[EMAIL PROTECTED] wrote:
> Guido> At some level, Queue is just an application of threading, while
> Guido> the threading module provides the basic API ...
>
> While Queue is built on top of threading Lock and Condition objects, it is a
> highly useful synchronization mechanism in its own right, and is almost
> certainly easier to use correctly (at least for novices) than the
> lower-level synchronization objects the threading module provides. If
> threading is the "friendly" version of thread, perhaps Queue should be
> considered the "friendly" synchronization object.
>
> (I'm playing the devil's advocate here. I'm fine with Queue being where it
> is.)
If we *don't* make Queue a part of the basic threading API (and I think Guido
is right that it doesn't need to be), then I suggest we create a threadtools
module.
So the thread-related API would actually have three layers:
- _thread (currently "_thread") for the low-level guts
- threading for the basic thread API that any threaded app needs
- threadtools for the more complex "application-specific" items
Initially threadtools would just contain Queue, but other candidates for
inclusion in the future might be standard implementations of:
- PeriodicTimer (see below)
- FutureCall (threading out a call, only blocking when you need the result
- QueueThread (a thread with "inbox" and "outbox" Queues)
- ThreadPool (up to the application to make sure the Threads are reusable)
- threading related decorators
Cheers,
Nick.
P.S. PeriodicTimer would be a variant of threading Timer which simply replaces
the run method with:
def run():
while 1:
self.finished.wait(self.interval)
if self.finished.isSet():
break
self.function(*self.args, **self.kwds)
--
Nick Coghlan | [EMAIL PROTECTED] | Brisbane, Australia
---------------------------------------------------------------
http://boredomandlaziness.blogspot.com
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