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// Internal Headers
#include "proximitysensorsym.h"

/**
 * set the id of the proximity sensor
 */
const char *CProximitySensorSym::id("sym.proximity");

/**
 * Factory function, this is used to create the proximity sensor object
 * @return CProximitySensorSym if successful, leaves on failure
 */
CProximitySensorSym* CProximitySensorSym::NewL(QSensor *sensor)
    {
    CProximitySensorSym* self = new (ELeave) CProximitySensorSym(sensor);
    CleanupStack::PushL(self);
    self->ConstructL();
    CleanupStack::Pop();
    return self;    
    }

/**
 * Destructor
 * Closes the backend resources
 */
CProximitySensorSym::~CProximitySensorSym()
    {
    // Release the backend resources
    Close();
    }

/**
 * Default constructor
 */
CProximitySensorSym::CProximitySensorSym(QSensor *sensor):CSensorBackendSym(sensor)
        {
        setReading<QProximityReading>(&iReading);    
        iBackendData.iSensorType = KSensrvChannelTypeIdProximityMonitor;
        }

/*
 * RecvData is used to retrieve the sensor reading from sensor server
 * It is implemented here to handle proximity sensor specific
 * reading data and provides conversion and utility code
 */ 
void CProximitySensorSym::RecvData(CSensrvChannel &aChannel)
    {
    TPckg<TSensrvProximityData> proxpkg( iData );
    TInt ret = aChannel.GetData( proxpkg );
    if(KErrNone != ret)
        {
        // If there is no reading available, return without setting
        return;
        }
    // Get a lock on the reading data
    iBackendData.iReadingLock.Wait();    
    iReading.setClose(iData.iProximityState == TSensrvProximityData::EProximityDiscernible);
    // Set the timestamp
    iReading.setTimestamp(iData.iTimeStamp.Int64());
    // Release the lock
    iBackendData.iReadingLock.Signal();
    }

/**
 * Second phase constructor
 * Initialize the backend resources
 */
void CProximitySensorSym::ConstructL()
    {
    //Initialize the backend resources
    InitializeL();
    }