--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/convergedconnectionhandler/cchserver/src/cchcommdbwatcher.cpp Wed Sep 01 12:29:57 2010 +0100
@@ -0,0 +1,607 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: CCCHCommDbWatcher implementation
+*
+*/
+
+
+// INCLUDE FILES
+#include <cmdestination.h>
+#include <cmconnectionmethoddef.h>
+#include <cmpluginwlandef.h>
+#include <cmpluginvpndef.h>
+#include <centralrepository.h>
+#include <commsdat.h>
+
+#include "cchcommdbwatcher.h"
+#include "cchcommdbwatcherobserver.h"
+#include "cchlogger.h"
+#include "d32dbms.h"
+
+// EXTERNAL DATA STRUCTURES
+// None
+
+// EXTERNAL FUNCTION PROTOTYPES
+// None
+
+// CONSTANTS
+// None
+
+// MACROS
+// None
+
+// LOCAL CONSTANTS AND MACROS
+const TInt KDefaultGranularity = 5;
+const TInt KMaxCheckAttempts = 3;
+// Repository for CommsDat
+const TUid KCDCommsRepositoryId = { 0xCCCCCC00 };
+
+// MODULE DATA STRUCTURES
+// None
+
+// LOCAL FUNCTION PROTOTYPES
+// None
+
+// FORWARD DECLARATIONS
+// None
+
+// ============================= LOCAL FUNCTIONS =============================
+
+// ============================ MEMBER FUNCTIONS =============================
+
+// ---------------------------------------------------------------------------
+// CCCHCommDbWatcher::CCCHCommDbWatcher
+// C++ default constructor can NOT contain any code, that might leave.
+// ---------------------------------------------------------------------------
+//
+CCCHCommDbWatcher::CCCHCommDbWatcher( MCCHCommDbWatcherObserver& aObserver ) :
+ CActive( CActive::EPriorityStandard ),
+ iObserver( aObserver ),
+ iTableId( KCDTIdIAPRecord )
+ {
+ CActiveScheduler::Add( this );
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::ConstructL
+// Symbian 2nd phase constructor can leave.
+// ---------------------------------------------------------------------------
+//
+void CCCHCommDbWatcher::ConstructL()
+ {
+ CCHLOGSTRING( "CCCHCommDbWatcher::ConstructL IN" );
+
+ iRepository = CRepository::NewL( KCDCommsRepositoryId );
+ iDestinations = RArray<TDestinationData>( KDefaultGranularity );
+
+ InitializeDestination();
+ TInt err( RequestNotifications() );
+ User::LeaveIfError( err );
+ CCHLOGSTRING( "CCCHCommDbWatcher::ConstructL OUT" );
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::NewL
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CCCHCommDbWatcher* CCCHCommDbWatcher::NewL(
+ MCCHCommDbWatcherObserver& aObserver )
+ {
+ CCCHCommDbWatcher* self = CCCHCommDbWatcher::NewLC( aObserver );
+ CleanupStack::Pop( self );
+ return self;
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::NewLC
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CCCHCommDbWatcher* CCCHCommDbWatcher::NewLC(
+ MCCHCommDbWatcherObserver& aObserver )
+ {
+ CCCHCommDbWatcher* self = new (ELeave) CCCHCommDbWatcher( aObserver );
+ CleanupStack::PushL( self );
+ self->ConstructL();
+ return self;
+ }
+
+// Destructor
+CCCHCommDbWatcher::~CCCHCommDbWatcher()
+ {
+ CCHLOGSTRING( "CCCHCommDbWatcher::~CCCHCommDbWatcher" );
+ iDestinations.Close();
+ // Cancel outstanding request, if exists
+ Cancel();
+ delete iRepository;
+ if ( iCmmOpen )
+ {
+ iCmm.Close();
+ }
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::RequestNotifications()
+//
+// ---------------------------------------------------------------------------
+//
