--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/natplugins/natptraversalcontroller/inc/cnatbindingstunandcrlfrefresher.h	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,88 @@
+/*
+* Copyright (c) 2007 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 CNATBINDINGSTUNANDCRLFREFRESHER_H
+#define CNATBINDINGSTUNANDCRLFREFRESHER_H
+
+//  INCLUDES
+#include "cnatbindingstunrefresher.h"
+#include "mnatbindingrefresherobserver.h"
+
+// FORWARD DECLARATIONS
+class CUdpCRLFSender;
+class MNATTraversalSocketManager;
+
+// CLASS DECLARATION
+/**
+* A class for STUN based NAT binding refresh.
+*/
+class CNATBindingSTUNAndCRLFRefresher : public CNATBindingSTUNRefresher,
+                                        public MNATBindingRefresherObserver
+    {
+    public:  // Constructors and destructor
+
+        static CNATBindingSTUNAndCRLFRefresher* NewL(
+            CDeltaTimer& aDeltaTimer,
+            TInt aRefreshInterval,
+            MNATBindingRefresherObserver& aObserver,
+            CNATBinding& aNATBinding,
+            RSocket& aSocket,
+            const TInetAddr& aAddr,
+            MNATTraversalSocketManager& aSocketManager );
+
+        static CNATBindingSTUNAndCRLFRefresher* NewLC(
+            CDeltaTimer& aDeltaTimer,
+            TInt aRefreshInterval,
+            MNATBindingRefresherObserver& aObserver,
+            CNATBinding& aNATBinding,
+            RSocket& aSocket,
+            const TInetAddr& aAddr,
+            MNATTraversalSocketManager& aSocketManager );
+
+        ~CNATBindingSTUNAndCRLFRefresher();
+
+    public: // From MNATBindingRefresherObserver
+
+        void NATBindingRefreshComplete( TInt aCompletionCode );
+
+    protected: // From CNATBindingRefresher
+
+        void RefreshTimerExpiredL();
+
+        void CancelRefresh();
+
+    private: // Constructors
+
+        CNATBindingSTUNAndCRLFRefresher(
+            CDeltaTimer& aDeltaTimer,
+            TInt aRefreshInterval,
+            MNATBindingRefresherObserver& aObserver,
+            CNATBinding& aNATBinding );
+
+         void ConstructL(
+            RSocket& aSocket,
+            const TInetAddr& aAddr,
+            MNATTraversalSocketManager& aSocketManager );
+
+    private: // Data
+
+        CUdpCRLFSender* iCRLFSender;
+    };
+
+#endif // CNATBINDINGSTUNANDCRLFREFRESHER_H
+
+// End of File