author | Simon Howkins <simonh@symbian.org> |
Mon, 15 Nov 2010 15:22:23 +0000 | |
branch | RCL_3 |
changeset 46 | 4bd0ef495c42 |
parent 0 | 522cd55cc3d7 |
permissions | -rw-r--r-- |
0
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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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* 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: Notifier class for any change in Storage API dtabase. |
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* |
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*/ |
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|
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|
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// System Includes |
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#include <centralrepository.h> |
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|
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// User Includes |
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#include "evtdbnotifier.h" |
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#include "evtdebug.h" |
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|
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// ================ Member funtions for CEvtDatabase class ================== |
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|
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// --------------------------------------------------------------------------- |
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// CEvtDbNotifier::CEvtDbNotifier |
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// --------------------------------------------------------------------------- |
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// |
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CEvtDbNotifier::CEvtDbNotifier( MEvtDbObserver& aObserver ) |
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:CActive( EPriorityStandard ), |
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iDbObserver( aObserver ) |
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{ |
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} |
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// --------------------------------------------------------------------------- |
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// CEvtDbNotifier::~CEvtDbNotifier |
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// --------------------------------------------------------------------------- |
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// |
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CEvtDbNotifier::~CEvtDbNotifier() |
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{ |
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Cancel(); |
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delete iRepository; |
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} |
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// --------------------------------------------------------------------------- |
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// CEvtDbNotifier::NewL |
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// --------------------------------------------------------------------------- |
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// |
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CEvtDbNotifier* CEvtDbNotifier::NewL( MEvtDbObserver& aObserver ) |
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{ |
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CEvtDbNotifier* self = NewLC( aObserver ); |
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CleanupStack::Pop( self ); |
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return self; |
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} |
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// --------------------------------------------------------------------------- |
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// CEvtDbNotifier::NewLC |
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// --------------------------------------------------------------------------- |
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// |
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CEvtDbNotifier* CEvtDbNotifier::NewLC( MEvtDbObserver& aObserver ) |
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{ |
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CEvtDbNotifier* self = new ( ELeave )CEvtDbNotifier( aObserver ); |
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CleanupStack::PushL( self ); |
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self->ConstructL( ); |
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return self; |
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} |
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// --------------------------------------------------------------------------- |
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// CEvtDbNotifier::ConstructL |
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// --------------------------------------------------------------------------- |
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// |
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void CEvtDbNotifier::ConstructL() |
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{ |
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EVTUIDEBUG( "+ CEvtDbNotifier::ConstructL()" ); |
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CActiveScheduler::Add(this); |
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EVTUIDEBUG( "Calling CRepository::NewL" ); |
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// Create the Central repository object notifying the Db change |
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TRAPD(err, iRepository = CRepository::NewL( TUid::Uid( KCRUidEvtStorageDb ) ) ); |
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EVTUIDEBUG1( "Calling CRepository::NewL Cenrep Error Code- %d", err ); |
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User::LeaveIfError( err ); |
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// Request for notification |
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StartNotification(); |
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EVTUIDEBUG( "- CEvtDbNotifier::ConstructL()" ); |
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} |
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// --------------------------------------------------------------------------- |
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// void CEvtDbNotifier::RunL() |
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// --------------------------------------------------------------------------- |
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// |
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void CEvtDbNotifier::RunL() |
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{ |
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EVTUIDEBUG( "+ CEvtDbNotifier::RunL()" ); |
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// resubscribe before processing new value to prevent missing updates |
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StartNotification(); |
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// processing new value |
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HandleDbChangedL(); |
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EVTUIDEBUG( "- CEvtDbNotifier::RunL()" ); |
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} |
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// --------------------------------------------------------------------------- |
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// void CEvtDbNotifier::DoCancel() |
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// --------------------------------------------------------------------------- |
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// |
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void CEvtDbNotifier::DoCancel() |
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{ |
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EVTUIDEBUG( "+ CEvtDbNotifier::DoCancel()" ); |
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// Cancel the outstanding CR notification request |
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if( iRepository ) |
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{ |
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iRepository->NotifyCancel( KEvtDbChangeType ); |
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} |
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EVTUIDEBUG( "- CEvtDbNotifier::DoCancel()" ); |
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} |
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|
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// --------------------------------------------------------------------------- |
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// TInt CEvtDbNotifier::RunError() |
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// --------------------------------------------------------------------------- |
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// |
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TInt CEvtDbNotifier::RunError( TInt aError ) |
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{ |
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return CActive::RunError( aError ); |
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} |
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|
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// --------------------------------------------------------------------------- |
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// void CEvtDbNotifier::StartNotification() |
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// --------------------------------------------------------------------------- |
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// |
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void CEvtDbNotifier::StartNotification() |
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{ |
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EVTUIDEBUG( "+ CEvtDbNotifier::StartNotification()" ); |
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if( !IsActive() ) |
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{ |
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iStatus = KRequestPending; |
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// Request for notification |
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iRepository->NotifyRequest( KEvtDbChangeType, iStatus ); |
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SetActive(); |
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} |
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EVTUIDEBUG( "- CEvtDbNotifier::StartNotification()" ); |
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} |
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|
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// --------------------------------------------------------------------------- |
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// CEvtDbNotifier::HandleDbChangedL |
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// --------------------------------------------------------------------------- |
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// |
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void CEvtDbNotifier::HandleDbChangedL( ) |
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{ |
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EVTUIDEBUG( "+ CEvtDbNotifier::HandleDbChangedL()" ); |
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// Notify the Observer for the database change type |
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iDbObserver.HandleDbChangedL( ); |
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EVTUIDEBUG( "- CEvtDbNotifier::HandleDbChangedL()" ); |
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} |
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|
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// --------------------------------------------------------------------------- |
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// CEvtDbNotifier::DbChangedL |
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// --------------------------------------------------------------------------- |
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// |
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void CEvtDbNotifier::DbChangedL( ) |
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{ |
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EVTUIDEBUG( "+ CEvtDbNotifier::DbChangedL()" ); |
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// Get the type of database change from Cenrep key |
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TInt flag = 0; |
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User::LeaveIfError( iRepository->Get( KEvtDbChangeType, flag ) ); |
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|
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EVTUIDEBUG1( "In DbChangedL Get %d", flag ); |
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flag = ( flag == 0 ) ? 1 : 0; |
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EVTUIDEBUG1( "In DbChangedL Set %d", flag ); |
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|
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// Set the KEvtDbChangeType key of the Cenrep, So that other database |
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// connection can get the notifications |
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User::LeaveIfError( iRepository->Set( KEvtDbChangeType, flag ) ); |
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EVTUIDEBUG( "- CEvtDbNotifier::DbChangedL()" ); |
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} |
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|
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// End of File |