Initialer Commit

CPP/7zip/Archive/Cab/CabBlockInStream.h

@@ -0,0 +1,43 @@
+// CabBlockInStream.h
+
+#ifndef __CAB_BLOCK_IN_STREAM_H
+#define __CAB_BLOCK_IN_STREAM_H
+
+#include "../../../Common/MyCom.h"
+#include "../../IStream.h"
+
+namespace NArchive {
+namespace NCab {
+
+class CCabBlockInStream:
+  public ISequentialInStream,
+  public CMyUnknownImp
+{
+  Byte *_buf;
+  UInt32 _size;
+  UInt32 _pos;
+
+public:
+  UInt32 ReservedSize; // < 256
+  bool MsZip;
+
+  MY_UNKNOWN_IMP
+
+  CCabBlockInStream(): _buf(0), ReservedSize(0), MsZip(false) {}
+  ~CCabBlockInStream();
+  
+  bool Create();
+  
+  void InitForNewBlock() { _size = 0; _pos = 0; }
+  
+  HRESULT PreRead(ISequentialInStream *stream, UInt32 &packSize, UInt32 &unpackSize);
+
+  UInt32 GetPackSizeAvail() const { return _size - _pos; }
+  const Byte *GetData() const { return _buf + _pos; }
+
+  STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
+};
+
+}}
+
+#endif