diff -r 000000000000 -r ff3b6d0fd310 cbs/CbsServer/McnClientSrc/Rmcnsubsession.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cbs/CbsServer/McnClientSrc/Rmcnsubsession.cpp	Tue Feb 02 01:11:09 2010 +0200
@@ -0,0 +1,180 @@
+/*
+* Copyright (c) 2003 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:  Implementation of the class RMcnSubSession.
+*
+*/
+
+
+// INCLUDE FILES
+#include "CbsServerConstants.h"
+#include "CbsMcnPanic.h"
+#include "RCbsMcnSession.h"
+#include "RMcnSubSession.h"
+#include "CCbsMcnListener.h"
+#include "CMcnTopicArray.h"
+#include "CbsLogger.h"
+
+// ================= MEMBER FUNCTIONS =======================
+
+// -----------------------------------------------------------------------------
+// RMcnSubSession::RMcnSubSession
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+RMcnSubSession::RMcnSubSession()
+    : iConnected( EFalse )
+    {    //lint !e1928    
+    }
+
+// Destructor
+RMcnSubSession::~RMcnSubSession()
+    {
+    Close();
+    }
+
+// -----------------------------------------------------------------------------
+// RMcnSubSession::Open
+// Creates a MCN subsession to CbsServer.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+TInt RMcnSubSession::Open( 
+    RCbsMcnSession& aMcnSession )
+    {
+    CBSLOGSTRING("CBSMCNCLIENT: >>> RMcnSubSession::Open()");
+
+    if ( !iConnected )
+        {
+        const TIpcArgs args( TIpcArgs::ENothing );
+        TInt result( CreateSubSession( aMcnSession, EMcnCreateSubsession, args ) );
+
+        if ( result == KErrNone )
+            {            
+            CBSLOGSTRING2("CBSMCNCLIENT: RMcnSubSession::Open(): Subsession created, result: %d", result );
+            iConnected = ETrue;
+            } 
+        else
+            {
+            iConnected = EFalse;
+            }
+        CBSLOGSTRING2("CBSMCNCLIENT: RMcnSubSession::Open(), returning %d.", result );        
+        return result;
+        }
+    CBSLOGSTRING("CBSMCNCLIENT: <<< RMcnSubSession::Open(), returning KErrGeneral.");    
+    return KErrGeneral;       
+    }
+
+// -----------------------------------------------------------------------------
+// RMcnSubSession::Close
+// Closes the subsession.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+TInt RMcnSubSession::Close()
+    {
+    CBSLOGSTRING("CBSMCNCLIENT: >>> RMcnSubSession::Close()");
+
+    if ( iConnected ) 
+        {
+        RSubSessionBase::CloseSubSession( EMcnCloseSubsession );
+        iConnected = EFalse;
+        }
+    CBSLOGSTRING("CBSMCNCLIENT: <<< RMcnSubSession::Close()");
+    return KErrNone;
+    }
+
+// -----------------------------------------------------------------------------
+// RMcnSubSession::ReadMcnMessage
+// Request next subscribed MCN message to be delivered to this session.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void RMcnSubSession::ReadMcnMessage( 
+    TRequestStatus& aStatus, 
+    TPckg<TCbsMcnMessage>& aMcnPckg )
+    {
+    __ASSERT_DEBUG( iConnected, CbsMcnPanic( EMcnNotConnected ) );    
+    const TIpcArgs args( &aMcnPckg );
+
+    SendReceive( EMcnNotifyOnChange, args, aStatus );  // asynchronous
+    }
+
+// -----------------------------------------------------------------------------
+// RMcnSubSession::ReadMcnMessageCancel
+// Cancels an outstanding request.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+TInt RMcnSubSession::ReadMcnMessageCancel() 
+    {
+    __ASSERT_DEBUG( iConnected, CbsMcnPanic( EMcnNotConnected ) );
+    const TIpcArgs args( TIpcArgs::ENothing );
+    return SendReceive( EMcnNotifyOnChangeCancel, args );
+    }
+
+// -----------------------------------------------------------------------------
+// RMcnSubSession::RegisterL
+// Subscribes topics given in aArray.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void RMcnSubSession::RegisterL( 
+    const CMcnTopicArray& aArray )
+    {
+    CBSLOGSTRING("CBSMCNCLIENT: >>> RMcnSubSession::RegisterL()");
+
+    __ASSERT_DEBUG( iConnected, CbsMcnPanic( EMcnNotConnected ) );
+    // Store topic numbers into a descriptor.
+    TUint entries( 0 );
+    aArray.EnumerateEntries( entries );
+    TUint number( 0 );
+
+    // Request registration, pass topic numbers one at time to server-side.
+    
+    for( TUint i = 0; i < entries; i++ )
+        {
+        aArray.GetTopicNumber( i, number );
+        const TIpcArgs args( number );        
+
+        CBSLOGSTRING2("CBSMCNCLIENT: RMcnSubSession::RegisterL(): Passing topic number to server: %d", number );
+        User::LeaveIfError( SendReceive( EMcnSubscribeTopic, args ) );        
+        CBSLOGSTRING("CBSMCNCLIENT: RMcnSubSession::RegisterL(): Topic number passed to server OK." );
+        }
+
+    // Tell the server this was enough.
+    const TIpcArgs args2( TIpcArgs::ENothing );
+    User::LeaveIfError( SendReceive( EMcnNoMoreSubscriptions, args2 ) );
+
+    CBSLOGSTRING("CBSMCNCLIENT: <<< RMcnSubSession::RegisterL()");
+    }
+
+// -----------------------------------------------------------------------------
+// RMcnSubSession::ClearSubscriptionsL
+// Clears topic subscriptions of this session in CbsServer
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void RMcnSubSession::ClearSubscriptionsL()
+    {
+    CBSLOGSTRING("CBSMCNCLIENT: >>> RMcnSubSession::ClearSubscriptionsL()");
+
+    __ASSERT_DEBUG( iConnected, CbsMcnPanic( EMcnNotConnected ) );
+    const TIpcArgs args( TIpcArgs::ENothing );
+    User::LeaveIfError( SendReceive( EMcnClearSubscriptions, args ) );
+
+    CBSLOGSTRING("CBSMCNCLIENT: <<< RMcnSubSession::ClearSubscriptionsL(), cleared OK.");    
+    }
+
+//  End of File