diff -r 000000000000 -r dfb7c4ff071f commsfwsupport/commselements/meshmachine/src/mm_context.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commsfwsupport/commselements/meshmachine/src/mm_context.cpp	Thu Dec 17 09:22:25 2009 +0200
@@ -0,0 +1,96 @@
+// 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:
+//
+
+#include <elements/mm_context_internal.h>
+#include <elements/mm_activities.h>
+#include <elements/mm_node.h>
+#include <elements/nm_address_internal.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_ElemMeshMachCtxC, "ElemMeshMachCtxC");
+#endif
+
+using namespace MeshMachine;
+using namespace Messages;
+
+EXPORT_C TNodeContextBase::TNodeContextBase(AMMNodeBase& aNode, TSignatureBase& aMessage, const TRuntimeCtxId& aSender, const TNodeId& aRecipient, CNodeActivityBase* aNodeActivity)
+:   iNodeActivity(aNodeActivity),
+	iMessage(aMessage),
+	iNode(aNode),
+	iReturn(KErrNone),
+	iPeer(NULL),
+	iSender(aSender),
+	iRecipient(aRecipient)
+	{
+	const TNodeCtxId* recipient = address_cast<const TNodeCtxId>(&aRecipient);
+	__ASSERT_DEBUG(iNodeActivity==NULL || recipient==NULL || recipient->IsNull() || iNodeActivity->ActivityId() == recipient->NodeCtx(), User::Panic(KSpecAssert_ElemMeshMachCtxC, 1));
+
+	//We only allow TNodeNullContext or the aSender must be valid
+	__ASSERT_DEBUG((aSender.IsNull() && aRecipient.IsNull()) || (!aSender.IsNull() && !aRecipient.IsNull()), User::Panic(KSpecAssert_ElemMeshMachCtxC, 2));
+	if (!iSender.IsNull())
+		{
+		if (iSender == aNode.Id())
+			{
+			iPeer = &aNode.SelfInterface();
+			}
+		else
+			{
+			iPeer = aNode.FindClient(iSender);
+			}
+		}
+	}
+
+EXPORT_C TNodeContextBase::~TNodeContextBase()
+	{
+	iPeer = NULL;
+	}
+
+EXPORT_C TUint16 TNodeContextBase::ActivityId() const
+	{
+	return iNodeActivity? iNodeActivity->ActivityId() : KActivityNull;
+	}
+
+EXPORT_C const TNodeId& TNodeContextBase::NodeId() const
+	{
+	return iNode.Id();
+	}
+
+EXPORT_C void TNodeContextBase::PostToSender(const TSignalBase& aMessage) const
+	{
+	if (iNodeActivity)
+		{
+		RClientInterface::OpenPostMessageClose(TNodeCtxId(iNodeActivity->ActivityId(), NodeId()), iSender, aMessage);
+		}
+	else
+		{
+		//TODO[PROD] - try to use iPeer (can be used for majority of cases)
+		RClientInterface::OpenPostMessageClose(iRecipient, iSender, aMessage);
+		}
+	}
+
+EXPORT_C TBool TNodeContextBase::IsPeer() const
+	{
+	return iPeer && iPeer != &iNode.SelfInterface();
+	}
+
+EXPORT_C TBool TNodeContextBase::IsSelf() const
+	{
+	return iPeer == &iNode.SelfInterface();
+	}
+
+