/*

* Copyright (c) 2007-2009 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:  Header file for class CUsbDevConStarter

*

*/

#ifndef CUSBDEVCONSTARTER_H

#define CUSBDEVCONSTARTER_H

#include <e32base.h>

/**

 * class for starting usbdevcon process

 * This class will start usbdevcon process. It also supervises its

 * termination. 

 * @since S60 v5.0

 */

NONSHARABLE_CLASS( CUsbDevConStarter ) : public CActive

    {

public:

    //states for starting usbdevcon

    enum TUsbDevConStarterState

        {

        EIdle,

        EWaitingRendezvous,

        ERunning

        };

    static CUsbDevConStarter* NewL();

    /**

     * Destructor.

     */

    virtual ~CUsbDevConStarter();

    /**

     * Start usbdevcon process

     * The usbdevcon process is started, unless it is already running.

     *

     * @since S60 5.0

     */

    void Start();

    /**

     * Logon for usbdevcon process termination

     *

     * @since S60 5.0

     */

    void Logon();

    /**

     * StopRestarting prevents usbdevcon restart

     * If usbdevcon terminates, it is not restarted, if StopRestarting has

     * been called. 

     *

     * @since S60 5.0

     */

    void StopRestarting();

private: // From base class

    /**

     * From CActive.

     * Handles the process termination

     *

     * @since Series 60 5.0

     */

    void RunL();

    /**

     * From CActive.

     * Never called in this implementation

     *

     * @since Series 60 5.0

     * @param aError The error returned

     * @return error

     */

    TInt RunError( TInt aError );

    /**

     * From CActive

     * Cancels outstanding request.

     * Note that process may be running after Cancel. If Start is called

     * after Cancel, another process will be started. 

     *

     * @since Series 60 5.0

     */

    void DoCancel();

private:

    CUsbDevConStarter();

    void ConstructL();

private: // data

    /**

     * Handle to UsbDevCon process

     */

    RProcess iProcess;

    /**

     * Is set to run. 

     */

    TBool iStarted;

    /**

     * State of starting usbdevcon

     */

    TUsbDevConStarterState iState;

    };

#endif // CUSBDEVCONSTARTER_H

// End of file