sl@0: // Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: // INCLUDE FILES
sl@0: #include <ecom/ecom.h>
sl@0: #include <e32uid.h>
sl@0: #include "featmgrconfiguration.h"
sl@0: #include "featmgrserver.h"
sl@0: #include "featmgrsession.h"
sl@0: #include "featmgrpluginhandler.h"
sl@0: #include "featmgrdebug.h"
sl@0: #include "featmgrsecuritypolicy.h"
sl@0: #include <f32file.h>
sl@0: #include <s32file.h>
sl@0: 
sl@0: _LIT(KPanicCategory, "FeatMgrServer");
sl@0: 
sl@0: // ============================ MEMBER FUNCTIONS ===============================
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatMgrServer::CFeatMgrServer
sl@0: // C++ default constructor can NOT contain any code, that
sl@0: // might leave.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: CFeatMgrServer::CFeatMgrServer( const TInt aPriority, const TServerType aType  )
sl@0:     :
sl@0:     CPolicyServer( aPriority, KFeatMgrPlatSecPolicy, aType ), iBurState(this),
sl@0:     iBURInProgress(EFalse),
sl@0:     iPluginsReady(EFalse), 
sl@0:     iPluginsDeleted( EFalse ),
sl@0:     iPendingRequests( ETrue ),
sl@0:     iFeaturesReady(EFalse)
sl@0:     
sl@0:     {
sl@0:     // Nothing to do
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatMgrServer::ConstructL
sl@0: // Symbian 2nd phase constructor can leave.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: void CFeatMgrServer::ConstructL()
sl@0:     {
sl@0:     FUNC_LOG
sl@0:     
sl@0: #ifndef EXTENDED_FEATURE_MANAGER_TEST
sl@0:     // Set server process system critical
sl@0:     User::SetProcessCritical(User::ESystemCritical);
sl@0: #else
sl@0:     iShutdown.ConstructL();
sl@0:     // ensure the server still exits even if the 1st client fails to connect
sl@0:     if( !iShutdown.IsActive() )
sl@0:         {
sl@0:         iShutdown.Start();
sl@0:         }
sl@0: #endif
sl@0:     
sl@0:     // Add server to active scheduler
sl@0:     StartL( KServerProcessName );
sl@0:     
sl@0:     // Connect to file server.
sl@0:     User::LeaveIfError( iFs.Connect() );
sl@0:     
sl@0:     // register BUR
sl@0:     iBackupNotification = CBaBackupSessionWrapper::NewL();
sl@0:     
sl@0:     // register the file 
sl@0: 	TFileName temp( iRegistry->GetFeaturesFilePathAndName() );
sl@0:     iBackupNotification->RegisterFileL( temp, *this );
sl@0: 	
sl@0:     // feature registry
sl@0:     iRegistry = CFeatMgrFeatureRegistry::NewL( iFs, *this );
sl@0:     
sl@0:     TRAPD(err,iRegistry->ReadFeatureFilesL());
sl@0:     switch (err)
sl@0:     	{
sl@0:     	case KErrNotFound:
sl@0:     		ERROR_LOG( "CFeatMgrServer::ConstructL() - no feature files found in ROM - going to panic");
sl@0:     		::FmgrFatalErrorL(err, KPanicCategory, EPanicNoFeatureFiles);
sl@0:     		break;
sl@0:     	case KErrCorrupt:
sl@0:     	    ERROR_LOG( "CFeatMgrServer::ConstructL() - feature information in ROM is invalid - going to panic");
sl@0:     	    ::FmgrFatalErrorL(err, KPanicCategory, EPanicInvalidFeatureInfo);
sl@0:     	    break;
sl@0:     	default:
sl@0:     		User::LeaveIfError(err);
sl@0:     		break;
sl@0:     	}
sl@0: 	
sl@0:     // List and load plugins and feature info.
sl@0:     TBool found = LoadPluginsL();
sl@0:     
sl@0:     if( found )
sl@0:         {
sl@0:         // Timer for deleting plugins and for comparing feature lists.
