A Circus semantics for Ravenscar protected objects

Atiya, Diyaa-Addein and King, Steve and Woodcock, Jim (2003) A Circus semantics for Ravenscar protected objects. In: Araki, Keijiro and Gnesi, Stefania and Mandrioli, Dion, eds. LECTURE NOTES IN COMPUTER SCIENCE. SPRINGER-VERLAG BERLIN, HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY pp. 617-635. ISBN 3-540-40828-2. (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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The Ravenscar profile is a subset of the Ada 95 tasking model: it is certifiable, deterministic, supports schedulability analysis, and meets tight memory constraints and performance requirements. A central feature of Ravenscar is the use of protected objects to ensure mutually exclusive access to shared data. We give a semantics to protected objects using Circus, a combination of Z and CSP, and prove several important properties; this is the first time that these properties have been verified. Interestingly, all the proofs are conducted in Z, even the ones concerning reactive behaviour.

Item Type: Conference or workshop item (UNSPECIFIED)
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Faculties > Science Technology and Medical Studies > School of Computing > Systems Architecture Group
Depositing User: Mark Wheadon
Date Deposited: 24 Nov 2008 18:00
Last Modified: 13 Jun 2014 14:23
Resource URI: https://kar.kent.ac.uk/id/eprint/13836 (The current URI for this page, for reference purposes)
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