+TInt CCCHCommDbWatcher::RequestNotifications()
+ {
+ CCHLOGSTRING( "CCCHCommDbWatcher::RequestNotifications()" );
+ CCHLOGSTRING2( "Calling iRepository->NotifyRequest() for table 0x%08X", iTableId );
+ TInt err = iRepository->NotifyRequest( iTableId, KCDMaskShowRecordType, iStatus );
+
+ if ( KErrNone == err )
+ {
+ SetActive();
+ }
+ else
+ {
+ CCHLOGSTRING2( "ERROR, iRepository->NotifyRequest() <%d>", err );
+ }
+ return err;
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::CmManagerL
+//
+// ---------------------------------------------------------------------------
+//
+RCmManager& CCCHCommDbWatcher::CmManagerL()
+ {
+ // Remove this method and open cmmanager connection in ConstructL
+ // after cmmanager is refactored -> to become a server, schedule is unknown
+ if ( !iCmmOpen )
+ {
+ CCHLOGSTRING( "CCCHCommDbWatcher::CmManagerL open connection" );
+ iCmm.OpenL();
+ iCmmOpen = ETrue;
+ }
+
+ return iCmm;
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::GetWLANIapCountFromSnap
+//
+// ---------------------------------------------------------------------------
+//
+TInt CCCHCommDbWatcher::GetIapCountFromSnap(
+ TInt aSNAPId,
+ TBool aWLANIapsOnly,
+ TBool aUpdateDestinations )
+ {
+ CCHLOGSTRING( "CCCHCommDbWatcher::GetIapCountFromSnap - Forced CheckIapsL" );
+
+ // Remove this error check after cmmanager is refactored -> to become
+ // a server, schedule is unknown
+ // Force destination update if we are pending unlock event
+ if ( iLastError || iUseForce || aUpdateDestinations )
+ {
+ CCHLOGSTRING( "CCCHCommDbWatcher::GetIapCountFromSnap - Forced DESTINATION UPDATE" );
+ InitializeDestination();
+ iUseForce = EFalse;
+ }
+
+ TInt iaps( KErrNotFound );
+ for ( TInt i = 0; iaps == KErrNotFound && i < iDestinations.Count(); i++ )
+ {
+ if ( iDestinations[ i ].iDestId == aSNAPId )
+ {
+ iaps = 0; //if destination is not found, KErrNotFound is returned
+ if ( aWLANIapsOnly )
+ {
+ iaps = iDestinations[ i ].iWlanIaps;
+ }
+ else
+ {
+ iaps = iDestinations[ i ].iIapCount;
+ }
+ }
+ }
+
+ return iaps;
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::IsVpnApL
+//
+// ---------------------------------------------------------------------------
+//
+TBool CCCHCommDbWatcher::IsVpnApL(
+ TInt aIapId )
+ {
+ CCHLOGSTRING( "CCCHCommDbWatcher::IsVpnApL: IN" );
+ TBool response( KPluginVPNBearerTypeUid == GetBearerL( aIapId ) );
+ CCHLOGSTRING3( "CCCHCommDbWatcher::IsVpnApL: iap id: %d is vpn ap: %d",
+ aIapId, response );
+ return response;
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::IsWLANAPL
+//
+// ---------------------------------------------------------------------------
+//
+TBool CCCHCommDbWatcher::IsWlanApL(
+ TInt aIapId )
+ {
+ CCHLOGSTRING( "CCCHCommDbWatcher::IsWLANAPL: IN" );
+ TBool response( KUidWlanBearerType == GetBearerL( aIapId ) );
+
+ CCHLOGSTRING3( "CCCHCommDbWatcher::IsWLANAPL: iap id: %d is wlan ap: %d",
+ aIapId, response );
+ return response;
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::GetBearerL
+//
+// ---------------------------------------------------------------------------
+//
+TUint32 CCCHCommDbWatcher::GetBearerL(
+ TInt aIapId )
+ {
+ return CmManagerL().ConnectionMethodL( aIapId ).GetIntAttributeL(
+ CMManager::ECmBearerType );
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::RunL
+//