sl@0:         iTimer = CFeatMgrTimer::NewL( *this );
sl@0:        }
sl@0:     else
sl@0:         {
sl@0:         iRegistry->ReadRuntimeFeaturesL( iFeaturesReady );
sl@0:         }
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatMgrServer::NewLC
sl@0: // Two-phased constructor.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: CFeatMgrServer* CFeatMgrServer::NewLC(const TInt aPriority)
sl@0:     {
sl@0:     FUNC_LOG
sl@0: 
sl@0:     CFeatMgrServer* self = new( ELeave ) CFeatMgrServer(aPriority, EUnsharableSessions);
sl@0:     
sl@0:     CleanupStack::PushL( self );
sl@0:     self->ConstructL();
sl@0: 
sl@0:     return self;
sl@0:     }
sl@0: 
sl@0: #ifdef EXTENDED_FEATURE_MANAGER_TEST
sl@0: // -----------------------------------------------------------------------------
sl@0: // A new session is being created
sl@0: // Cancel the shutdown timer if it was running
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: void CFeatMgrServer::AddSession()
sl@0:     {
sl@0:     FUNC_LOG
sl@0:     
sl@0:     ++iSessionCount;
sl@0:     iShutdown.Cancel();
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // A session is being destroyed
sl@0: // Start the shutdown timer if it is the last session.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: void CFeatMgrServer::DropSession()
sl@0:     {
sl@0:     FUNC_LOG
sl@0:     
sl@0:     if (--iSessionCount==0)
sl@0:         {
sl@0:         if( !iShutdown.IsActive() )
sl@0:             {
sl@0:             iShutdown.Start();
sl@0:             }
sl@0:         }
sl@0:     }
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // CShutDown
sl@0: // ---------------------------------------------------------------------------
sl@0: inline CShutdown::CShutdown()
sl@0:     :CTimer(-1)
sl@0:     {
sl@0:     CActiveScheduler::Add(this);
sl@0:     }
sl@0:     
sl@0: inline void CShutdown::ConstructL()
sl@0:     {
sl@0:     CTimer::ConstructL();
sl@0:     }
sl@0: 
sl@0: inline void CShutdown::Start()
sl@0:     {
sl@0:     FUNC_LOG
sl@0:     After(KShutdownTimeout);
sl@0:     }
sl@0: 
sl@0: void CShutdown::RunL()
sl@0:     {
sl@0:     FUNC_LOG
sl@0:     CActiveScheduler::Stop();
sl@0:     }
sl@0: 
sl@0: #endif // EXTENDED_FEATURE_MANAGER_TEST
sl@0:     
sl@0: // -----------------------------------------------------------------------------
sl@0: // Destructor
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: CFeatMgrServer::~CFeatMgrServer()
sl@0:     {
sl@0:     FUNC_LOG
sl@0: 
sl@0:     // Close all open sessions
sl@0: 	CFeatMgrSession* session=NULL;
sl@0: 	iSessionIter.SetToFirst();
sl@0: 	
sl@0: 	while( (session = static_cast<CFeatMgrSession*>(iSessionIter++)) != NULL )
sl@0: 	    {
sl@0: 		delete session;
sl@0: 	    }
sl@0: 
sl@0:     // Delete plugin handlers    
sl@0:     if ( !iPluginsDeleted )
sl@0:         {
sl@0:         iPendingRequests = EFalse; // No need to serve pending requests
sl@0:         iFeaturesReady = ETrue; // No need to read files anymore
sl@0:         DeletePlugins();
sl@0:         } 
sl@0:     
sl@0:     delete iTimer;
sl@0:     iPluginList.Close();
sl@0:     
sl@0:     // De register Backup and Restore and cleanup memory
sl@0:     if( iBackupNotification ) 
sl@0:     	{
sl@0: 		TFileName temp( iRegistry->GetFeaturesFilePathAndName() );
sl@0:     	iBackupNotification->DeregisterFile( temp );
sl@0:     	delete iBackupNotification;
sl@0:     	iBackupNotification = NULL;
sl@0:     	}
sl@0:     
sl@0:     delete iRegistry;
sl@0:     iFs.Close();
sl@0:     }
sl@0: 
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatMgrServer::NewSessionL
sl@0: // Creates a new CSession2
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: CSession2* CFeatMgrServer::NewSessionL( const TVersion& aVersion,
sl@0:                                      const RMessage2& /*aMessage*/ ) const
sl@0:     {
sl@0:     FUNC_LOG
sl@0:     
sl@0:     if ( !User::QueryVersionSupported( TVersion( KServerVersionMajor, 
sl@0:                                                  KServerVersionMinor, 
sl@0:                                                  KServerVersionBuild ), 
sl@0:                                                  aVersion ) )
sl@0:         {
sl@0:         User::Leave( KErrNotSupported );
sl@0:         }
sl@0:     
sl@0:     CSession2* session = CFeatMgrSession::NewL(*const_cast<CFeatMgrServer*>(this), *iRegistry );
sl@0: 
sl@0:     return( session );
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatMgrServer::TimerFired
sl@0: // Handles timer firing. 
