/*

* Copyright (c) 2008 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:  List of SensorConnections

*

*/

// INTERNAL INCLUDES

#include "sensorconnectionlist.h"

#include "sensorconnection.h"

#include "logger.h"

// OS SPECIFIC INCLUDE

#include "csensorfinder.h"

SensorConnectionList::SensorConnectionList() :

        iSensors(NULL)

{

    JELOG2(ESensor);

    iFinder = new CSensorFinder();

}

SensorConnectionList::~SensorConnectionList()

{

    JELOG2(ESensor);

    delete iFinder;

    // Delete all connections

    SensorList* list = iSensors;

    while (list && list->iNext)

    {

        delete list->iSensorConnection;

        SensorList* next = list->iNext;

        delete list;

        list = next;

    }

    delete list;

}

unsigned short** SensorConnectionList::InitSensors(int* aSensorCount)

{

    JELOG2(ESensor);

    return iFinder->FindSensors(aSensorCount);

}

SensorConnection* SensorConnectionList::CreateSensorConnection(int aSensorIndex)

{

    JELOG2(ESensor);

    if (!iSensors)

    {

        iSensors = new SensorList();

        iSensors->iNext = NULL;

        iSensors->iSensorConnection = NULL;

    }

    SensorList* senList = iSensors;

    // Find last

    while (senList->iNext)

    {

        senList = senList->iNext;

    }

    // Create next object to list

    SensorList* next = new SensorList();

    if (!next)

    {

        return NULL;

    }

    next->iNext = NULL;

    next->iSensorConnection = NULL;

    //  Create actual sensor

    Sensor* sensor = iFinder->CreateSensor(aSensorIndex);

    if (!sensor)

    {

        delete next;

        return NULL;

    }

    // Create sensor connection, and assign values to current list item

    senList->iSensorConnection = new SensorConnection(sensor);

    if (!senList->iSensorConnection)

    {

        delete sensor;

        delete next;

        return NULL;

    }

    senList->iNext = next;

    return senList->iSensorConnection;

}

void SensorConnectionList::RemoveConnection(SensorConnection* aConnection)

{

    JELOG2(ESensor);

    SensorList* currP = iSensors;

    SensorList* prevP = NULL;

    for (; currP != NULL; prevP = currP, currP = currP->iNext)

    {

        if (currP->iSensorConnection == aConnection)

        {

            if (prevP == NULL)

            {

                iSensors = currP->iNext;

            }

            else

            {

                prevP->iNext = currP->iNext;

            }

            delete currP->iSensorConnection; // Delete connection

            delete currP; // Delete node

            return;

        }

    }

}

// End of file