[issue15330] allow deque to act as a thread-safe circular buffer

[Chris Jerdonek]

Chris Jerdonek <chris.jerdonek at gmail.com> added the comment:

Yes, atomic. I was under the impression that the existing deque.rotate() is atomic, in which case deque.rotate(1) almost provides what I'm suggesting (lacking only the return value).

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15330>
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