A Deadlock-Free Semantics for Shared Memory Concurrency

  • Authors:
  • Gérard Boudol

  • Affiliations:
  • INRIA, Sophia Antipolis, France 06902

  • Venue:
  • ICTAC '09 Proceedings of the 6th International Colloquium on Theoretical Aspects of Computing
  • Year:
  • 2009

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Abstract

We design a deadlock-free semantics for a concurrent, functional and imperative programming language where locks are implicitly and univocally associated with pointers. The semantics avoids unsafe states by relying on a static analysis of programs, by means of a type and effect system. The system uses singleton reference types, which allow us to have a precise information about the pointers that are anticipated to be locked by an expression.