diff -r 000000000000 -r bde4ae8d615e os/mm/mmlibs/mmfw/inc/mmf/server/mmfsubthreadbaseimpl.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/mm/mmlibs/mmfw/inc/mmf/server/mmfsubthreadbaseimpl.h	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,116 @@
+// Copyright (c) 2002-2009 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:
+//
+
+#ifndef __MMFSUBTHREADBASE_IMPL_H__
+#define __MMFSUBTHREADBASE_IMPL_H__
+
+#include <e32base.h>
+#include <e32std.h>
+#include <mmf/common/mmfpaniccodes.h>
+#include <mmf/common/mmfcontroller.h>
+#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS
+#include <mmf/common/mmfipcserver.h>
+#endif
+
+
+/**
+@internalTechnology
+
+Used to Kill the subthread either immediately or after a timeout.
+Used by the subthread on startup to prevent orphaning if no sessions are created to it.
+*/
+class CMMFSubThreadShutdown : public CTimer
+	{
+	enum {EMMFSubThreadShutdownDelay=1000000};	// 1s
+public:
+	static CMMFSubThreadShutdown* NewL();
+	CMMFSubThreadShutdown();
+	void ConstructL();
+	void Start();
+	void ShutdownNow();
+private:
+	void RunL();
+	};
+
+/**
+@internalTechnology
+
+Subthread server base class.
+Provides session counting and will kill the subthread immediately when the session count reaches zero.
+Starts the shutdown timer on construction to prevent orphaning if no sessions are created.
+*/
+class CMMFSubThreadServer : public CMmfIpcServer
+	{
+public:
+	virtual ~CMMFSubThreadServer();
+	virtual void SessionCreated();
+	virtual TInt RunError(TInt aError);
+	virtual void ShutdownNow();
+protected:
+	virtual CMmfIpcSession* NewSessionL(const TVersion& aVersion) const = 0;
+	CMMFSubThreadServer(TInt aPriority);
+	void ConstructL();
+private:
+	CMMFSubThreadShutdown* iShutdownTimer;
+	};
+
+/**
+@internalTechnology
+
+Used to hold on to an RMessage so we can complete it asynchronously to send an event to the main thread.
+*/
+class CMMFSubThreadEventReceiver : public CBase
+	{
+public:
+	static CMMFSubThreadEventReceiver* NewL(const RMmfIpcMessage& aMessage);
+	~CMMFSubThreadEventReceiver();
+	void SendEvent(const TMMFEvent& aEvent);
+private:
+	CMMFSubThreadEventReceiver(const RMmfIpcMessage& aMessage);
+private:
+	RMmfIpcMessage iMessage;
+	TBool iNeedToCompleteMessage;
+	};
+
+/**
+@internalTechnology
+
+Subthread session base class.
+Derived classes must implement the ServiceL() method.
+*/
+class CMMFSubThreadSession : public CMmfIpcSession, public MAsyncEventHandler
+	{
+public:
+	virtual ~CMMFSubThreadSession();
+	void CreateL(const CMmfIpcServer& aServer);
+	virtual void ServiceL(const RMmfIpcMessage& aMessage) = 0;
+	//from MAsyncEventHandler
+	TInt SendEventToClient(const TMMFEvent& aEvent);
+protected:
+	CMMFSubThreadSession() {};
+	TBool ReceiveEventsL(const RMmfIpcMessage& aMessage);
+	TBool CancelReceiveEvents();
+	TBool ShutDown();
+protected:
+	CMMFSubThreadServer* iServer;
+private:
+	CMMFSubThreadEventReceiver* iEventReceiver;
+	RArray<TMMFEvent> iEvents;
+	};
+
+
+
+#endif
+