Activity for setting a drop-out trajectory for unfinished arrivals, i.e.,
those dropped from a resource (due to preemption, resource shrinkage or a
rejected seize
) or those that leave
a trajectory.
handle_unfinished(.trj, handler)
the trajectory object.
trajectory object to handle unfinished arrivals. A NULL
value will unset the drop-out trajectory.
Returns the trajectory object.