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Handling Aperiodic Tasks in Diverse Real-Time Systems via Plug-Ins

Fulltext:


Authors:

Tomas Lennvall, Gerhard Fohler, Björn Lindberg

Publication Type:

Conference/Workshop Paper

Venue:

5th IEEE International Symposium on Object-oriented Real-time distributed Computing

Abstract

Functionality for various services of scheduling algorithms is typically provided as extensions to a basic algorithm. Aperiodic task handling, guarantees, etc. are integrated with a specific basic scheme, such as earliest deadline first, rate monotonic, or off-line scheduling. Thus, scheduling services come in packages of scheduling schemes, fixed to a certain methodology. Consequently, designers have to choose a single scheduling package, although the desired functionality may be spread over several. Instead, there is a need to seamlessly integrate new functionality with a developed system, enabling designers to choose the best of various packages. <br> In this paper, we propose the use of a plug-in approach to add functionality to existing scheduling schemes. In particular, we present two plug-ins for aperiodic task handling as plug-ins. Instead of extending an existing scheduling package, we concentrate the functionality into a module, define the interface and discuss its application to off-line and on-line scheduling methods as examples.

Bibtex

@inproceedings{Lennvall311,
author = {Tomas Lennvall and Gerhard Fohler and Bj{\"o}rn Lindberg},
title = {Handling Aperiodic Tasks in Diverse Real-Time Systems via Plug-Ins},
month = {May},
year = {2002},
booktitle = {5th IEEE International Symposium on Object-oriented Real-time distributed Computing},
url = {http://www.es.mdu.se/publications/311-}
}