/*

* Copyright (c) 2006-2007 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:    Class for reserving ports on specific range

*

*/

#ifndef C_CNCMPORTSTORE_H

#define C_CNCMPORTSTORE_H

#include <e32base.h>

/**

 *  Class for reserving ports on specific range

 *

 *  @lib connectionmux.lib

 *  @since S60 v3.2

 */

class CNcmPortStore : public CBase

    {

public:

    /**

     * Two-phased constructor

     *

     * @param   aStartPort     Port range start for session

     * @param   aStopPort      Port range stop for session

     */

    static CNcmPortStore* NewL( TUint aStartPort, TUint aStopPort );

    /**

     * Two-phased constructor

     *

     * @param   aStartPort     Port range start for session

     * @param   aStopPort      Port range stop for session

     */

    static CNcmPortStore* NewLC( TUint aStartPort, TUint aStopPort );

    /**

     * Destructor

     */

    virtual ~CNcmPortStore();

    /**

     * Retrives a free port for usage

     *

     * @since   S60 v3.2

     * @return  Usable port, or zero on error

     */

    IMPORT_C TUint Port();

    /**

     * Frees reserved port

     *

     * @since S60 v3.2

     * @param aPort         Port to be freed

     */

    IMPORT_C void FreePort( TUint aPort );

private:

    CNcmPortStore( TUint aStartPort, TUint aStopPort );

private: // data

    /**

     * Reserved ports are stored here

     */

    RArray<TUint> iReservedPorts;

    /**

     * First port on range

     */

    TUint iStartPort;

    /**

     * Last port on range

     */

    TUint iStopPort;

    };

#endif // C_CNCMPORTSTORE_H