Re^3: Threads and Shared Variables

and as far as I can tell this should work.

It doesn't. And it won't whether you understand it or not.

In Perl: DO NOT DEFINE SUBROUTINES WITHIN NESTED SCOPES!

Weird bugs happen whether threads are involved or not. And when threads are involved, they can be even weirder. So don't do it.

I could probably eventually explain why it doesn't work, but then I would have to think about it and probably do some experiments. But as there is no good reason to declare subs in async blocks; and many good reasons not to, I cannot be bothered to work out what does or does not work.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

Comment on Re^3: Threads and Shared Variables

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Re^4: Threads and Shared Variables by hermes1908 (Novice) on Jul 04, 2013 at 22:18 UTC
If it's just a quirk then I can accept that, I was just trying to establish whether or not I missed something in the documentation (I can't find anything about not nesting subroutines). My reasoning behind doing this was not to pollute the package namespace. I am used to being able to do this in other languages (javascript). Thanks for the advice, Hermes	[reply]
Re^5: Threads and Shared Variables by BrowserUk (Patriarch) on Jul 04, 2013 at 22:35 UTC
(I can't find anything about not nesting subroutines) See http://perldoc.perl.org/perlref.html#Function-Templates and read the three paragraphs where the first starts "Access to lexicals that change over time...". With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply]
Re^5: Threads and Shared Variables by Arunbear (Prior) on Jul 05, 2013 at 11:25 UTC
Apart from the experimental lexical subs introduced with 5.18, any named function created with sub (even those that are nested in an inner scope) become part of a package's namespace, so you can't avoid namesapce pollution in this way.	[reply]