En Wed, 18 Jun 2008 21:39:41 -0300, Brendon Costa <[EMAIL PROTECTED]>
escribió:
I have a small python project i am working on. Basically i always have
two threads. A "Read" thread that sits in a loop reading a line at a
time from some input (Usually stdin) and then generating events to be
processed and a "Proc" thread that processes incoming events from a
queue. There will be additional threads as well that asynchronously
insert events into the queue to be processed, but they are not a part
of this so i have omitted them.
What i want to know is: "What is the standard/best way of implementing
such a pattern that works in the presence of errors and particularly
with the KeyboardInterrupt exception?"
I don't know the "standard" way, but perhaps you can get some ideas from
this recent thread:
http://groups.google.com/group/comp.lang.python/browse_thread/thread/82636f1bdd1d2d83/
Some sample code is shown below. This code works as is, except in the
case where the "Proc" thread wants to initiate the exit of the
application.
You might try using the PyThreadState_SetAsyncExc function (from the
Python C API) to inject a KeyboardInterrupt exception into the Read thread
- but I don't know if it will work at all, the execution might be blocked
waiting for an I/O call to complete, and never return to Python code...
--
Gabriel Genellina
--
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