+// ---------------------------------------------------------------------------
+//
+void CCCHCommDbWatcher::RunL()
+ {
+ if ( iStatus.Int() < KErrNone )
+ {
+ CCHLOGSTRING2( "CCCHCommDbWatcher::RunL: error <%d>", iStatus.Int() );
+ iErrorCounter++;
+ if ( iErrorCounter > KCchConnCenRepErrorThreshold )
+ {
+ CCHLOGSTRING2( "Over %d consecutive errors, stopping notifications permanently",
+ KCchConnCenRepErrorThreshold );
+ return;
+ }
+ }
+ else
+ {
+ iErrorCounter = 0;
+ UpdateIapTable();
+ }
+
+ CCHLOGSTRING2( "CCCHCommDbWatcher::RunL: CenRep event 0x%08X", iStatus.Int() );
+
+ TInt err( RequestNotifications() );
+ User::LeaveIfError( err );
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::DoCancel
+//
+// ---------------------------------------------------------------------------
+//
+void CCCHCommDbWatcher::DoCancel()
+ {
+ iRepository->NotifyCancel( iTableId, KCDMaskShowRecordType );
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::RunError
+//
+// ---------------------------------------------------------------------------
+//
+
+TInt CCCHCommDbWatcher::RunError( TInt /*aError*/ )
+ {
+ TInt err( RequestNotifications() );
+ return KErrNone;
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::CheckIapsL
+//
+// ---------------------------------------------------------------------------
+//
+void CCCHCommDbWatcher::CheckIapsL( TBool& aChanged, TInt& aSNAPId )
+ {
+ CCHLOGSTRING2( "CCCHCommDbWatcher::CheckIapsL: IN Current iap count %d",
+ CountIapsFromArray( iDestinations ) );
+
+
+ RArray<TUint32> destIdArray = RArray<TUint32>( KDefaultGranularity );
+ CleanupClosePushL( destIdArray ); // CS:1
+ RArray<TDestinationData> currentDestinations = RArray<TDestinationData>(
+ KDefaultGranularity );
+ CleanupClosePushL( currentDestinations ); // CS:2
+
+ //Get count of iaps that do not belong to any destination
+ RArray<TUint32> cmMethods = RArray<TUint32>( KDefaultGranularity );
+ CleanupClosePushL( cmMethods ); // CS:3
+ CmManagerL().ConnectionMethodL( cmMethods );
+
+ TDestinationData destinationlessIaps( KErrNotFound, cmMethods.Count() );
+ CCHLOGSTRING2( "CCCHCommDbWatcher::CheckIapsL: cmMethods count %d",
+ cmMethods.Count() );
+ for ( TInt i = 0; i < cmMethods.Count(); i++ )
+ {
+ RCmConnectionMethod cm = CmManagerL().ConnectionMethodL( cmMethods[ i ] );
+ CleanupClosePushL( cm ); // CS:4
+
+ if( KUidWlanBearerType ==
+ cm.GetIntAttributeL( CMManager::ECmBearerType ) )
+ {
+ destinationlessIaps.iWlanIaps++;
+ }
+ CleanupStack::PopAndDestroy( &cm ); // CS:3
+ }
+
+ CleanupStack::PopAndDestroy( &cmMethods ); // CS:2
+ currentDestinations.Append( destinationlessIaps );
+
+ //Get count of iaps per destination
+ CmManagerL().AllDestinationsL( destIdArray );
+ CCHLOGSTRING2( "CCCHCommDbWatcher::CheckIapsL: destination count %d",
+ destIdArray.Count() )
+ for ( TInt i = 0; i < destIdArray.Count(); i++ )
+ {
+ RCmDestination destination = CmManagerL().DestinationL( destIdArray[ i ] );
+ CleanupClosePushL( destination ); // CS:3
+ TDestinationData destinationInfo(
+ destination.Id(), destination.ConnectionMethodCount() );
+
+ for ( TInt k = 0; k < destinationInfo.iIapCount; k++ )
+ {
+ RCmConnectionMethod cm = destination.ConnectionMethodL( k );
+ CleanupClosePushL( cm ); // CS:4
+
+ if( KUidWlanBearerType ==
+ cm.GetIntAttributeL( CMManager::ECmBearerType ) )
+ {
+ destinationInfo.iWlanIaps++;
