Module caching

[Scott <sc...@thereisnoarizona.org>]

Hello all,
I am working on a large modperl app, and one of the features of this is a
plugin system that allows others to write and install modules. Everything is
good as far as this goes, but the problem is updateing/deleting modules. It
seems as though the code is cached until an apache restart (i.e code changes
don't take effect, version numbers don't change). Is there a way to flush
the INC hash of all the children programmatically, without a restart? I have
looked at Apache::Reload and Apache::StatINC and tried to replicate the
code, but it doesn't seem to be working.

Thanks,
Scott

Re: Module caching

[Perrin Harkins <pe...@elem.com>]

On Fri, 2003-08-01 at 13:42, Scott wrote:
> I have
> looked at Apache::Reload and Apache::StatINC

And what was wrong with them?  You should know that there is no perfect
way to reload a Perl module.  It just isn't a feature of the language. 
Those two modules come as close as you can get without actually starting
a new interpreter, but it is still possible for some code (especially
code using closures) to interact badly with them.

- Perrin

Re: Module caching

[Marcin Kasperski <Ma...@acn.waw.pl>]

"Scott" <sc...@thereisnoarizona.org> writes:

> Hello all,
> I am working on a large modperl app, and one of the features of this is a
> plugin system that allows others to write and install modules. Everything is
> good as far as this goes, but the problem is updateing/deleting modules. It
> seems as though the code is cached until an apache restart (i.e code changes
> don't take effect, version numbers don't change). Is there a way to flush
> the INC hash of all the children programmatically, without a restart? I have
> looked at Apache::Reload and Apache::StatINC and tried to replicate the
> code, but it doesn't seem to be working.

The best thing I happened to meet here:
- apache compiled with mod_perl as DSO (for instance debian linux version)
- graceful restart which is invisible for the clients but reloads perl
  interpreter when mod_perl is DSO