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Actor ! Actor ! STM!

Some links related to Actor-based, Software Transactional Memory (STM) and message-based concurrency libraries and articles.

• Wikipedia on Actors
• IT Conversations interviews Carl Hewitt, one of the people who developed the Actor model
• Actor Frameworks for the JVM Platform: A Comparative Analysis, PDF
• Capabilities for External Uniqueness, PDF, using the Scala type system to enforce constraints such that, e.g. one can determine messages passed between actors are not mutated by the receiver.
• Jetlang, based on Retlang, and Java library for message-based concurrency
• Sujit Pal’s blog posts (including this one) on trying out various Actor libraries for the JVM, including Scala, Kilim, Jetlang and Actor’s Guild
• Mike Rettig’s blog post on using Jetlang, comparing the Scala Actor and Jetlang approaches
• Actors Guild framework, “an experimental Java framework to make concurrent programming easier. It combines the concept of Actors with Futures”
• ActorFoundry, a JVM-based library for Actor programming from the University of Illinois
• Actorom, a “a pure Java implementation of the Actors Concurrency Model, aimed at making message-passing concurrency mainstream in everyday Java development“
• Multiverse, “a Java 1.6+ based Software Transactional Memory (STM) implementation that uses Multi Version Concurrency Control (MVCC) as concurrency control mechanism”
• Kilim, a “message-passing framework for Java that provides ultra-lightweight threads and facilities for fast, safe, zero-copy messaging between these threads”.
• A video on the Kilim framework availabe on Google TechTalks