networkhandling/networkhandlingengine/NetworkHandlingGsmSrc/CNWNetworkMCNEngine.cpp
changeset 0 ff3b6d0fd310
child 5 7237db0d9fca
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/networkhandling/networkhandlingengine/NetworkHandlingGsmSrc/CNWNetworkMCNEngine.cpp	Tue Feb 02 01:11:09 2010 +0200
@@ -0,0 +1,598 @@
+/*
+* Copyright (c) 2002-2009 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:  This module contains the implementation of CNWNetworkMcnEngine
+*                class member functions.
+*
+*/
+
+
+
+// INCLUDE FILES
+#include "CNWGsmSessionImplementation.h"
+#include "CNWGsmMessageHandler.h"
+#include "CNWNetworkMCNEngine.h"
+#include "CNWNetworkMcnTimer.h"
+#include "NWPanic.pan"
+#include "NWLogger.h"
+#include <CMcn.h>
+#include <CMcnTopicArray.h>
+#include <centralrepository.h>
+#include <SettingsInternalCRKeys.h>
+
+// CONSTANTS
+const TUint KNWzero = 0;
+const TInt KMCNOn = 1;
+const TInt KMCNOff = 0;
+
+
+// ============================ MEMBER FUNCTIONS ==============================
+
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::CNWNetworkMcnEngine
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// ----------------------------------------------------------------------------
+//
+CNWNetworkMcnEngine::CNWNetworkMcnEngine(
+        CNWGsmMessageHandler& aMessageHandler,
+        TNWInfo& aNetworkInfo, // ref. to network info struct
+        RMmCustomAPI& aCustomAPI,       //ref. to customAPI
+        CNWGsmNetworkCellReselectionHandler& aCellReselectionHandler )
+        : CActive( EPriorityStandard ),
+          iGsmMessageHandler( aMessageHandler ),
+          iNWNetworkInfo( aNetworkInfo ),
+          iCustomAPI( aCustomAPI ),
+          iCellReselectionHandler( aCellReselectionHandler )
+    {
+    NWLOGSTRING( KNWINT, 
+        "NW:CNWNetworkMcnEngine::CNWNetworkMcnEngine() Begin" );
+    
+    iComparedCellId = KNWzero;  //new cellId that will be used to comparization
+    iListenMCNDisplay = EFalse; //Boolean indicating if to listen MCN Display area
+    
+    CActiveScheduler::Add( this );
+    
+    NWLOGSTRING( KNWOBJECT, 
+        "NW: CNWNetworkMcnEngine::CNWNetworkMcnEngine() End");
+    }
+
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::NewL
+// Symbian two phased constructor.
+// ----------------------------------------------------------------------------
+//
+CNWNetworkMcnEngine* CNWNetworkMcnEngine::NewL(
+        CNWGsmMessageHandler& aMessageHandler,     
+        TNWInfo& aNetworkInfo, // ref. to network info struct
+        RMmCustomAPI& aCustomAPI,       // ref. to customAPI
+        CNWGsmNetworkCellReselectionHandler& aCellReselectionHandler )
+    {
+    NWLOGSTRING( KNWINT, 
+        "NW:CNWNetworkMcnEngine::NewL() Begin" );
+    
+    CNWNetworkMcnEngine* self = new (ELeave) CNWNetworkMcnEngine(
+                                aMessageHandler,
+                                aNetworkInfo,
+                                aCustomAPI,
+                                aCellReselectionHandler );
+    
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+
+    NWLOGSTRING( KNWINT, 
+        "NW:CNWNetworkMcnEngine::NewL() Begin" );
+    
+    return self;
+    }
+
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::ConstructL
+// Symbian default constructor can leave.
