author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 21 Jun 2010 17:43:00 +0300 | |
branch | RCL_3 |
changeset 14 | 13838cf40350 |
parent 0 | c40eb8fe8501 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2002-2005 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: Factory class for timers |
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* |
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*/ |
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/* |
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* %version: 13 % |
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*/ |
0
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#include "wlanscanresultcache.h" |
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#include "am_debug.h" |
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// ============================ MEMBER FUNCTIONS =============================== |
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// ----------------------------------------------------------------------------- |
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// CWlanScanResultCache::NewL |
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// ----------------------------------------------------------------------------- |
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// |
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CWlanScanResultCache* CWlanScanResultCache::NewL() |
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{ |
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DEBUG( "CWlanScanResultCache::NewL()" ); |
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CWlanScanResultCache* self = new(ELeave)CWlanScanResultCache(); |
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CleanupStack::PushL( self ); |
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self->ConstructL(); |
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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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// CWlanScanResultCache::ConstructL |
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// ----------------------------------------------------------------------------- |
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// |
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void CWlanScanResultCache::ConstructL() |
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{ |
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DEBUG( "CWlanScanResultCache::ConstructL()" ); |
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iScanList = new(ELeave) ScanList(); |
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} |
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// ----------------------------------------------------------------------------- |
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// CWlanScanResultCache::CWlanScanResultCache |
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// ----------------------------------------------------------------------------- |
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// |
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CWlanScanResultCache::CWlanScanResultCache() : |
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iScanList( NULL ), |
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iScanListTimeStamp( 0 ), |
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iIapListTimeStamp( 0 ) |
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{ |
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DEBUG( "CWlanScanResultCache::CWlanScanResultCache()" ); |
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} |
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// ----------------------------------------------------------------------------- |
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// CWlanScanResultCache::~CWlanScanResultCache |
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// ----------------------------------------------------------------------------- |
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// |
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CWlanScanResultCache::~CWlanScanResultCache() |
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{ |
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DEBUG( "CWlanScanResultCache::~CWlanScanResultCache()" ); |
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delete iScanList; |
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iIapList.Close(); |
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iAvailableIapList.Close(); |
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iAvailableNetworkList.Close(); |
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} |
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// ----------------------------------------------------------------------------- |
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// CWlanScanResultCache::UpdateScanList |
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// ----------------------------------------------------------------------------- |
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// |
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void CWlanScanResultCache::UpdateScanList( |
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ScanList* aScanList ) |
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{ |
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DEBUG( "CWlanScanResultCache::UpdateScanList()" ); |
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delete iScanList; |
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iScanList = aScanList; // take ownership |
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iScanListTimeStamp.HomeTime(); |
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} |
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// ----------------------------------------------------------------------------- |
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// CWlanScanResultCache::GetScanList |
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// ----------------------------------------------------------------------------- |
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// |
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ScanList* CWlanScanResultCache::GetScanList( |
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TUint aCacheLifetime ) |
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{ |
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DEBUG( "CWlanScanResultCache::GetScanList()" ); |
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TTime currentTime(0); |
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currentTime.HomeTime(); |
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TTimeIntervalSeconds difference(0); |
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TInt overflow = currentTime.SecondsFrom( iScanListTimeStamp, difference ); |
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if( difference.Int() > aCacheLifetime || difference.Int() < 0 || overflow ) |
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107 |
{ |
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DEBUG2( "CWlanScanResultCache::GetScanList() - results are too old, difference is %d, overflow is %d", |
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difference.Int(), overflow ); |
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return NULL; |
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} |
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else |
