comp.lang.ruby

Brian Candler

5/16/2009 5:23:00 PM

Yukihiro Matsumoto wrote:
> Hi,
>
> In message "Re: $0 is truncated"
> on Sat, 16 May 2009 22:03:36 +0900, Brian Candler
> <b.candler@pobox.com> writes:
>
> |If I assign a new value to $0, I find it is truncated.
>
> Platform info please. On some platforms, changing program name (as
> seen from ps for example) is limited to the original size. We cannot
> relax OS limitation.

This is under Linux (Ubuntu Hardy).

Yes, I'm aware that maybe setproctitle has limits, but it's also useful
to set $0 to a longer Ruby string (even if that's not fully reflecting
in the proctitle), because another piece of Ruby code in the same
process may be testing the value of $0.

In ruby 1.8.6, I can use $0.replace("any long string") which works just
fine for setting $0 - presumably not setting the proctitle of course.
But this stopped working in 1.8.7/1.9 because $0 is frozen.

Regards,

Brian.
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