You are correct. However, I believe the best practice is to local-ize
the globals at the earliest opportunity (syshandler / lowest
autohandler) so that nothing escapes to survive between calls, as
opposed to clearing the globals at the beginning of the call. This will
get you what you want without the worries that you (rightly) express.
HTH,
RJ Herrick
John (Versimedia Admin) wrote:
Im am considering using the MasonAllowGlobals option to avoid having
to pass certain hashes to every function (the data is required all
over the place).
I have noticed that, similar to programming directly in mod_perl, the
global data survives the apache fork -- so if I set this in Apache
httpd.conf
PerlSetVar MasonAllowGlobals "%siteData %siteConfig %privateData"
and then set this once:
$privateData{test} = 1;
That on subsequent reloads of that process, $privateData{test} can pop
back up (if it hits the same forked process).
My question is -- is it safe to reset the global at the top of the
autohandler? such as:
<%init>
%privateData = ();
</%init>
-- this variable would only be alive to one fork at a time, right?
I suppose the thing I would have to be careful of is A) that I do this
and B) make sure that any code that does not hit he autohandler does
not use this data?
Thoughts?
Thanks
-John
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