/*
 * Copyright 2003-2005, Haiku Inc.
 * Distributed under the terms of the MIT License.
 */

#ifndef _PPP_INTERFACE_LISTENER__H
#define _PPP_INTERFACE_LISTENER__H

#include <PPPManager.h>
#include <Locker.h>

class BHandler;


#define PPP_REPORT_MESSAGE      'P3RM'
        //!< The what field of PPPInterfaceListener report messages.


class PPPInterfaceListener {
        public:
                PPPInterfaceListener(BHandler *target);
                PPPInterfaceListener(const PPPInterfaceListener& copy);
                ~PPPInterfaceListener();
                
                status_t InitCheck() const;
                
                //!     Returns the target BHandler for the report messages.
                BHandler *Target() const
                        { return fTarget; }
                void SetTarget(BHandler *target);
                
                //!     Returns whether the listener is watching an interface.
                bool IsWatching() const
                        { return fIsWatching; }
                //!     Returns which interface is being watched or \c PPP_UNDEFINED_INTERFACE_ID.
                ppp_interface_id Interface() const
                        { return fInterface; }
                
                //!     Returns the internal PPPManager object used for accessing the PPP stack.
                const PPPManager& Manager() const
                        { return fManager; }
                
                bool WatchInterface(ppp_interface_id ID);
                void WatchManager();
                void StopWatchingInterface();
                void StopWatchingManager();
                
                //!     Just sets the target to the given listener's target.
                PPPInterfaceListener& operator= (const PPPInterfaceListener& copy)
                        { SetTarget(copy.Target()); return *this; }

        private:
                void Construct();

        private:
                BHandler *fTarget;
                thread_id fReportThread;
                
                bool fIsWatching;
                ppp_interface_id fInterface;
                
                PPPManager fManager;
};


#endif