[Zope-dev] Re: Event & Timer Service for Zope 2.8

Tres Seaver tseaver at palladion.com
Fri Jul 22 11:04:30 EDT 2005


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Dylan Jay wrote:
> Tres Seaver wrote:
> 
>> Chris' ClockServer removes the need for such a thread, by hooking
>> ZServer's mainloop to generate the "faux" request needed to kick off
>> async processing.  A "crontab" - like schedule can be driven equally
>> well from ClockScheduler as from a separate thread.
> 
> 
> So what's wrong with including ClockServer in the core or making it
> easier to install? (ie not having to put packages in the python path
> which is hard with some hosting arrangements)

Hmm, I thought I was arguing *for* including ClockServer in the core;
what I don't want is some of the alternatives which rely on running
special threads.

> And what's the argument against a core scheduler regardless of a clock?
> Isn't running background tasks a common need amoungst many very
> different tools and therefore a interstructure issue?

I could see including the Scheduler product as well, although there are
some issues for "long-running" tasks which might not fit well (conflicts
on the schedule itself are possible).


Tres.
- --
===================================================================
Tres Seaver          +1 202-558-7113          tseaver at palladion.com
Palladion Software   "Excellence by Design"    http://palladion.com
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