Date: Thu, 8 Jul 1999 17:48:47 -0400 (EDT) From: "Brian F. Feldman" <green@FreeBSD.org> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Jonathan Lemon <jlemon@americantv.com>, jwd@unx.sas.com, hackers@FreeBSD.org Subject: Re: Strange select/poll behaviour [EBADF inconsistancy] Message-ID: <Pine.BSF.4.10.9907081748000.56445-100000@janus.syracuse.net> In-Reply-To: <199907082145.OAA43211@apollo.backplane.com>
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On Thu, 8 Jul 1999, Matthew Dillon wrote:
> :Hmm, you're right. Arguably, it could return EINVAL. Actually, the
> :man page documents this behavior, although it gets the 256 number wrong.
> :
> : If nfds is greater than the number of open files, select() is not guaran-
> : teed to examine the unused file descriptors. For historical reasons,
> : select() will always examine the first 256 descriptors.
> :
> :--
> :Jonathan
>
> This piece of the manual is justifying the fact that select() is not
> currently checking past the current number of open files -- which
> is how select() works now. The second part of that manual entry is just
> plain wrong: If you pass an nd value less then 256 it will only check that
> number of descriptors, it no longer examines a minimum of 256.
So shouldn't someone correct it? I'll do it if noone else wants to.
>
> It would definitely not be appropriate to return EINVAL.
I concur.
>
> -Matt
> Matthew Dillon
> <dillon@backplane.com>
>
>
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