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: void CFeatMgrServer::TimerFired()
sl@0:     {
sl@0:     FUNC_LOG
sl@0: 
sl@0:     // Delete plugin handlers. Plugin handler deletes the plugin.    
sl@0:     if ( !iPluginsDeleted )
sl@0:         {
sl@0:         DeletePlugins();
sl@0:         } 
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatMgrServer::HandleFeatureChange()
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: void CFeatMgrServer::HandleFeatureChange( TFeatureServerEntry& aFeature, TFeatureChangeType aType )
sl@0:     {
sl@0:     FUNC_LOG
sl@0: 
sl@0:     CFeatMgrSession* session=NULL;
sl@0: 	TDblQueIter<CSession2> local_iSessionIter = iSessionIter;
sl@0: 	local_iSessionIter.SetToFirst();
sl@0: 	    
sl@0: 	while( (session = static_cast<CFeatMgrSession*>(local_iSessionIter++)) != NULL )
sl@0: 	    {
sl@0: 		session->ServiceNotifications( aFeature, aType );
sl@0: 	    }
sl@0:     }
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // CFeatMgrServer::ResetAndDestroyArray
sl@0: // ---------------------------------------------------------------------------
sl@0: // 
sl@0: static void ResetAndDestroyArray( TAny* aPtr )
sl@0:     {
sl@0:     RImplInfoPtrArray* array = static_cast< RImplInfoPtrArray* >( aPtr );
sl@0:     array->ResetAndDestroy();
sl@0:     array->Close();
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatMgrServer::LoadPluginsL()
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: TBool CFeatMgrServer::LoadPluginsL()
sl@0:     {
sl@0:     FUNC_LOG
sl@0:     
sl@0:     RImplInfoPtrArray implInfoArray;
sl@0:     TBool ret( EFalse );
sl@0: 
sl@0:     // Use ECom to read information about existing interface implementations
sl@0: #ifndef EXTENDED_FEATURE_MANAGER_TEST
sl@0:     _LIT8( KResolverString, "" );
sl@0: #else
sl@0:     _LIT8( KResolverString, "efmtestplugin" ); //In test server we only want test plugins.
sl@0: #endif
sl@0:     TEComResolverParams resolverParams;
sl@0:     resolverParams.SetDataType (KResolverString);
sl@0:     resolverParams.SetWildcardMatch (ETrue);
sl@0: 
sl@0:     TCleanupItem cleanupItem( ResetAndDestroyArray, &implInfoArray );
sl@0:     CleanupStack::PushL( cleanupItem );
sl@0:     
sl@0:     TIMESTAMP( "CFeatMgrServer::LoadPluginsL - ListImplementationsL start: " )
sl@0:     REComSession::ListImplementationsL( KFeatureInfoPluginInterfaceUid,
sl@0:                                         resolverParams,
sl@0: #ifndef EXTENDED_FEATURE_MANAGER_TEST                                         
sl@0:                                         KRomOnlyResolverUid, 
sl@0: #endif                                        
sl@0:                                         implInfoArray);
sl@0:     TIMESTAMP( "CFeatMgrServer::LoadPluginsL - ListImplementationsL end: " )
sl@0:     
sl@0:     // Check if any plugin was found. 
