physical_RemoveFromSet
return physical_RemoveFromSet(dl->physical, r, w, e);
result += physical_RemoveFromSet(p, r, w, e);
sets = physical_RemoveFromSet(p, r, w, e);
result += physical_RemoveFromSet(p, r, w, e);
extern int physical_RemoveFromSet(struct physical *, fd_set *, fd_set *,