stream.segmented: properly fix wait() in writer #5237
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Follow-up of f234c69 Properly fix the `SegmentedStreamWriter`'s `_wait` Event when closing the thread. Depending on which thread attempted to close the writer thread, the `close()` method's `self.reader.close()` call can block, leading to the `_wait` event to not get set until all threads have terminated and joined. So make sure to set the event first, so that all threads of the writer's thread-pool executor can be stopped first, for example segment downloads waiting for the segment's availability.
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Follow-up of f234c69
Properly fix the
SegmentedStreamWriter's_waitEvent when closing the thread.Depending on which thread attempted to close the writer thread, the
close()method'sself.reader.close()call can block, leading to the_waitevent to not get set until all threads have terminated and joined. So make sure to set the event first, so that all threads of the writer's thread-pool executor can be stopped first, for example segment downloads waiting for the segment's availability.Follow-up of #5236