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diff --git a/src/knemod/interfacemonitor.h b/src/knemod/interfacemonitor.h
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+/* This file is part of KNemo
+   Copyright (C) 2004, 2006 Percy Leonhardt <percy@eris23.de>
+
+   KNemo is free software; you can redistribute it and/or modify
+   it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   KNemo is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this library; see the file COPYING.LIB.  If not, write to
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#ifndef INTERFACEMONITOR_H
+#define INTERFACEMONITOR_H
+
+#include <qobject.h>
+
+#include "data.h"
+
+class Interface;
+
+/**
+ * This class monitors the interface for possible state changes and
+ * for incoming and outgong traffic. If the state changed or traffic
+ * was transmitted it sends an according signal.
+ *
+ * @short Monitor changes of the interface
+ * @author Percy Leonhardt <percy@eris23.de>
+ */
+
+class InterfaceMonitor : public QObject
+{
+    Q_OBJECT
+public:
+    /**
+     * Default Constructor
+     */
+    InterfaceMonitor(QObject* parent = 0L, const char* name = 0L);
+
+    /**
+     * Default Destructor
+     */
+    virtual ~InterfaceMonitor();
+
+    /**
+     * Tell the monitor to check the status of the interface
+     */
+    void checkStatus( Interface* interface );
+
+signals:
+    // the interface is now connected
+    void available( int );
+    // the interface is now disconnected
+    void notAvailable( int );
+    // the interface no longer exists
+    void notExisting( int );
+    // there was incoming and/or outgoing traffic
+    void statusChanged( int );
+    // the amount of incoming traffic (for statistics)
+    void incomingData( unsigned long );
+    // the amount of outgoing traffic (for statistics)
+    void outgoingData( unsigned long );
+};
+
+#endif // INTERFACEMONITOR_H