sl@0:     TInt count = implInfoArray.Count();
sl@0:     if(count == 0)
sl@0:         {
sl@0:         iPluginsReady = ETrue; // Plugins not found.
sl@0:         INFO_LOG1("CFeatMgrServer::LoadPluginsL - interfaceUid.iUid == 0x%x, return plugins not found", KFeatureInfoPluginInterfaceUid);
sl@0:         ret = EFalse;
sl@0:         }
sl@0:     else
sl@0:         {
sl@0:         for(TInt i=0;i<count;++i)
sl@0:             {
sl@0:             CFeatMgrPluginHandler* pluginHandler = NULL;
sl@0:             TRAPD(err, pluginHandler = CFeatMgrPluginHandler::NewL(implInfoArray[i]->ImplementationUid(), *this));
sl@0:             if(err == KErrNone)
sl@0:                 {
sl@0:                 CleanupStack::PushL(pluginHandler);
sl@0:                 TRAP(err, pluginHandler->SendCommandL(FeatureInfoCommand::ELoadFeatureInfoCmdId));
sl@0:                 if(err == KErrNotSupported)
sl@0:                     {
sl@0:                     TRAP(err, pluginHandler->SendCommandL(FeatureInfoCommand::ELoadEnhancedFeatureInfoCmdId));
sl@0:                     }
sl@0:                 }
sl@0:             if(err == KErrNoMemory)
sl@0:                 {
sl@0:                 User::Leave(err);
sl@0:                 }
sl@0:             else if(err != KErrNone)
sl@0:                 {
sl@0:                 ERROR_LOG2("CFeatMgrServer::LoadPluginsL() - implementationUid: 0x%x, error: %d - going to panic", implInfoArray[i]->ImplementationUid(), err);
sl@0:                 ::FmgrFatalErrorL(err, KPanicCategory, EPanicLoadPluginError);                           
sl@0:                 }
sl@0:             // Add information of the plugin to the plugin list. Set all plugins as not ready initially.
sl@0:             SFeatMgrPluginInfo plugin;
sl@0:             plugin.iPluginHandler = pluginHandler;
sl@0:             plugin.iPluginReady = EFalse;
sl@0:             User::LeaveIfError(iPluginList.Append(plugin));
sl@0:             CleanupStack::Pop(pluginHandler);
sl@0:             }
sl@0:         INFO_LOG1("CFeatMgrServer::LoadPluginsL - interfaceUid.iUid == 0x%x, return plugins found", KFeatureInfoPluginInterfaceUid);
sl@0:         ret = ETrue;
sl@0:         }
sl@0:     
sl@0:     CleanupStack::PopAndDestroy(&implInfoArray);
sl@0:     
sl@0:     return ret;
sl@0:     }
sl@0:     
sl@0:     
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatMgrServer::PluginsReady()
sl@0: // -----------------------------------------------------------------------------
sl@0: 
sl@0: TBool CFeatMgrServer::PluginsReady() const
sl@0:     {
sl@0:     FUNC_LOG
sl@0:     return(iPluginsReady);
sl@0:    	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatMgrServer::BackupIsInProgress()
sl@0: // -----------------------------------------------------------------------------
sl@0: TBool CFeatMgrServer::BURIsInProgress() const
sl@0:     {
sl@0:     FUNC_LOG
sl@0:     return(iBURInProgress);
sl@0:     }
sl@0:    	
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatMgrServer::ServicePendingRequests()
sl@0: // -----------------------------------------------------------------------------
sl@0: 
sl@0: void CFeatMgrServer::ServicePendingRequests()
sl@0:     {
sl@0:     FUNC_LOG
sl@0:     
sl@0:     CFeatMgrSession* session=NULL;
sl@0: 	iSessionIter.SetToFirst();
sl@0: 	    
sl@0: 	while( (session = static_cast<CFeatMgrSession*>(iSessionIter++)) != NULL )
sl@0: 	    {
sl@0: 		TRAPD( err, session->ServicePendingRequestsL() );
sl@0:         LOG_IF_ERROR1( err, "CFeatMgrServer::ServicePendingRequests - err %d", err );
sl@0: 	    }
sl@0:    	
sl@0:    	iPendingRequests = EFalse;
sl@0:    	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatMgrServer::DeletePlugins()
sl@0: // -----------------------------------------------------------------------------
sl@0: 
sl@0: void CFeatMgrServer::DeletePlugins()
sl@0:     {
sl@0:     FUNC_LOG
sl@0:     
sl@0:     // Set iPluginsReady to ETrue because plugins will be deleted.
