | 23 CMyComPtr<ISequentialInStream> _stream; |
| rlm@1 | 24 UInt64 _size; |
| rlm@1 | 25 UInt32 _crc; |
| rlm@1 | 26 bool _wasFinished; |
| rlm@1 | 27 public: |
| rlm@1 | 28 void SetStream(ISequentialInStream *stream) { _stream = stream; } |
| rlm@1 | 29 void Init() |
| rlm@1 | 30 { |
| rlm@1 | 31 _size = 0; |
| rlm@1 | 32 _wasFinished = false; |
| rlm@1 | 33 _crc = CRC_INIT_VAL; |
| rlm@1 | 34 } |
| rlm@1 | 35 void ReleaseStream() { _stream.Release(); } |
| rlm@1 | 36 UInt32 GetCRC() const { return CRC_GET_DIGEST(_crc); } |
| rlm@1 | 37 UInt64 GetSize() const { return _size; } |
| rlm@1 | 38 bool WasFinished() const { return _wasFinished; } |
| rlm@1 | 39 }; |
| rlm@1 | 40 |
| rlm@1 | 41 class CInStreamWithCRC: |
| rlm@1 | 42 public IInStream, |
| rlm@1 | 43 public CMyUnknownImp |
| rlm@1 | 44 { |
| rlm@1 | 45 public: |
| rlm@1 | 46 MY_UNKNOWN_IMP1(IInStream) |
| rlm@1 | 47 |
| rlm@1 | 48 STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize); |
| rlm@1 | 49 STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition); |
| rlm@1 | 50 private: |
| rlm@1 | 51 CMyComPtr<IInStream> _stream; |
| rlm@1 | 52 UInt64 _size; |
| rlm@1 | 53 UInt32 _crc; |
| rlm@1 | 54 bool _wasFinished; |
| rlm@1 | 55 public: |
| rlm@1 | 56 void SetStream(IInStream *stream) { _stream = stream; } |
| rlm@1 | 57 void Init() |
| rlm@1 | 58 { |
| rlm@1 | 59 _size = 0; |
| rlm@1 | 60 _wasFinished = false; |
| rlm@1 | 61 _crc = CRC_INIT_VAL; |
| rlm@1 | 62 } |
| rlm@1 | 63 void ReleaseStream() { _stream.Release(); } |
| rlm@1 | 64 UInt32 GetCRC() const { return CRC_GET_DIGEST(_crc); } |
| rlm@1 | 65 UInt64 GetSize() const { return _size; } |
| rlm@1 | 66 bool WasFinished() const { return _wasFinished; } |
| rlm@1 | 67 }; |
| rlm@1 | 68 |
| rlm@1 | 69 #endif |