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{ |
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DEBUG1( "CWlanScanResultCache::GetScanList() - old results are still valid, difference is %u", |
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difference.Int() ); |
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return iScanList; |
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} |
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} |
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119 |
|
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// ----------------------------------------------------------------------------- |
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// CWlanScanResultCache::UpdateAvailableNetworksList |
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// ----------------------------------------------------------------------------- |
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// |
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void CWlanScanResultCache::UpdateAvailableNetworksList( |
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core_type_list_c<core_iap_availability_data_s>& aIapAvailabilityList, |
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RArray<TWlanAvailableNetwork>& aNetworkList, |
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TBool& aNewIapsAvailable, |
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TBool& aOldIapsLost ) |
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{ |
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DEBUG( "CWlanScanResultCache::UpdateAvailableNetworksList()" ); |
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131 |
|
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DEBUG1( "CWlanScanResultCache::UpdateAvailableNetworksList() - %u IAP(s) available", |
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aIapAvailabilityList.count() ); |
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DEBUG1( "CWlanScanResultCache::UpdateAvailableNetworksList() - %u IAP(s) previously available", |
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iAvailableIapList.Count() ); |
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DEBUG1( "CWlanScanResultCache::UpdateAvailableNetworksList() - %u networks(s) available", |
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aNetworkList.Count() ); |
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DEBUG1( "CWlanScanResultCache::UpdateAvailableNetworksList() - %u networks(s) previously available", |
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iAvailableNetworkList.Count() ); |
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140 |
|
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const TInt oldIapCount( iAvailableIapList.Count() ); |
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const TInt newNetworkCount( aNetworkList.Count() ); |
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const TInt oldNetworkCount( iAvailableNetworkList.Count() ); |
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aNewIapsAvailable = EFalse; |
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aOldIapsLost = EFalse; |
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TIdentityRelation<TWlanAvailableNetwork> isNetworkEqual( CWlanScanResultCache::IsNetworkEqual ); |
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TIdentityRelation<TWlmAvailabilityData> isIapEqual( CWlanScanResultCache::IsIapEqual ); |
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148 |
|
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// Iterate through previously available IAPs to find lost IAPs. |
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TInt idx( 0 ); |
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//while( idx < oldIapCount && !aOldIapsLost ) |
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while( idx < oldIapCount ) |
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{ |
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const core_iap_availability_data_s* newIap = aIapAvailabilityList.first(); |
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|
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while( newIap ) |
0
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{ |
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if( newIap->id == iAvailableIapList[idx].iapId ) |
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{ |
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break; |
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} |
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162 |
|
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newIap = aIapAvailabilityList.next(); |
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} |
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165 |
|
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if( !newIap ) |
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{ |
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DEBUG1( "CWlanScanResultCache::UpdateAvailableNetworksList() - old IAP %u has been lost", |
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iAvailableIapList[idx] ); |
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aOldIapsLost = ETrue; |
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} |
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172 |
|
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++idx; |
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} |
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175 |
|
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// Iterate through available IAPs to find new IAPs. |
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const core_iap_availability_data_s* newIap = aIapAvailabilityList.first(); |
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//while( newId && !aNewIapsAvailable ) |
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while( newIap ) |
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{ |
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TWlmAvailabilityData tmp; |
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tmp.iapId = newIap->id; |
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tmp.rcpi = newIap->rcpi; |
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if ( iAvailableIapList.Find( tmp, isIapEqual ) == KErrNotFound ) |
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{ |
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DEBUG1( "CWlanScanResultCache::UpdateAvailableNetworksList() - new IAP %u has been detected", |
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newIap->id ); |
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aNewIapsAvailable = ETrue; |
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} |
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|
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newIap = aIapAvailabilityList.next(); |
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} |
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193 |
|
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// Iterate through previously available networks to find lost networks. |
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idx = 0; |
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//while ( idx < oldNetworkCount && !aOldIapsLost ) |
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while ( idx < oldNetworkCount ) |
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{ |
