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Monitors with associated processors

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Abstract

The present paper describes an implementation of shared variables (monitors) using dedicated processors. Scheduling using condition variables with the operations signal and wait is discussed and related to the maintenance of a synchronization invariant introduced. The discussion also leads to the introduction of two new primitives (return and a combined wait/signal) that can be used to remove unwanted side effects of signaling.

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References

  1. Per Brinch Hansen,Distributed processes, a concurrent programming concept, Comm. ACM, vol. 21. no 11, Nov. 1978.

  2. Stein Gjessing,Compile time preparations for run time scheduling in monitors, BIT Vol. 18, No. 1, 1978.

  3. C. A. R. Hoare,Proof of correctness of data representations, Acta Informatica, vol. 1, 1971.

  4. C. A. R. Hoare,Monitors: An operating system structuring concept, Comm. ACM, Vol. 17, no 10, Oct. 1974.

  5. C. A. R. Hoare,Communicating sequential processes, Comm. ACM, vol. 21, no 8, Aug. 1978.

  6. John H. Howard,Proving monitors, Comm. ACM, vol. 19, no 5, May 1976.

  7. Arne Wang and Ole-Johan Dahl,Coroutine sequencing in a block structured environment, BIT, vol. 11, no 4, 1971.

  8. N. Wirth,Toward a discipline of real-time programming, Comm. ACM, vol. 20, no 8, Aug. 1977.

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Authors and Affiliations

  1. Institutt for Informatikk, Universitetet I Oslo, Blindern, Oslo 3, Norge

    Stein Gjessing

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  1. Stein Gjessing
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Gjessing, S. Monitors with associated processors. BIT 19, 334–346 (1979). https://doi.org/10.1007/BF01930987

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  • DOI: https://doi.org/10.1007/BF01930987

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