[Zope-PTK] Re: [PTK(94)[1] request] Changing document views hard

[Martijn Pieters]

On Sun, Jun 11, 2000 at 03:28:01PM -0400, Tres Seaver wrote:
> > Either, the code unregistering should expect an exception, or the
> > unregistering code should catch it and not let it pass on.
> 
> Good point!  I don't mind having unregisterObserver() throw, but I
> don't want to set up a race condition in the bozo-removal.  How about
> this patch:
> 
>     for bozo in bozos:
> -       self._observers.remove( bozo )
> +       try: # avoid race condition if unregister() called before now
> +           self._observers.remove( bozo )
> +       except:
> +           pass

Yup, that's what I had in mind. r=mj, as the Moz crows would say.

-- 
Martijn Pieters
| Software Engineer    mailto:mj@digicool.com
| Digital Creations  http://www.digicool.com/
| Creators of Zope       http://www.zope.org/
|   The Open Source Web Application Server
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