[issue3027] if extended c module is calling Windows API waitForSingleObject, it will block other thread.

[patrick]

patrick <patrick_jiang at phoenix.com> added the comment:

Yes, after wrapping the calling to block operation with marco 
Py_BEGIN_ALLOW_THREADS and Py_END_ALLOW_THREADS, that issue is gone. 
Thank you.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue3027>
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