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Integrating and Extending JCSP

Welch, Peter H. and Brown, Neil C.C. and Moores, James and Chalmers, Kevin and Sputh, Bernhard H. C. (2007) Integrating and Extending JCSP. In: Schneider, S.A. and McEwan, Alistair A. and Ifill, W. and Welch, Peter H., eds. Communicating Process Architectures 2007. Concurrent Systems Engineering, 65 . IOS, Amsterdam, Netherlands, pp. 349-370. ISBN 978-1-58603-767-3. E-ISBN 978-1-60750-261-6.


This paper presents the extended and re-integrated JCSP library of CSP packages for Java. It integrates the differing advances made by Quickstones JCSP Network Edition and the core library maintained at Kent. A more secure API for connecting networks and manipulating channels is provided, requiring significant internal re-structuring. This mirrors developments in the occam-pi language for mandated direction specifiers on channel-ends. For JCSP, promoting the concept of channel-ends to first-class entities has both semantic benefit (the same as for occampi) and increased safety. Major extensions include alting barriers (classes supporting external choice over multiple multi-way synchronisations), channel output guards (straightforward once we have the alting barriers), channel poisoning (for the safe and simple termination of networks or sub-networks) and extended rendezvous on channel communications (that simplify the capture of several useful synchronisation design patterns). Almost all CSP systems can now be directly captured with the new JCSP. The new library is available under the LGPL open source license.

Item Type: Book section
Uncontrolled keywords: JCSP, Alting Barriers, Output Guards, Extended Rendezvous, Poison
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Faculties > Sciences > School of Computing > Systems Architecture Group
Depositing User: Neil Brown
Date Deposited: 29 Mar 2010 12:10 UTC
Last Modified: 03 Jun 2019 09:34 UTC
Resource URI: (The current URI for this page, for reference purposes)
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