author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 14 Apr 2010 15:50:30 +0300 | |
branch | RCL_3 |
changeset 14 | 3a25f69541ff |
parent 0 | 522cd55cc3d7 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 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 "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: Location Centre Server Engine Object. |
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* |
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*/ |
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#ifndef C_LCSERVERENGINE_H |
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#define C_LCSERVERENGINE_H |
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// SYSTEM INCLUDES |
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#include <e32base.h> |
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#include <lclocationappfilter.h> |
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// USER INCLUDES |
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#include "lcipcparams.h" |
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#include "lcregistryobserver.h" |
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// FORWARD DECLARATIONS |
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class CLcRegistry; |
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class MLcServerEngineObserver; |
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/** |
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* Location Centre server engine. |
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* |
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* This class handles all the requests for the Location Centre Server. The |
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* requests from the Server session objects are transferred to this object |
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* which then handles the requests. There is only one instance of this |
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* class for the entire Server Engine. This class also contains the Location |
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* Centre registry and observes for anychanges to the Registry. |
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* |
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* @since S60 v5.0 |
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*/ |
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NONSHARABLE_CLASS( CLcServerEngine ): public CBase, |
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public MLcRegistryObserver |
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{ |
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public: |
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/** |
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* Constructs a new instance of Location Centre server engine. |
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* |
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* @param[in] aObserver Observer to the Location Centre Server |
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* Engine. |
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* @return The new instance of Location Centre server engine object. |
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* @leave System wide error code if the object creation fails. |
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*/ |
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static CLcServerEngine* NewL( |
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MLcServerEngineObserver& aObserver ); |
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/** |
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* Constructs a new instance of Location Centre server engine. |
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* Leaves the created instance on the cleanup stack. |
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* |
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* @param[in] aObserver Observer to the Location Centre Server |
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* Engine. |
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* @return The new instance of Location Centre server engine object. |
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* @leave System wide error code if the object creation fails. |
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*/ |
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static CLcServerEngine* NewLC( |
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MLcServerEngineObserver& aObserver ); |
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/** |
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* C++ Destructor. |
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* Frees all the resources associated with this Location Centre |
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* server engine |
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*/ |
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virtual ~CLcServerEngine(); |
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/** |
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* Services the Client Request. The Engine provides a one place |
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* destination for servicing all Client request. If the registry |
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* is under updation, then the request is queued and the request |
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* is served after the updation is completed. |
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* |
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* @param[in] aMessage The Message requets which needs to be served. |
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*/ |
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void DoServiceL( const RMessage2& aMessage ); |
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public: // Inherited from MLcRegistryObserver |
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void RegistryUnderUpdation(); |
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void RegistryUpdated(); |
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private: |
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/** |
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* C++ Default constructor |
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*/ |
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CLcServerEngine( MLcServerEngineObserver& aObserver ); |
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/** |
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* Second phase of the two phase constructor |
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*/ |
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void ConstructL(); |
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/** |
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* Services all the Requets which are outstanding. The implementation |
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* of the Engine class ensures that all this function is called |
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* only when the Engine is in a consistent state. |
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*/ |
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void ServiceRequests(); |
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|
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/** |
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* Services a client request which is outstanding. |
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* |
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* @param[in] aMessage Request message which is outstanding |
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*/ |
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void ServiceRequestL( RMessage2& aMessage ); |
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|
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/** |
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* Filters the List of Location based Application based on the |
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* System Characteristics and Application Characteristics. |
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* |
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* @param[in] aAppFilter Filter properties that need to be applied |
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* on the list of Location based Applications. |
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* @param[out] aFilteredAppArray Array of Location based Applications after |
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* filtering. |
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*/ |
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void GetFilteredAppsL( |
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TLcLocationAppFilter& aAppFilter, |
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RLcIpcAppInfoArray& aFilteredAppArray ); |
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132 |
|
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/** |
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* Obtains a specified set of Location based Applications. |
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* |
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* @param[in] aSpecifedApps List of Specified Applications whose |
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* description is sought. |
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* @param[out] aFilteredAppArray Array of specified Location based |
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* Applications. |
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*/ |
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void GetSpecifiedAppsL( |
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RLcIpcAppIdArray& aSpecifedApps, |
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RLcIpcAppInfoArray& aSpecifiedAppArray ); |
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/** |
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* Obtains a list of Location based Application without a specified set |
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* of Location based Applications. |
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* |
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* @param[in] aSpecifedApps List of Specified Applications whose |
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* description is sought. |
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* @param[out] aFilteredAppArray Array of Location based Applications |
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* without the specified list. |
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*/ |
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void GetWithoutSpecifiedAppsL( |
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RLcIpcAppIdArray& aSpecifedApps, |
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RLcIpcAppInfoArray& aSpecifiedAppArray ); |
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156 |
|
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/** |
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* Compares a filter value under specifed configurations. |
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* In the usage of this function, the Engine passes the filter requested by |
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* the Client application as the first parameter and compares it with |
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* the filter of the Location based Application to determine whether the |
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* application satisfies the required filter configuration. |
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* |
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* @param[in] aFilter New filter parameter. |
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* @param[in] aFiltertoCompare Filter to which the filter passed in the first |
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* argument must be compared with. |
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* @param[in] aFilterConfig Filter configuration which should be used for |
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* comparison. |
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*/ |
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TBool Compare( TUint32 aFilter, |
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TUint32 aFiltertoCompare, |
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TInt aFilterConfig ); |
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173 |
|
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/** |
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* Compares the SID of the application being processed currently with that of |
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* the message which is handled. This is needed to ensure that the application |
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* which requested for the list of Location based Applications does not |
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* figure in the list requested. |
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* |
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* @param[in] aAppSid SID of the application. |
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* @return TBool, ETrue if the SID matches |
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* EFalse if the SID doesnt match |
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*/ |
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TBool IsSameSID( const TDesC& aAppSid ); |
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|
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private: |
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/** |
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* Location Centre Registry object. |
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* |
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* Owns. |
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*/ |
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CLcRegistry* iRegistry; |
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193 |
|
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/** |
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* Array of messages which need to be serviced. This class doesn't |
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* own these message objects but just holds a reference to them. |
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*/ |
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RPointerArray< RMessage2 > iMessageArray; |
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199 |
|
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/** |
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* Observer to the Location Centre Server Engine class. |
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*/ |
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MLcServerEngineObserver& iObserver; |
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204 |
|
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/** |
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* Boolean value to indicate whether the Location Centre Registry |
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* is currently under updation. This is required because we |
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* cannot fetch the Registry values when its under updation. |
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*/ |
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TBool iRegistryUnderUpdate; |
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|
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/** |
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* SID of the process which has initiated the current request |
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*/ |
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TUint32 iCurrentRequestorSid; |
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}; |
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#endif // C_LCSERVERENGINE_H |