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From Stas Bekman <s...@stason.org>
Subject Re: END block weird behavior
Date Thu, 02 Dec 2004 15:29:55 GMT
Faisal Nasim wrote:
> At 05:48 AM 12/2/2004, Stas Bekman wrote:
> 
>>Faisal Nasim wrote:
>>
>>>Okay here's a demonstration:
>>>The test script is:
>>>#!/usr/local/bin/perl
>>>use strict;
>>>use vars qw ($mydata);
>>>$mydata = 'woodooeer';
>>>my $data = 'woodoo';
>>>my $data2 = 'dingdong';
>>>print "Content-type: text/plain\n\n";
>>>print scalar localtime () , "\n\n";
>>>print `cat /tmp/modperltest.txt`;
>>>END
>>>{
>>>       open FILE , '>/tmp/modperltest.txt';
>>>       print FILE "DATA: " , scalar localtime , "\n";
>>>       print FILE "$data\n";
>>>       print FILE "$mydata\n";
>>>       print FILE "$data2\n";
>>>       close FILE;
>>>}
>>>
>>>You can see the different behaviors at:
>>>no modperl: http://www.nasim.org/test/short.cgi
>>>modperl: http://www.nasim.org/test/short.pl
>>>Note that the file is printed first and then updated. Hit refresh
>>>to see that modperl misses $mydata.
>>
>>Actually it's very inconsistent. If I hit reload I get the value of $mydata appearing
and disappearing in both scripts.
>>
>>Any chance you could rewrite your code not to use the END block for the desired functionality?
At least until we get some freed resources to work on modperl1 issues again?
> 
> 
> It is not inconsistent. Note that the file is printed first before its rewritten.
> So, when you load the mod_cgi page after mod_perl, you'll still see
> a missing element. Hit refresh and you can see it worked great.

Right I can see that now. I shouldn't have alternating requesting the two. 
Didn't realise the two very connected (the same script)

>  Not
> using END block solved all the problems but if I press STOP while
> a processing is being done (takes 2-3 secs), it doesn't call the cleanup
> routine and that sometimes leaves the file locks open. I was hoping I
> could always perform final cleanup in my END block.

That's easy - use a cleanup handler:
http://perl.apache.org/docs/1.0/guide/porting.html#END_blocks

 > I can take a crack
 > at the source, I've done Apache hacking before.

That would be certainly great. We need more people who can solve core 
problems. There are too few of us trying to handle the ever raising load.

-- 
__________________________________________________________________
Stas Bekman            JAm_pH ------> Just Another mod_perl Hacker
http://stason.org/     mod_perl Guide ---> http://perl.apache.org
mailto:stas@stason.org http://use.perl.org http://apacheweek.com
http://modperlbook.org http://apache.org   http://ticketmaster.com

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