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On Programming Atomic Actions in Ada 95

Lookup NU author(s): Professor Alexander Romanovsky

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Abstract

This paper describes the development of two kinds of atomic action schemes for Ada 95. We start by discussing the basic features required of an atomic action scheme and what choices, e.g. between synchronous and asynchronous actions, are appropriate for Ada 95. We then present two implementations of actions; first using Ada 95 packages to create asynchronous actions and secondly, as sets of tasks for synchronous actions. For each action type, we present code fragments illustrating their development and use. Finally, we discuss some related issues (exception resolution, action nesting, state restoration, software re-use and extension, preventing information smuggling, distributed execution) which have been addressed in our work and show some of the problems encountered (the deserter problem, using different sorts of inter-participant communications and resources).


Publication metadata

Author(s): Romanovsky A, Mitchell SE, Wellings AJ

Publication type: Report

Publication status: Published

Series Title: Department of Computing Science Technical Report Series

Year: 1997

Pages: 12

Report Number: 586

Institution: Department of Computing Science, University of Newcastle upon Tyne

Place Published: Newcastle upon Tyne

URL: http://www.cs.ncl.ac.uk/publications/trs/papers/586.pdf


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