Abstract
We present a framework for the distributed monitoring of networks of components that coordinate by message-passing, following multiparty session protocols specified as global types. We improve over prior works by (i) supporting components whose exact specification is unknown (“blackboxes”) and (ii) covering protocols that cannot be analyzed by existing techniques. We first give a procedure for synthesizing monitors for blackboxes from global types, and precisely define when a blackbox correctly satisfies its global type. Then, we prove that monitored blackboxes are sound (they correctly follow the protocol) and transparent (blackboxes with and without monitors are behaviorally equivalent).
This research has been supported by the Dutch Research Council (NWO) under project No. 016.Vidi.189.046 (Unifying Correctness for Communicating Software).
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We are grateful to the anonymous reviewers for useful remarks.
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van den Heuvel, B., Pérez, J.A., Dobre, R.A. (2023). Monitoring Blackbox Implementations of Multiparty Session Protocols. In: Katsaros, P., Nenzi, L. (eds) Runtime Verification. RV 2023. Lecture Notes in Computer Science, vol 14245. Springer, Cham. https://doi.org/10.1007/978-3-031-44267-4_4
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