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/*
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* Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Callback class declaration for sensor service API
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*
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*/
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#ifndef CSENSORCALLBACK_H
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#define CSENSORCALLBACK_H
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#include <Liwserviceifbase.h>
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#include <LiwCommon.h>
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#include <sensrvtypes.h>
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#include <sensrvdatalistener.h>
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#include <sensrvchannelinfo.h>
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#include "sensorinterface.hrh"
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#include "sensorinterface.h"
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/**
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* This class implements sensor callback.
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* An object of this class gets instantiated by sensor
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* interface class when a request for getting sensor data
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* arrives from consumer.
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* @since S60 v5.0
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*/
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class CSensorCallback : public CBase,
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public MSensrvDataListener
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{
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public:
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static CSensorCallback* NewL( MLiwNotifyCallback* aCallBack,
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TInt32 aTransactionid );
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virtual ~CSensorCallback();
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/**
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* Indicates data is available in the receiving buffer. A client can read the
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* data through ReadData()-function in a related channel object. Data is valid until
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* the data received notification will occurs again.
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*
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* @since S60 5.0
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* @param[in] aChannel Reference to the related channel object
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* @param[in] aCount Data object count in receiving buffer.
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* @param[in] aDataLost Data object lost count.
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*/
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void DataReceived( CSensrvChannel& aChannel,
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TInt aCount,
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TInt aDataLost );
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/**
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* Data listening failed.
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* If error was fatal, channel has also been closed and sensor server session terminated.
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* If error was minor, some data has potentially been lost.
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*
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* @param[in] aChannel Reference to the related channel object
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* @param[in] aError Error code.
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* @since S60 5.0
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*/
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void DataError( CSensrvChannel& aChannel,
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TSensrvErrorSeverity aError);
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/**
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* Send Received sensor data back to the consumer
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* @param[in] aChannel Reference to the related channel object
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* @since S60 5.0
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*/
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void DataNotificationL( CSensrvChannel& aChannel );
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/**
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* Returns a pointer to a specified interface - to allow future extension
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* of this class without breaking binary compatibility
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*
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* @since S60 5.0
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* @param aInterfaceUid Identifier of the interface to be retrieved
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* @param aInterface A reference to a pointer that retrieves the specified interface.
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*/
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void GetDataListenerInterfaceL( TUid aInterfaceUid,
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TAny*& aInterface );
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private:
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void ConstructL();
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CSensorCallback( MLiwNotifyCallback* aCallBack,
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TInt32 aTransactionid );
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private:
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MLiwNotifyCallback* iCallBack;
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TInt32 iTransactionId;
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};
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#endif // CSENSORCALLBACK_H
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