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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 the License "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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// e32\include\kernel\kbma.h
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//
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// WARNING: This file contains some APIs which are internal and are subject
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// to change without notice. Such APIs should therefore not be used
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// outside the Kernel and Hardware Services package.
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//
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#ifndef __KBMA_H__
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#define __KBMA_H__
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#include <e32cmn.h>
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/** Simple bitmap allocator
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@publishedPartner
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@released
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*/
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class TBitMapAllocator
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{
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public:
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IMPORT_C static TBitMapAllocator* New(TInt aSize, TBool aState);
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IMPORT_C TBitMapAllocator(TInt aSize, TBool aState);
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inline TInt Avail() const {return iAvail;}
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IMPORT_C TInt Alloc();
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IMPORT_C TInt AllocFrom(TUint aOffset);
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IMPORT_C void Free(TInt aPos);
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IMPORT_C void Alloc(TInt aStart, TInt aLength);
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IMPORT_C void Free(TInt aStart, TInt aLength);
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IMPORT_C void SelectiveFree(TInt aStart, TInt aLength);
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IMPORT_C TBool NotFree(TInt aStart, TInt aLength) const;
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IMPORT_C TBool NotAllocated(TInt aStart, TInt aLength) const;
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IMPORT_C TInt AllocList(TInt aLength, TInt* aList);
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IMPORT_C TInt AllocConsecutive(TInt aLength, TBool aBestFit) const;
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IMPORT_C TInt AllocAligned(TInt aLength, TInt aAlign, TInt aBase, TBool aBestFit) const;
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IMPORT_C TInt AllocAligned(TInt aLength, TInt aAlign, TInt aBase, TBool aBestFit, TInt& aCarry, TInt& aRunLength) const;
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IMPORT_C TInt AllocAligned(TInt aLength, TInt aAlign, TInt aBase, TBool aBestFit, TInt& aCarry, TInt& aRunLength, TUint aOffset) const;
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IMPORT_C void CopyAlignedRange(const TBitMapAllocator* aA, TInt aFirst, TInt aLen);
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public:
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TInt iAvail; /**< @internalComponent */
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TUint32* iCheckFirst; /**< @internalComponent */
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TInt iSize; /**< @internalComponent */
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TUint32 iMap[1]; /**< @internalComponent */ // extend
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};
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#endif
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