On the power of locking

  • Authors:
  • Christos H. Papadimitriou

  • Affiliations:
  • M.I.T. Lab. for Computer Science

  • Venue:
  • SIGMOD '81 Proceedings of the 1981 ACM SIGMOD international conference on Management of data
  • Year:
  • 1981

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Abstract

We study the expressive power of locking primitives, as measured by ther ability to implement different concurrency control principles. We give a necessary and sufficient condition for a concurrency control principle (abstractly, a set of histories) to be implementable by binary semaphores. Also, we characterize exactly those sets of locking primitives that are no more powerful than binary semaphores.