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if ( aNetworkList.Find( iAvailableNetworkList[idx], isNetworkEqual ) == KErrNotFound ) |
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200 |
{ |
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DEBUG1S( "CWlanScanResultCache::UpdateAvailableNetworksList() - old network has been lost, SSID ", |
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202 |
iAvailableNetworkList[idx].ssid.Length(), iAvailableNetworkList[idx].ssid.Ptr() ); |
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aOldIapsLost = ETrue; |
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204 |
} |
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++idx; |
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206 |
} |
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207 |
|
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208 |
// Iterate through available networks to find new networks. |
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idx = 0; |
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//while( idx < newNetworkCount && !aNewIapsAvailable ) |
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while( idx < newNetworkCount ) |
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{ |
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if ( iAvailableNetworkList.Find( aNetworkList[idx], isNetworkEqual ) == KErrNotFound ) |
0
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{ |
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DEBUG1S( "CWlanScanResultCache::UpdateAvailableNetworksList() - new network has been detected, SSID ", |
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aNetworkList[idx].ssid.Length(), aNetworkList[idx].ssid.Ptr() ); |
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aNewIapsAvailable = ETrue; |
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} |
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++idx; |
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} |
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221 |
|
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// Update the list |
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iAvailableIapList.Reset(); |
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iAvailableNetworkList.Reset(); |
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iIapListTimeStamp.HomeTime(); |
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|
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newIap = aIapAvailabilityList.first(); |
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while( newIap ) |
0
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{ |
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TWlmAvailabilityData tmp; |
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tmp.iapId = newIap->id; |
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tmp.rcpi = newIap->rcpi; |
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iAvailableIapList.Append( tmp ); |
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newIap = aIapAvailabilityList.next(); |
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} |
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236 |
|
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idx = 0; |
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while( idx < newNetworkCount ) |
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{ |
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iAvailableNetworkList.Append( aNetworkList[idx] ); |
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++idx; |
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} |
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} |
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244 |
|
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// ----------------------------------------------------------------------------- |
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// CWlanScanResultCache::AvailableIaps |
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// ----------------------------------------------------------------------------- |
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// |
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RArray<TWlmAvailabilityData>* CWlanScanResultCache::AvailableIaps( |
0
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RArray<TWlanLimitedIapData>& aIapList, |
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TUint aCacheLifetime ) |
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{ |
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DEBUG( "CWlanScanResultCache::AvailableIaps()" ); |
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|
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/** |
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* Take a copy of the previous IAP list since GetIapDataList() will overwrite |
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* the member variable. |
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*/ |
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RArray<TWlanLimitedIapData> iapList; |
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for( TInt idx( 0 ); idx < iIapList.Count(); ++idx ) |
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{ |
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iapList.Append( iIapList[idx] ); |
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} |
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|
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TInt ret = GetIapDataList( aIapList ); |
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if ( ret != KErrNone ) |
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{ |
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DEBUG( "CWlanScanResultCache::AvailableIaps() - unable to read list of IAPs, assuming no cache" ); |
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iapList.Close(); |
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|
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return NULL; |
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} |
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273 |
|
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TTime currentTime(0); |
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currentTime.HomeTime(); |
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TTimeIntervalSeconds difference(0); |
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277 |
|
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TInt overflow = currentTime.SecondsFrom( iIapListTimeStamp, difference ); |
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if( difference.Int() > aCacheLifetime || difference.Int() < 0 || overflow ) |
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{ |
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DEBUG2( "CWlanScanResultCache::AvailableIaps() - results are too old, difference is %d, overflow is %d", |
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difference.Int(), overflow ); |
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iapList.Close(); |
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|
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return NULL; |
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} |
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287 |
|
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/** |
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* Check whether the list of IAPs has change since last GetIapDataList(). |
