author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 23 Jun 2010 18:07:10 +0300 | |
changeset 47 | f40128debb5d |
parent 21 | 2a9601315dfc |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008 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 "Eclipse Public License v1.0" |
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Revision: v2.1.22
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* which accompanies this distribution, and is available |
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Revision: v2.1.22
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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Revision: v2.1.22
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* Initial Contributors: |
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Revision: v2.1.22
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* Nokia Corporation - initial contribution. |
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Revision: v2.1.22
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* |
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* Contributors: |
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* |
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Revision: v2.1.22
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* Description: Base class for Publish & Subscripe -type Sensors |
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* |
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*/ |
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|
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#ifndef CPSSENSORBASE_H |
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#define CPSSENSORBASE_H |
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|
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#include <e32property.h> // Publish & Subscribe |
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#include "csensorbase.h" |
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|
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// Forward declarations |
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class CPSSensorBaseAsyncQuery; |
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|
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class CPSSensorBase : public CSensorBase |
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{ |
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// Asynchronous query helper class |
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class CPSSensorBaseAsyncQuery : public CActive |
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{ |
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public: |
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static CPSSensorBaseAsyncQuery* NewL(CPSSensorBase& aSensorBase, |
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TUid aPropertyCategory, TInt aPropertyKey); |
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virtual ~CPSSensorBaseAsyncQuery(); |
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protected: |
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void ConstructL(TUid aPropertyCategory, TInt aPropertyKey); |
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CPSSensorBaseAsyncQuery(CPSSensorBase& aSensorBase); |
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public: // From CActive |
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void RunL(); |
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void DoCancel(); |
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public: // New methods |
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void NotifyOnChange(); |
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private: // Members |
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CPSSensorBase& iSensorBase; |
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/** |
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* Property handle used to query property changes |
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*/ |
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RProperty iProperty; |
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}; |
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// Poll timer helper class |
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class CPSSensorDataListenTimer : public CTimer |
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{ |
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public: |
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static CPSSensorDataListenTimer* NewL(CPSSensorBase& iSensorBase); |
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virtual ~CPSSensorDataListenTimer(); |
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protected: |
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CPSSensorDataListenTimer(CPSSensorBase& iSensorBase); |
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public: // from CTimer |
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void RunL(); |
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void DoCancel(); |
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public: // Members |
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CPSSensorBase& iSensorBase; |
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}; |
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public: |
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// Destructor |
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virtual ~CPSSensorBase(); |
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protected: |
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// Second phase constructor |
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void ConstructL(TUid aPropertyCategory, TInt aPropertyKey); |
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// Constructor |
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CPSSensorBase(TTimeIntervalMicroSeconds32 aPollInterval); |
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public: // From Sensor |
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virtual int OpenChannel(SensorListener* aListener); |
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public: // From CSensorBase |
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virtual TReal InterpretValue(TReal aValue) = 0; |
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TBool EvaluateConditions(TInt aValue, TInt aChannelId); |
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void AddConditionL(void** aHandle, int aChannelId, double aLowerLimit, |
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double aUpperLimit, int aLowerOp, int aUpperOp); |
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void StartDataListeningL(); |
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void StartConditionListeningL(); |
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void CancelDataListeningL(); |
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void CloseChannelL(); |
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void StopConditionListeningL(); |
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private: // New methods |
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/** |
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* Leaving version of OpenChannel |
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*/ |
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void OpenChannelL(SensorListener* aListener); |
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/** |
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* Reset data object and those member variables that are |
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* involved in data accumulation round. |
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*/ |
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void ResetAccumulationData(); |
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/** |
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* Callback method called by RunL of the poll timer. |
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*/ |
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void AccumulateDataL(); |
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/** |
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* Used by AccumulateDataL to send data to Java side and do |
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* necessary cleanup. |
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*/ |
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void SendData(); |
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/** |
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* Called by RunL of iAsyncQuery when query is complete |
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*/ |
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void PropertyValueChanged(); |
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private: // Members |
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/** |
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* Property values |
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*/ |
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TUid iPropertyCategory; |
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TInt iPropertyKey; |
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/** |
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* Async query handler used to get property value change |
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* notifications |
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*/ |
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CPSSensorBaseAsyncQuery* iAsyncQuery; |
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|
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/** |
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* Used to get property values periodically. |
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*/ |
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CTimer* iPollTimer; |
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/** |
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* Property handle used to get property value |
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*/ |
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RProperty iProperty; |
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|
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/** |
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* Beat interval used in periodic polling |
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*/ |
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TTimeIntervalMicroSeconds32 iPollInterval; |
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|
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/** |
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* Values used in asynchronous polling |
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*/ |
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TTime iStartTime; |
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TInt iBufferPosition; |
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}; |
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|
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#endif // CPSSENSORBASE_H |