--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/natplugins/natptraversalcontroller/inc/cudpcrlfsender.h	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,84 @@
+/*
+* 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 CUDPCRLFSENDER_H
+#define CUDPCRLFSENDER_H
+
+//  INCLUDES
+#include "ccrlfsender.h"
+#include "nattraversalsocketuser.h"
+
+// FORWARD DECLARATIONS
+class MNATTraversalSocketManager;
+
+// CLASS DECLARATION
+/**
+* A class for sending CRLF bursts to network using UDP socket.
+*/
+class CUdpCRLFSender :
+    public CCRLFSender,
+    public MNATTraversalSocketUser
+    {
+    public:    // Constructors and destructor
+
+        CUdpCRLFSender(
+            RSocket& aSocket,
+            const TInetAddr& aAddr,
+            MNATBindingRefresherObserver& aObserver,
+            MNATTraversalSocketManager& aSocketManager );
+
+        ~CUdpCRLFSender();
+
+    public: // From CCRLFSender
+
+        TBool PersistentConnectionRequired() const;
+
+        TBool HasSocket( const RSocket& aSocket ) const;
+
+    public: // From MNATTraversalSocketUser
+
+        const RSocket& Socket() const;
+
+        void SendingAllowed();
+
+        TBool IsSending() const;
+
+        void CancelSending();
+
+    protected: // From CActive
+
+        void DoCancel();
+
+    protected: // From CCRLFSender
+
+        void Send( const TDesC8& aData );
+
+        TBool ReadyToSend();
+
+        void SendingCompleted();
+
+    private: // Data
+
+        RSocket& iSocket;
+        TInetAddr iAddr;
+        MNATTraversalSocketManager& iSocketManager;
+        TBool iAllowedToSend;
+    };
+
+#endif // CUDPCRLFSENDER_H
+
+// End of File