diff -r 000000000000 -r 15bf7259bb7c uiacceltk/hitchcock/ServerCore/Src/alfsrvsubsessionbase.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiacceltk/hitchcock/ServerCore/Src/alfsrvsubsessionbase.cpp	Tue Feb 02 07:56:43 2010 +0200
@@ -0,0 +1,242 @@
+/*
+* Copyright (c) 2006 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:   Sub session base.
+*
+*/
+
+
+
+#include "alf/alfappserver.h"
+#include "alf/alfappsrvsessionbase.h"
+#include "alfsrvsubsessionbase.h"
+#include "alflogger.h"
+
+NONSHARABLE_CLASS(CAlfSrvSubSessionBase::TPrivateData)
+    {
+    public: 
+        MAlfExtension* iObject; // owned, use Release() to destroy
+    };
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+CAlfSrvSubSessionBase::CAlfSrvSubSessionBase( CAlfAppSrvSessionBase& aSession )
+    : iSession( aSession )
+    {
+    }
+
+CAlfSrvSubSessionBase* CAlfSrvSubSessionBase::NewLC( const RMessage2& aMessage, 
+                                                    TInt aImplementationUid,  
+                                                    TInt aImplementationId,
+                                                    CAlfAppSrvSessionBase& aSession) 
+    {
+    CAlfSrvSubSessionBase* me = new (ELeave) CAlfSrvSubSessionBase(aSession);
+    CleanupClosePushL(*me);
+    me->ConstructL(aMessage, aImplementationUid, aImplementationId);
+    return me;
+    }
+
+void CAlfSrvSubSessionBase::ConstructL(const RMessage2& aMessage, 
+                                       TInt aImplementationUid,  
+                                       TInt aImplementationId )
+    {    
+    ConstructL();
+    
+    // leaves if no implementation found   
+    iData->iObject = iSession.AlfServer()->CreateExtensionL(
+                           aImplementationUid, aImplementationId,aMessage);
+
+    iFactoryUid = aImplementationUid;
+    }
+
+
+// ---------------------------------------------------------------------------
+// 2nd phase constructor
+// ---------------------------------------------------------------------------
+//
+void CAlfSrvSubSessionBase::ConstructL()
+    {
+    iData = new (ELeave) TPrivateData;
+    
+    iData->iObject = 0;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CAlfSrvSubSessionBase::~CAlfSrvSubSessionBase()
+    {
+    if (iData && iData->iObject)
+        {
+        // todo: notify server about implementation removal
+        iData->iObject->Release();
+        }
+        
+    delete iData;
+    }
+  
+// ---------------------------------------------------------------------------
+// Process message
+// ---------------------------------------------------------------------------
+//
+void CAlfSrvSubSessionBase::ProcessMessageL(const RMessage2& aMessage)
+    {
+    // Call the virtual function.
+    DoProcessMessageL( aMessage );
+    }
+  
+// ---------------------------------------------------------------------------
+// Processes the message.
+// ---------------------------------------------------------------------------
+//  
+void CAlfSrvSubSessionBase::DoProcessMessageL(const RMessage2& aMessage)
+    {
+    if (iData && iData->iObject)
+        {
+        // session owns the buffers and everything related to msg handling     
+        CAlfClientMessage* msg = iSession.CreateNewMessageHolderL(aMessage);
+         
+        TRAPD(err, iData->iObject->HandleCmdL(msg->iDecodedOp, 
+                                              *msg->iInBuf, msg->ReplyBufAsTDes8()));
+
+        iSession.CompleteCmd(0, err);  
+        return;
+        }
+
+    User::Leave(KErrNotSupported);
+    }
+  
+// ---------------------------------------------------------------------------
+// Returns the session
+// ---------------------------------------------------------------------------
+//  
+CAlfAppSrvSessionBase& CAlfSrvSubSessionBase::Session()
+    {
+    return iSession;
+    }
+
+
+MHuiVisualOwner* CAlfSrvSubSessionBase::AsVisualOwner()
+    {
+    if (iData && iData->iObject)
+        {
+        return static_cast<MHuiVisualOwner*>(iData->iObject->GetInterface(EHuiInterfaceVisualOwner));
+        }
+
+    return 0;
+    }
+
+CHuiControl* CAlfSrvSubSessionBase::AsHuiControl()
+    {
+    if (iData && iData->iObject)
+        {
+        return static_cast<CHuiControl*>(iData->iObject->GetInterface(EHuiObjectTypeControl));
+        }
+
+    return 0;
+    }
+
+CHuiVisual* CAlfSrvSubSessionBase::AsHuiVisual()
+    {
+    if (iData && iData->iObject)
+        {
+        return static_cast<CHuiVisual*>(iData->iObject->GetInterface(EHuiObjectTypeVisual));
+        }
+
+    return 0;
+    }
+
+CHuiLayout* CAlfSrvSubSessionBase::AsHuiLayout()
+    {
+    if (iData && iData->iObject)
+        {
+        return static_cast<CHuiLayout*>(iData->iObject->GetInterface(EHuiObjectTypeLayout));
+        }
+
+    return 0;
+    }
+
+CHuiBrush* CAlfSrvSubSessionBase::AsHuiBrush()
+    {
+    if (iData && iData->iObject)
+        {
+        return static_cast<CHuiBrush*>(iData->iObject->GetInterface(EHuiObjectTypeBrush));
+        }
+
+    return 0;
+    }
+
+MHuiMappingFunction* CAlfSrvSubSessionBase::AsMappingFunction()
+    {
+    if (iData && iData->iObject)
+        {
+        return static_cast<MHuiMappingFunction*>(iData->iObject->GetInterface(EHuiInterfaceMappingFunction));
+        }
+
+    return 0;
+    }
+
+CHuiControlGroup* CAlfSrvSubSessionBase::AsHuiControlCroup()
+    {
+    if (iData && iData->iObject)
+        {
+        return static_cast<CHuiControlGroup*>(iData->iObject->GetInterface(EHuiObjectTypeControlGroup));
+        }
+
+    return 0;    
+    }
+    
+CHuiDisplay* CAlfSrvSubSessionBase::AsHuiDisplay()
+    {
+    if (iData && iData->iObject)
+        {
+        return static_cast<CHuiDisplay*>(iData->iObject->GetInterface(EHuiObjectTypeDisplay));
+        }
+
+    return 0;    
+    }
+
+CAlfBrushHandler* CAlfSrvSubSessionBase::AsBrushHandler()
+    {
+    if (iData && iData->iObject)
+        {
+        return static_cast<CAlfBrushHandler*>(iData->iObject->GetInterface(EAlfBrushHandler));
+        }
+
+    return 0;    
+    }
+
+MAlfExtension* CAlfSrvSubSessionBase::AsCommandHandler()
+    {
+    if (iData)
+        {
+        return iData->iObject;
+        }
+
+    return 0;    
+    }
+
+// Todo: Currently we don't support trulu asynch operations as 
+// MAlfExtension does not have interfaces to utilize for this purpose
+//
+// It should be evaluated whether there are real use cases for asynchronous command handling
+void CAlfSrvSubSessionBase::CancelAsynchRequests()
+    {
+    }
+