static void pty_chr_update_read_handler_locked(CharDriverState *chr)

{

    PtyCharDriver *s = chr->opaque;

    GPollFD pfd;



    pfd.fd = g_io_channel_unix_get_fd(s->fd);

    pfd.events = G_IO_OUT;

    pfd.revents = 0;

    g_poll(&pfd, 1, 0);

    if (pfd.revents & G_IO_HUP) {

        pty_chr_state(chr, 0);

    } else {

        pty_chr_state(chr, 1);

    }

}
