Jon wrote:
>
> I am reading 'soisconnected' function in 'Uipc_socket2.c' file.
> I find this lines. But I cannot find accf's mean. can you explain to me?thank
> you very much!
This is the accept filter stuff we have. Take a look at setsockopt(2)
and accept_filter(9).
--
Andre
> if ((so->so_options & SO_ACCEPTFILTER) == 0) {
> ...
> } else {
> ACCEPT_UNLOCK();
> SOCK_LOCK(so);
> so->so_upcall =
> head->so_accf->so_accept_filter->accf_callback;
> so->so_upcallarg = head->so_accf->so_accept_filter_arg;
> so->so_rcv.sb_flags |= SB_UPCALL;
> so->so_options &= ~SO_ACCEPTFILTER;
> SOCK_UNLOCK(so);
> so->so_upcall(so, so->so_upcallarg, M_DONTWAIT);
> }
>
>
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