Can't instantiate Thread::Pool

alain_desilets has asked for the wisdom of the Perl Monks concerning the following question:

I am trying to use Thread::Pool, and I am not even able to instantiate it! Here's the code:


use Thread::Pool;
my $pool = Thread::Pool->new(Min => 5, Max => 10);
[download]

which is essentially the first two lines of the Synopsis for the module in the doc:

http://search.cpan.org/~micb/ThreadPool-0.1/Pool.pm

When I run the code, I get error message:

Can't bless non-reference value at C:/Perl/site/lib/Thread/Pool.pm (loaded on demand from offset 2009 for 3872 bytes) line 90.

What am I doing wrong?

Thx

Comment on Can't instantiate Thread::Pool Download Code

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Re: Can't instantiate Thread::Pool by Corion (Patriarch) on Sep 20, 2011 at 15:01 UTC
The two lines you quoted are not "essentially the first two lines" of the synopsis. Looking at Thread::Pool, the first three lines are: `use Thread::Pool; $pool = Thread::Pool->new( {` [download] So, likely `->new()` takes a hashref instead of a list as arguments.	[reply] [d/l] [select]
Re^2: Can't instantiate Thread::Pool by alain_desilets (Beadle) on Sep 20, 2011 at 15:22 UTC
Oh, I see. I was looking at the documentation for version 0.1: http://search.cpan.org/~micb/ThreadPool-0.1/Pool.pm#SYNOPSIS which was the first hit that came on Google. I now see that I should be using the doc for version 0.3: http://search.cpan.org/~elizabeth/Thread-Pool-0.33/lib/Thread/Pool.pm#SYNOPSIS	[reply]
Re^3: Can't instantiate Thread::Pool by FunkyMonk (Bishop) on Sep 21, 2011 at 20:16 UTC
That seems to be a bloody good reason to not use Google to look-up perl documentation. Use perldoc.perl.org for core perl search.cpan.org for CPAN modules local versions of the above via perldoc both those sites allow you to choose which version of a module to view. perldoc shows you the docs of whatever version you've got installed. Better still (IMO), why not use an editor that supports perl documentation look-ups? There's plenty of them around. Perl: perlintro perlretut perldoc Basic debugging checklist Yes, even you can use CPAN PerlMonks: How do I post a question effectively? Markup in the Monastery How do I post a question effectively? I know what I mean. Why don't you? General: How To Ask Questions The Smart Way What every computer scientist should know about floating-point arithmetic To Be Continued...	[reply]