--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/telephonyprotocols/csdagt/src/Nd_CallBack.h	Tue Feb 02 01:41:59 2010 +0200
@@ -0,0 +1,74 @@
+/**
+* Copyright (c) 2003-2009 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:
+* CallBack Timer and Callback state base.
+* 
+*
+*/
+
+
+
+/**
+ @file Nd_callback.h
+ @internalComponent
+*/
+
+#ifndef __ND_CALLBACK_H__
+#define __ND_CALLBACK_H__
+
+#include <comms-infras/cagentsmbase.h>
+
+
+class MNdCallBackObserver
+/**
+Callback state m class.
+*/
+	{
+public:
+	virtual void TimerComplete(TInt aError) =0;
+	};
+
+
+class CCallBackTimer : public CTimer
+/**
+CCallBackTimer class.
+*/
+	{
+public:
+	static CCallBackTimer* NewL(MNdCallBackObserver* aNotifier);
+	CCallBackTimer(MNdCallBackObserver* aNotifier);
+	void Start(TTimeIntervalMicroSeconds32 aTimer);
+private:
+	void RunL();
+private:
+	MNdCallBackObserver* iNotifier;
+	};
+
+
+class CNdCallBackStateBase : public CAgentStateBase, public MNdCallBackObserver
+/**
+CallBack state base.
+*/
+	{
+public:
+	CNdCallBackStateBase(MAgentStateMachineEnv& aSMObserver);
+	void ConstructL();
+	virtual ~CNdCallBackStateBase();
+	//NdCallBack Observer Inheritance
+	virtual void TimerComplete(TInt aError);
+protected:
+	CCallBackTimer* iCallBackTimer;
+	};
+
+#endif