--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kernel/eka/euser/us_ref.cpp	Thu Dec 17 09:24:54 2009 +0200
@@ -0,0 +1,98 @@
+// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// e32\euser\us_ref.cpp
+// 
+//
+
+#include "us_std.h"
+
+
+
+/**
+Frees the memory holding the contained object.
+*/
+EXPORT_C void RRefBase::Free()
+	{
+
+	if (iPtr)
+		{
+		if (--iPtr[-1]==0)
+			User::Free(iPtr-1);
+		iPtr=NULL;
+		}
+	}
+
+
+
+
+/**
+Creates a copy of an object, which is to be contained by
+this reference object.
+
+@param aPtr  A pointer to memory holding a copy of the object.
+@param aSize The size of the memory required to hold the object.
+*/
+EXPORT_C void RRefBase::DoAlloc(const TAny *aPtr,TInt aSize)
+	{
+
+	__ASSERT_ALWAYS(aSize>=0,Panic(ERefAllocSizeNegative));
+	Free();
+	iPtr=(TInt *)User::Alloc(aSize+sizeof(TInt));
+	if (iPtr!=NULL)
+		{
+		iPtr++;
+		iPtr[-1]=1;
+		Mem::Copy(iPtr,aPtr,aSize);
+		}
+	}
+
+
+
+
+/**
+Creates a copy of an object, which is to be contained by
+this reference object, and leaves on error.
+
+@param aPtr  A pointer to memory holding a copy of the object.
+@param aSize The size of the memory required to hold the object.
+*/
+EXPORT_C void RRefBase::DoAllocL(const TAny *aPtr,TInt aSize)
+	{
+
+	DoAlloc(aPtr,aSize);
+	User::LeaveIfNull(iPtr);
+	}
+
+
+
+
+/**
+Provides an implementation for the RRef class copy
+constructor and assignment operator.
+
+@param aRef The reference object to be copied.
+
+@see RRef
+*/
+EXPORT_C void RRefBase::Copy(const RRefBase &aRef)
+	{
+
+	if (this!=(&aRef))
+		{
+		Free();
+		iPtr=aRef.iPtr;
+		iPtr[-1]++;
+		}
+	}
+