Terminate a thread that doesn't check for events

[Liu Shuai]

Thanks for the reply Chris. 

Are you suggesting running the task in a *separate* process instead of a
separate *thread*? Because if that's the case, I will have to share data
(and possible memory) between that new process and my "master" process
since they depend on one other.

Yeah I will sure post it if I can find an elegant solution.

Thank you,
LS

> -----Original Message-----
> From: Chris Lambacher [mailto:lambacck at computer.org]
> Sent: Tuesday, August 02, 2005 11:50 AM
> To: Liu Shuai
> Subject: Re: Terminate a thread that doesn't check for events
> 
> Hi,
> 
> There is no cross platform way to do this.  You need to periodically
check
> a
> quit flag, or perform a platform specific action to terminate it.  On
> Linux
> you can send the process a signal.  On windows you will need to use
the
> win32all package.  If you decide to go the later route, maybe you
could
> encapsulate the thread termination code in a module and share it with
the
> Python community.
> 
> -Chris
> 
> On Tue, Aug 02, 2005 at 09:51:31AM -0400, Liu Shuai wrote:
> >    Can someone please comment on this?
> >
> >
> >
> >
---------------------------------------------------------------------
> -----
> >
> >    From: python-list-bounces+sliu=kaneva.com at python.org
> >    [mailto:python-list-bounces+sliu=kaneva.com at python.org] On Behalf
Of
> Liu
> >    Shuai
> >    Sent: Monday, August 01, 2005 4:29 PM
> >    To: python-list at python.org
> >    Subject: Terminate a thread that doesn't check for events
> >
> >
> >
> >    Hi all,
> >
> >
> >
> >    I am aware that similar and probably same questions have been
posted
> many
> >    times, but I was unable to find a solution after reading a dozen
> threads
> >    in the archive. So here it goes again.
> >
> >
> >
> >    I have a thread that does some heavy task (hash calculation, for
> >    instance). I need a mechanism that works *across platforms* to
stop
> that
> >    calculation if user decides to exit. How can I do that?
> >
> >    I can not do the standard "periodical checking" way since there
is
> only
> >    one function/step call in my thread.
> >
> >
> >
> >    Here is a snippet of my thread classes to help illustrate the
> problem:
> >
> >
> >
> >    class Dispatcher():
> >
> >        def __init__(self):
> >
> >                self.__worker = Worker()
> >
> >
> >
> >        def start(self):
> >
> >            self.__worker.start()
> >
> >
> >
> >        def stop():
> >
> >                #how do i stop the worker?
> >
> >
> >
> >    class Worker(threading.Thread):
> >
> >        def __init__(self):
> >
> >
> >
> >        def run(self):
> >
> >                oneTimeConsumingCall()
> >
> >
> >
> >
> >
> >    Thank you in advance for any suggestions/pointers.
> >
> >
> >
> >    LS
> 
> > --
> > http://mail.python.org/mailman/listinfo/python-list