1 /*

     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  List of SensorConnections

    15 *

    16 */

    17 

    18 

    19 // INTERNAL INCLUDES

    20 #include "sensorconnectionlist.h"

    21 #include "sensorconnection.h"

    22 #include "logger.h"

    23 

    24 // OS SPECIFIC INCLUDE

    25 #include "csensorfinder.h"

    26 

    27 SensorConnectionList::SensorConnectionList() :

    28         iSensors(NULL)

    29 {

    30     JELOG2(ESensor);

    31     iFinder = new CSensorFinder();

    32 }

    33 

    34 SensorConnectionList::~SensorConnectionList()

    35 {

    36     JELOG2(ESensor);

    37     delete iFinder;

    38     // Delete all connections

    39     SensorList* list = iSensors;

    40     while (list && list->iNext)

    41     {

    42         delete list->iSensorConnection;

    43         SensorList* next = list->iNext;

    44         delete list;

    45         list = next;

    46     }

    47     delete list;

    48 }

    49 

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

    51 {

    52     JELOG2(ESensor);

    53     return iFinder->FindSensors(aSensorCount);

    54 }

    55 

    56 SensorConnection* SensorConnectionList::CreateSensorConnection(int aSensorIndex)

    57 {

    58     JELOG2(ESensor);

    59     if (!iSensors)

    60     {

    61         iSensors = new SensorList();

    62         iSensors->iNext = NULL;

    63         iSensors->iSensorConnection = NULL;

    64     }

    65     SensorList* senList = iSensors;

    66     // Find last

    67     while (senList->iNext)

    68     {

    69         senList = senList->iNext;

    70     }

    71     // Create next object to list

    72     SensorList* next = new SensorList();

    73     if (!next)

    74     {

    75         return NULL;

    76     }

    77     next->iNext = NULL;

    78     next->iSensorConnection = NULL;

    79 

    80     //  Create actual sensor

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

    82     if (!sensor)

    83     {

    84         delete next;

    85         return NULL;

    86     }

    87 

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

    89     senList->iSensorConnection = new SensorConnection(sensor);

    90     if (!senList->iSensorConnection)

    91     {

    92         delete sensor;

    93         delete next;

    94         return NULL;

    95     }

    96     senList->iNext = next;

    97     return senList->iSensorConnection;

    98 }

    99 

   100 void SensorConnectionList::RemoveConnection(SensorConnection* aConnection)

   101 {

   102     JELOG2(ESensor);

   103     SensorList* currP = iSensors;

   104     SensorList* prevP = NULL;

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

   106     {

   107         if (currP->iSensorConnection == aConnection)

   108         {

   109             if (prevP == NULL)

   110             {

   111                 iSensors = currP->iNext;

   112             }

   113             else

   114             {

   115                 prevP->iNext = currP->iNext;

   116             }

   117             delete currP->iSensorConnection; // Delete connection

   118             delete currP; // Delete node

   119             return;

   120         }

   121     }

   122 }

   123 

   124 // End of file