NDLI: Reactive Async: expressive deterministic concurrency

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Reactive Async: expressive deterministic concurrency

Content Provider	ACM Digital Library
Author	Geries, Simon Haller, Philipp Eichberg, Michael Salvaneschi, Guido
Abstract	Concurrent programming is infamous for its difficulty. An important source of difficulty is non-determinism, stemming from unpredictable interleavings of concurrent activities. Futures and promises are widely-used abstractions that help designing deterministic concurrent programs, although this property cannot be guaranteed statically in mainstream programming languages. Deterministic-by-construction concurrent programming models avoid this issue, but they typically restrict expressiveness in important ways. This paper introduces a concurrent programming model, Reactive Async, which decouples concurrent computations using so-called cells, shared locations which generalize futures as well as recent deterministic abstractions such as LVars. Compared to previously proposed programming models Reactive Async provides (a) a fallback mechanism for the case where no computation ever computes the value of a given cell, and (b) explicit and optimized handling of cyclic dependencies. We present a complete implementation of the Reactive Async programming model as a library in Scala. Finally, the paper reports on a case study applying Reactive Async to static analyses of JVM bytecode based on the Opal framework. .
Starting Page	11
Ending Page	20
Page Count	10
File Format	PDF
ISBN	9781450346481
DOI	10.1145/2998392.2998396
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2016-10-30
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Scala Static analysis Asynchronous programming Deterministic concurrency Concurrent programming
Content Type	Text
Resource Type	Article

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