// Copyright (c) 1994-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "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:

// e32\include\e32base_private.h

// 

// WARNING: This file contains some APIs which are internal and are subject

//          to change without notice. Such APIs should therefore not be used

//          outside the Kernel and Hardware Services package.

//

/**

 @file

 @internalTechnology

 @released

*/

#ifndef __E32BASE_PRIVATE_H__

#define __E32BASE_PRIVATE_H__

#include <e32std.h>

#include <e32std_private.h>

#include <e32base.h>

/**

@internalComponent

*/

		struct	TObjectDataStr	//In use if this slot contains pointer to object.

			{			

			TInt16 instance;  

			TUint16 uniqueID;

			};

/**

@internalComponent

*/

		struct SObjectIxRec

			{

			union

			{

				TObjectDataStr str;	//This is in use if the slot contains pointer to CObject.	

				TInt nextEmpty;		//This is in use if the slot is empty. Points to the next empty slot ...

									//... in the list. 16 bits would be enough but ARM prefers 32 bytes.

			};

			CObject* obj;

			};

/**

@internalTechnology

@deprecated

*/

class CBitMapAllocator : public CBase

	{

public:

	IMPORT_C static CBitMapAllocator* New(TInt aSize);

	IMPORT_C static CBitMapAllocator* NewL(TInt aSize);

	IMPORT_C ~CBitMapAllocator();

	IMPORT_C TInt Alloc();

	IMPORT_C TInt AllocFrom(TInt aPos);

	IMPORT_C TInt Alloc(TInt aCount, TInt& aConsecutive);

	IMPORT_C TInt AllocAligned(TInt anAlignment);

	IMPORT_C TInt AllocAlignedBlock(TInt anAlignment);

	IMPORT_C TInt AllocFromTop();

	IMPORT_C TInt AllocFromTopFrom(TInt aPos);

	IMPORT_C void AllocAt(TInt aPos);

	IMPORT_C void AllocAt(TInt aPos, TInt aCount);

	IMPORT_C TBool IsFree(TInt aPos);

	IMPORT_C TBool IsFree(TInt aPos, TInt aCount);

	IMPORT_C void Free(TInt aPos);

	IMPORT_C void Free(TInt aPos, TInt aCount);

	IMPORT_C TInt Avail();

	IMPORT_C TInt Size();

	IMPORT_C TInt ExtractRamPages(TInt aConsecutive,TInt& aPageNo);

protected:

	IMPORT_C CBitMapAllocator(TInt aSize,TInt aLength);

protected:

	TInt iAvail;

	TInt iSize;

	TInt iLength;

	TUint iMap[1];

	};

#endif //__E32BASE_H__