PAN.
>
> No, ModPerl::RegistryLoader comes with mod_perl 2.
>
>> And when I transition to PerlRun and mod_perl, my
>> understanding is that I should preload the application programs into the
>> ModPerl::Registry?
>
> You don't really have to preload anything. It may save you some
> memory, but it's not important at this point. Wait until your code is
> working to worry about things like that.
>
>> If I preload the Perl modules I'm using, do I still need to 'Use' those
>> modules in my application programs?
>
> You don't technically have to, but it's a good practice to do it
> anyway, to make it clear which modules depend on which others and make
> it easier to work with later.
>
> - Perrin
>
>
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On 7/6/07, CraigT <[EMAIL PROTECTED]> wrote:
In this regard though, I would
like to ask what you recommend to pass back several paramters from a sub
The usual way to do it is to accept a list of return values:
my ($foo, $bar) = sub_call($param);
I'd like to focus on this problem here because
T') {
$docroot = $ENV{$key};
}
if ($key eq 'SERVER_NAME') {
$servname = $ENV{$key};
}
}
# Get the paramters from the calling program - shoidls.cgi.
$govlevel = $page->param("str");
$govcat = substr($govlevel,0,1);
$gov = substr($govlevel,1,length($govlevel)-1);
This concludes the code for the 2 programs - m3.cgi and ss.cgi.
Question 3 and 4.
If I preload (compile) my application programs into the Apache registry as I
hope to, when I execute under CGI I'm thinking those copies will be used if
I have the correct handler (like the one below) in my Apache httpd? I
haven't found a package for Apache::RegistryLoader yet and may have to get
it form CPAN. And when I transition to PerlRun and mod_perl, my
understanding is that I should preload the application programs into the
ModPerl::Registry?
PerlModule Apache::Registry
Alias /cgi-bin/ "/usr/www/steepusa/cgi-bin/"
SetHandler perl-script
PerlResponseHandler Apache::Registry
Options +ExecCGI
PerlOptions +ParseHeaders
Question 5.
If I preload the Perl modules I'm using, do I still need to 'Use' those
modules in my application programs?
CraigT
Perrin Harkins wrote:
>
> On 7/6/07, CraigT <[EMAIL PROTECTED]> wrote:
>> Am I passing the paramters in the anchor
>> examples I presented earlier as I should using PerlRun or mod_perl?
>
> I don't think you ever showed us the code. You just showed the code
> where you print the HTML. If you can show us a complete sub and how
> you call it, we can tell you if it looks right.
>
>> Should
>> I be able to see the correct passed parameters when I pull them across to
>> the module invoked by the anchor prior to entering a sub in that module
>> (my
>> $page = new CGI;$params = $page->param("str");)?
>
> Yes, even if y ou have a scoping problem, code that is in the "main"
> part of your script, outside of subs, should be able to see the
> correct values.
>
>> If a subroutine needs many
>> parameters, how would you recommend they be passed?
>
> Use a hash:
>
> foo(x => 1, y => 2);
>
> sub foo {
> my %args = @_;
> print $args{x}, $args{y};
>
>> After simply installing
>> mod_perl, am I using the Apache embedded Perl interpreter or do I have to
>> make the transition to PerlRun or mod_perl for this to occur?
>
> You have to use PerlRun or some other mod_perl handler.
>
> - Perrin
>
>
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On 7/6/07, CraigT <[EMAIL PROTECTED]> wrote:
Am I passing the paramters in the anchor
examples I presented earlier as I should using PerlRun or mod_perl?
I don't think you ever showed us the code. You just showed the code
where you print the HTML. If you can show us a complete sub and how
you
On 7/5/07, CraigT <[EMAIL PROTECTED]> wrote:
Is what I'm hearing you say is that in the PerlRun environment (and I'm
guessing the mod_perl environment too), anything that a subroutine uses
coming from outside that code must be passed as a parameter like
'&sub($paramter)'. Am I correct in this.
/wiki/Closure_%28computer_science%29
> and in Perl
> http://www.perl.com/pub/a/2002/05/29/closure.html
>
> Depending on the other languages you know, you might never have
> encountered a
> closure before since they don't exist in languages like C, C++ or Java.
