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COORDINATION
2008
Springer

Actors with Multi-headed Message Receive Patterns

9 years 8 months ago
Actors with Multi-headed Message Receive Patterns
Abstract. The actor model provides high-level concurrency abstractions to coordinate simultaneous computations by message passing. Languages implementing the actor model such as Erlang commonly only support single-headed pattern matching over received messages. We propose and design an extension of Erlang style actors with receive clauses containing multi-headed message patterns. Patterns may be non-linear and constrained by guards. We provide a number of examples to show the usefulness of the extension. We also explore the design space for multi-headed message matching semantics, for example first-match and rule priority-match semantics. The various semantics are inspired by the multi-set constraint matching semantics found in Constraint Handling Rules. This provides us with a formal model to study actors with multiheaded message receive patterns. The system can be implemented efficiently and we have built a prototype as a library-extension to Haskell.
Martin Sulzmann, Edmund S. L. Lam, Peter Van Weert
Added 18 Oct 2010
Updated 18 Oct 2010
Type Conference
Year 2008
Where COORDINATION
Authors Martin Sulzmann, Edmund S. L. Lam, Peter Van Weert
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