/*

* Copyright (c) 2002-2005 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:  Event queue stores an event until all the clients can

*                receive it.

*

*/

#ifndef CONNMONCEVENTQUEUE_H

#define CONNMONCEVENTQUEUE_H

#include <rconnmon.h>

#include "ConnMonDef.h"

class CConnMonSession;

/**

* TEventNode

*/

class TEventNode

    {

private:

    TSglQueLink iLink;

public:

    TEvent iEvent;

    };

/**

* CEventQueue

* Singly linked list.

*/

NONSHARABLE_CLASS( CEventQueue ) : public CBase

    {

public:

    /**

     * Constructor.

     */

    void ConstructL( CConnMonServer* aServer );

    /**

     * Destructor.

     */

    ~CEventQueue();

public:

    /**

     * Adds a new event to the queue.

     * @param aEventInfo Event to be added.

     */

    void Add( const TEventInfo& aEventInfo, const TUint8* aPtr = NULL, TInt aSize = 0 );

    /**

     * Scans the event queue to find a new event for the session.

     * @param aSession The session requesting a new event.

     */

    void CheckEvents( CConnMonSession* aSession );

    /**

     * Removes an event from the event queue.

     * @param aEventNode Pointer to event node to be removed.

     */

    void FreeEvent( TEventNode* aEventNode );

    /**

     * Returns the time of the latest event.

     * @return TTime.

     */

    TTime LastEventTime() const

        {

        return iLastEventTime;

        }

private: // Data

    // Pointer to the server

    CConnMonServer* iServer;

    // Time of the latest event

    TTime iLastEventTime;

    // List of events

    TSglQue<TEventNode> iEvents;

    // List of free slots

    TSglQue<TEventNode> iSlots;

    };

#endif // CONNMONCEVENTQUEUE_H

// End-of-file