--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/natplugins/natptraversalcontroller/inc/cnatbindingstunrefresher.h	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,69 @@
+/*
+* 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 CNATBINDINGSTUNREFRESHER_H
+#define CNATBINDINGSTUNREFRESHER_H
+
+//  INCLUDES
+#include "cnatbindingrefresher.h"
+
+// FORWARD DECLARATIONS
+class CNATBinding;
+
+// CLASS DECLARATION
+/**
+* A class for STUN based NAT binding refresh.
+*/
+class CNATBindingSTUNRefresher : public CNATBindingRefresher
+    {
+    public:  // Constructors and destructor
+
+        CNATBindingSTUNRefresher(
+            CDeltaTimer& aDeltaTimer,
+            TInt aRefreshInterval,
+            MNATBindingRefresherObserver& aObserver,
+            CNATBinding& aNATBinding );
+
+        ~CNATBindingSTUNRefresher();
+
+    public: // From CNATBindingRefresher
+
+        TBool HasSocket(const RSocket& aSocket) const;
+
+    protected: // From CNATBindingRefresher
+
+        TInt RefreshInterval();
+
+        virtual void RefreshTimerExpiredL();
+
+        virtual void CancelRefresh();
+
+    protected: // Data
+
+        CNATBinding& iNATBinding;
+
+    private: // Data
+
+        TInt iRefreshInterval;
+        TInt64 iRandomSeed;
+
+    friend class UT_CNATBindingSTUNRefresher;
+    };
+
+#endif // CNATBINDINGSTUNREFRESHER_H
+
+// End of File