// Copyright (c) 2007-2010 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:

// Trace Core

//

#ifndef __TRACECORESETTINGS_H__

#define __TRACECORESETTINGS_H__

// Include files

#include <kernel/kernel.h>

/**

 * Interface for saving and restoring trace activation settings

 */

class DTraceCoreSettings : public DBase

    {

public:

    /**

     * Constructor

     *

     * @param aWriterType Type of writer 

     */

    IMPORT_C DTraceCoreSettings();

    /**

     * Destructor

     */    

    IMPORT_C virtual ~DTraceCoreSettings();

    /**

     * Registers this activation settings saver to TraceCore. Only one saver can register.

     */

    IMPORT_C TInt Register();

    /**

     * Write settings

     * 

     * @param aBuffer Buffer to save

     */

    virtual void Write( const TUint8* aBuffer, TUint32 aLength ) = 0;

    /**

     * Read settings

     * 

     * @param aBuffer Buffer where to read

     * @return ETrue if buffer copied

     */

    virtual TBool Read( TUint8* aBuffer, TUint32 aLength ) = 0;

private:

    /**

     * Unregisters this activation settings saver from TraceCore.

     */

    TInt Unregister();

    };

#endif //__TRACECOREACTIVATIONSETTINGSIF_H__

// End of File