On Wed, 30 Aug 2000, mgraham wrote:
>
>
> I don't have specific help for your problem, but I have noticed that
> package-scoped lexicals can be somewhat unpredictable under mod_perl.
>
> 1) If at startup time (pre-fork) you use a function within a package
> to set a lexical variable that is scoped to that package, that
> variable may or may not remain visible to other functions within the
> package, depending on how the module was loaded:
> a) if the module was loaded via PerlModule in httpd.conf, the
> value will remain visible.
> b) if the module was loaded via "use Module" in starup.pl, the
> value will disappear.
>
> 2) Constant assignments to package-scoped lexicals can disappear when
> the module is reloaded (e.g. via Apache::Reload). For instance:
>
> my $CONSTANT_NUMBER = 42;
>
> If the module is reloaded, this value can disappear!
>
> Personally, I've given up on package-scoped lexicals entirely, and
> moved everything into "use vars". It's a pain, because you lose the
> encapsulation and you have to declare and assign the variables
> separately. But it generally seems much more robust and predictable.
This is a real worry for anyone using the Tie::SecureHash sort of thing to
hide access to private variables.
--
<Matt/>
Fastnet Software Ltd. High Performance Web Specialists
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