// 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:

//

#ifndef     __TRACEONACTIVATION_H__

#define     __TRACEONACTIVATION_H__

#include <kernel/kernel.h>

#include <kernel/kern_priv.h>

#include <TraceCoreNotificationReceiver.h>

//- Forward Declarations ----------------------------------------------------

class TTraceOnActivationParams;

class DTcChannel;

class DTraceConnection;

/**

Logical device factory object

*/

class DTcFactory : public DLogicalDevice

    {

    public:

        DTcFactory();

        virtual ~DTcFactory();

        virtual TInt Install();

        virtual void GetCaps(TDes8& aDes) const;

        virtual TInt Create(DLogicalChannelBase*& aChannel);	

    };

/**

The Kernel side logical channel

*/

class DTcChannel : public DLogicalChannel

    {

    public:

        DTcChannel(DLogicalDevice* aDevice);

        virtual ~DTcChannel();

        virtual TInt DoCreate(TInt aUnit, const TDesC8* aInfo, const TVersion& aVer);

        virtual void HandleMsg(TMessageBase* aMsg);

        TInt DoControl(TInt aFunction, TAny* a1);

        TInt RegisterNotificationReceiver( TTraceOnActivationParams* aParameters );

        TInt UnregisterNotificationReceiver( TTraceOnActivationParams* aParameters );

        virtual TInt TraceActivated( TUint32 aComponentId, TUint16 aGroupId );

        virtual TInt TraceDeactivated( TUint32 aComponentId, TUint16 aGroupId );

    private:

        DThread* iClientThread;   // Store the pointer to the user thread

        DTraceConnection* iTraceConnection;

        TDfcQue* iActivationQue;

    };

#endif      //  __TRACEONACTIVATION_H__