Date: Thu, 21 Jan 2016 17:25:27 +0100 From: Joerg Sonnenberger <joerg@britannica.bec.de> To: Diane Bruce <db@db.net> Cc: "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: <20160121162527.GA11600@britannica.bec.de> In-Reply-To: <20160121161637.GA83843@night.db.net> References: <ea9f2ab2d4f543c8ad34fdeb082f8c7a@hioexcmbx08-prd.hq.netapp.com> <20160121153636.GA10961@britannica.bec.de> <20160121161637.GA83843@night.db.net>
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On Thu, Jan 21, 2016 at 11:16:37AM -0500, Diane Bruce wrote: > On Thu, Jan 21, 2016 at 04:36:36PM +0100, Joerg Sonnenberger 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. > > Better off using getrlimit(2) I don't think the current process limit has any direct relation to the maximal open file descriptor. Joerg
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