--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/windowing/windowserver/nga/remotegc/CacheBase.h	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,59 @@
+// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "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:
+//
+
+#ifndef __CACHEBASE_H__
+#define __CACHEBASE_H__
+
+#include <e32base.h>
+#include <e32cmn.h>
+
+/**
+A cache base-class providing basic functionality for resolving a cached item.
+*/
+NONSHARABLE_CLASS(CCacheBase): public CBase
+	{	
+public:	
+	void BeginUpdate();	
+	void EndUpdate();
+
+protected:
+	CCacheBase();
+	~CCacheBase();
+	
+	virtual TInt UseL(TInt aHandle) = 0;
+	virtual const CBase* Resolve(TInt aHandle);
+	
+protected:
+	struct TCacheEntry
+		{
+		TCacheEntry(TInt aHandle)
+			{
+			iHandle = aHandle;
+			}
+			
+		TInt iHandle;
+		TBool iIsUsed;
+		CBase* iCachedItem;
+		};
+
+protected:		
+	RArray<TCacheEntry> iCachedItems;
+	};
+	
+#endif //__CACHEBASE_H__
+
+
+
+