multiprocessing.sharedctypes and built-in locks
Ahmad Syukri b
syockit at gmail.com
Mon Mar 16 00:42:00 EDT 2009
On Mar 15, 6:19 am, Aaron Brady <castiro... at gmail.com> wrote:
>
> Your code hung on my machine. The call to 'main()' should be in an
> 'if __name__' block:
>
> if __name__== '__main__':
> main()
>
> Is it possible you are just seeing the effects of the non-atomic
> '__iadd__' operation? That is, the value is read, added, and written
> at different times, between which other processes might have
> intervened.
I've forgotten to remove ' gl.append(mp.Lock()) ' from the second
code.
Anyways if what you said is true, then why doesn't the documentation
say so? I also realized that the created lock's release and acquire
methods are also imbued to the created shared object, and this is also
undocumented.
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