ForeignObj Finalizer in Hugs

[Sigbjorn Finne]

"KAKIHARA Norihiro" <YIU04646@nifty.com> writes:
> 
  ...
> 
> But I found that my runhugs seemed to ignore finalizer...
> 
> -------------------------------
....example code elided...
> -------------------------------
> 
> Hugs prints:
>     obj is born.
>     obj is alive.
>     obj dies.
> 
> runhugs prints:
>     obj is born.
>     obj is alive.
> 
> 
> How does yours work?
> 

Hi,

you've found another bug / lack of a feature. The runhugs wrapper to
the Hugs98 evaluator doesn't clean up after itself when finished &
performs a final GC, so stuff like ForeignObjs just die without being
finalized.

I've checked in a change that forces a final GC, which should eliminate
the difference in behaviour you're seeing between 'hugs' and 'runhugs'.

Thanks for reporting the problem.

--sigbjorn

If anyone feels that requiring a GC to be run at the end will be too much
of a hit perf-wise, let me know & I'll provide an option for turning this
bit on/off.