Prioritised Dynamic Communicating and Mobile Processes

Barnes, Frederick R.M. and Welch, Peter H. (2003) Prioritised Dynamic Communicating and Mobile Processes. IEE Proceedings: Software, 150 (2). pp. 121-136. ISSN 1462-5970. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Continuing research on language design, compilation and kernel support for highly dynamic concurrent reactive systems is reported. The work extends the occam multiprocessing language, which is both sufficiently small to allow for easy experimentation and sufficiently powerful to yield results that are directly applicable to a wide range of industrial and commercial practice. Classical occam was designed for embedded systems and enforced a number of constraints, such as statically predetermined memory allocation and concurrency limits, that were relevant to that generation of application and hardware technology. This work removes most of these constraints and introduces a number of new facilities: explicit channel ends, channel bundles, mobile ends of channels and bundles, dynamic process creation, the extended rendezvous and process priorities. These significantly broaden occam's field of application and raise the level of concurrent system design directly supported. Concurrency overheads have been driven ever downwards, for example synchronising channel communication is now around 100 nanoseconds on an 800 MHz P3, and most operations have unit time cost. Finally, a proposal for secure mobile processes is made.

Item Type: Article
Uncontrolled keywords: Mobile, Concurrency, CSP, occam, dynamic, channels, safety, security
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Faculties > Science Technology and Medical Studies > School of Computing
Depositing User: Mark Wheadon
Date Deposited: 24 Nov 2008 18:01
Last Modified: 28 Apr 2014 08:13
Resource URI: (The current URI for this page, for reference purposes)
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