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1 // MultiStream.h |
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2 |
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3 #ifndef __MULTISTREAM_H |
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4 #define __MULTISTREAM_H |
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5 |
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6 #include "../../../Common/MyCom.h" |
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7 #include "../../../Common/MyVector.h" |
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8 #include "../../Archive/IArchive.h" |
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9 |
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10 class CMultiStream: |
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11 public IInStream, |
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12 public CMyUnknownImp |
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13 { |
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14 int _streamIndex; |
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15 UInt64 _pos; |
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16 UInt64 _seekPos; |
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17 UInt64 _totalLength; |
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18 public: |
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19 struct CSubStreamInfo |
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20 { |
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21 CMyComPtr<IInStream> Stream; |
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22 UInt64 Pos; |
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23 UInt64 Size; |
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24 }; |
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25 CObjectVector<CSubStreamInfo> Streams; |
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26 void Init() |
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27 { |
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28 _streamIndex = 0; |
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29 _pos = 0; |
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30 _seekPos = 0; |
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31 _totalLength = 0; |
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32 for (int i = 0; i < Streams.Size(); i++) |
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33 _totalLength += Streams[i].Size; |
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34 } |
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35 |
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36 MY_UNKNOWN_IMP1(IInStream) |
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37 |
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38 STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize); |
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39 STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition); |
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40 }; |
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41 |
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42 /* |
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43 class COutMultiStream: |
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44 public IOutStream, |
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45 public CMyUnknownImp |
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46 { |
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47 int _streamIndex; // required stream |
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48 UInt64 _offsetPos; // offset from start of _streamIndex index |
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49 UInt64 _absPos; |
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50 UInt64 _length; |
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51 |
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52 struct CSubStreamInfo |
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53 { |
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54 CMyComPtr<ISequentialOutStream> Stream; |
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55 UInt64 Size; |
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56 UInt64 Pos; |
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57 }; |
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58 CObjectVector<CSubStreamInfo> Streams; |
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59 public: |
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60 CMyComPtr<IArchiveUpdateCallback2> VolumeCallback; |
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61 void Init() |
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62 { |
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63 _streamIndex = 0; |
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64 _offsetPos = 0; |
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65 _absPos = 0; |
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66 _length = 0; |
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67 } |
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68 |
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69 MY_UNKNOWN_IMP1(IOutStream) |
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70 |
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71 STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize); |
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72 STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition); |
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73 }; |
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74 */ |
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75 |
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76 #endif |
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