On Wed 19-Dec-2001 at 10:43:34AM -0500, Perrin Harkins wrote: > > ALWAYS reinitialize $Your::Singleton::ETERNAL on each query! > > mod_perl will *NOT* do it for you. > > If you want a per-request global, use $r->pnotes() instead of a standard > perl global. Then mod_perl *WILL* do it for you.
True. But then you are using the Apache object and you're program
doesn't work as a standard CGI anymore :(
> > You might think 'ah yeah but it would be nice if
> > $Your::Singleton::ETERNAL could be persistent across queries...' which
> > is sometimes desirable, but remember that if you have multiple instances
> > of your application running on the same apache,
> > $Your::Singleton::ETERNAL will be common to ALL of them.
>
> It will be common to all requests in that particular process, but not shared
> between multiple Apache processes. If you take requests for different
> applications that need different singletons on the same Apache process, you
> should separate them by namespace so they don't collide.
Yup, that's what I meant. Separating by namespace is not very convenient
though. What I have been doing to get around this is that I wrote a
simple module that can be used as a global scalar and that uses tie to
return appropriate variable (FYI I've attached the module, if that
interests anyone).
Cheers,
--
IT'S TIME FOR A DIFFERENT KIND OF WEB
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MPH.pm
Description: Perl program
