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Victor Stinner
42d3bdeed6
in the _cache dictionary, even if we already got the result. We need to keep a reference to the overlapped object, otherwise the memory may be reused and GetQueuedCompletionStatus() may use random bytes and behaves badly. There is still a hack for ConnectNamedPipe(): the overlapped object is not register into _cache if the overlapped object completed directly. Log also an error in debug mode in ProactorIocp._loop() if we get an unexpected event. Add a protection in ProactorIocp.close() to avoid blocking, even if it should not happen. I still don't understand exactly why some the completion of some overlapped objects are not notified.