diff -r 4096754ee773 -r 52a167391590 localconnectivityservice/dun/utils/inc/DunSignalNotify.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/localconnectivityservice/dun/utils/inc/DunSignalNotify.h	Wed Sep 01 12:20:40 2010 +0100
@@ -0,0 +1,181 @@
+/*
+* Copyright (c) 2006-2010 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:  Monitors signal changes on network side and reports changes
+*
+*/
+
+
+#ifndef C_CDUNSIGNALNOTIFY_H
+#define C_CDUNSIGNALNOTIFY_H
+
+#include "DunTransUtils.h"
+#include "DunAtCmdHandler.h"
+
+/**
+ *  Class for monitoring line status and reporting changes
+ *
+ *  @lib dunutils.lib
+ *  @since S60 v3.2
+ */
+NONSHARABLE_CLASS( CDunSignalNotify ) : public CActive
+    {
+
+public:
+
+    /**
+     * Two-phased constructor.
+     * @param aUtility Pointer to common utility class
+     * @return Instance of self
+     */
+	static CDunSignalNotify* NewL( MDunTransporterUtilityAux* aUtility );
+
+    /**
+    * Destructor.
+    */
+    virtual ~CDunSignalNotify();
+
+    /**
+     * Resets data to initial values
+     *
+     * @since S60 3.2
+     * @return None
+     */
+    void ResetData();
+
+    /**
+     * Adds callback for line status change controlling
+     * The callback will be called when line status change is detected in
+     * endpoint
+     *
+     * @since S60 3.2
+     * @param aCallback Callback to call when line status changes
+     * @return Symbian error code on error, KErrNone otherwise
+     */
+    TInt AddCallback( MDunConnMon* aCallback );
+
+    /**
+     * Sets media to use for this endpoint monitor (network side)
+     *
+     * @since S60 3.2
+     * @param aComm RComm pointer to use as the endpoint
+     * @return Symbian error code on error, KErrNone otherwise
+     */
+    TInt SetMedia( RComm* aComm );
+
+    /**
+     * Issues request to start monitoring the endpoint for line status change
+     *
+     * @since S60 3.2
+     * @return Symbian error code on error, KErrNone otherwise
+     */
+    TInt IssueRequest();
+
+    /**
+     * Stops monitoring the endpoint for line status change
+     *
+     * @since S60 3.2
+     * @return Symbian error code on error, KErrNone otherwise
+     */
+    TInt Stop();
+
+private:
+
+    CDunSignalNotify( MDunTransporterUtilityAux* aUtility );
+
+    void ConstructL();
+
+    /**
+     * Initializes this class
+     *
+     * @since S60 3.2
+     * @return None
+     */
+    void Initialize();
+
+    /**
+     * Manages signal changes
+     *
+     * @since S60 3.2
+     * @return None
+     */
+    void ManageSignalChange();
+
+    /**
+     * Reports signal change
+     *
+     * @since S60 3.2
+     * @param aSetMask Set the handshaking lines in the mask
+     * @param aClearMask Clear the handshaking lines in the mask.
+     * @return None
+     */
+    void ReportSignalChange( TUint aSetMask, TUint aClearMask );
+
+// from base class CActive
+
+    /*
+     * From CActive.
+     * Gets called when line status changes
+     *
+     * @since S60 3.2
+     * @return None
+     */
+    void RunL();
+
+    /**
+     * From CActive.
+     * Gets called on cancel
+     *
+     * @since S60 3.2
+     * @return None
+     */
+    void DoCancel();
+
+private:  // data
+
+    /**
+     * Callback(s) to call when notification(s) via MDunConnMon to be made
+     * Normally contains only one callback
+     */
+    RPointerArray<MDunConnMon> iCallbacks;
+
+    /**
+     * Pointer to common utility class
+     * Not own.
+     */
+    MDunTransporterUtilityAux* iUtility;
+
+    /**
+     * Current state of signal monitoring: active or inactive
+     */
+    TDunState iSignalNotifyState;
+
+    /**
+     * Signals to listen with RComm::NotifySignalChange()
+     */
+    TUint iListenSignals;
+
+    /**
+     * Signals set when RComm::NotifySignalChange() request completes
+     */
+    TUint iSignals;
+
+    /**
+     * RComm object of network side
+     * Not own.
+     */
+    RComm* iNetwork;
+
+    };
+
+#endif  // C_CDUNSIGNALNOTIFY_H