Re: [Caml-list] Writing to argv[0]

[Richard Jones <rich@annexia.org>]

On Fri, Oct 10, 2008 at 09:33:17AM -0700, Dave Benjamin wrote:
> On Fri, 10 Oct 2008, Richard Jones wrote:
> 
> >On Thu, Oct 09, 2008 at 05:31:11PM +0200, Basile STARYNKEVITCH wrote:
> >>Dave Benjamin wrote:
> >>>Is there any way for an OCaml program to change its name in the process
> >>>table? Assigning to Sys.argv.(0) has no effect.
> >>
> >>Write a C wrapper for that. And this trick seems Linux specific (it has
> >>no sense in Posix) -maybe working on few other OSes.
> >
> >http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/ps_status.c?rev=1.33.2.1;content-type=text%2Fplain
> >
> >PostgreSQL offers this code to change the proc title on many different
> >platforms.
> 
> Thanks, Rich - this looks very comprehensive - they even go out of their 
> way to support Windows! =) However, unless I'm mistaken, I still have the 
> problem of not being able to access "argc" and "argv" to pass into 
> save_ps_display_args(). I suppose I could embed OCaml in a C program...

Yes, it was intended more as a joke rather than a serious suggestion :-)

I was also talking to Jim Meyering about the possibility of adding
this code to gnulib[1] which would make it more widely available to
all programs.

Rich.

[1] http://www.gnu.org/software/gnulib/

-- 
Richard Jones
Red Hat