Coordination of Tasks on a Real-Time OS - Inria - Institut national de recherche en sciences et technologies du numérique Accéder directement au contenu
Communication Dans Un Congrès Année : 2019

Coordination of Tasks on a Real-Time OS

Résumé

VirtuosoNext$^{\text {TM}}$ TMis a distributed real-time operating system (RTOS) featuring a generic programming model dubbed Interacting Entities. This paper focuses on these interactions, implemented as so-called Hubs. Hubs act as synchronisation and communication mechanisms between the application tasks and implement the services provided by the kernel as a kind of Guarded Protected Action with a well defined semantics. While the kernel provides the most basic services, each carefully designed, tested and optimised, tasks are limited to this handful of basic hubs, leaving the development of more complex synchronization and communication mechanisms up to application specific implementations. In this work we investigate how to support a programming paradigm to compositionally build new services, using notions borrowed from the Reo coordination language, and relieving tasks from coordination aspects while delegating them to the hubs. We formalise the semantics of hubs using an automata model, identify the behaviour of existing hubs, and propose an approach to build new hubs by composing simpler ones. We also provide tools and methods to analyse and simplify hubs under our automata interpretation. In a first experiment several hub interactions are combined into a single more complex hub, which raises the level of abstraction and contributes to a higher productivity for the programmer. Finally, we investigate the impact on the performance by comparing different implementations on an embedded board.
Fichier principal
Vignette du fichier
478673_1_En_15_Chapter.pdf (653.75 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02365513 , version 1 (15-11-2019)

Licence

Paternité

Identifiants

Citer

Guillermina Cledou, José Proença, Bernhard Sputh, Eric Verhulst. Coordination of Tasks on a Real-Time OS. 21th International Conference on Coordination Languages and Models (COORDINATION), Jun 2019, Kongens Lyngby, Denmark. pp.250-266, ⟨10.1007/978-3-030-22397-7_15⟩. ⟨hal-02365513⟩
41 Consultations
81 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More