cbs/CbsServer/McnClientSrc/CMcn.cpp
changeset 46 2fa1fa551b0b
parent 42 35488577e233
child 48 78df25012fda
equal deleted inserted replaced
42:35488577e233 46:2fa1fa551b0b
     1 /*
       
     2 * Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies). 
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  Implementation of the class CMcn.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 #include <cmcn.h>
       
    21 #include <ccbsmcnlistener.h>
       
    22 #include <mcbsmcnobserver.h>
       
    23 #include <cbsmcnpanic.h>
       
    24 #include "CbsLogger.h"
       
    25 #include <cmcntopicarray.h>
       
    26 
       
    27 // CONSTANTS
       
    28 const TInt KReservedSpaceForMcnObservers = 3;
       
    29 
       
    30 // ==================== LOCAL FUNCTIONS ====================
       
    31 
       
    32 // ================= MEMBER FUNCTIONS =======================
       
    33 
       
    34 // -----------------------------------------------------------------------------
       
    35 // CMcn::CMcn
       
    36 // C++ default constructor can NOT contain any code, that
       
    37 // might leave.
       
    38 // -----------------------------------------------------------------------------
       
    39 //
       
    40 CMcn::CMcn()
       
    41     {
       
    42     }
       
    43 
       
    44 // -----------------------------------------------------------------------------
       
    45 // CMcn::ConstructL
       
    46 // Symbian 2nd phase constructor can leave.
       
    47 // -----------------------------------------------------------------------------
       
    48 //
       
    49 void CMcn::ConstructL()
       
    50     {    
       
    51     CBSLOGSTRING("CBSMCNCLIENT: >>> CMcn::ConstructL()");    
       
    52 
       
    53     User::LeaveIfError( iSession.Connect() );
       
    54     iObservers = new ( ELeave ) CArrayPtrFlat< MCbsMcnObserver >
       
    55         ( KReservedSpaceForMcnObservers );
       
    56     iMcnListener = CCbsMcnListener::NewL( *this, iSession );
       
    57 
       
    58     CBSLOGSTRING("CBSMCNCLIENT: <<< CMcn::ConstructL()");
       
    59     }
       
    60 
       
    61 // -----------------------------------------------------------------------------
       
    62 // CMcn::NewL
       
    63 // Two-phased constructor.
       
    64 // -----------------------------------------------------------------------------
       
    65 //
       
    66 EXPORT_C CMcn* CMcn::NewL() 
       
    67     {
       
    68     CMcn* self = new ( ELeave ) CMcn;
       
    69     CleanupStack::PushL( self );
       
    70     self->ConstructL();
       
    71     CleanupStack::Pop();
       
    72     return self;
       
    73     }
       
    74 
       
    75     
       
    76 // Destructor
       
    77 EXPORT_C CMcn::~CMcn() 
       
    78     {
       
    79     if ( iObservers != NULL ) 
       
    80         {
       
    81         iObservers->ResetAndDestroy();
       
    82         }
       
    83     delete iObservers;
       
    84     delete iMcnListener;
       
    85     iSession.Close();
       
    86     }
       
    87 
       
    88 // -----------------------------------------------------------------------------
       
    89 // CMcn::RegisterL
       
    90 // Registers an observer to CBS server.
       
    91 // (other items were commented in a header).
       
    92 // -----------------------------------------------------------------------------
       
    93 //
       
    94 EXPORT_C void CMcn::RegisterL( 
       
    95     MCbsMcnObserver* aObserver, 
       
    96     const CMcnTopicArray& aArray ) 
       
    97     {
       
    98     CBSLOGSTRING("CBSMCNCLIENT: >>> CMcn::RegisterL()");
       
    99 
       
   100     __ASSERT_DEBUG( aObserver != 0, CbsMcnPanic( EMcnObserverNull ) );
       
   101     iObservers->AppendL( aObserver );
       
   102     iSession.RegisterL( aArray );
       
   103 
       
   104     CBSLOGSTRING("CBSMCNCLIENT: <<< CMcn::RegisterL()");
       
   105     }
       
   106 
       
   107 // -----------------------------------------------------------------------------
       
   108 // CMcn::UnregisterL
       
   109 // Unregisters a previously registered MCN observer clearing
       
   110 // any topic subscriptions of this client in CBS server.
       
   111 // (other items were commented in a header).
       
