I think you are confusing @INC and %INC. You should probably read up on the difference between the two. The mod_perl guide provides a lot of background on this issue: http://perl.apache.org/docs/general/perl_reference/perl_reference.html#use__ __require____do_____INC_and__INC_Explained
In any case, @INC and %INC are only used to load modules. You can't have multiple versions of the same package loaded at the same time in a single interpreter (even outside of mod_perl) since the symbols in the symbol table can only point to one thing at a time. Remember that there's only one Perl interpreter per child process (in Apache/mod_perl 1.x). If you try to load the same package again via `require' you'll overwrite the old symbols and, if you have warnings on, generate a bunch of redefine warnings. As you discovered, Apache::PerlVINC is just a work-around that reloads every module (at least those that you say matter) on every request. That's the best you can do unless Perl starts supporting some method of side-by-side versioning of modules. -- Kyle Oppenheim Tellme Networks, Inc. http://www.tellme.com ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, December 10, 2002 5:29 PM Subject: Per Vhost @INC > This has come up a few times but I still do not fully > understand how it works. Here is my situation. > > I have a body of software that runs in a specific > namespace with about 10 libraries. (TourEngine::**). I > have many versions of this software and will need the > ability to, on the same server, run multiple instances of > this software with different versions for a variety of > reasons. > > Using a PerlRequire in the vhost seems to add the @INC for > the entire vhost population on the server, not just my > vhost. This results in 'first match wins' behavior since I > would now have an @INC entry for each TourEngine::** > directory. I tried Apache::PerlVINC but it wants to reload > each module on each request and it seems to want to 'own' > a location space. My modules actually get required as part > of my HTML::Mason code, they do not handle the entire > Location. > > I tried the PerlFixupHandler and a use libs declaration > but that just gave me error messages like 'Undefined > subroutine &lib(use::handler called.' which makes me think > I have the syntax wrong there and I can not find another > syntax example. > > My preference is not to have to set my @INC in every > component/lib I call but to have it set in the config > globally for that Vhost. > > So, does anyone have any ideas on how I can load a per > vhost @INC that doesn't appear to other Vhosts? I want my > TourEngine::** namespace to be a unique @INC per vhost. > > Thanks > John- >
