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Home: Perl Programming Help: mod_perl: How to convert your scripts to mod_perl

yapp User Mar 1, 2002, 7:16 AM Post #1 of 13 (20973 views) How to convert your scripts to mod_perl Can't Post Well? Yet Another Perl Programmer _________________________________ ~~> [url=http://www.codingdomain.com]www.codingdomain.com <~~ More then 3500 X-Forum [url=http://www.codingdomain.com/cgi-perl/downloads/x-forum]Downloads!

Paul Enthusiast Mar 1, 2002, 8:26 AM Post #2 of 13 (20965 views) Re: [yapp] How to convert your scripts to mod_perl [In reply to] Can't Post http://perl.apache.org/guide/ Always use strict and warnings :)

mire Novice Mar 1, 2002, 7:26 PM Post #3 of 13 (20962 views) Re: [RedRum] How to convert your scripts to mod_perl [In reply to] Can't Post man cgi_to_mod_perl man Apache::Registry man Apache::PerlRun _______________________________________________ Best regards, Miroslav Madzarevic, Senior Perl Programmer perl@modperldev.com Mod Perl Development  - http://www.modperldev.com Telephone: +381 64 1193 501 ICQ: 15880893 jamph

yapp User Mar 3, 2002, 11:59 AM Post #4 of 13 (20955 views) Re: [RedRum] How to convert your scripts to mod_perl [In reply to] Can't Post Thanks, I'll read through it. Are there some important notes you can reveal already now? btw, I haven't got the cgi_to_mod_perl manpage! Where can I get it? Yet Another Perl Programmer _________________________________ ~~> [url=http://www.codingdomain.com]www.codingdomain.com <~~ More then 3500 X-Forum [url=http://www.codingdomain.com/cgi-perl/downloads/x-forum]Downloads!

Cure User Jun 8, 2002, 9:52 AM Post #5 of 13 (20867 views) Re: [yapp] How to convert your scripts to mod_perl [In reply to] Can't Post You want to use the Apache::Registry module.... http://perl.apache.org/dist/cgi_to_mod_perl.html Cure

yapp User Jun 9, 2002, 3:23 AM Post #6 of 13 (20864 views) Re: [Cure] How to convert your scripts to mod_perl [In reply to] Can't Post Am I right here?? - Can't read from STDIN??? - Can't print to STDOUT?? - Use a special CGI::Switch sometimes? Oh boy! It's even thougher then I thought... Well, my forum is being converted into OO (for version 2) right now, so that will be easier to convert.. But still, I'm confused.. I never thought it would be so difficult... Because if I ever get that mod_perl in my program, it would be a very cool. In the next version of my forum, I eliminated almost all standard modules.. Especially CGI.pm ... I'm frustrated of what that module loads... Defaultly it even loads 'overload.pm', which is only used for multipart-data (file uploads) etc etc.. I think there is too much overhead. (also elimitated vars.pm... that's indirectly loading a lot too) The only think I have lefty is strict now. Fortunately, I have been using strict and -w from the beginning... That's the biggest culture shock for mod_perl newbies I guess... Yet Another Perl Programmer _________________________________ ~~> [url=http://www.codingdomain.com]www.codingdomain.com <~~ More then 3500 X-Forum [url=http://www.codingdomain.com/cgi-perl/downloads/x-forum]Downloads!

Revelation Novice Jun 11, 2002, 10:09 AM Post #7 of 13 (20860 views) Re: [yapp] How to convert your scripts to mod_perl [In reply to] Can't Post Some other things: No __DATA__ Flags at the end of your script, or __END__ flags, either I believe. Mod_Perl is a stricter "language" than perl, which involves making sure we don't have memory leaks, etc. You'll get them even if you are strict and warnings compliant. Modules are *good*, modular coding attests to your abilities, in now way does it detract from them. A well defined object orriented structure in your modules will make your script clean and simple, it will also make modification heaps easier. If you're not using CGI;, then I hope you're using the appropriate Apache modules. Still on the subject of modules, I'd recomend reading: http://perl.apache.org/tuning/#BASIC_CONFIGURATION Loading modules onto the http processes will make your scripts damn quick. http://perl.apache.org/dist/cgi_to_mod_perl.html has some other stuff.

