Typing Liveness in Multiparty Communicating Systems

Luca Padovani (1) , Vasco Thudichum Vasconcelos (2) , Hugo Torres Vieira (2)

1 UNITO - Università degli studi di Torino = University of Turin
2 ULISBOA - Universidade de Lisboa = University of Lisbon

Session type systems are an effective tool to prove that communicating programs do not go wrong, ensuring that the participants of a session follow the protocols described by the types. In a previous work we introduced a typing discipline for the analysis of progress in binary sessions. In this paper we generalize the approach to multiparty sessions following the conversation type approach, while strengthening progress to liveness. We combine the usual session-like fidelity analysis with the liveness analysis and devise an original treatment of recursive types allowing us to address challenging configurations that are out of the reach of existing approaches.

Domaines: Informatique [cs]; Réseaux et télécommunications [cs.NI]

Luca Padovani, Vasco Thudichum Vasconcelos, Hugo Torres Vieira. Typing Liveness in Multiparty Communicating Systems. 16th International Conference on Coordination Models and Languages (COORDINATION), Jun 2014, Berlin, Germany. pp.147-162, ⟨10.1007/978-3-662-43376-8_10⟩. ⟨hal-01290074⟩