1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
2 // All rights reserved.
3 // This component and the accompanying materials are made available
4 // under the terms of "Eclipse Public License v1.0"
5 // which accompanies this distribution, and is available
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
8 // Initial Contributors:
9 // Nokia Corporation - initial contribution.
16 #include "CacheBase.h"
20 Initialized the iCachedItems array with granularity 8 and an offset to iHandle in TCacheEntry,
21 which will be used to find specific entries later.
23 CCacheBase::CCacheBase() : iCachedItems(8, _FOFF(TCacheEntry, iHandle))
28 CCacheBase::~CCacheBase()
30 for(TInt i = 0; i < iCachedItems.Count(); i++)
32 delete iCachedItems[i].iCachedItem;
39 Begins an update of the cache.
41 void CCacheBase::BeginUpdate()
43 // Sets all cached items to not used
44 for(TInt i = 0; i < iCachedItems.Count(); i++)
46 iCachedItems[i].iIsUsed = EFalse;
51 End an update of the cache.
53 void CCacheBase::EndUpdate()
55 // Removes all cached items that are not used
56 for(TInt i = 0; i < iCachedItems.Count(); i++)
58 if(!iCachedItems[i].iIsUsed)
60 delete iCachedItems[i].iCachedItem;
61 iCachedItems.Remove(i--);
64 // coverity[extend_simple_error]
68 Returns an item from the cache corresponding to a specific handle.
70 @param aHandle A handle to match against an item in the cache.
71 @return The item that matches the handle provided as a parameter.
73 const CBase* CCacheBase::Resolve(TInt aHandle)
75 TCacheEntry entry(aHandle);
76 TInt index = iCachedItems.FindInUnsignedKeyOrder(entry);
78 if(index != KErrNotFound)
79 return iCachedItems[index].iCachedItem;