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-rwxr-xr-xCPP/7zip/Archive/Common/InStreamWithCRC.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/CPP/7zip/Archive/Common/InStreamWithCRC.h b/CPP/7zip/Archive/Common/InStreamWithCRC.h
new file mode 100755
index 0000000..1a4b2c9
--- /dev/null
+++ b/CPP/7zip/Archive/Common/InStreamWithCRC.h
@@ -0,0 +1,67 @@
+// InStreamWithCRC.h
+
+#ifndef __IN_STREAM_WITH_CRC_H
+#define __IN_STREAM_WITH_CRC_H
+
+#include "../../../../C/7zCrc.h"
+
+#include "../../../Common/MyCom.h"
+
+#include "../../IStream.h"
+
+class CSequentialInStreamWithCRC:
+ public ISequentialInStream,
+ public CMyUnknownImp
+{
+public:
+ MY_UNKNOWN_IMP
+
+ STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
+private:
+ CMyComPtr<ISequentialInStream> _stream;
+ UInt64 _size;
+ UInt32 _crc;
+ bool _wasFinished;
+public:
+ void SetStream(ISequentialInStream *stream) { _stream = stream; }
+ void Init()
+ {
+ _size = 0;
+ _wasFinished = false;
+ _crc = CRC_INIT_VAL;
+ }
+ void ReleaseStream() { _stream.Release(); }
+ UInt32 GetCRC() const { return CRC_GET_DIGEST(_crc); }
+ UInt64 GetSize() const { return _size; }
+ bool WasFinished() const { return _wasFinished; }
+};
+
+class CInStreamWithCRC:
+ public IInStream,
+ public CMyUnknownImp
+{
+public:
+ MY_UNKNOWN_IMP1(IInStream)
+
+ STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
+ STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition);
+private:
+ CMyComPtr<IInStream> _stream;
+ UInt64 _size;
+ UInt32 _crc;
+ // bool _wasFinished;
+public:
+ void SetStream(IInStream *stream) { _stream = stream; }
+ void Init()
+ {
+ _size = 0;
+ // _wasFinished = false;
+ _crc = CRC_INIT_VAL;
+ }
+ void ReleaseStream() { _stream.Release(); }
+ UInt32 GetCRC() const { return CRC_GET_DIGEST(_crc); }
+ UInt64 GetSize() const { return _size; }
+ // bool WasFinished() const { return _wasFinished; }
+};
+
+#endif