>
> --
> Michael Peters
> Developer
> Plus Three, LP
>
>
>
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CraigT wrote:
> Perrin,
>
> Is what I'm hearing you say is that in the PerlRun environment (and I'm
> guessing the mod_perl environment too), anything that a subroutine uses
> coming from outside that code must be passed as a parameter like
> '&sub($paramter)'. Am I correct in this.
Yes and
essage that you get when you have closure problem. It means
> the variable will be cached the first time through and never change
> again.
>
> All that you need to do to fix this problem is to pass all of the
> variables that your sub needs to the sub when you call it. If you
&
On 7/4/07, CraigT <[EMAIL PROTECTED]> wrote:
In each of the modules, I bring 'str' across with something like my $somevar
= $page->param("str") assigning the paramter values to a declared Perl
variable.
Okay, but do you pass $page explicitly to the sub, or do you just
define it outside the sub
ions on how I might
>> proceed
>> here. The Apache 'ab' modules tells me I can improve the # of request
>> per
>> second that my server can server by a facor of 3 and I would like to do
>> it
>> if I can.
>>
>> CraigT
>>
>>
>>
>>
>>
>> Perrin Harkins wrote:
>>
>>> [Please keep it on the list]
>>>
>>> On 7/3/07, Craig Tussey <[EMAIL PROTECTED]> wrote:
>>>
>>>> Thanks again for responding. Here is the link to my
>>>> scratchpad. Keep in mind that I was making entries
>>>> to the scratchpad in response to Clintons questions.
>>>>
>>>> http://www.perlmonks.org/?viewmode=public;node_id=624649
>>>>
>>> Okay, you really aren't showing much code here. From what you did
>>> show, I'm guessing you're doing this:
>>>
>>> my $govlevel = $page->param("str");
>>> print_html();
>>>
>>> sub print_html {
>>> print "blah blah $govlevel blah blah";
>>> }
>>>
>>> That doesn't work because the sub becomes a closure and never notices
>>> when you create new versions of $govlevel. The fix is to pass
>>> $govlevel to the sub as a parameter.
>>>
>>> - Perrin
>>>
>>>
>>>
>>
>>
>
>
>
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Have a look at this:
http://www.perl.com/pub/a/2002/05/07/mod_perl.html
Perrin is probably right that it's a closure issue. Take a good look at
your code.
Incidentally, I've found it useful to do a Google search on
incomprehensible error messages ..:)
d
CraigT wrote:
Perrin,
I'm not su
;
> my $govlevel = $page->param("str");
> print_html();
>
> sub print_html {
> print "blah blah $govlevel blah blah";
> }
>
> That doesn't work because the sub becomes a closure and never notices
> when you create new versions of $govlevel. The fix is to pass
> $govlevel to the sub as a parameter.
>
> - Perrin
>
>
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[Please keep it on the list]
On 7/3/07, Craig Tussey <[EMAIL PROTECTED]> wrote:
Thanks again for responding. Here is the link to my
scratchpad. Keep in mind that I was making entries
to the scratchpad in response to Clintons questions.
http://www.perlmonks.org/?viewmode=public;node_id=624649
On 7/3/07, CraigT <[EMAIL PROTECTED]> wrote:
I put a lot of stuff in my (cliff) scratchpad like the ENV values, the
relevant Apache httpd entries, a dump, the Apache error log, and code
examples. Would it be possible for you to review the stuff I put there?
Maybe later. Do you have a link fo
anging the data the paramters are composed from between the 2
>> executions, the paramters do not change on the second execution under
>> PerlRun but do under CGI.
>
> It sounds like your code has a scoping bug, probably an unintentional
> closure. Can you show us the cod
Hi,
There's no need to post your question four times.
I'm trying to bring my application up using ModPerl::PerlRun. I have
anchors at places in my code like
I can't tell what you're doing from this description. Can you show us
some of your code?
Additionally, if I execute the same anchor
Hello,
I'm trying to bring my application up using ModPerl::PerlRun. I have
anchors at places in my code like http://www.nabble.com/passing-CGI-paramters-tf4008753.html#a11384626
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