sl@0:     iPluginsReady = ETrue;
sl@0:     TInt err( KErrNone );
sl@0: 
sl@0:     // Load runtimefeatures.txt if not loaded yet.
sl@0:     if ( !iFeaturesReady )
sl@0:         { 
sl@0:         TRAP( err, iRegistry->ReadRuntimeFeaturesL( iFeaturesReady ) );
sl@0:         
sl@0:         LOG_IF_ERROR1( err, "CFeatMgrServer::DeletePlugins() - ReadRuntimeFeaturesL err %d", err ); 
sl@0:         }
sl@0:     
sl@0:     // Service pending requests before deleting plugins if not serviced yet.
sl@0:     if ( iPendingRequests )
sl@0:         {
sl@0:         ServicePendingRequests();
sl@0:         }
sl@0:           
sl@0:     // Delete plugin handlers
sl@0:     TInt count = iPluginList.Count();
sl@0: 
sl@0:     for ( TInt i = 0 ; i < count; i++ )
sl@0:         {
sl@0:         delete iPluginList[i].iPluginHandler;
sl@0:         iPluginList[i].iPluginHandler = NULL;
sl@0:         }
sl@0: 
sl@0:     // Reset list of plugins
sl@0:     iPluginList.Reset();
sl@0:         
sl@0:     // Signal final closure of ecom session
sl@0: 	REComSession::FinalClose();
sl@0: 	    
sl@0: 	// All plugin handlers deleted
sl@0: 	iPluginsDeleted = ETrue;
sl@0: 	}
sl@0:     
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatMgrServer::FeatureInfoL()
sl@0: // -----------------------------------------------------------------------------
sl@0: 
sl@0: void CFeatMgrServer::FeatureInfoL( RArray<FeatureInfoCommand::TFeature>& aFeatureList, 
sl@0:         CFeatMgrPluginHandler* aPluginHandler )
sl@0:     {
sl@0:     FUNC_LOG
sl@0:      
sl@0:     // Save feature info received from the plugin
sl@0:     TInt pluginCount = iPluginList.Count();
sl@0: 
sl@0:     for ( TInt i = 0; i < pluginCount; i ++ )
sl@0:         {
sl@0:         if ( iPluginList[i].iPluginHandler == aPluginHandler )
sl@0:             {
sl@0:             iRegistry->MergePluginFeaturesL( aFeatureList );
sl@0:             // Send command to load enhanced feature info
sl@0:             TRAPD( err, iPluginList[i].iPluginHandler->SendCommandL( 
sl@0:                 FeatureInfoCommand::ELoadEnhancedFeatureInfoCmdId ) );
sl@0:             // Panic if error sth else than not supported
sl@0:             if ( err != KErrNone && err != KErrNotSupported )
sl@0:                 {
sl@0:                 ERROR_LOG1( "CFeatMgrServer::FeatureInfoL() - panicing due error %d", err );
sl@0:                 ::FmgrFatalErrorL(err, KPanicCategory, EPanicLoadPluginError);
sl@0:                 }
sl@0:             // At this point we have simple feature supported by the plugin.
sl@0:             // If no enhanced feature is supported, but a simple one is, then
sl@0:             // the plugin is ready to be used. Otherwise continue to add the
sl@0:             // enhanced features.
