Function ttydisc_optimize

components/lwp/terminal/freebsd/tty_ttydisc.c:621–645

set optimize flags if possible */

/* set optimize flags if possible */
void ttydisc_optimize(struct lwp_tty *tp)
{
    tty_assert_locked(tp);

    if (ttyhook_hashook(tp, rint_bypass))
    {
        tp->t_flags |= TF_BYPASS;
    }
    else if (ttyhook_hashook(tp, rint))
    {
        tp->t_flags &= ~TF_BYPASS;
    }
    else if (!CMP_FLAG(i, ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP | IXON) &&
             (!CMP_FLAG(i, BRKINT) || CMP_FLAG(i, IGNBRK)) &&
             (!CMP_FLAG(i, PARMRK) ||
              CMP_FLAG(i, IGNPAR | IGNBRK) == (IGNPAR | IGNBRK)) &&
             !CMP_FLAG(l, ECHO | ICANON | IEXTEN | ISIG | PENDIN))
    {
        tp->t_flags |= TF_BYPASS;
    }
    else
    {
        tp->t_flags &= ~TF_BYPASS;
    }
}

void ttydisc_modem(struct lwp_tty *tp, int open)
{