/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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 __P2PLINK_H__

#define __P2PLINK_H__

// Includes

#include "mmuxlinkif.h"         // For MMuxLinkIf

#include "p2prouterlinkifs.h"   // For MP2PRouterLinkIf

// Forward declarations

class MMuxLinkIf;

class MLinkMuxIf;

/*

* Class repsenting point-to-point router link to transceiver.

* Each link has one transceiver and one protocol.

* Responsible of storing the transceiver related state information.

*/

NONSHARABLE_CLASS( DP2PLink ) : public DBase, public MMuxLinkIf, public MP2PRouterLinkIf

    {

    public:

        /*

        * Default contructor

        */

        DP2PLink();

        /*

        * Contructor

        * @param aRouter, router interface

        * @param aProtocolId, protocol id of this link

        * @param aTrxId, transceiver id of this link.

        */

        DP2PLink( MP2PLinkRouterIf* aRouter, const TUint8 aProtocolId, const TUint8 aTrxId );

        /*

        * Destructor

        */

        ~DP2PLink();

        // From MMuxLinkIf start

        /*

        * See comments from MMuxLinkIf.

        */

        void Receive( TDes8& aMsg );

        /*

        * See comments from MMuxLinkIf.

        */

        void EnqueTrxPresenceChangedDfc( TBool aPresent );

        // From MMuxLinkIf end

        // From MP2PRouterLinkIf start

        /*

        * See comments from MP2PRouterLinkIf.

        */

        TBool TrxPresent();

        /*

        * See comments from MP2PRouterLinkIf.

        */

        void Release();

        /*

        * See comments from MP2PRouterLinkIf.

        */

        void Send( TDes8& aMsg );

        // From MP2PRouterLinkIf end

    private:

        // Added convention:

        // Prefix "iSh" means shared member variable

        // Prefix "gSh" means shared global variable

        // Not owned, can be called from 1...N thread, router responsible of it's own states guarding.

        MP2PLinkRouterIf*   iRouter;

        // Not owned, called always from one router thread.

        MLinkMuxIf*         iMux;

        // Links P2P protocol unique identifier.

        // Written only once fron one thread no need to sync.

        TUint8              iProtocolId;

        // Links transceiver unique identifier.

        TUint8              iShTrxId;

    };

#endif /* __P2PLINK_H__ */