windowing/windowserver/nonnga/remotegc/CacheBase.h
author William Roberts <williamr@symbian.org>
Tue, 20 Apr 2010 16:24:43 +0100
branchNewGraphicsArchitecture
changeset 34 76efc8f9f7b4
parent 0 5d03bc08d59c
permissions -rw-r--r--
Apply Faisal's first patch from Bug 2354 - First resolve some the the bit rot in graphics MCL to get it to compile, then fix some performance issues in OpenWF
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// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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#ifndef __CACHEBASE_H__
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#define __CACHEBASE_H__
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#include <e32base.h>
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#include <e32cmn.h>
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/**
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A cache base-class providing basic functionality for resolving a cached item.
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*/
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NONSHARABLE_CLASS(CCacheBase): public CBase
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	{	
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public:	
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	void BeginUpdate();	
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	void EndUpdate();
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protected:
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	CCacheBase();
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	~CCacheBase();
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	virtual TInt UseL(TInt aHandle) = 0;
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	virtual const CBase* Resolve(TInt aHandle);
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protected:
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	struct TCacheEntry
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		{
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		TCacheEntry(TInt aHandle)
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			{
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			iHandle = aHandle;
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			}
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		TInt iHandle;
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		TBool iIsUsed;
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		CBase* iCachedItem;
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		};
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protected:		
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	RArray<TCacheEntry> iCachedItems;
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	};
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#endif //__CACHEBASE_H__
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