Pause a thread/ execfile()

[Saju Pillai]

On 26/10/09 12:28 PM, Babloo wrote:
> i have a small python application with GUI (frontend) which has
> various functions. I have a "RUN" button which runs python scripts in
> the background . It basically calls execfile() function internally
> which runs in a thread ,  to run the python script .
>
> I want to implement a "PAUSE" feature which would pause the running
> python script . So do that i have to either pause the thread in which
> execfile() runs or pause execfile itself .
>
> When the user presses "RUN" again then the python script should resume
> running .
>
>
> Any ideas how to pause the thread / pause execfile() . Any other ideas
> for the same would be helpful .

Other ideas ? You could use job control signals if you are on unix. Try
forking a child process instead of using a thread. Sending SIGSTOP to
the forked child will stop/pause it, SIGCONT will resume it.

-srp