diff -r 000000000000 -r 094583676ce7 wvuing/IMPSServiceSettingsUI/Src/CWVSettingsUITlsHolder.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wvuing/IMPSServiceSettingsUI/Src/CWVSettingsUITlsHolder.cpp	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,176 @@
+/*
+* 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:  TLS holder for service settings UI
+*
+*/
+
+// INCLUDE FILES
+#include    "CWVSettingsUITlsHolder.h"
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CWVSettingsUITlsHolder::CWVSettingsUITlsHolder
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CWVSettingsUITlsHolder::CWVSettingsUITlsHolder()
+        : iResourceLoaded( EFalse ), iResourceReferenceCount( 0 )
+    {
+    }
+
+
+// -----------------------------------------------------------------------------
+// CWVSettingsUITlsHolder::InstanceL
+// Singleton retrieve method.
+// -----------------------------------------------------------------------------
+//
+CWVSettingsUITlsHolder* CWVSettingsUITlsHolder::InstanceL()
+    {
+    CWVSettingsUITlsHolder* holder = NULL;
+    holder = static_cast<CWVSettingsUITlsHolder*>( Dll::Tls() );
+    if ( !holder )
+        {
+        holder = CWVSettingsUITlsHolder::NewLC();
+        User::LeaveIfError( Dll::SetTls( holder ) );
+        CleanupStack::Pop( holder ); // holder
+        }
+
+    return holder;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CWVSettingsUITlsHolder::DestroySingletonsAndHolder()
+//
+//
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+TInt CWVSettingsUITlsHolder::DestroySingletonsAndHolder()
+    {
+    TInt err = KErrNone;
+
+    CWVSettingsUITlsHolder* holder = NULL;
+    holder = static_cast<CWVSettingsUITlsHolder*>( Dll::Tls() );
+    if ( holder )
+        {
+        //holder exist, so try to delete it
+        err = Dll::SetTls( NULL );
+
+        if ( err == KErrNone )
+            {
+            //we could null the TLS - destroy now self
+            delete holder;
+            }
+        else
+            {
+            //couldn't null the TLS, it's ok
+            //destroy just owned singletons
+            holder->DoReleaseSingletons();
+            }
+        }
+
+    return err;
+    }
+
+
+
+
+// -----------------------------------------------------------------------------
+// CWVSettingsUITlsHolder::NewLC
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CWVSettingsUITlsHolder* CWVSettingsUITlsHolder::NewLC()
+    {
+    CWVSettingsUITlsHolder* self = new( ELeave ) CWVSettingsUITlsHolder;
+    CleanupStack::PushL( self );
+    return self;
+    }
+
+
+
+// Destructor
+CWVSettingsUITlsHolder::~CWVSettingsUITlsHolder()
+    {
+    DoReleaseSingletons();
+    }
+
+
+
+// -----------------------------------------------------------------------------
+// CWVSettingsUITlsHolder::ResourceIsLoaded()
+//
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+TBool CWVSettingsUITlsHolder::ResourceIsLoaded() const
+    {
+    return iResourceLoaded;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CWVSettingsUITlsHolder::ResourceLoaded()
+//
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CWVSettingsUITlsHolder::ResourceLoaded()
+    {
+    iResourceLoaded = ETrue;
+    iResourceReferenceCount++;
+    }
+
+// -----------------------------------------------------------------------------
+// CWVSettingsUITlsHolder::ResourceUnLoaded()
+//
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CWVSettingsUITlsHolder::ResourceUnLoaded()
+    {
+    iResourceReferenceCount--;
+    iResourceLoaded = EFalse;
+    }
+
+// -----------------------------------------------------------------------------
+// CWVSettingsUITlsHolder::OkToUnloadResource()
+//
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+TBool CWVSettingsUITlsHolder::OkToUnloadResource() const
+    {
+    return ( iResourceReferenceCount == 1 );
+    }
+
+// -----------------------------------------------------------------------------
+// CWVSettingsUITlsHolder::DoReleaseSingletons()
+//
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CWVSettingsUITlsHolder::DoReleaseSingletons()
+    {
+    iResourceLoaded = EFalse;
+    iResourceReferenceCount = 0;
+    }
+
+
+
+//  End of File