+// ----------------------------------------------------------------------------
+//
+void CNWNetworkMcnEngine::ConstructL()
+    {
+    NWLOGSTRING( KNWINT, 
+        "NW:CNWNetworkMcnEngine::ConstructL() Begin" );
+    
+    iTimer = CNWNetworkMcnTimer::NewL();
+    
+    // Connecting and initialization
+    iRepository = CRepository::NewL( KCRUidNetworkSettings );
+    
+    // Get the value from Central Repository
+    iRepository->Get( KSettingsMcnDisplay, iListenMCNDisplay );
+    NWLOGSTRING( KNWMESOUT, 
+        "NW: CNWNetworkMCNEngine::ConstructL: CRepository->Get() called" );
+    NotifyMcnDisplayChanged();
+    // Reset initial values
+    ResetIndicatorValues();
+    
+    NWLOGSTRING( KNWINT, 
+        "NW:CNWNetworkMcnEngine::ConstructL() Begin" );
+    }
+
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::~CNWNetworkMcnEngine
+// Destructor
+// ----------------------------------------------------------------------------
+//
+CNWNetworkMcnEngine::~CNWNetworkMcnEngine()
+    {
+    NWLOGSTRING( KNWINT, 
+        "NW:CNWNetworkMcnEngine::~CNWNetworkMcnEngine() Begin" );
+    
+    Cancel();
+    
+    if( iMcn )
+        {
+        if( iCBSState == EListeningMCN )
+            {
+            iMcn->Unregister( this );
+            NWLOGSTRING( KNWMESOUT, 
+                "NW: CNWNetworkMCNEngine::~CNWNetworkMcnEngine: \
+                iMcn->Unregister() called" );
+            }
+        iMcn = NULL; // CNWGsmNetworkCellReselectionHandler has ownership of iMcn.
+        }
+
+    delete iRepository;    
+    delete iTimer;
+    
+    NWLOGSTRING( KNWOBJECT, 
+        "NW: CNWNetworkMcnEngine::~CNWNetworkMcnEngine() End");
+    }
+
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::CellInfoChanged
+// Gets called when a message of a subscribed topic is received from the 
+// network.
+// (other items were commented in a header).
+// ----------------------------------------------------------------------------
+//
+TInt CNWNetworkMcnEngine::CellInfoChanged(
+    const TCbsMcnMessage& aMcnMessage ) //MCN message received from the network
+    {
+    NWLOGSTRING3( KNWOBJECT, 
+        "NW: CNWNetworkMcnEngine::CellInfoChanged() Begin,\
+        aMcnMessage.iTopicNumber = %d, aMcnMessage.iNetworkMode = %d ",
+        aMcnMessage.iTopicNumber, aMcnMessage.iNetworkMode );
+    
+    TInt errorCode = HandleCBSMessages( aMcnMessage );
+    if ( errorCode == KErrNone )
+        {
+        iGsmMessageHandler.SendMessage( 
+            MNWMessageObserver::ENWMessageCurrentCellInfoMessage );
+        }
+    
+    NWLOGSTRING( KNWOBJECT, 
+        "NW: CNWNetworkMcnEngine::CellInfoChanged() End");
+    return KErrNone;
+    }
+
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::SharedDataCallBack
+// This is a static callback function which is called when a Shared Data's 
+// notify event completes.
+// (other items were commented in a header).
+// ----------------------------------------------------------------------------
+// 
+TInt CNWNetworkMcnEngine::SharedDataCallBack(
+        TAny* aAny )
+    {
+    NWLOGSTRING( KNWOBJECT, 
+        "NW: CNWNetworkMcnEngine::SharedDataCallBack() Begin");
+    
+    CNWNetworkMcnEngine* self = static_cast<CNWNetworkMcnEngine*>( aAny );
+    self->GetMcnDisplayValue();
+    
+    NWLOGSTRING( KNWOBJECT, 
+        "NW: CNWNetworkMcnEngine::SharedDataCallBack() End");
+    return KErrNone;                                     
+    }
+
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::GetMcnDisplayValue
+// Description: This function reads MCN display value from Shared Data or from 
+// Central Repository and decides if to listen for MCN display info changes. 