+ }
+ CleanupStack::PopAndDestroy( &cm ); // CS:3
+ }
+
+ currentDestinations.Append( destinationInfo );
+ CleanupStack::PopAndDestroy( &destination ); // CS:2
+ }
+
+ destIdArray.Close();
+
+ UpdateDestinationStore( currentDestinations, aChanged, aSNAPId );
+
+ CleanupStack::PopAndDestroy( ¤tDestinations ); // CS:1
+ CleanupStack::PopAndDestroy( &destIdArray ); // CS:0
+
+ CCHLOGSTRING2( "CCCHCommDbWatcher::CheckIapsL: OUT changed: %d", aChanged );
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::CountIapsFromArray
+//
+// ---------------------------------------------------------------------------
+//
+TInt CCCHCommDbWatcher::CountIapsFromArray(
+ RArray<TDestinationData>& aArray ) const
+ {
+ TInt iaps = 0;
+ for ( TInt i=0; i<aArray.Count(); i++ )
+ {
+ iaps+= aArray[i].iIapCount;
+ }
+ return iaps;
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::UpdateDestinationStore
+//
+// ---------------------------------------------------------------------------
+//
+void CCCHCommDbWatcher::UpdateDestinationStore(
+ RArray<TDestinationData>& aDestinations,
+ TBool& aChanged,
+ TInt& aSNAPId )
+ {
+ //Now compare fetched data with store
+ TInt iapsBefore = CountIapsFromArray ( iDestinations );
+ TInt iapsAfter = CountIapsFromArray ( aDestinations );
+
+ aSNAPId = KErrNotFound;
+ aChanged = EFalse;
+
+ //no further checking is needed if iap count decreased
+ if ( iapsAfter >= iapsBefore )
+ {
+ //compare store with current setup for changes
+ //only change in WLAN iap count is reported
+ for ( TInt i = 0; !aChanged && i < aDestinations.Count(); i++ )
+ {
+ TBool alreadyexists = EFalse;
+ for ( TInt j = 0; !aChanged && j < iDestinations.Count(); j++ )
+ {
+ if ( aDestinations[i].iDestId == iDestinations[j].iDestId )
+ {
+ alreadyexists = ETrue;
+ // Do not update snap id if destination is -1, this means
+ // that cmmanager hasn't moved iap to the right destination yet
+ if ( aDestinations[i].iWlanIaps >
+ iDestinations[j].iWlanIaps )
+ {
+ if ( KErrNotFound == aDestinations[ i ].iDestId )
+ {
+ // If destination -1 is the only updated destination
+ // we have to use force next time when asking GetIapCountFromSnap
+ iUseForce = ETrue;
+ CCHLOGSTRING( "CCCHCommDbWatcher - USE THE FORCE NEXT TIME" );
+ }
+ else
+ {
+ //wlan iap count increased in comp[i]
+ aSNAPId = aDestinations[i].iDestId;
+ aChanged = ETrue;
+ iUseForce = EFalse;
+ CCHLOGSTRING2( "CCCHCommDbWatcher - snap id: %d", aSNAPId );
+ }
+ }
+ }
+ }
+
+ //if there is a new SNAP, check wlan iap count in the new IAP
+ if ( !alreadyexists && aDestinations[i].iWlanIaps > 0 )
+ {
+ aSNAPId = aDestinations[i].iDestId;
+ aChanged = ETrue;
+ CCHLOGSTRING2( "CCCHCommDbWatcher new snap id: %d", aSNAPId );
+ }
+ }
+ }
+
+ //update store
+ iDestinations.Reset();
+ for ( TInt i=0; i < aDestinations.Count(); i++ )
+ {
+ iDestinations.Append( aDestinations[i] );
+ // Destinations are refreshed, set last error to kerrnone
+ iLastError = KErrNone;
+ }
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::UpdateIapTable
+//
+// ---------------------------------------------------------------------------
+//
+TInt CCCHCommDbWatcher::UpdateIapTable()
+ {
+ TBool configurationChanged( EFalse );
+ TInt changedSnapId( KErrNotFound );
+ TInt error( KErrNone );
+ TRAP( error, CheckIapsL( configurationChanged, changedSnapId ) );
+
