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Erschienen in:
2007 | OriginalPaper | Buchkapitel
Actors That Unify Threads and Events
verfasst von : Philipp Haller, Martin Odersky
Erschienen in: Coordination Models and Languages
Verlag: Springer Berlin Heidelberg
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There is an impedance mismatch between message-passing concurrency and virtual machines, such as the JVM. VMs usually map their threads to heavyweight OS processes. Without a lightweight process abstraction, users are often forced to write parts of concurrent applications in an event-driven style which obscures control flow, and increases the burden on the programmer.
In this paper we show how thread-based and event-based programming can be unified under a single actor abstraction. Using advanced abstraction mechanisms of the Scala programming language, we implemented our approach on unmodified JVMs. Our programming model integrates well with the threading model of the underlying VM.