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/*
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* Copyright (c) 2005-2009 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: Base class for all objects created by backend
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*
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*/
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#ifndef BASE_H
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#define BASE_H
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#include "sysif.h"
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class BBase : public CBase
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{
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public:
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/*
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Default constructor
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*/
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inline BBase() {}
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virtual ~BBase() { }
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/* *****************************************************************
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Overloading new and delete operators so that they will
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allocate and deallocare memory from/to the private heap of backend
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********************************************************************/
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inline TAny* operator new(TUint aSize, TAny* aBase) __NO_THROW
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{
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Mem::FillZ(aBase, aSize); return aBase;
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}
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inline TAny* operator new(TUint aSize) __NO_THROW
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{
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return Backend()->Alloc(aSize);
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}
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inline TAny* operator new(TUint aSize, TLeave)
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{
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TAny* ptr = Backend()->Alloc(aSize);
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if (ptr == NULL)
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{
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User::Leave(KErrNoMemory);
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}
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return ptr;
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}
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inline TAny* operator new(TUint aSize, TUint aExtraSize) __NO_THROW
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{
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return Backend()->Alloc(aSize + aExtraSize);
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}
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inline TAny* operator new(TUint aSize, TLeave, TUint aExtraSize)
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{
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TAny* ptr = Backend()->Alloc(aSize + aExtraSize);
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if (ptr == NULL)
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{
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User::Leave(KErrNoMemory);
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}
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return ptr;
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}
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/*corresponding overloaded delete operators */
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inline void operator delete(TAny *aPtr, TAny*) __NO_THROW
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{
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Backend()->Free( aPtr );
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}
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inline void operator delete(TAny *aPtr) __NO_THROW
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{
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Backend()->Free( aPtr );
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}
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inline void operator delete(TAny *aPtr, TLeave)
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{
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Backend()->Free( aPtr );
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}
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inline void operator delete(TAny *aPtr, TUint) __NO_THROW
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{
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Backend()->Free( aPtr );
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}
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inline void operator delete(TAny *aPtr, TLeave, TUint)
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{
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Backend()->Free( aPtr );
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}
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static void Delete(BBase* aPtr)
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{
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delete aPtr;
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}
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/*
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protected:
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virtual TInt Extension_(TUint aExtensionId, TAny*& a0, TAny* a1)
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{
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a0 = NULL;
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return KErrExtensionNotSupported;
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}*/
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private:
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BBase(const BBase&);
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BBase& operator=(const CBase&);
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};
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#endif //BASE_H
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