BPFD_IMMEDIATE
d->bd_flags |= *(u_int *)addr ? BPFD_IMMEDIATE : 0;
if ((d->bd_flags & BPFD_IMMEDIATE) ||
d->bd_immediate = bd->bd_flags & BPFD_IMMEDIATE ? 1 : 0;
if ((d->bd_flags & BPFD_IMMEDIATE) || non_block ||
if (((d->bd_flags & BPFD_IMMEDIATE) || d->bd_state == BPF_TIMED_OUT) &&