get number of open files in a process?

[Diane Bruce]

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)

> 
> Joerg
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Diane
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