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*/ |
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if ( !IsIapListEqual( aIapList, iapList ) ) |
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{ |
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DEBUG( "CWlanScanResultCache::AvailableIaps() - cache time is still valid but IAPs have changed" ); |
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iapList.Close(); |
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|
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return NULL; |
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} |
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298 |
|
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DEBUG1( "CWlanScanResultCache::AvailableIaps() - old results are still valid, difference is %u", |
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difference.Int() ); |
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iapList.Close(); |
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|
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return &iAvailableIapList; |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CWlanScanResultCache::GetIapDataList |
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// ----------------------------------------------------------------------------- |
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// |
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TInt CWlanScanResultCache::GetIapDataList( |
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RArray<TWlanLimitedIapData>& aIapList ) |
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{ |
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DEBUG( "CWlanScanResultCache::GetIapDataList()" ); |
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314 |
|
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315 |
aIapList.Reset(); |
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|
316 |
|
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317 |
/** |
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318 |
* Read all WLAN IAPs from commsdat. |
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319 |
*/ |
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320 |
CWLanSettings wlanSettings; |
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TInt ret = wlanSettings.Connect(); |
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if ( ret != KErrNone ) |
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323 |
{ |
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DEBUG1( "CWlanScanResultCache::GetIapDataList() - CWLanSettings::Connect() failed (%d)", |
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ret ); |
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|
326 |
|
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return ret; |
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} |
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329 |
|
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330 |
RArray<SWlanIAPId> wlanIapIds; |
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|
331 |
TRAP( ret, wlanSettings.GetIAPWlanServicesL( wlanIapIds ) ); |
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if( ret != KErrNone ) |
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333 |
{ |
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|
334 |
DEBUG1( "CWlanScanResultCache::GetIapDataList() - CWLanSettings::GetIAPWlanServicesL() failed (%d)", |
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335 |
ret ); |
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336 |
wlanIapIds.Close(); |
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337 |
wlanSettings.Disconnect(); |
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338 |
|
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339 |
return ret; |
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340 |
} |
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|
341 |
|
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342 |
/** |
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343 |
* Retrieve IAP data for each IAP id. |
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344 |
*/ |
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|
345 |
DEBUG1( "CWlanScanResultCache::GetIapDataList() - reading %u WLAN IAPs", |
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346 |
wlanIapIds.Count() ); |
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|
347 |
|
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348 |
for( TInt i( 0 ); i < wlanIapIds.Count(); i++ ) |
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|
349 |
{ |
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350 |
TWlanLimitedIapData iap; |
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|
351 |
iap.iapId = wlanIapIds[i].iIAPId; |
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352 |
iap.serviceId = wlanIapIds[i].iWLANRecordId; |
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|
353 |
|
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|
354 |
DEBUG1( "CWlanScanResultCache::GetIapDataList() - reading IAP %u", |
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|
355 |
wlanIapIds[i].iIAPId ); |
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|
356 |
|
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|
357 |
SWLANSettings iapData; |
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|
358 |
ret = wlanSettings.GetWlanSettings( |
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|
359 |
wlanIapIds[i].iWLANRecordId, |
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Revision: 201003
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|
360 |
iapData ); |
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|
361 |
if( ret != KErrNone ) |
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|
362 |
{ |
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|
363 |
DEBUG2( "CWlanScanResultCache::GetIapDataList() - reading of IAP %u failed (%d), ignoring", |
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|
364 |
wlanIapIds[i].iIAPId, ret ); |
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|
365 |
} |
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|
366 |
else if( iapData.SSID.Length() ) // filter out EasyWlan IAP |
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|
367 |
{ |
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|
368 |
iap.ssid.Copy( iapData.SSID ); |
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369 |
iap.usedSsid.Copy( iapData.UsedSSID ); |
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|
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iap.networkType = static_cast<EConnectionMode>( iapData.ConnectionMode ); |
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|
371 |
iap.securityMode = static_cast<EWlanSecurityMode>( iapData.SecurityMode ); |
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|
372 |
iap.isPskEnabled = iapData.EnableWpaPsk; |
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|
373 |
iap.isHidden = iapData.ScanSSID; |
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|
374 |
|
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|
375 |
aIapList.Append( iap ); |
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|
376 |
} |
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|
377 |
} |
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|
378 |
|
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|
379 |
UpdateIapList( aIapList ); |