+// (other items were commented in a header).
+// ----------------------------------------------------------------------------
+// 
+void CNWNetworkMcnEngine::GetMcnDisplayValue()
+    {
+    NWLOGSTRING( KNWOBJECT, 
+        "NW: CNWNetworkMcnEngine::GetMcnDisplayValue() Begin");
+    
+    TInt uid( 0 );
+    // Get the value from Central Repository
+    iRepository->Get( KSettingsMcnDisplay, uid );
+    NWLOGSTRING( KNWMESOUT, 
+        "NW: CNWNetworkMCNEngine::GetMcnDisplayValue: \
+        CRepository->Get() called" );
+  
+    //when cell info display value changes to
+    if( uid == KMCNOn )
+        {
+        NWLOGSTRING( KNWINT, 
+            "NW: CNWNetworkMCNEngine::GetMcnDisplayValue: MCN changed to ON" );
+        iListenMCNDisplay = ETrue;
+        StartIndicatorHandling();
+        }
+    else if( uid == KMCNOff )
+        {
+        NWLOGSTRING( KNWINT, 
+            "NW: CNWNetworkMCNEngine::GetMcnDisplayValue: MCN changed to OFF");
+        // cancel timer and unregister
+        iTimer->Cancel();
+        if( iMcn )
+            {
+            iMcn->Unregister( this );
+            NWLOGSTRING( KNWMESOUT, 
+                "NW: CNWNetworkMCNEngine::GetMcnDisplayValue: \
+                iMcn->Unregister() called");
+            }
+        iState = EIdle;
+        iCBSState = EListeningNone;
+        iListenMCNDisplay = EFalse;
+        
+        ResetIndicatorValues();
+
+        NWLOGSTRING( KNWINT, "NW: CNWNetworkMCNEngine::MCN Displaying");
+        iGsmMessageHandler.SendMessage( 
+            MNWMessageObserver::ENWMessageCurrentCellInfoMessage );
+        }
+    
+    NWLOGSTRING( KNWOBJECT, 
+        "NW: CNWNetworkMcnEngine::GetMcnDisplayValue() End");
+    }
+
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::CellReselection
+// Is called by CNWNetworkCurrentNetworkMonitor in case of cell
+// re-selection.
+// (other items were commented in a header).
+// ----------------------------------------------------------------------------
+//
+void CNWNetworkMcnEngine::CellReselection()
+    {
+    NWLOGSTRING( KNWINT, 
+        "NW: CNWNetworkMCNEngine::CellReselection() Begin" );
+    
+    StartIndicatorHandling();
+    
+    NWLOGSTRING( KNWOBJECT, 
+        "NW: CNWNetworkMcnEngine::CellReselection() End");
+    }
+
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::RegisterToCBS
+// Registers to listening CBS messages.
+// (other items were commented in a header).
+// ----------------------------------------------------------------------------
+//
+void CNWNetworkMcnEngine::RegisterToCBSL(
+    TUint16 aTopic )
+    {
+    NWLOGSTRING( KNWINT, 
+        "NW: CNWNetworkMCNEngine::RegisterToCBSL() Begin" );
+    
+    // Specify topics with CMcnTopicArray.
+    CMcnTopicArray* topics = CMcnTopicArray::NewL();
+    CleanupStack::PushL( topics );
+    topics->AddCbTopicL( aTopic );      // MCN Info (cell info)
+
+    iMcn = iCellReselectionHandler.GetMcnPtr();
+
+    if( iMcn )
+        {
+        NWLOGSTRING( KNWMESOUT, 
+            "NW: CNWNetworkMCNEngine::RegisterToCBS: \
+            iMcn->RegisterL() called" );
+        // Register. Parameter observer is an instance of CCbsMcnObserver.
