Re: Change program name of httpd process

[Stas Bekman <suppressed>]

Oleg Shaikhatarov wrote:
> Stas Bekman wrote:
>
> > Oleg Shaikhatarov wrote:
> >
> > > Hello, all!
> > >
> > > I need to change proctitle (called $PROGRAM_NAME or $0 in perl) of
> > > httpd process from mod_perl. Simple change of $0 variable works well
> > > for standalone perl program, but don't work under mod_perl. 
> > > I'm not sure if it's possible, but if anyone have an idea how to do
> > > this please help.
> >
> > please give us some more details. What do you do and what doesn't
> > work. 
> > e.g. Apache::Registry sets $0 to the location of the currently
> > processed script. Why cannot you do the same?
>
>
> Thanks for the response.
>
> I need to change program name as it seen by "ps" command.
>
> In other words "ps ax | grep http" gives something like:
>
> 21718 ?        S      0:00 /usr/sbin/httpd -DHAVE_ACCESS -DHAVE_PROXY 
> 21719 ?        S      0:00 /usr/sbin/httpd -DHAVE_ACCESS -DHAVE_PROXY 
> 21720 ?        S      0:00 /usr/sbin/httpd -DHAVE_ACCESS -DHAVE_PROXY 
> 23140 pts/4    S      0:00 grep http
>
> But I need this output to be:
>
> 21718 ?        S      0:00 /usr/sbin/httpd -DHAVE_ACCESS -DHAVE_PROXY
> 21719 ?        S      0:00 my custom title here
> 21720 ?        S      0:00 my another custom title here
> 23140 pts/4    S      0:00 grep http
>
> And I need to change this from mod_perl.

I understood that. You aren't saying *where* do you need it, that's why 
I've asked for more details.

If you want to do that for mod_perl handlers, mod_perl sets $0 to the 
httpd path during the perl_startup (see mod_perl.c:713). Therefore you 
probably want to write a PerlChildInitHandler that overrides $0.

If you want the same behavior for Registry scripts, which always set $0 
to the location of the currently processed script you have to subclass 
Apache::RegistryNG and override the method set_script_name() which does 
exactly that.

__________________________________________________________________
Stas Bekman            JAm_pH ------> Just Another mod_perl Hacker
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