3.13

7zip/Archive/Common/OutStreamWithCRC.h

@@ -0,0 +1,36 @@
+// OutStreamWithCRC.h
+
+// #pragma once
+
+#ifndef __OUTSTREAMWITHCRC_H
+#define __OUTSTREAMWITHCRC_H
+
+#include "../../../Common/CRC.h"
+#include "../../../Common/MyCom.h"
+#include "../../IStream.h"
+
+class COutStreamWithCRC: 
+  public ISequentialOutStream,
+  public CMyUnknownImp
+{
+public:
+  MY_UNKNOWN_IMP
+
+  STDMETHOD(Write)(const void *data, UINT32 size, UINT32 *processedSize);
+  STDMETHOD(WritePart)(const void *data, UINT32 size, UINT32 *processedSize);
+private:
+  CCRC _crc;
+  CMyComPtr<ISequentialOutStream> _stream;
+public:
+  void Init(ISequentialOutStream *stream)
+  {
+    _stream = stream;
+    _crc.Init();
+  }
+  void ReleaseStream() { _stream.Release(); }
+  UINT32 GetCRC() const { return _crc.GetDigest(); }
+  void InitCRC() { _crc.Init(); }
+
+};
+
+#endif