sl@0:             else if( err == KErrNotSupported )
sl@0:             	{
sl@0:             	iPluginList[i].iPluginReady = ETrue;
sl@0:                 }
sl@0:             }
sl@0:         else
sl@0:             {
sl@0:             INFO_LOG( "CFeatMgrServer::FeatureInfo - unknown plugin handler") ;
sl@0:             }
sl@0:         }   
sl@0: 
sl@0:     CheckPluginsReadyL();
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatMgrServer::FeatureInfoL()
sl@0: // -----------------------------------------------------------------------------
sl@0: 
sl@0: void CFeatMgrServer::FeatureInfoL( RFeatureArray& aFeatureList, 
sl@0:         CFeatMgrPluginHandler* aPluginHandler )
sl@0:     {
sl@0:     FUNC_LOG
sl@0:      
sl@0:     // Save feature info received from the plugin
sl@0:     TInt pluginCount = iPluginList.Count();
sl@0: 
sl@0:     for ( TInt i = 0; i < pluginCount; i ++ )
sl@0:         {
sl@0:         if ( iPluginList[i].iPluginHandler == aPluginHandler )
sl@0:             {
sl@0:             iRegistry->MergePluginFeaturesL( aFeatureList );
sl@0:             // Send another command if something left to process
sl@0:             iPluginList[i].iPluginReady = ETrue;
sl@0:             }
sl@0:         else
sl@0:             {
sl@0:             INFO_LOG( "CFeatMgrServer::FeatureInfo - unknown plugin handler") ;
sl@0:             }
sl@0:         }   
sl@0: 
sl@0:     CheckPluginsReadyL();
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatMgrServer::CheckPluginsReadyL()
sl@0: // -----------------------------------------------------------------------------
sl@0: 
sl@0: void CFeatMgrServer::CheckPluginsReadyL()
sl@0:     {
sl@0:     FUNC_LOG
sl@0: 
sl@0:     // If all plugins has responsed iPluginsReady is ETrue
sl@0:     // else iPluginsReady is EFalse;
sl@0:     TInt pluginCount = iPluginList.Count();
sl@0:     
sl@0:     for ( TInt i = 0; i < pluginCount; i ++ )
sl@0:         {
sl@0:         if ( iPluginList[i].iPluginReady )
sl@0:             {
sl@0:             iPluginsReady = ETrue;
sl@0:             }
sl@0:         else
sl@0:             {   
sl@0:             iPluginsReady = EFalse;
sl@0:             break;
sl@0:             }
sl@0:         }
sl@0:     
sl@0:     // If plugins ready, read runtime features and call ServicePendingRequests of sessions.
sl@0:     if ( iPluginsReady )
sl@0:         {
sl@0:         // Load runtimefeatures.txt
sl@0:         if ( !iFeaturesReady )
sl@0:             {
sl@0:             iRegistry->ReadRuntimeFeaturesL( iFeaturesReady );
sl@0:             }
sl@0: 
sl@0:         if ( iPendingRequests )
sl@0:             {
sl@0:             ServicePendingRequests();    
sl@0:             }
sl@0:         }      
sl@0:     }
sl@0:     
sl@0: /**
sl@0:  * Implementation of the pure virtual function.
sl@0:  */
sl@0: void CFeatMgrServer::HandleBackupOperationEventL( const TBackupOperationAttributes& /* aBackupOperationAttributes */ )
sl@0: 	{
sl@0: 	return;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  * There is a flag state variable being passed into Feature Manager as type MBackupObserver::TFileLockFlags.
sl@0:  * Only certain combinations of these flags are valid for Feature Manager and if the combination is 
sl@0:  * not valid, then because there is no way of returning an error it will just set the internal state 
sl@0:  * machine into an "error" state.
sl@0:  * Given our current state and our goto state (i.e. where we are at the moment and where we want to goto)
sl@0:  * the state machine checks that this is a valid path in our state machine and then perform the correct 
sl@0:  * operations to get us to the next valid state. It also calls the correct Feature manager functions to 
sl@0:  * accomplish this operation.
sl@0:  */
sl@0: void CFeatMgrServer::ChangeFileLockL( const TDesC& /* aFileName */, TFileLockFlags aFlags )
sl@0: 	{
sl@0: 	// There is only one file we are concerned with, so
sl@0: 	// don't check the filename matches
sl@0: 	// Default TOperationType type to ENone (we are ignoring this value)
sl@0: 	TBackupOperationAttributes attribs( aFlags, ENone );
sl@0: 	iBurState.BUROperationL( attribs );
sl@0: 
sl@0: 	return;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0:  * Generic return function, to return the state of the machine back to normal.