+        iMcn->RegisterL( this, *topics );
+        NWLOGSTRING( KNWINT, 
+            "NW: CNWNetworkMCNEngine::RegisterToCBS: \
+            Registered to MCN messages" );
+        }
+    else
+        {
+        NWLOGSTRING( KNWINT, 
+            "NW: CNWNetworkMcnEngine::RegisterToCBSL: iMcn = NULL" );
+        }
+
+    CleanupStack::PopAndDestroy( topics );
+    
+    NWLOGSTRING( KNWINT, 
+        "NW: CNWNetworkMCNEngine::RegisterToCBSL() End " );
+    }   
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::StartIndicatorHandling
+// Handles MCN display.
+// (other items were commented in a header).
+// ----------------------------------------------------------------------------
+//
+void CNWNetworkMcnEngine::StartIndicatorHandling()
+    {
+    NWLOGSTRING( KNWINT, 
+        "NW: CNWNetworkMCNEngine::StartIndicatorHandling() Begin" );
+    
+    if( iListenMCNDisplay )
+        {
+        NWLOGSTRING( KNWINT, 
+            "NW: CNWNetworkMCNEngine::StartIndicatorHandling: MCN ON" );
+        if( iCBSState != EListeningMCN )
+            {
+            TRAPD( err, RegisterToCBSL( KNWMcnMsgId ) );
+            if( err != KErrNone )
+                {
+                NWLOGSTRING( KNWERROR, 
+                    "NW: CNWNetworkMcnEngine::StartIndicatorHandling: \
+                    Couldn't register to CBS messages ! ");
+                ResetIndicatorValues();
+                iGsmMessageHandler.SendMessage( 
+                    MNWMessageObserver::ENWMessageCurrentCellInfoMessage );
+                }
+            else
+                {
+                if ( iMcn )
+                    {
+                    iCBSState = EListeningMCN;
+                    }
+                }
+            }
+
+        //Put timer on and wait for max 5 seconds if there is
+        //MCN display active, else wait 120secs.
+        //Set the timer to 120secs is used to wait the message arrival.
+        //If past 120secs, it may be a network problem.
+        //So no need to wait any more, cancel the timer to save resource
+        if( iNWNetworkInfo.iMCNIndicatorType == ENWMCNIndicatorTypeActive )
+            {
+            iTimer->Cancel();
+            iTimer->After( KWaitTimeToClearOldMcnIndicator, this );
+            iState=ECbsWaitingToClearMcnIndicator;
+            NWLOGSTRING( KNWINT, 
+                "NW: CNWNetworkMCNEngine::StartIndicatorHandling: \
+                Started 5s timer" );
+            }
+        else
+            {
+            iTimer->Cancel();
+            iTimer->After( KWaitTimeForNewMcn, this );
+            iState=ECbsWaitingForNewMcn;
+            NWLOGSTRING( KNWINT, 
+                "NW: CNWNetworkMCNEngine::StartIndicatorHandling: Started\
+                 120s timer" );
+            }
+        }
+    else if( iNWNetworkInfo.iMCNIndicatorType == ENWMCNIndicatorTypeActive )
+        {
+        NWLOGSTRING( KNWINT, 
+            "NW: CNWNetworkMCNEngine::StartIndicatorHandling: MCN Displaying");
+        ResetIndicatorValues();
+        iGsmMessageHandler.SendMessage( 
+            MNWMessageObserver::ENWMessageCurrentCellInfoMessage );
+        }
+    
+    NWLOGSTRING( KNWINT, 
+        "NW: CNWNetworkMCNEngine::StartIndicatorHandling() Begin" );
+    }
+
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::HandleCBSMessages
+// Handles CBS messages.
+// (other items were commented in a header).
+// ----------------------------------------------------------------------------
+//
+TInt CNWNetworkMcnEngine::HandleCBSMessages(
+        const TCbsMcnMessage& aMcnMessage )//MCN message received from the network.
