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Date: Thu, 01 Dec 2005 10:32:41 +0100
From: Andre Oppermann <andre@freebsd.org>
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To: Jon <comepu@gmail.com>
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Cc: freebsd-net@freebsd.org
Subject: Re: what means "accf" in soisconnected function? thanks!
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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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