Hi,
I have a program with a master thread and several slave threads.
Whenever an exception occurs, in the master thread or in one of the
slave threads, I would like to interrupt all the threads and the main
program. Threading API does not seem to provide a way to stop a
thread, is there anyway to achieve that ?
The closest thing I found is thread.interrupt_main() but it's far from
perfect :
- it only allow to interrupt the main thread
- if the main thread is sleeping, it does not interrupt it (at least
on windows)
cheers,
Philippe
6  5706 
James Matthews wrote:
Group all the threads in a list and call the stop method on all of them.
what stop method?
</F>
James Matthews wrote:
def __stop(self):
self.__block.acquire()
self.__stopped = True
self.__block.notifyAll()
self.__block.release()
have you tried using that method? what happened? looking at the code,
what do you think it does?
</F>
On 24 Sie, 10:48, BlueBird <p...@freehackers.orgwrote:
>
Whenever an exception occurs, in the master thread or in one of the
slave threads, I would like to interrupt all the threads and the main
program. Threading API does not seem to provide a way to stop a
thread, is there anyway to achieve that ?
Note that killing, stopping, suspending and resuming Your thread at
arbitrary time leads to unpredictable results. For this reason i.e.
Java deprecated all such functions, and python didn't introduce them
at all. It makes sense as it leads to better-designed-code.
Regards
JW
On Aug 24, 8:35*pm, Dennis Lee Bieber <wlfr...@ix.netcom.comwrote:
On Sun, 24 Aug 2008 01:48:46 -0700 (PDT), BlueBird
<p...@freehackers.orgdeclaimed the following in comp.lang.python:
Whenever an exception occurs, in the master thread or in one of the
slave threads, I would like to interrupt all the threads and the main
program. Threading API does not seem to provide a way to stop a
thread, is there anyway to achieve that ?
* * * * The only safe way to "abort" a thread is by having it exit on its
own. This means one needs a means of setting an attribute that each
thread periodically checks within a while loop.
Unfortunately, this does not map very well with my program. Each of my
threads are calling foreign code (still written in python though),
which might be busy for 1 to 10 minutes with its own job.
I wanted something to easily interrupt every thread to prevent my
program to stall for 10 minutes if I want to stop it (getting tired of
killing python all the time).
Philippe
En Mon, 25 Aug 2008 05:00:07 -0300, BlueBird <ph**@freehackers.org>
escribi�:
On Aug 24, 8:35Â*pm, Dennis Lee Bieber <wlfr...@ix.netcom.comwrote:
>Â* Â* Â* Â* The only safe way to "abort" a thread is by having it exit on
its
own. This means one needs a means of setting an attribute that each
thread periodically checks within a while loop.
Unfortunately, this does not map very well with my program. Each of my
threads are calling foreign code (still written in python though),
which might be busy for 1 to 10 minutes with its own job.
I wanted something to easily interrupt every thread to prevent my
program to stall for 10 minutes if I want to stop it (getting tired of
killing python all the time).
If the foreign Python code is running on your own process, can't you make
it check a flag periodically?
If it runs as another process, killing it is a lot safer than killing a
thread.
--
Gabriel Genellina
En Mon, 25 Aug 2008 05:00:07 -0300, BlueBird <ph**@freehackers.org>
escribi¡Z:
Unfortunately, this does not map very well with my program. Each of my
threads are calling foreign code (still written in python though),
which might be busy for 1 to 10 minutes with its own job.
I wanted something to easily interrupt every thread to prevent my
program to stall for 10 minutes if I want to stop it (getting tired of
killing python all the time).
At the C level, Python has function to send an exception to a thread.
The threads will see the exception only when it executes Python code
(i.e. not when it is waiting or running in external (e.g. "C") code).
You may use (e.g.) "PyRex" to make a Python wrapper available
to your Python code.
Dieter This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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