Re: calling $poe_kernel more than once

Matt Cashner <[email protected]>
Newsgroups gmane.comp.lang.perl.poe
Message-ID <[email protected]>
I just took a brief diving trip through the source. Looks like that  
the various kernel bits check to see if $poe_kernel is live just to  
avoid setup costs. Even if there is a live kernel, it will attempt to  
launch into another core loop.  I'm not sure a space-time continuum  
breach would occur but you do run the risk of having the Stay-Puft  
marshmallow man trash your city.

There are two paths in this forest. First, the kernel can be patched  
to avoid that kind of multiple spin up. Personally, I find that  
artificially limiting. I'm not sure why one would want to do any of  
this but I've learned over the years that the POE community comes up  
with strange ways to use pretty much every bug or odd side effect  
that's ever been found in the core.

Second, in your magic POE wrapping api, you can use POE::API::Peek to  
determine the state of the kernel. I've got a is_running() method in  
there that you can either use via my module or rip out and use with  
credit. Yay for the bsd license :) Using the module would help me know  
that it still works though :)

I'm just guessing here but I think your best ROI is the second option.  
Just my suggestion though :)

--
Matt Cashner
[email protected]
http://mattcashner.com
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