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-rwxr-xr-xCPP/7zip/Archive/Common/OutStreamWithCRC.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/CPP/7zip/Archive/Common/OutStreamWithCRC.h b/CPP/7zip/Archive/Common/OutStreamWithCRC.h
new file mode 100755
index 0000000..d9eb646
--- /dev/null
+++ b/CPP/7zip/Archive/Common/OutStreamWithCRC.h
@@ -0,0 +1,36 @@
+// OutStreamWithCRC.h
+
+#ifndef __OUT_STREAM_WITH_CRC_H
+#define __OUT_STREAM_WITH_CRC_H
+
+#include "../../../../C/7zCrc.h"
+
+#include "../../../Common/MyCom.h"
+
+#include "../../IStream.h"
+
+class COutStreamWithCRC:
+ public ISequentialOutStream,
+ public CMyUnknownImp
+{
+ CMyComPtr<ISequentialOutStream> _stream;
+ UInt64 _size;
+ UInt32 _crc;
+ bool _calculate;
+public:
+ MY_UNKNOWN_IMP
+ STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
+ void SetStream(ISequentialOutStream *stream) { _stream = stream; }
+ void ReleaseStream() { _stream.Release(); }
+ void Init(bool calculate = true)
+ {
+ _size = 0;
+ _calculate = calculate;
+ _crc = CRC_INIT_VAL;
+ }
+ void InitCRC() { _crc = CRC_INIT_VAL; }
+ UInt64 GetSize() const { return _size; }
+ UInt32 GetCRC() const { return CRC_GET_DIGEST(_crc); }
+};
+
+#endif