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|
380 |
wlanIapIds.Close(); |
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|
381 |
wlanSettings.Disconnect(); |
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|
382 |
|
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|
383 |
return KErrNone; |
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|
384 |
} |
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Revision: 201003
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|
385 |
|
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|
386 |
// ----------------------------------------------------------------------------- |
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|
387 |
// CWlanScanResultCache::IsNetworkEqual |
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388 |
// ----------------------------------------------------------------------------- |
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389 |
// |
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|
390 |
TBool CWlanScanResultCache::IsNetworkEqual( |
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|
391 |
const TWlanAvailableNetwork& aFirst, |
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Revision: 201003
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392 |
const TWlanAvailableNetwork& aSecond ) |
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|
393 |
{ |
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Revision: 201003
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394 |
if ( aFirst.ssid != aSecond.ssid || |
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395 |
aFirst.networkType != aSecond.networkType || |
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396 |
aFirst.securityMode != aSecond.securityMode ) |
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|
397 |
{ |
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Revision: 201003
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|
398 |
return EFalse; |
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|
399 |
} |
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|
400 |
|
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Revision: 201003
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|
401 |
return ETrue; |
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|
402 |
} |
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Revision: 201003
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|
403 |
|
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Revision: 201003
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|
404 |
// ----------------------------------------------------------------------------- |
14
13838cf40350
Revision: 201023
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0
diff
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|
405 |
// CWlanScanResultCache::IsIapEqual |
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Revision: 201023
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|
406 |
// ----------------------------------------------------------------------------- |
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|
407 |
// |
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Revision: 201023
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0
diff
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|
408 |
TBool CWlanScanResultCache::IsIapEqual( |
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Revision: 201023
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|
409 |
const TWlmAvailabilityData& aFirst, |
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Revision: 201023
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0
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|
410 |
const TWlmAvailabilityData& aSecond ) |
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Revision: 201023
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0
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|
411 |
{ |
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Revision: 201023
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|
412 |
if ( aFirst.iapId != aSecond.iapId ) |
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Revision: 201023
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0
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|
413 |
{ |
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Revision: 201023
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|
414 |
return EFalse; |
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Revision: 201023
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0
diff
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|
415 |
} |
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Revision: 201023
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0
diff
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|
416 |
|
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Revision: 201023
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|
417 |
return ETrue; |
13838cf40350
Revision: 201023
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0
diff
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|
418 |
} |
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// ----------------------------------------------------------------------------- |
0
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// CWlanScanResultCache::IsIapListEqual |
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// ----------------------------------------------------------------------------- |
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// |
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TBool CWlanScanResultCache::IsIapListEqual( |
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const RArray<TWlanLimitedIapData>& aFirst, |
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const RArray<TWlanLimitedIapData>& aSecond ) |
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{ |
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/** |
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* If the amount of IAPs is different, it's an obvious fault. |
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*/ |
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if ( aFirst.Count() != aSecond.Count() ) |
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432 |
{ |
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DEBUG2( "CWlanScanResultCache::GetIapDataList() - false, amount of IAPs is different (%u vs %u)", |
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aFirst.Count(), aSecond.Count() ); |
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435 |
|
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return EFalse; |
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} |
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|
438 |
|
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439 |
/** |
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440 |
* Some of the settings might have changed. |
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441 |
*/ |
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442 |
for( TInt i( 0 ); i < aFirst.Count(); ++i ) |
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443 |
{ |
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TBool isFound( EFalse ); |
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for ( TInt j( 0 ); j < aSecond.Count() && !isFound; ++j ) |
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446 |
{ |
