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Date:      Thu, 21 Jan 2016 16:51:53 +0100
From:      =?UTF-8?Q?Fernando_Apestegu=C3=ADa?= <fernando.apesteguia@gmail.com>
To:        "Batutis, Ed" <Ed.Batutis@netapp.com>,  "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>
Subject:   Re: get number of open files in a process?
Message-ID:  <CAGwOe2Zdjkc0DdkW11SvpyR7zDsAGNToanfE1RggtrbgRww-nA@mail.gmail.com>
In-Reply-To: <20160121153636.GA10961@britannica.bec.de>
References:  <ea9f2ab2d4f543c8ad34fdeb082f8c7a@hioexcmbx08-prd.hq.netapp.com> <20160121153636.GA10961@britannica.bec.de>

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On Thu, Jan 21, 2016 at 4:36 PM, Joerg Sonnenberger
<joerg@britannica.bec.de> wrote:
> On Thu, Jan 21, 2016 at 01:34:18PM +0000, Batutis, Ed wrote:
>> I need to determine the number of open files in my process - all types of file handles total - sockets, files, everything.
>
> Use getdtablesize() to get the current largest known fd. If you want,
> you can afterwards loop and use fcntl with F_GETFD to check if the
> descriptor is still open.

I don't have a FreeBSD box in front of me right now, but don't we have
this information in the sysctl tree? I remember we have the current
system-wide open fd's...

Cheers.

>
> Joerg
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