// 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 _TRACECONNECTION_H_

#define _TRACECONNECTION_H_

#include <kernel/kernel.h>

#include <TraceCoreSubscriber.h>

/**

Handles TraceCore connection

*/

NONSHARABLE_CLASS(DTraceConnection) : public MTraceCoreNotificationReceiver, 

									  public DTraceCoreSubscriber

    {

    public:

    DTraceConnection( );

    DTraceConnection( DTcChannel* aTCChannel );

    ~DTraceConnection();

    // Virtual from MTraceCoreNotificationReceiver. Called from TraceCore.

    void TraceActivated( TUint32 aComponentId, TUint16 aGroupId  );

    void TraceDeactivated( TUint32 aComponentId, TUint16 aGroupId  );

    // Called from DTcChannel

    TInt RegisterNotificationReceiver( TUint32 aComponentId, TInt32 aGroupId );

    void UnregisterNotificationReceiver( TUint32 aComponentId, TInt32 aGroupId  );

    // From DTraceCoreSubscriber

    void MessageReceived( TTraceMessage &aMsg );

    TInt DoSendMessage( TTraceMessage &aMsg );

    private:

    DTcChannel* iTcChannel;

    };

#endif /*_TRACECONNECTION_H_*/