Date: Fri, 2 Nov 2012 12:09:38 -0700 From: mdf@FreeBSD.org To: Eitan Adler <lists@eitanadler.com> Cc: Ian Lepore <freebsd@damnhippie.dyndns.org>, freebsd-current@freebsd.org Subject: Re: FILE's _file can only hold a short Message-ID: <CAMBSHm8Hf5mi36dsa%2BYJwgjkxHe-Pxs6K2OCa=VkbWdxSERbQA@mail.gmail.com> In-Reply-To: <CAF6rxgkdsfDJ0m%2BMTZYn0dBSVGb9jCYCUo3Q9FhT3dEvYJZGJQ@mail.gmail.com> References: <CAMBSHm_-5JUGX5nGyOLjMxpQjnh=7%2B5NkPnP1-i0OjSEKe7D6Q@mail.gmail.com> <1351780831.1120.137.camel@revolution.hippie.lan> <CAF6rxgkdsfDJ0m%2BMTZYn0dBSVGb9jCYCUo3Q9FhT3dEvYJZGJQ@mail.gmail.com>
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On Thu, Nov 1, 2012 at 7:41 PM, Eitan Adler <lists@eitanadler.com> wrote: > On 1 November 2012 10:40, Ian Lepore <freebsd@damnhippie.dyndns.org> wrote: >> On Wed, 2012-10-31 at 11:12 -0700, mdf@freebsd.org wrote: >>> I seem to recall a thread earlier on this limitation, but looking at >>> actual libc/stdio sources, the 4 year old check for open(2)'s fd being >>> less than SHRT_MAX is still there. I thought I saw a patch to change >>> this to an int, but it's not in the tree. Was this in a PR or a >>> mailing list thread or am I just imagining things? >>> >>> We've run into this limitation at work, where some processes have >>> around 32k open file descriptors and then try to use the libc FILE >>> interface. Since we control ABI we can just change this to int, but I >>> had been hoping there was a FreeBSD revision we could pull instead of >>> having another diff. >> >> FWIW, I also remember some discussion recently (this year) on some >> mailing list about this, but I can't find it now. I thought it was >> somehow related to in-lib versus external uses of the funopen() >> function, but I may be conflating two unrelated discusssions in my head. > > Perhaps http://freebsd.1045724.n5.nabble.com/stdio-and-short-file-descriptors-revisited-td5747703.html > ? Yes, that was it exactly. Thanks! My (quick) search had not been fruitful. Thanks, matthew
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