--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/upnp/upnpstack/upnpconnmanager/inc/upnpconninterfacewatcher.h	Tue Feb 02 01:12:20 2010 +0200
@@ -0,0 +1,178 @@
+/** @file
+* Copyright (c) 2007-2007 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 UPNPCONNINTERFACEWATCHER_H_
+#define UPNPCONNINTERFACEWATCHER_H_
+
+// INCLUDES
+#include <e32base.h>
+#include <in_sock.h>
+#include "upnpipeventnotifier.h"
+
+const TInt KServiceTypeMaxLength = 128;
+
+// FORWARD DECLARATIONS
+class CUpnpIPEventNotifier;
+
+/**
+ * CUpnpConnInterfaceWatcher observer (callback interface).
+ * @since S60 5.0
+ */
+class MUpnpConnInterfaceWatcherObserver
+    {
+public:
+
+    /**
+     * Invoked when network interface goes down
+     */
+    virtual void WlanNetworkLost() = 0;
+    
+    /**
+     * Invoked when address changes
+     */
+    virtual void InterfaceAddressChange( TInetAddr& aAddr ) = 0;
+    
+    };
+
+/**
+ * Class is responsible for network interface change handling.
+ * @since S60 5.0
+ */
+class CUpnpConnInterfaceWatcher : public CActive, public MUpnpIPEventObserver
+    {
+public:
+
+    /**
+     * A two-phased constructor function
+     */
+    static CUpnpConnInterfaceWatcher* NewL( MUpnpConnInterfaceWatcherObserver& aIfObserver,
+                                            RSocketServ& aSockServ, 
+                                            RConnection& aConnection );
+    /**
+     * Destructor
+     */
+    virtual ~CUpnpConnInterfaceWatcher();
+
+	/**
+     * Returns inet address
+     */
+    const TInetAddr& LocalAddress();
+    
+    /**
+     * Creates and subscribes to CUpnpIPEventNotifier instance
+     */
+    void ListenAddressChangeL( TUint aIapId );
+    
+    /**
+     * Get local ip address
+     * @param aInterfaceIndex reference that will be set to interface index
+     */ 
+
+    TInetAddr LocalIpAddress(TInt& aInterfaceIndex);
+
+    /**
+     * Subscribes to Service Change Notification from RConnection.
+     * This notification completes with KErrCancel when connection
+     * is stopped (by WLan Lost or by calling RConnection::Stop())
+     */
+    void SubscribeForConnectionServiceChangeNotifications();
+
+    /**
+     * Cancels pending subscription
+     */
+    void CancelSubscriptionForConnectionServiceChangeNotifications();
+
+private:
+
+    /**
+     * Constructor.
+     */
+    CUpnpConnInterfaceWatcher( MUpnpConnInterfaceWatcherObserver& aIfObserver, 
+                               RSocketServ& aSockServ, 
+                               RConnection& aConnection );
+
+    /**
+     * Second phase constructors
+     */
+    void ConstructL();
+
+private:
+
+    /**
+     * This function will be invoke if IP Event occurs 
+     * Checks if IP address from used interface was changed since last time    
+     */
+    virtual void IPEventOccursL();
+    
+    /**
+     * Sets local address
+     * @param aNew address
+     */    
+    void SetLocalAddress( const TInetAddr& aAddress );
+    
+private:    // from CActive
+
+    /**
+     * RunL
+     * Active object state machine.
+     * @since Series60 5.0 HN
+     */
+    void RunL();
+    
+    /**
+     * DoCancel
+     * Cancel outstanding request(s) and reset the iActive flag.
+     * @since Series60 5.0 HN
+     */
+    void DoCancel();
+    
+    /**
+     * RunError
+     * RunError in case RunL leaves.
+     * @since Series60 5.0 HN
+     */
+    TInt RunError( TInt aError );
+    
+private:
+
+    /* @var iIfObserver Callback interface */
+    MUpnpConnInterfaceWatcherObserver& iIfObserver;
+
+    /* @var iSockServ Socket server session */
+    RSocketServ& iSockServ;
+       
+    /* @var iIapId IAP identifier */
+    TUint iIapId;
+    
+    /* @var iIPEvent IP events notifier */
+    CUpnpIPEventNotifier* iIPEvent;
+        
+    /* @var iLocalIpAddress local IP address */
+    TInetAddr iLocalIpAddress;
+    
+    /* @var iNewISPId variable used in Service Change Notification */
+    TUint32 iNewISPId;
+
+    /* @var iNewServiceType variable used in Service Change Notification */
+    TBuf< KServiceTypeMaxLength > iNewServiceType;
+    
+    /* @var iConnection RConnection reference */
+    RConnection& iConnection;
+    
+    };
+
+#endif /*UPNPCONNINTERFACEWATCHER_H_*/