+    {
+    NWLOGSTRING2( KNWINT, 
+        "NW: CNWNetworkMCNEngine::HandleCBSMessages() Begin,\
+        aMcnMessage.iTopicNumber = %d ", aMcnMessage.iTopicNumber );
+    
+    //Retrieve CBS message data
+    TMcnMessage mcnInfo = aMcnMessage.iBuffer;
+    TInt length = mcnInfo.Length();
+    TInt err=KErrNone;
+
+    //MCN Display message, check that we really are listening it
+    if( aMcnMessage.iTopicNumber == KNWMcnMsgId && iCBSState == EListeningMCN )
+        {
+        if ( length > KCbsMcnMessageMaxLength )
+            {
+            NWLOGSTRING( KNWINT, 
+                "NW: CNWNetworkMCNEngine::HandleCBSMessages() End,\
+                Incorrect message" );
+            //incorrect message. Nothing to do
+            return KErrArgument;
+            }
+        
+        NWLOGSTRING( KNWINT, 
+            "NW: CNWNetworkMCNEngine::HandleCBSMessages: \
+            MCN message arrived" );
+        // cancel timer and unregister
+        iTimer->Cancel();
+        iState = EIdle;
+        if( iMcn )
+            {
+            iMcn->Unregister( this );
+            NWLOGSTRING( KNWMESOUT, 
+                "NW: CNWNetworkMCNEngine::HandleCBSMessages: \
+                iMcn.Unregister() called" );
+            }
+        iCBSState = EListeningNone;
+
+        if ( length > KNWMCNNameLength )
+            {
+            iNWNetworkInfo.iMCNName.Copy( mcnInfo.Left( KNWMCNNameLength ) );
+            }
+        else
+            {
+            iNWNetworkInfo.iMCNName.Copy( mcnInfo );
+            }
+        
+        iNWNetworkInfo.iMCNIndicatorType = ENWMCNIndicatorTypeActive;
+        NWLOGSTRING( KNWINT, 
+            "NW: CNWNetworkMCNEngine::HandleCBSMessages: MCN display updated");
+        }
+   
+    NWLOGSTRING2( KNWINT, 
+        "NW: CNWNetworkMCNEngine::HandleCBSMessages() End,\
+        err = %d ", err );
+    return err;
+    }
+
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::HandleTimeOutL
+// Handles timeout.
+// (other items were commented in a header).
+// ----------------------------------------------------------------------------
+//
+void CNWNetworkMcnEngine::HandleTimeOut()
+    {
+    NWLOGSTRING( KNWINT, 
+        "NW: CNWNetworkMCNEngine::HandleTimeOut() Begin" );
+    
+    switch ( iState )
+        {
+        case ECbsWaitingToClearMcnIndicator:
+            {
+            //Sends clear indicator to UI and then restarts
+            //timer for 115 more seconds
+            ResetIndicatorValues();
+            iGsmMessageHandler.SendMessage( 
+                MNWMessageObserver::ENWMessageCurrentCellInfoMessage );
+            iTimer->Cancel();
+            iTimer->After( KWaitTimeForNewMcnAfterClearingOld, this );
+            iState=ECbsWaitingForNewMcn;
+            NWLOGSTRING( KNWINT, 
+                "NW: CNWNetworkMCNEngine::HandleTimeOutL: 115s timer started" );
+            }
+            break;
+        case ECbsWaitingForNewMcn:
+            {
+            NWLOGSTRING( KNWINT, 
+                "NW: CNWNetworkMCNEngine::HandleTimeOutL: \
+                115/120s timer expired" );
+            if( iMcn )
+                {
+                //Unregisters when 120/115sec timer expires
+                iMcn->Unregister( this );
+                NWLOGSTRING( KNWMESOUT, 
+                    "NW: CNWNetworkMCNEngine::HandleTimeOutL: \
+                    iMcn.Unregister() called" );
+                }
+            ResetIndicatorValues();
+            iCBSState=EListeningNone;
+            iState=EIdle;
+            }
+            break;
+        case EIdle:
+            break;
+        default:
+            __ASSERT_DEBUG( !iState, Panic( ENWPanicInvalidState ) );
+            break;
+        }
+    
+    NWLOGSTRING( KNWINT, 
+        "NW: CNWNetworkMCNEngine::HandleTimeOut() End" );
+    }
+
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::ResetIndicatorValues
+// Resets Viag's and MCN display's TPEInfo values.