+ if ( error == KErrNone )
+ {
+ if( configurationChanged )
+ {
+ // new IAP(s) added, notify observer
+ iObserver.HandleWLANIapAdded( changedSnapId );
+ }
+ }
+
+ CCHLOGSTRING2( "CCCHCommDbWatcher::UpdateIapTable: CActive iStatus : %d", iStatus.Int() );
+ return error;
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::InitializeDestination
+//
+// ---------------------------------------------------------------------------
+//
+void CCCHCommDbWatcher::InitializeDestination()
+ {
+ //call CheckWLANIapsL to get initial iap/snap list to array
+ //we're not interested in the return value at this point
+ TBool configurationChanged( EFalse );
+ TInt changedSnapId( 0 );
+ // Loop, because transaction might pend and error(KErrLocked) may occur
+ TInt error( KErrNone );
+ for ( TInt i( 0 ); i < KMaxCheckAttempts; i++ )
+ {
+ TRAP( error, CheckIapsL( configurationChanged, changedSnapId ) );
+ CCHLOGSTRING2(
+ "CCCHCommDbWatcher::InitializeDestination; error: %d", error );
+ if( KErrNone == error || KErrNotFound == error )
+ {
+ break;
+ }
+ }
+
+ if( error )
+ {
+ iLastError = error;
+ }
+ }
+
+// ---------------------------------------------------------------------------
+// CCCHCommsDbWatcher::RemoveOtherThanVpnIapsL
+//
+// ---------------------------------------------------------------------------
+//
+void CCCHCommDbWatcher::RemoveOtherThanVpnIapsL(
+ RArray<TUint>& aIapIds,
+ TUint aIAPId )
+ {
+ CCHLOGSTRING2( "CCCHCommDbWatcher::RemoveOtherThanVpnIapsL; IAP ID: %d", aIAPId );
+ CCHLOGSTRING2( "CCCHCommDbWatcher::RemoveOtherThanVpnIapsL; IAPs count before: %d", aIapIds.Count() );
+
+ TUint32 iapId( KErrNone );
+ RArray<TUint> iaps;
+ CleanupClosePushL( iaps );
+ RCmConnectionMethod cm = CmManagerL().ConnectionMethodL( aIAPId );
+ CleanupClosePushL( cm );
+
+ TUint32 realIap( cm.GetIntAttributeL( CMManager::ECmNextLayerIapId ) );
+ CCHLOGSTRING2( "CCCHCommDbWatcher::RemoveOtherThanVpnIapsL: real iap %d ", realIap );
+ TUint32 realSnap( cm.GetIntAttributeL( CMManager::ECmNextLayerSNAPId ) );
+ CCHLOGSTRING2( "CCCHCommDbWatcher::RemoveOtherThanVpnIapsL: real snap %d", realSnap );
+
+ if ( realIap )
+ {
+ CCHLOGSTRING( "CCCHCommDbWatcher::RemoveOtherThanVpnIapsL: VPN linked to IAP" );
+
+ if ( KErrNotFound != aIapIds.Find( realIap ) )
+ {
+ iaps.Append( realIap );
+ }
+ }
+ else
+ {
+ CCHLOGSTRING( "CCCHCommDbWatcher::RemoveOtherThanVpnIapsL: VPN linked to SNAP" );
+
+ RCmDestination realDestination = CmManagerL().DestinationL( realSnap );
+ CleanupClosePushL( realDestination );
+
+ for ( TInt i = 0; i < realDestination.ConnectionMethodCount(); i++ )
+ {
+ RCmConnectionMethod realCm = realDestination.ConnectionMethodL( i );
+ CleanupClosePushL( realCm );
+ iapId = realCm.GetIntAttributeL( CMManager::ECmIapId );
+
+ if ( KErrNotFound != aIapIds.Find( iapId ) )
+ {
+ iaps.Append( iapId );
+ }
+
+ CleanupStack::PopAndDestroy( &realCm );
+ }
+
+ CleanupStack::PopAndDestroy( &realDestination );
+ }
+
+ aIapIds.Reset();
+ for ( TInt j( 0 ); j < iaps.Count(); j++ )
+ {
+ aIapIds.Append( iaps[ j ] );
+ }
+
+ CleanupStack::PopAndDestroy( &cm );
+ CleanupStack::PopAndDestroy( &iaps );
+
+ CCHLOGSTRING2( "CCCHCommDbWatcher::RemoveOtherThanVpnIapsL; IAPs count after: %d", aIapIds.Count() );
+ }
+
+// ========================== OTHER EXPORTED FUNCTIONS =======================
+
+// End of File