yapp User Jun 12, 2002, 2:31 PM Post #8 of 13 (20855 views) Re: [Revelation] How to convert your scripts to mod_perl [In reply to] Can't Post Oh... the __END__ tokens are only used in the modules, to stop perl reading through the included pod documentation. Also, I need to read the docs carefully about some "re-initializing" subroutines. Some variabels need to be reset after running. Also I wonder: My next version reads in a sortof ini-files containing the settings. That's because I think it's easier to edit, and doesn't make end-users cause Perl errors. The settings read are filled into a hash, so they can be re-used by all other modules easier. I wonder, when should I empty that hash? Every time? When I detect the file has changed? (and how do I check that?) This saves memory, but generates more IO. Yet Another Perl Programmer _________________________________ ~~> [url=http://www.codingdomain.com]www.codingdomain.com <~~ More then 3500 X-Forum [url=http://www.codingdomain.com/cgi-perl/downloads/x-forum]Downloads!

Paul Enthusiast Jul 15, 2002, 5:13 PM Post #9 of 13 (20720 views) Re: [yapp] How to convert your scripts to mod_perl [In reply to] Can't Post >> Oh... the __END__ tokens are only used in the modules, to stop perl reading through the included pod documentation. << Using __END__ with mod_perl is ok. >> Also, I need to read the docs carefully about some "re-initializing" subroutines. Some variabels need to be reset after running. << Use END and DESTROY blocks in your modules to reset globals and try to clear out anything that may not be reset under mod_perl...you can add this code into your cgi script which will get executed on every request...eg... Module->reset_env;

Revelation Novice Jul 15, 2002, 7:48 PM Post #10 of 13 (20718 views) Re: [RedRum] How to convert your scripts to mod_perl [In reply to] Can't Post Paul, I was under the impression that __END__ tokens were not alright in mod_perl *scripts*, but were alright in handlers.... As you know scripts are converted into temp handlers some how (I'm not advanced enough to understand the process...) The script is then executed, but will get screwed up as __END__ will stop the last } to close the sub handler.... It's documented as well... so I'm pretty sure it's true.... ( Check my OO thread in intermediate...)

Paul Enthusiast Jul 16, 2002, 2:43 AM Post #11 of 13 (20715 views) Re: [Revelation] How to convert your scripts to mod_perl [In reply to] Can't Post Sorry maybe I wasn't clear...it is ok to use them in modules that get loaded into mod_perl, otherwise as you say, __END__ will be put before } and you'll get syntax errors.

thebitch User Aug 9, 2002, 7:09 AM Post #12 of 13 (20628 views) Re: [yapp] How to convert your scripts to mod_perl [In reply to] Can't Post I also suggest taking a look at mod_perl-2 ModPerl::Registry instead of Apache::Registry and ModPerl::PerlRun

Cure User Nov 29, 2002, 8:58 AM Post #13 of 13 (20036 views) Re: [Revelation] How to convert your scripts to mod_perl [In reply to] Can't Post This comes straight from the take23.org site -> Simply put, mod_perl is a software package that embeds a Perl interpreter into the Apache HTTP server, giving the developer access to the Apache module API from within Perl. This allows you to build Apache module server extentions in Perl, rather than in C. Don't worry if this definition seems a bit like techo-babble at the moment. You will soon see what this description means, and how mod_perl can help you to create advanced, high-volume Web applications quickly and easily. About the __EXIT__ and __DATA__ tokens --> Apache::Registry scripts cannot contain __END__ or __DATA__ tokens. Why? Because Apache::Registry scripts are being wrapped into a subroutine called handler http://perl.apache.org/docs/1.0/guide/porting.html#__END___and___DATA___tokens Cure

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