Two-enqueuer queue in Common2

David Eisenstat

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arXiv · 0805.0444

Two-enqueuer queue in Common2

David Eisenstat

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Abstract

The question of whether all shared objects with consensus number 2 belong to Common2, the set of objects that can be implemented in a wait-free manner by any type of consensus number 2, was first posed by Herlihy. In the absence of general results, several researchers have obtained implementations for restricted-concurrency versions of FIFO queues. We present the first Common2 algorithm for a queue with two enqueuers and any number of dequeuers.

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David Eisenstat. 2009-04-07. Two-enqueuer queue in Common2. https://arxiv.org/abs/0805.0444

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