cbs/CbsServer/McnClientSrc/CMcn.cpp
author Pat Downey <patd@symbian.org>
Wed, 01 Sep 2010 12:15:03 +0100
branchRCL_3
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parent 43 7d48bed6ce0c
permissions -rw-r--r--
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/*
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* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Implementation of the class CMcn.
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*
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*/
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// INCLUDE FILES
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#include "CMcn.h"
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#include "CCbsMcnListener.h"
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#include "MCbsMcnObserver.h"
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#include "CbsMcnPanic.h"
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#include "CbsLogger.h"
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#include <CMcnTopicArray.h>
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// CONSTANTS
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const TInt KReservedSpaceForMcnObservers = 3;
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// ==================== LOCAL FUNCTIONS ====================
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// ================= MEMBER FUNCTIONS =======================
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// -----------------------------------------------------------------------------
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// CMcn::CMcn
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// C++ default constructor can NOT contain any code, that
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// might leave.
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// -----------------------------------------------------------------------------
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//
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CMcn::CMcn()
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    {
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    }
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// -----------------------------------------------------------------------------
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// CMcn::ConstructL
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// Symbian 2nd phase constructor can leave.
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// -----------------------------------------------------------------------------
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//
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void CMcn::ConstructL()
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    {    
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    CBSLOGSTRING("CBSMCNCLIENT: >>> CMcn::ConstructL()");    
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    User::LeaveIfError( iSession.Connect() );
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    iObservers = new ( ELeave ) CArrayPtrFlat< MCbsMcnObserver >
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        ( KReservedSpaceForMcnObservers );
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    iMcnListener = CCbsMcnListener::NewL( *this, iSession );
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    CBSLOGSTRING("CBSMCNCLIENT: <<< CMcn::ConstructL()");
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    }
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// -----------------------------------------------------------------------------
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// CMcn::NewL
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// Two-phased constructor.
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// -----------------------------------------------------------------------------
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//
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EXPORT_C CMcn* CMcn::NewL() 
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    {
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    CMcn* self = new ( ELeave ) CMcn;
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop();
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    return self;
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    }
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// Destructor
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EXPORT_C CMcn::~CMcn() 
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    {
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    if ( iObservers != NULL ) 
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        {
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        iObservers->ResetAndDestroy();
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        }
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    delete iObservers;
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    delete iMcnListener;
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    iSession.Close();
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    }
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// -----------------------------------------------------------------------------
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// CMcn::RegisterL
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// Registers an observer to CBS server.
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CMcn::RegisterL( 
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    MCbsMcnObserver* aObserver, 
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    const CMcnTopicArray& aArray ) 
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    {
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    CBSLOGSTRING("CBSMCNCLIENT: >>> CMcn::RegisterL()");
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    __ASSERT_DEBUG( aObserver != 0, CbsMcnPanic( EMcnObserverNull ) );
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    iObservers->AppendL( aObserver );
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    iSession.RegisterL( aArray );
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    CBSLOGSTRING("CBSMCNCLIENT: <<< CMcn::RegisterL()");
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    }
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// -----------------------------------------------------------------------------
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// CMcn::UnregisterL
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// Unregisters a previously registered MCN observer clearing
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// any topic subscriptions of this client in CBS server.
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CMcn::Unregister( 
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    MCbsMcnObserver* aObserver )
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    {
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    CBSLOGSTRING("CBSMCNCLIENT: >>> CMcn::Unregister()");
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   118
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    __ASSERT_DEBUG( aObserver !=0 , CbsMcnPanic( EMcnObserverNull ) );
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    TInt count( iObservers->Count() );
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    for( TInt i = 0; i < count; i++ )
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        {
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        MCbsMcnObserver* observer = iObservers->At( i );
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        if ( observer == aObserver )
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            {
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            iObservers->Delete( i );
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            break;
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            }
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        }
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    // ignore result for now
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    TInt result( KErrNone );
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    TRAP( result, iSession.ClearSubscriptionsL() );
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    CBSLOGSTRING("CBSMCNCLIENT: <<< CMcn::Unregister()");
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    }
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// -----------------------------------------------------------------------------
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// CMcn::GetCellInfo
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// Retrieves the current MCN message (Cell Info, topic 050) from CBS 
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// server. 
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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EXPORT_C TInt CMcn::GetCellInfo( 
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    TDes& aMcnMessage ) const
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    {
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    return iSession.GetCellInfo( aMcnMessage );
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    }
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// -----------------------------------------------------------------------------
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// CMcn::RelayMessageL
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// Relays aMcnMessage and topic number to the registered observers.
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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void CMcn::RelayMessage( 
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    TCbsMcnMessage& aMcnMessage )
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    {
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    CBSLOGSTRING("CBSMCNCLIENT: >>> CMcn::RelayMessage()");
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   161
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    TInt count( iObservers->Count() );
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    CBSLOGSTRING2("CBSMCNCLIENT: CMcn::RelayMessage(): topicNumber: %d", aMcnMessage.iTopicNumber );
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    CBSLOGSTRING2("CBSMCNCLIENT: CMcn::RelayMessage(): Network mode: %d (0=GSM, 1=WCDMA, 2=Not defined)", aMcnMessage.iNetworkMode );
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    CBSLOGSTRING2("CBSMCNCLIENT: CMcn::RelayMessage(): Observer count: %d", count );
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   167
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    for ( TInt i = 0; i < count; )
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        {
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        TInt prevCount = count;
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   171
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        CBSLOGSTRING2("CBSMCNCLIENT: CMcn::RelayMessage(): Calling CellInfoChanged... Observer: %d", i);
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        // Notify all registered observers        
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        iObservers->At( i )->CellInfoChanged( aMcnMessage );        
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        CBSLOGSTRING("CBSMCNCLIENT: CMcn::RelayMessage(): CellInfoChanged call finished.");
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        // Check if the client unregistered it's observer. If so, we don't
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        // increase the loop counter.
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        count = iObservers->Count();
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        if ( count == prevCount )
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            {
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            i++;
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            }        
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        }
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    CBSLOGSTRING("CBSMCNCLIENT: <<< CMcn::RelayMessage()");
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    }
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// -----------------------------------------------------------------------------
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// CMcn::GetInfoMessage
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// Retrieves the current info message from CBS server. 
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//
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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EXPORT_C TInt CMcn::GetInfoMessage( 
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    TDes& aInfoMessage, 
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    TInt aTopicNumber ) const
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    {
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    return iSession.GetInfoMessage( aInfoMessage, aTopicNumber );   
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    }
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//  End of File