diff -r 000000000000 -r dfb7c4ff071f commsfwsupport/commselements/serverden/src/sd_apiextension.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commsfwsupport/commselements/serverden/src/sd_apiextension.cpp	Thu Dec 17 09:22:25 2009 +0200
@@ -0,0 +1,94 @@
+// Copyright (c) 2005-2009 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:
+// SS_API_EXT.CPP
+// TODO PREQ1116 disabled to get catchup to build #define SYMBIAN_NETWORKING_UPS
+// 
+//
+
+/**
+ @file
+ @released
+*/
+
+#include "sd_apiextension.h"
+
+
+#ifdef _DEBUG
+// Panic category for "absolutely impossible!" vanilla ASSERT()-type panics from this module
+// (if it could happen through user error then you should give it an explicit, documented, category + code)
+_LIT(KSpecAssert_ElemSvrDenApiXC, "ElemSvrDenApiXC");
+#endif
+
+using namespace Elements;
+using namespace Den;
+using namespace Messages;
+using namespace Meta;
+
+//
+// CExtItfMsgPluginInfo
+//
+
+EXPORT_C CExtItfMsgPluginInfo* CExtItfMsgPluginInfo::NewInstanceL(const STypeId& aTypeId)
+	{
+	TUid destroyUid;
+	CExtItfMsgPluginInfo* obj = reinterpret_cast<CExtItfMsgPluginInfo*>(REComSession::CreateImplementationL(aTypeId.iUid, destroyUid, (TAny*)aTypeId.iType));
+	obj->iDestroyUid = destroyUid;
+	return obj;
+	}
+
+EXPORT_C CExtItfMsgPluginInfo::~CExtItfMsgPluginInfo()
+	{
+	__ASSERT_DEBUG(iDestroyUid.iUid!=0, User::Panic(KSpecAssert_ElemSvrDenApiXC, 1));
+	REComSession::DestroyedImplementation(iDestroyUid);
+	}
+
+
+//
+// AIpcExtensionInterfaceBase
+//
+EXPORT_C AIpcExtensionInterfaceBase::AIpcExtensionInterfaceBase()
+:	iMsgPluginInfo(NULL)
+	{
+	}
+
+void AIpcExtensionInterfaceBase::RegisterMessagesL()
+	{
+	//RegisterInterfaceL is reference counted, make sure you always call
+	//it from RegisterMessagesL to avoid premature deregistration scenarios.
+	Meta::STypeId msgTid = MsgImplTid();
+	CExtItfMsgPluginInfo* msgPluginInfo = iMsgPluginInfo;
+	if (iMsgPluginInfo==NULL)
+		{
+		__ASSERT_DEBUG(msgTid.iUid.iUid!=0, User::Panic(KSpecAssert_ElemSvrDenApiXC, 2));
+		msgPluginInfo = static_cast<CExtItfMsgPluginInfo*>(CExtItfMsgPluginInfo::NewInstanceL(msgTid));
+		CleanupStack::PushL(msgPluginInfo);
+		}
+
+	const TImplementationProxy* implProxyTable = msgPluginInfo->ImplementationProxy();
+	TlsGlobals::Get().RegisterInterfaceL(msgTid.iUid, msgPluginInfo->ImplementationProxyTableSize(), implProxyTable);
+	if (iMsgPluginInfo==NULL)
+		{
+		CleanupStack::Pop(msgPluginInfo);
+		iMsgPluginInfo = msgPluginInfo; //Set only when all done
+		}
+	}
+
+void AIpcExtensionInterfaceBase::DeregisterMessages()
+	{
+	TlsGlobals::Get().DeregisterInterface(MsgImplTid().iUid);
+	delete iMsgPluginInfo;
+	iMsgPluginInfo = NULL;
+	}
+
+