// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "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:

//

#ifndef ICL_RECORDTABLE_H

#define ICL_RECORDTABLE_H

#include <e32base.h>

/**

This class is used for keeping track of the location and size of structures

within container file formats to prevent infinite looping on corrupted files.

@internalComponent

*/

class CRecordTable : public CBase

	{

public:

	static CRecordTable* NewL();

	~CRecordTable();

	TInt InsertRecordL(TInt aRecordStart, TInt aRecordLength);

	void Reset();

	TInt Count()

		{

		return iTable.Count();

		}

protected:

	CRecordTable();

public:

	class TRecord

		{

	public:

		TInt iOffset;	// from start of file.

		TInt iLength;	// in bytes.

	public:

		TRecord(TInt aOffset, TInt aLength)

		 :	iOffset(aOffset),

		 	iLength(aLength)

			{

			}

		TBool Overlaps(const TRecord& aOther)

			{

			if (aOther.iOffset == iOffset)

				{

				return ETrue;

				}

			if (aOther.iOffset < iOffset)

				{

				return ((aOther.iOffset + aOther.iLength) >= iOffset);

				}

			return ((iOffset + iLength) > aOther.iOffset);

			}

		};

private:

	RArray<TRecord> iTable;

	};

#endif