[issue23060] Assert fails in multiprocessing.heap.Arena.__setstate__ on Windows

[Antoine Pitrou]

Antoine Pitrou added the comment:

Or perhaps:

    buffer = mmap.mmap(-1, self.size, tagname=self.name)
    assert _winapi.GetLastError() == _winapi.ERROR_ALREADY_EXISTS
    self.buffer = buffer

?

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nosy: +pitrou

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