sl@0:  * This can only occur from certain states.
sl@0:  */
sl@0: BURStatus CFeatMgrServer::Goto_NormalState( BURStatus /* aCurrent */  )
sl@0: 	{
sl@0: 	return EFeatMgrBURState_None;   // all roads lead to normal state
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  * This function handles error recovery from an invalid state. It will return the feature 
sl@0:  * maneger back to normal, in both it's internal state machine state, and it's internal 
sl@0:  * variables.
sl@0:  */
sl@0: BURStatus CFeatMgrServer::Goto_ErrorState( BURStatus aCurrent  )
sl@0: 	{
sl@0: 	BURStatus aNewState = EFeatMgrBURState_None;   // fail safe: all roads lead to normal state
sl@0: 	
sl@0: 	switch( aCurrent )
sl@0: 		{
sl@0: 		case( EFeatMgrBURState_BackupStarted ) :
sl@0: 			iBURInProgress = EFalse;
sl@0: 			ServicePendingRequests();
sl@0: 			break;
sl@0: 		case( EFeatMgrBURState_RestoreStarted ) :
sl@0: 		    iPluginsReady    = EFalse;
sl@0: 		    iPluginsDeleted  = EFalse;
sl@0: 		    iPendingRequests = ETrue;
sl@0: 		    iFeaturesReady   = EFalse;
sl@0: 			// re-read the new features;
sl@0: 			TRAP_IGNORE(ClearFeaturesL() );
sl@0: 			TRAP_IGNORE(LoadFeaturesL() );
sl@0: 			// Stop queuing
sl@0: 			iPluginsReady = ETrue;
sl@0: 			// commit the pending change requests
sl@0: 			ServicePendingRequests();
sl@0: 			break;
sl@0: 		case( EFeatMgrBURState_BackupEnded ) :
sl@0: 		case( EFeatMgrBURState_RestoreEnded ) :
sl@0: 			break;
sl@0: 		default :
sl@0: 			break;
sl@0: 		}
sl@0: 	
sl@0: 	aNewState = EFeatMgrBURState_Error;  // state++
sl@0: 	return aNewState;
sl@0: 	}
sl@0: 
sl@0: BURStatus CFeatMgrServer::Goto_StartBackupState( BURStatus /* aCurrent */ )
sl@0: 	{
sl@0: 	BURStatus aNewState = EFeatMgrBURState_BackupStarted;  // state++
sl@0: 	iBURInProgress = ETrue;
sl@0: 	return aNewState;
sl@0: 	}
sl@0: 
sl@0: BURStatus CFeatMgrServer::Goto_EndBackupState( BURStatus /* aCurrent */  )
sl@0: 	{
sl@0: 	BURStatus aNewState = EFeatMgrBURState_BackupEnded;   // state++
sl@0: 	
sl@0: 	iBURInProgress = EFalse;
sl@0: 	ServicePendingRequests();
sl@0: 	// no error from ServicePendingRequests() is possible
sl@0: 	
sl@0: 	return aNewState;
sl@0: 	}
sl@0: 
sl@0: BURStatus CFeatMgrServer::Goto_StartRestoreState( BURStatus /* aCurrent */  )
sl@0: 	{
sl@0: 	// remarkably like Goto_StartBackupState
sl@0: 	BURStatus aNewState = EFeatMgrBURState_RestoreStarted;  // state++
sl@0: 	iBURInProgress = ETrue;
sl@0: 	return aNewState;
sl@0: 	}
sl@0: 
sl@0: BURStatus CFeatMgrServer::Goto_EndRestoreState( BURStatus /* aCurrent */  )
sl@0: 	{
sl@0: 	BURStatus aNewState = EFeatMgrBURState_Error;   // fail safe
sl@0: 	TInt err( KErrNone );
sl@0: 	iBURInProgress = EFalse;
sl@0: 	iPluginsReady    = EFalse;
sl@0:     iPluginsDeleted  = EFalse;
sl@0:     iPendingRequests = ETrue;
sl@0:     iFeaturesReady   = EFalse;
sl@0: 
sl@0: 	// re-read the new features
sl@0:     // Only call the next function if the previous one was
sl@0:     // successfully completed.
