kevent.ByValue[] changes = new kevent.ByValue[2];

		changes[0] = new kevent.ByValue(new NativeLong(f0),
					(short)clib.EVFILT_VNODE,
					(short)(clib.EV_ADD | clib.EV_ENABLE | clib.EV_ONESHOT),
					clib.NOTE_DELETE | clib.NOTE_EXTEND | clib.NOTE_WRITE | clib.NOTE_ATTRIB,
					new NativeLong(), Pointer.NULL);

		changes[1] = new kevent.ByValue(new NativeLong(f1),
					(short)clib.EVFILT_VNODE,
					(short)(clib.EV_ADD | clib.EV_ENABLE | clib.EV_ONESHOT),
					clib.NOTE_DELETE | clib.NOTE_EXTEND | clib.NOTE_WRITE | clib.NOTE_ATTRIB,
					new NativeLong(), Pointer.NULL);

		kevent.ByValue[] events = new kevent.ByValue[2];

		events[0] = new kevent.ByValue();
		events[1] = new kevent.ByValue();

		while(true){
			int nev = clib.kevent(kq, changes, changes.length, events, events.length, null);