--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vpnengine/ikesocket/inc/connobserver.h	Thu Dec 17 09:14:51 2009 +0200
@@ -0,0 +1,138 @@
+/*
+* Copyright (c) 2008 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:  Link connection status observer
+*
+*/
+
+#ifndef C_CONNOBSERVER_H
+#define C_CONNOBSERVER_H
+
+// INCLUDES
+#include <in_sock.h>
+
+// FORWARD DECLARATIONS
+
+class MIkeDebug;
+class RConnection;
+
+/**
+ *  Link disconnection callback interface.
+ *
+ *  Callback interface for notifying about link disconnection.
+ *
+ *  @lib ikesocket.lib
+ */
+NONSHARABLE_CLASS( MConnObserverCallback )
+    {
+public:    
+    /**
+     * Notifies about link disconnection.
+     * 
+     * @param aStatus Link disconnection status
+     */
+    virtual void LinkDisconnected( const TInt aStatus ) = 0;    
+    };
+
+/**
+ *  Link connection status observer.
+ *
+ *  This class provides functionality for observing when link connection has
+ *  been disconnected.
+ *
+ *  @lib ikesocket.lib
+ */
+NONSHARABLE_CLASS( CConnObserver ) : private CActive
+    {
+public:
+    /**
+     * Two-phased constructor.
+     * 
+     * @param aConnection Connection which is used for observing
+     * @param aCallback Callback interface
+     * @param aDebug Debug trace interface
+     */
+    static CConnObserver* NewL( RConnection& aConnection,
+                                MConnObserverCallback& aCallback,
+                                MIkeDebug& aDebug );        
+
+    /**
+     * Destructor.
+     */
+    ~CConnObserver();
+
+    /**
+     * Requests notification about link disconnection. Link disconnection will
+     * be notified via MConnObserverCallback callback interface, when link has
+     * been disconnected.
+     */
+    void NotifyDisconnect();
+    
+    /**
+     * Cancels link disconnection notification request.
+     */
+    void CancelNotify();                    
+
+private:
+    
+// from base class CActive
+    
+    /**
+     * From CActive.
+     * Handles an active object's request completion event about link
+     * disconnection progress notification. Notifies client about link
+     * disconnection via callback interface. Does not leave. 
+     */
+    void RunL();
+    
+    /**
+     * From CActive.
+     * Implements cancellation of a link disconnection progress notification.
+     */
+    void DoCancel();
+
+private:        
+    CConnObserver( RConnection& aConnection,
+                   MConnObserverCallback& aCallback,
+                   MIkeDebug& aDebug );
+    
+    void ConstructL();
+    
+private: // data
+    /**
+     * Connection used for observing link disconnection.
+     * Not own.
+     */
+    RConnection&               iConnection;
+        
+    /**
+     * Buffer for Network Interface Progress.
+     * Own.
+     */
+    TNifProgressBuf            iProgressBuf;
+
+    /**
+     * Callback interface for notifying link disconnection.
+     * Not own.
+     */
+    MConnObserverCallback&     iCallback;
+    
+    /**
+     * Debug trace interface.
+     * Not own.
+     */
+    MIkeDebug&                 iDebug;
+    };
+
+
+#endif // C_CONNOBSERVER_H