%0 Journal Article %T A Petri Net Based Modeling of Active Objects and Futures %+ Centrum Wiskunde & Informatica (CWI) %+ Foundations of Component-based Ubiquitous Systems (FOCUS) %+ Universidad Nacional de Córdoba [Argentina] %+ Department of Computer Science and Engineering [Bologna] (DISI) %A de Boer, Frank, S. %A Bravetti, Mario %A Lee, Matias, David %A Zavattaro, Gianluigi %< avec comité de lecture %@ 0169-2968 %J Fundamenta Informaticae %I Polskie Towarzystwo Matematyczne %V 159 %N 3 %P 197-256 %8 2018 %D 2018 %R 10.3233/FI-2018-1663 %K Petri nets %K active objects %K deadlock analysis %Z Computer Science [cs]/Computation and Language [cs.CL]Journal articles %X We give two different notions of deadlock for systems based on active objects and futures. One is based on blocked objects and conforms with the classical definition of deadlock by Coffman, Jr. et al. The other one is an extended notion of deadlock based on blocked processes which is more general than the classical one. We introduce a technique to prove deadlock freedom of systems of active objects. To check deadlock freedom an abstract version of the program is translated into Petri nets. Extended deadlocks, and then also classical deadlock, can be detected via checking reachability of a distinct marking. Absence of deadlocks in the Petri net constitutes deadlock freedom of the concrete system. %G English %2 https://inria.hal.science/hal-01919136/document %2 https://inria.hal.science/hal-01919136/file/fundainfo.pdf %L hal-01919136 %U https://inria.hal.science/hal-01919136 %~ INRIA %~ INRIA-SOPHIA %~ INRIASO %~ INRIA_TEST %~ TESTALAIN1 %~ INRIA2 %~ UNIV-COTEDAZUR %~ INRIAARTDOI