   112 // -----------------------------------------------------------------------------
       
   113 //
       
   114 EXPORT_C void CMcn::Unregister( 
       
   115     MCbsMcnObserver* aObserver )
       
   116     {
       
   117     CBSLOGSTRING("CBSMCNCLIENT: >>> CMcn::Unregister()");
       
   118 
       
   119     __ASSERT_DEBUG( aObserver !=0 , CbsMcnPanic( EMcnObserverNull ) );
       
   120     TInt count( iObservers->Count() );
       
   121     for( TInt i = 0; i < count; i++ )
       
   122         {
       
   123         MCbsMcnObserver* observer = iObservers->At( i );
       
   124         if ( observer == aObserver )
       
   125             {
       
   126             iObservers->Delete( i );
       
   127             break;
       
   128             }
       
   129         }
       
   130     
       
   131     // ignore result for now
       
   132     TInt result( KErrNone );
       
   133     TRAP( result, iSession.ClearSubscriptionsL() );
       
   134 
       
   135     CBSLOGSTRING("CBSMCNCLIENT: <<< CMcn::Unregister()");
       
   136     }
       
   137 
       
   138 // -----------------------------------------------------------------------------
       
   139 // CMcn::GetCellInfo
       
   140 // Retrieves the current MCN message (Cell Info, topic 050) from CBS 
       
   141 // server. 
       
   142 // (other items were commented in a header).
       
   143 // -----------------------------------------------------------------------------
       
   144 //
       
   145 EXPORT_C TInt CMcn::GetCellInfo( 
       
   146     TDes& aMcnMessage ) const
       
   147     {
       
   148     return iSession.GetCellInfo( aMcnMessage );
       
   149     }
       
   150 
       
   151 // -----------------------------------------------------------------------------
       
   152 // CMcn::RelayMessageL
       
   153 // Relays aMcnMessage and topic number to the registered observers.
       
   154 // (other items were commented in a header).
       
   155 // -----------------------------------------------------------------------------
       
   156 //
       
   157 void CMcn::RelayMessage( 
       
   158     TCbsMcnMessage& aMcnMessage )
       
   159     {
       
   160     CBSLOGSTRING("CBSMCNCLIENT: >>> CMcn::RelayMessage()");
       
   161 
       
   162     TInt count( iObservers->Count() );
       
   163 
       
   164     CBSLOGSTRING2("CBSMCNCLIENT: CMcn::RelayMessage(): topicNumber: %d", aMcnMessage.iTopicNumber );
       
   165     CBSLOGSTRING2("CBSMCNCLIENT: CMcn::RelayMessage(): Network mode: %d (0=GSM, 1=WCDMA, 2=Not defined)", aMcnMessage.iNetworkMode );
       
   166     CBSLOGSTRING2("CBSMCNCLIENT: CMcn::RelayMessage(): Observer count: %d", count );
       
   167 
       
   168     for ( TInt i = 0; i < count; )
       
   169         {
       
   170         TInt prevCount = count;
       
   171 
       
   172         CBSLOGSTRING2("CBSMCNCLIENT: CMcn::RelayMessage(): Calling CellInfoChanged... Observer: %d", i);
       
   173         
       
   174         // Notify all registered observers        
       
   175         iObservers->At( i )->CellInfoChanged( aMcnMessage );        
       
   176         CBSLOGSTRING("CBSMCNCLIENT: CMcn::RelayMessage(): CellInfoChanged call finished.");
       
   177 
       
   178         // Check if the client unregistered it's observer. If so, we don't
       
   179         // increase the loop counter.
       
   180         count = iObservers->Count();
       
   181         if ( count == prevCount )
       
   182             {
       
   183             i++;
       
   184             }        
       
   185         }
       
   186     CBSLOGSTRING("CBSMCNCLIENT: <<< CMcn::RelayMessage()");
       
   187     }
       
   188 
       
   189 // -----------------------------------------------------------------------------
       
   190 // CMcn::GetInfoMessage
       
   191 // Retrieves the current info message from CBS server. 
       
   192 //
       
   193 // (other items were commented in a header).
       
   194 // -----------------------------------------------------------------------------
       
   195 //
       
   196 EXPORT_C TInt CMcn::GetInfoMessage( 
       
   197     TDes& aInfoMessage, 
       
   198     TInt aTopicNumber ) const
       
   199     {
       
   200     return iSession.GetInfoMessage( aInfoMessage, aTopicNumber );   
       
   201     }
       
   202 
       
   203 //  End of File