SS_MORETOCOME
so->so_state |= SS_MORETOCOME;
so->so_state &= ~SS_MORETOCOME;
so->so_state |= SS_MORETOCOME;
so->so_state &= ~SS_MORETOCOME;
if ((so->so_state & SS_MORETOCOME) == 0) {
if ((so->so_state & SS_MORETOCOME) == 0 &&
if ((so->so_state & SS_MORETOCOME) == 0) {