Hi Michael,
> Thanks for the email. I'm actually using @param to return
> data (as well as the HTML) to the epl script which is calling
> another one via Execute. Perhaps there's a better way.
I think you may just be missing one piece of the puzzle: using
references with the param argument to the Execute function. To slightly
rewrite an example posted previously:
use Embperl;
use Data::Dumper;
my $data = {};
my $output1;
my $input = '[- $param[0]->{hello} = 42; -]';
Embperl::Execute({ inputfile => "blah",
input => \$input,
output => \$output1,
param => [ $data ],
});
print "Execute of file 1, data is currently set to:\n" . Dumper($data);
my $output2;
my $input2 = 'Hello! I was executed with the following arguments: [+ do
{ use Data::Dumper; Dumper(\@param); } +]';
Embperl::Execute({ inputfile => "blah",
input => \$input2,
output => \$output2,
param => [ $data ],
});
print "Execute of file 2, data is currently set to:\n" . Dumper($data);
print "Output of Execute() call:
$output2
";
This yields:
Execute of file 1, data is currently set to:
$VAR1 = {
'hello' => 42
};
Execute of file 2, data is currently set to:
$VAR1 = {
'hello' => 42
};
Output of Execute() call:
Hello! I was executed with the following arguments: $VAR1 = [
{
'hello' => 42
}
];
> On Fri, Jul 23, 2010 at 4:38 AM, Ed Grimm
> <ed_grimm@raytheon.com> wrote:
>
>
> If your Embperl pages are calling regular perl module
> code that uses @param, couldn't you just pass it from your
> Embperl page as a parameter, rather than using it as a global?
>
> Alternatively, if you are talking about code within an
> Embperl page, how do you process those without going through
> Execute? Note that the standard apache handler calls
> Execute, last I checked. I seem to recall there's a few
> other methods to run Embperl pages - but ultimately, they all
> call Execute. Disclaimer: I haven't looked in a while, and
> it's late, and I'm tired.
>
> --
> Ed Grimm
> Identity Services
>
>
>
> From: Michael Smith <smithm@gmail.com>
> To: Gerald Richter - ECOS <gerald.richter@ecos.de>
> Cc: embperl@perl.apache.org, Michael Stevens
> <michael.stevens@dianomi.com>,
> cabell.demarcellus@dianomi.com, Michael Smith
> <michael.smith@dianomi.com>
> Date: 07/22/2010 06:25 PM
> Subject: Re: @param seems to be shared between Execute calls
>
> ________________________________
>
>
>
>
> Thanks Gerald,
>
> That's good to know for the future. Is there a way to
> know if the code has been called through Execute? I am
> actually using the same code both directly and via Execute.
>
> Michael
>
> On Wed, Jul 21, 2010 at 10:19 AM, Gerald Richter - ECOS
> <gerald.richter@ecos.de <mailto:gerald.richter@ecos.de> > wrote:
> Hi Michael,
>
>
>
> @param is only intented to be used to pass parameters
> to Execute. Setting it directly might work or might not...
>
>
>
> If you want to share data inside a request use
>
>
>
> $epreq -> {test} = 1 ;
>
>
>
> The hash of $epreq is not used by Embperl itself, so
> you are free to use it and it exists exactly for the live
> time of one Apache request
>
>
>
> Gerald
>
>
>
>
>
>
>
> From: Michael Smith [mailto:smithm@gmail.com
> <mailto:smithm@gmail.com> ]
> Sent: Wednesday, July 21, 2010 11:05 AM
>
>
> To: embperl@perl.apache.org <mailto:embperl@perl.apache.org>
> Cc: Michael Stevens; cabell.demarcellus@dianomi.com
> <mailto:cabell.demarcellus@dianomi.com> ; Michael Smith
> Subject: Re: @param seems to be shared between Execute calls
>
>
>
> My problem is slightly different - though possibly a
> manifestation of the same thing. I find that param isn't
> cleaned up between requests.
>
>
>
> I have two epl files:
>
>
>
> set.epl:
>
> [- $param[0]->{'test'} = 1 -]
>
>
>
> get.epl
>
> [+ Dumper(@param) +]
>
>
>
> I find that the data from set.epl turns up when I make
> a subsequent request for get.epl (in practice it's a bit more
> random than that if one is running multiple processes, so I
> make a few requests for set.epl and then a few for get.epl)
>
>
>
> This only seems to be relevant if I reference param in
> the epl file I am calling directly. If I reference it in epl
> files which are loaded in by Execute, then they do appear to
> get cleaned up.
>
>
>
> Michael
>
>
>
>
>
> On Tue, Jul 20, 2010 at 10:20 PM, Ed Grimm
> <ed_grimm@raytheon.com <mailto:ed_grimm@raytheon.com> > wrote:
>
> Note that, under Apache, the cleanup code happens at
> the end of each request - each of which could have dozens of
> Execute calls, between which it is very definitely NOT called.
>
> I have not used Embperl much from within server
> scripts, but in my limited use there, I've never seen the
> cleanup code fire. I suspect each script is considered 'a
> request' for the purposes of the cleanup code (well, as far
> as docs are concerned. I don't know if the code actually
> fires on END.)
>
> --
> Ed Grimm
> Identity Services
>
>
>
>
> From: Michael Stevens <michael.stevens@dianomi.com
> <mailto:michael.stevens@dianomi.com> >
> To: embperl@perl.apache.org <mailto:embperl@perl.apache.org>
> Cc: Michael Smith <michael.smith@dianomi.com
> <mailto:michael.smith@dianomi.com> >,
> cabell.demarcellus@dianomi.com
> <mailto:cabell.demarcellus@dianomi.com>
> Date: 07/20/2010 10:12 AM
> Subject: @param seems to be shared between Execute calls
>
>
>
>
>
> ________________________________
>
>
>
>
>
>
> Hi.
>
> We're seeing an odd bug where @param seems to be shared
> between Execute
> calls in the same process. The following code is a test
> case for this:
>
> #!/usr/bin/perl -w
>
> use strict;
> use Embperl;
>
> my $output1;
>
> my $input = '[- $param[0]->{hello} = 42; -]';
>
> Embperl::Execute({
> inputfile => "blah",
> input => \$input,
> output => \$output1,
> });
>
> my $output2;
> my $input2 = '[- use Data::Dumper; print Dumper(\@param); -]';
>
> Embperl::Execute({
> inputfile => "blah",
> input => \$input2,
> output => \$output2
> });
>
> Which on my machine outputs:
>
> $VAR1 = [
> {
> 'hello' => 42
> }
> ];
>
> Surely this shouldn't happen?
>
> --
> Michael Stevens
> Dianomi Ltd
> 18 Buckingham Gate
> London SW1E 6LB
>
> Tel: 020 7802 5530
> Fax: 020 7630 7356
> www.dianomi.com <http://www.dianomi.com/>
>
> The information in this message and any attachment is
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> Dianomi Ltd, Registered Office: One America Square,
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