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RMoX: A Raw-Metal occam Experiment

Barnes, Frederick R.M. and Jacobsen, Christian L. and Vinter, Brian (2003) RMoX: A Raw-Metal occam Experiment. In: Broenink, Jan F. and Hilderink, Gerald H., eds. Communicating Process Architectures 2003. Concurrent Systems Engineering . IOS Press, Amsterdam, Netherlands, pp. 269-288. ISBN 978-1-58603-381-1. (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) (KAR id:13917)

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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Operating-systems are the core software component of many modern computer systems, ranging from small specialised embedded systems through to large distributed operating-systems. This paper presents RMoX: a highly concurrent CSP-based operating-system written in occam. The motivation for this stems from the overwhelming need for reliable, secure and scalable operating-systems. The majority of operating-systems are written in C, a language that easily offers the level of flexibility required (for example, interfacing with assembly routines). C compilers, however, provide little or no mechanism to guard against race-hazard and aliasing errors, that can lead to catastrophic run-time failure (as well as to more subtle errors, such as security loop-holes). The RMoX operating-system presents a novel approach to operating-system design (although this is not the first CSP-based operating-system). Concurrency is utilised at all levels, resulting in a system design that is well defined, easily understood and scalable. The implementation, using the KRoC extended occam, provides guarantees of freedom from race-hazard and aliasing errors, and makes extensive use of the recently added support for dynamic process creation and channel mobility. Whilst targeted at mainstream computing, the ideas and methods presented are equally applicable for small-scale embedded systems --- where advantage can be made of the lightweight nature of RMoX (providing fast interrupt responses, for example).

Item Type: Book section
Uncontrolled keywords: occam concurrency operating-system embedded
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Computing
Depositing User: Mark Wheadon
Date Deposited: 24 Nov 2008 18:00 UTC
Last Modified: 16 Nov 2021 09:52 UTC
Resource URI: (The current URI for this page, for reference purposes)

University of Kent Author Information

Barnes, Frederick R.M..

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Jacobsen, Christian L..

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