ENDPNT_BOUND
(!(endp->e_flags & ENDPNT_BOUND) ||
ENDPNT_WAITING | ENDPNT_BOUND | ENDPNT_STALE);
while (!(endp->e_flags & ENDPNT_BOUND) &&
new->e_flags |= ENDPNT_BOUND;
e->e_flags &= ~ENDPNT_BOUND;
endpt->e_flags &= ~ENDPNT_BOUND;