+// (other items were commented in a header).
+// ----------------------------------------------------------------------------
+//
+void CNWNetworkMcnEngine::ResetIndicatorValues()
+    {
+    NWLOGSTRING( KNWINT, 
+        "NW: CNWNetworkMCNEngine::ResetIndicatorValues() Begin" );
+    
+    iNWNetworkInfo.iMCNIndicatorType = ENWMCNIndicatorTypeNone;
+    iNWNetworkInfo.iMCNName.Zero();
+    
+    NWLOGSTRING( KNWINT, 
+        "NW: CNWNetworkMCNEngine::ResetIndicatorValues() End" );
+    }
+    
+  // --------------------------------------------------------------------------
+// CNWNetworkMcnEngine::DoCancel
+// Cancels the pending async. command.
+// (other items were commented in a header).
+// ----------------------------------------------------------------------------
+//
+void CNWNetworkMcnEngine::DoCancel()
+    {
+    NWLOGSTRING( KNWINT, "NW: CNWNetworkMcnEngine::DoCancel() Begin" );
+    // Cancel all the asynchronous service requests
+    iRepository->NotifyCancel( KSettingsMcnDisplay );
+    
+    NWLOGSTRING( KNWINT, 
+        "NW: CNWNetworkMCNEngine::DoCancel() End" );
+    }
+
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::RunL
+// Receives the completion of the pending async. command
+// ----------------------------------------------------------------------------
+//
+void CNWNetworkMcnEngine::RunL()
+    {
+    NWLOGSTRING2( KNWREQEND, 
+        "NET CNWNetworkMcnEngine::RunL() Begin,\
+        iStatus.Int() =  %I ", iStatus.Int() );
+    
+    if ( iStatus == NCentralRepositoryConstants::KUnspecifiedKey || 
+         iStatus == KSettingsMcnDisplay )  
+        {
+        NWLOGSTRING( KNWINT, "NW CNWNetworkMcnEngine::RunL: NotifyRequest !" );
+        // Get the current value from Central Repository
+        GetMcnDisplayValue();
+        NotifyMcnDisplayChanged();   
+        }
+    else
+        {
+        NWLOGSTRING ( KNWERROR, 
+            "NW: CNWNetworkMcnEngine::RunL: NOTIFYREQUEST FAILED!" );
+        }
+    
+    NWLOGSTRING( KNWINT, 
+        "NW: CNWNetworkMCNEngine::RunL() End" );
+    }  
+
+// ----------------------------------------------------------------------------
+// CNWNetworkMcnEngine::NotifyMcnDisplayChanged
+// Calls NotifyRequest from Central Repository 
+// ----------------------------------------------------------------------------
+//
+void CNWNetworkMcnEngine::NotifyMcnDisplayChanged()
+    {
+    NWLOGSTRING( KNWINT, 
+        "NW: CNWNetworkMCNEngine::NotifyMcnDisplayChanged() Begin " );
+    
+    iRepository->NotifyRequest( KSettingsMcnDisplay, iStatus );
+    NWLOGSTRING( KNWREQOUT,
+        "NW CNWNetworkMcnEngine::NotifyMcnDisplayChanged: \
+        CRepository::NotifyRequest" );
+    SetActive();
+    
+    NWLOGSTRING( KNWINT, 
+        "NW: CNWNetworkMCNEngine::NotifyMcnDisplayChanged() End " );
+    }
+
+
+//  End of File