[issue9205] Parent process hanging in multiprocessing if children terminate unexpectedly

[Ask Solem]

Ask Solem <askh at opera.com> added the comment:

> but if you make a blocking call such as in the following program,
> you'll get a hang

Yeah, and for that we could use the same approach as for the maps.

But, I've just implemented the accept callback approach, which should be superior. Maps/Apply fails instantly as soon as a worker process crashes, but the pool remains fully functional. Patch  multiprocessing-trunk at 82502-termination-trackjobs.patch added.

There seems to be some race conditions left, because some of the tests breaks from time to time. Maybe you can pinpoint it before me.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue9205>
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