Changeset 1585 for box/chris/merge/lib/common/ZeroStream.h

Timestamp:

28/04/2007 18:11:36 (5 years ago)

Author:

chris

Message:

Add a stream which provides a source of zero bytes of arbitrary size,
useful for testing support for files over 2GB. (refs #3)

File:

• box/chris/merge/lib/common/ZeroStream.h (copied) (copied from box/chris/merge/lib/common/BufferedStream.h) (2 diffs)

box/chris/merge/lib/common/ZeroStream.h

@@ -2 +2 @@
 //
 // File
-//              Name:    BufferedStream.h
-//              Purpose: Buffering wrapper around IOStreams
-//              Created: 2007/01/16
+//              Name:    ZeroStream.h
+//              Purpose: An IOStream which returns all zeroes up to a certain size
+//              Created: 2007/04/28
 //
 // --------------------------------------------------------------------------
 
-#ifndef BUFFEREDSTREAM__H
-#define BUFFEREDSTREAM__H
+#ifndef ZEROSTREAM__H
+#define ZEROSTREAM__H
 
 #include "IOStream.h"
 
-class BufferedStream : public IOStream
+class ZeroStream : public IOStream
 {
 private:
-        IOStream& mrSource;
-        char mBuffer[4096];
-        int  mBufferSize;
-        int  mBufferPosition;
+        IOStream::pos_type mSize, mPosition;
 
 public:
-        BufferedStream(IOStream& rSource);
+        ZeroStream(IOStream::pos_type mSize);
         
         virtual int Read(void *pBuffer, int NBytes, int Timeout = IOStream::TimeOutInfinite);
@@ -35 +32 @@
 
 private:
-        BufferedStream(const BufferedStream &rToCopy) 
-        : mrSource(rToCopy.mrSource) { /* do not call */ }
+        ZeroStream(const ZeroStream &rToCopy);
 };
 
-#endif // BUFFEREDSTREAM__H
+#endif // ZEROSTREAM__H