Add a stream which provides a source of zero bytes of arbitrary size,

useful for testing support for files over 2GB. (refs #3)

1 files changed, 39 insertions, 0 deletions

diff --git a/lib/common/ZeroStream.h b/lib/common/ZeroStream.h
new file mode 100644
index 00000000..0119045b
--- /dev/null
+++ b/lib/common/ZeroStream.h
@@ -0,0 +1,39 @@
+// --------------------------------------------------------------------------
+//
+// File
+//		Name:    ZeroStream.h
+//		Purpose: An IOStream which returns all zeroes up to a certain size
+//		Created: 2007/04/28
+//
+// --------------------------------------------------------------------------
+
+#ifndef ZEROSTREAM__H
+#define ZEROSTREAM__H
+
+#include "IOStream.h"
+
+class ZeroStream : public IOStream
+{
+private:
+	IOStream::pos_type mSize, mPosition;
+
+public:
+	ZeroStream(IOStream::pos_type mSize);
+	
+	virtual int Read(void *pBuffer, int NBytes, int Timeout = IOStream::TimeOutInfinite);
+	virtual pos_type BytesLeftToRead();
+	virtual void Write(const void *pBuffer, int NBytes);
+	virtual pos_type GetPosition() const;
+	virtual void Seek(IOStream::pos_type Offset, int SeekType);
+	virtual void Close();
+	
+	virtual bool StreamDataLeft();
+	virtual bool StreamClosed();
+
+private:
+	ZeroStream(const ZeroStream &rToCopy);
+};
+
+#endif // ZEROSTREAM__H
+
+