sl@0: 	TRAP(err, ClearFeaturesL() );
sl@0: 	if (err == KErrNone)
sl@0: 		{
sl@0: 		TRAP(err, LoadFeaturesL() );
sl@0: 		}
sl@0: 
sl@0: 	if(err == KErrNone) 
sl@0: 		{
sl@0: 		TRAP(err, HandleRestoredNotificationsL() );
sl@0: 		}
sl@0: 
sl@0: 	if(err == KErrNone)
sl@0: 		{
sl@0: 		// Stop queuing
sl@0: 		iPluginsReady = ETrue;
sl@0: 		
sl@0: 		// commit the pending change requests
sl@0: 		ServicePendingRequests();
sl@0: 		
sl@0: 		// Change state machine
sl@0: 		aNewState = EFeatMgrBURState_RestoreEnded;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		// error condition
sl@0: 		aNewState = EFeatMgrBURState_Error;
sl@0: 		}
sl@0: 	
sl@0: 	return aNewState;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  * This function will load features from files and plugins 
sl@0:  */
sl@0: void CFeatMgrServer::LoadFeaturesL( void )
sl@0: 	{
sl@0:     // Load ROM (Z)
sl@0: 	TRAPD( err, iRegistry->ReadFeatureFilesL() );
sl@0: 	if( KErrNotFound == err)
sl@0: 		{
sl@0: 		ERROR_LOG( "CFeatMgrServer::ConstructL() & CallReadFeatureFilesL() - no feature files found in ROM - going to panic");
sl@0: 		::FmgrFatalErrorL(err, KPanicCategory, EPanicNoFeatureFiles);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		User::LeaveIfError(err);
sl@0: 		}
sl@0: 
sl@0:     // Load RAM (C)
sl@0: 	// List and load plugins and feature info.
sl@0: 	TBool found = LoadPluginsL();
sl@0: 	
sl@0: 	if( found )
sl@0: 	    {
sl@0: 	    // Timer for deleting plugins and for comparing feature lists.
sl@0: 	    iTimer = CFeatMgrTimer::NewL( *this );
sl@0: 	    }
sl@0: 	else
sl@0: 	    {
sl@0: 	    TRAPD( err, iRegistry->ReadRuntimeFeaturesL( iFeaturesReady ) );
sl@0: 		if( KErrNotFound == err)
sl@0: 			{
sl@0: 			::FmgrFatalErrorL(err, KPanicCategory, EPanicNoFeatureFiles);
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			User::LeaveIfError(err);
sl@0: 			}
sl@0: 	    }
sl@0: 
sl@0: 	return;
sl@0: }
sl@0: 
sl@0: 
sl@0: /**
sl@0:  * Discover which features have changes wrt the restore operation
sl@0:  */
sl@0: void CFeatMgrServer::HandleRestoredNotificationsL( void )
sl@0: 	{
sl@0: 	iRegistry->HandleRestoredFeatureNotificationsL();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  * This function will clear features from RAM
sl@0:  */
sl@0: void CFeatMgrServer::ClearFeaturesL( void )
sl@0: 	{
sl@0: 	// Delete plugin handlers    
sl@0:     if ( !iPluginsDeleted )
sl@0:         {
sl@0:         // Delete plugin handlers
sl@0:         TInt count = iPluginList.Count();
sl@0:         for ( TInt i = 0 ; i < count; i++ )
sl@0:             {
sl@0:             delete iPluginList[i].iPluginHandler;
sl@0:             iPluginList[i].iPluginHandler = NULL;
sl@0:             }
sl@0: 
sl@0:         // Reset list of plugins
sl@0:         iPluginList.Reset();
sl@0:         iPluginList.Close();        
sl@0:     	    
sl@0:     	// All plugin handlers deleted
sl@0:     	iPluginsDeleted = EFalse;
sl@0:         } 
sl@0: 
sl@0:     if( NULL != iRegistry )
sl@0:     	{
sl@0:         iRegistry->ResetFeaturesL();
sl@0:         }
sl@0: 
sl@0:     return;
sl@0: }
sl@0: 
sl@0: //  End of File