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if ( aFirst[i].iapId == aSecond[j].iapId ) |
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|
448 |
{ |
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isFound = ETrue; |
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if ( aFirst[i].ssid != aSecond[j].ssid ) |
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|
451 |
{ |
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|
452 |
DEBUG1( "CWlanScanResultCache::GetIapDataList() - false, IAP %u has mismatching SSID", |
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aFirst[i].iapId ); |
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|
454 |
|
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return EFalse; |
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456 |
} |
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|
457 |
else if ( aFirst[i].networkType != aSecond[j].networkType ) |
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|
458 |
{ |
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|
459 |
DEBUG1( "CWlanScanResultCache::GetIapDataList() - false, IAP %u has mismatching network mode", |
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|
460 |
aFirst[i].iapId ); |
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|
461 |
|
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|
462 |
return EFalse; |
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|
463 |
} |
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|
464 |
else if ( aFirst[i].securityMode != aSecond[j].securityMode || |
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|
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aFirst[i].isPskEnabled != aSecond[j].isPskEnabled ) |
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|
466 |
{ |
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|
467 |
DEBUG1( "CWlanScanResultCache::GetIapDataList() - false, IAP %u has mismatching security mode", |
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|
468 |
aFirst[i].iapId ); |
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|
469 |
|
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470 |
return EFalse; |
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471 |
} |
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else if ( aFirst[i].isHidden != aSecond[j].isHidden ) |
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473 |
{ |
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474 |
DEBUG1( "CWlanScanResultCache::GetIapDataList() - false, IAP %u has mismatching hidden setting", |
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|
475 |
aFirst[i].iapId ); |
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|
476 |
|
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|
477 |
return EFalse; |
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478 |
} |
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479 |
} |
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480 |
} |
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481 |
if ( !isFound ) |
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|
482 |
{ |
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|
483 |
DEBUG1( "CWlanScanResultCache::GetIapDataList() - false, IAP %u not found in previous list", |
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484 |
aFirst[i].iapId ); |
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|
485 |
|
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486 |
return EFalse; |
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487 |
} |
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488 |
} |
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|
489 |
|
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|
490 |
DEBUG( "CWlanScanResultCache::GetIapDataList() - true, IAP lists are equal" ); |
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|
491 |
|
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|
492 |
return ETrue; |
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493 |
} |
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|
494 |
|
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495 |
// ----------------------------------------------------------------------------- |
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496 |
// CWlanScanResultCache::UpdateIapList |
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497 |
// ----------------------------------------------------------------------------- |
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498 |
// |
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|
499 |
void CWlanScanResultCache::UpdateIapList( |
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const RArray<TWlanLimitedIapData>& aIapDataList ) |
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501 |
{ |
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502 |
iIapList.Reset(); |
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|
503 |
TUint32 arraySize( 0 ); |
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|
504 |
|
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|
505 |
for( TInt idx( 0 ); idx < aIapDataList.Count(); ++idx ) |
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|
506 |
{ |
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|
507 |
arraySize += sizeof( aIapDataList[idx] ); |
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|
508 |
iIapList.Append( aIapDataList[idx] ); |
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|
509 |
} |
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|
510 |
|
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|
511 |
DEBUG1( "CWlanScanResultCache::UpdateIapList() - total size of IAP list is %u bytes", |
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|
512 |
arraySize ); |
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|
513 |
} |
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|
514 |
|
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515 |
// ----------------------------------------------------------------------------- |
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|
516 |
// CWlanScanResultCache::CachedIapDataList |
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// ----------------------------------------------------------------------------- |
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518 |
// |
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|
519 |
const RArray<TWlanLimitedIapData>& CWlanScanResultCache::CachedIapDataList() const |
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520 |
{ |
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521 |
return iIapList; |
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522 |
} |
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|
523 |
|
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// ----------------------------------------------------------------------------- |
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// CWlanScanResultCache::InvalidateAvailabilityCache |
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// ----------------------------------------------------------------------------- |
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// |
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void CWlanScanResultCache::InvalidateAvailabilityCache() |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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{ |
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iIapListTimeStamp = 0; |
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} |