Re: END subroutine in Apache::Registry
Hi Jim, The documentation is neither unclear nor confusing. However, the implication was not obvious (well... not obvious enough) when I first read this section three years ago. If you're sincere about wanting suggestions, here's mine: of course :) In addition to understanding the behavior of END blocks in Apache::Registry scripts, a script writer must realize that any module invoked via use or include may work differently than its designer intended, if that module contains END blocks. great, will add that. Though I've noticed that it works this way only if you 'use'. if you 'require' it's being ignored completely (not even run on the shutdown), is it just me or do you see the same? seems like a bug to me, unless I'm missing something. Thanks Jim! -Jim On Fri, 12 Jul 2002, Stas Bekman wrote: Jim Schueler wrote: I just read the fine print: Apache::Registry runs BEGIN subroutines just once per child process, but END routines run every time a script is run. The implication is that an otherwise robust module may behave unexpectedly when it's imported by an Apache::Registry script. Doesn't this cause problems for mod_perl users? There is no mention of this issue in either mod_perl_to_cgi or mod_perl_traps. Admittedly, most of the code in my END subroutines should probably be refactored into OO DESTROY subroutines anyways. But if not burned, I've been significantly scalded by this belated realization. I don't see anything on CPAN that can be easily applied to all of the modules that written. I'll happily fill that void, but I must be overlooking the obvious solution. Can anyone provide any insights? Please read: http://perl.apache.org/release/docs/1.0/guide/porting.html#END_blocks The special case is for registry scripts that include END blocks. If the the explanation at the above URL is unclear/confusing, please suggest how to improve it. __ Stas BekmanJAm_pH -- Just Another mod_perl Hacker http://stason.org/ mod_perl Guide --- http://perl.apache.org mailto:[EMAIL PROTECTED] http://use.perl.org http://apacheweek.com http://modperlbook.org http://apache.org http://ticketmaster.com -- __ Stas BekmanJAm_pH -- Just Another mod_perl Hacker http://stason.org/ mod_perl Guide --- http://perl.apache.org mailto:[EMAIL PROTECTED] http://use.perl.org http://apacheweek.com http://modperlbook.org http://apache.org http://ticketmaster.com
Re: END subroutine in Apache::Registry
Hi Stas. The documentation is neither unclear nor confusing. However, the implication was not obvious (well... not obvious enough) when I first read this section three years ago. If you're sincere about wanting suggestions, here's mine: In addition to understanding the behavior of END blocks in Apache::Registry scripts, a script writer must realize that any module invoked via use or include may work differently than its designer intended, if that module contains END blocks. -Jim On Fri, 12 Jul 2002, Stas Bekman wrote: Jim Schueler wrote: I just read the fine print: Apache::Registry runs BEGIN subroutines just once per child process, but END routines run every time a script is run. The implication is that an otherwise robust module may behave unexpectedly when it's imported by an Apache::Registry script. Doesn't this cause problems for mod_perl users? There is no mention of this issue in either mod_perl_to_cgi or mod_perl_traps. Admittedly, most of the code in my END subroutines should probably be refactored into OO DESTROY subroutines anyways. But if not burned, I've been significantly scalded by this belated realization. I don't see anything on CPAN that can be easily applied to all of the modules that written. I'll happily fill that void, but I must be overlooking the obvious solution. Can anyone provide any insights? Please read: http://perl.apache.org/release/docs/1.0/guide/porting.html#END_blocks The special case is for registry scripts that include END blocks. If the the explanation at the above URL is unclear/confusing, please suggest how to improve it. __ Stas BekmanJAm_pH -- Just Another mod_perl Hacker http://stason.org/ mod_perl Guide --- http://perl.apache.org mailto:[EMAIL PROTECTED] http://use.perl.org http://apacheweek.com http://modperlbook.org http://apache.org http://ticketmaster.com
Re: END subroutine in Apache::Registry
Hi Jim, Stas, On Fri, 12 Jul 2002, Stas Bekman wrote: Jim Schueler wrote: I just read the fine print: :) Good man. Apache::Registry runs BEGIN subroutines just once per child process, but END routines run every time a script is run. The implication is that an otherwise robust module may behave unexpectedly when it's imported by an Apache::Registry script. Yup. Doesn't this cause problems for mod_perl users? Only at first. :) There is no mention of this issue in either mod_perl_to_cgi or mod_perl_traps. The Apache::Registry documentation is probably the more appropriate place for this, since Apache::Registry is an acknowledged hack anyway and you should really be aiming to use handlers... Please read: http://perl.apache.org/release/docs/1.0/guide/porting.html#END_blocks The special case is for registry scripts that include END blocks. If the the explanation at the above URL is unclear/confusing, please suggest how to improve it. It's pretty clear, and the bit about BEGIN blocks is right next to it, but it might be worth adding a note about the imbalance between BEGIN blocks and END blocks under Apache::Registry to cover this issue. 73, Ged.
Re: END subroutine in Apache::Registry
Please read: http://perl.apache.org/release/docs/1.0/guide/porting.html#END_blocks The special case is for registry scripts that include END blocks. If the the explanation at the above URL is unclear/confusing, please suggest how to improve it. It's pretty clear, and the bit about BEGIN blocks is right next to it, but it might be worth adding a note about the imbalance between BEGIN blocks and END blocks under Apache::Registry to cover this issue. I don't think there is really a need, but if we do so, the imbalance is between END and all *other* special blocks, like INIT, CHECK, BEGIN etc. So I believe that what is says now is just fine. The registry END block is the black sheep... __ Stas BekmanJAm_pH -- Just Another mod_perl Hacker http://stason.org/ mod_perl Guide --- http://perl.apache.org mailto:[EMAIL PROTECTED] http://use.perl.org http://apacheweek.com http://modperlbook.org http://apache.org http://ticketmaster.com
END subroutine in Apache::Registry
I just read the fine print: Apache::Registry runs BEGIN subroutines just once per child process, but END routines run every time a script is run. The implication is that an otherwise robust module may behave unexpectedly when it's imported by an Apache::Registry script. Doesn't this cause problems for mod_perl users? There is no mention of this issue in either mod_perl_to_cgi or mod_perl_traps. Admittedly, most of the code in my END subroutines should probably be refactored into OO DESTROY subroutines anyways. But if not burned, I've been significantly scalded by this belated realization. I don't see anything on CPAN that can be easily applied to all of the modules that written. I'll happily fill that void, but I must be overlooking the obvious solution. Can anyone provide any insights? Jim Schueler Motor City Interactive
