/*
 *
 * call-seq:
 *
 *      Kgio.accept_nonblock? -> true or false
 *
 * Returns true if newly accepted Kgio::Sockets are created with the
 * O_NONBLOCK file status flag, false if not.
 */
static VALUE get_nonblock(VALUE mod)
{
        return (accept4_flags & SOCK_NONBLOCK)==SOCK_NONBLOCK ? Qtrue : Qfalse;
}