Deconfined Global Types for Asynchronous Sessions

Multiparty sessions with asynchronous communications and global types play an important role for the modelling of interaction protocols in distributed systems. In designing such calculi the aim is to enforce, by typing, good properties for all participants, maximising, at the same time, the accepted...

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Bibliographic Details
Published inLogical methods in computer science Vol. 19, Issue 1
Main Authors Dagnino, Francesco, Giannini, Paola, Dezani-Ciancaglini, Mariangiola
Format Journal Article
LanguageEnglish
Published Logical Methods in Computer Science e.V 01.01.2023
Subjects
computer science - logic in computer science
computer science - programming languages
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Summary:Multiparty sessions with asynchronous communications and global types play an important role for the modelling of interaction protocols in distributed systems. In designing such calculi the aim is to enforce, by typing, good properties for all participants, maximising, at the same time, the accepted behaviours. Our type system improves the state-of-the-art by typing all asynchronous sessions and preserving the key properties of Subject Reduction, Session Fidelity and Progress when some well-formedness conditions are satisfied. The type system comes together with a sound and complete type inference algorithm. The well-formedness conditions are undecidable, but an algorithm checking an expressive restriction of them recovers the effectiveness of typing.
ISSN:1860-5974
1860-5974
DOI:10.46298/lmcs-19(1:3)2023