Analysis of Synchronisations in Stateful Active Objects

Ludovic Henrio (1, 2) , Cosimo Laneve (3, 4) , Vincenzo Mastandrea (4, 5)

1 CNRS - Centre National de la Recherche Scientifique
2 I3S - Laboratoire d'Informatique, Signaux, et Systèmes de Sophia Antipolis
3 DISI - Department of Computer Science and Engineering [Bologna]
4 FOCUS - Foundations of Component-based Ubiquitous Systems
5 COMUE UCA - COMUE Université Côte d'Azur (2015-2019)

This paper presents a static analysis technique based on effects and behavioural types for deriving synchronisation patterns of stateful active objects and verifying the absence of deadlocks in this context. This is challenging because active objects use futures to refer to results of pending asynchronous invocations and because these futures can be stored in object fields, passed as method parameters, or returned by invocations. Our effect system traces the access to object fields, thus allowing us to compute behavioural types that express synchronisation patterns in a precise way. The behavioural types are thereafter analysed by a solver that discovers potential deadlocks.

Domaines: Calcul parallèle, distribué et partagé [cs.DC]

Ludovic Henrio, Cosimo Laneve, Vincenzo Mastandrea. Analysis of Synchronisations in Stateful Active Objects. IFM 2017 - 13th International Conference on Integrated Formal Methods, Sep 2017, Torino, France. ⟨10.1007/978-3-540-74792-5_5⟩. ⟨hal-01627866⟩