3.13

7zip/Archive/7z/7zSpecStream.h

@@ -0,0 +1,38 @@
+// 7zSpecStream.h
+
+#pragma once
+
+#ifndef __7Z_SPEC_STREAM_H
+#define __7Z_SPEC_STREAM_H
+
+#include "../../IStream.h"
+#include "../../ICoder.h"
+#include "../../../Common/MyCom.h"
+
+class CSequentialInStreamSizeCount2: 
+  public ISequentialInStream,
+  public ICompressGetSubStreamSize,
+  public CMyUnknownImp
+{
+  CMyComPtr<ISequentialInStream> _stream;
+  CMyComPtr<ICompressGetSubStreamSize> _getSubStreamSize;
+  UINT64 _size;
+public:
+  void Init(ISequentialInStream *stream)
+  {
+    _stream = stream;
+    _getSubStreamSize = 0;
+    _stream.QueryInterface(IID_ICompressGetSubStreamSize, &_getSubStreamSize);
+    _size = 0;
+  }
+  UINT64 GetSize() const { return _size; }
+
+  MY_UNKNOWN_IMP1(ICompressGetSubStreamSize)
+
+  STDMETHOD(Read)(void *data, UINT32 size, UINT32 *processedSize);
+  STDMETHOD(ReadPart)(void *data, UINT32 size, UINT32 *processedSize);
+
+  STDMETHOD(GetSubStreamSize)(UINT64 subStream, UINT64 *value);
+};
+
+#endif