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Documents authored by Bartolo Burlò, Christian

Document
Artifact
DOI: 10.4230/DARTS.7.2.2
On the Monitorability of Session Types, in Theory and Practice (Artifact)

Authors: Christian Bartolo Burlò, Adrian Francalanza, and Alceste Scalas

Published in: DARTS, Volume 7, Issue 2, Special Issue of the 35th European Conference on Object-Oriented Programming (ECOOP 2021)

Abstract
In the paper "On the Monitorability of Session Types, in Theory and Practice" we study the monitorability of message-passing black-box processes against protocol specifications expressed as session types; we formalise a monitor synthesis procedure, prove its correctness, and discuss its implementation - as a tool that synthesises an executable monitor (in the Scala programming language) from a given session type. This artifact contains the aforementioned monitor synthesis tool, called STMonitor; it includes the tool source code, and documentation to reproduce the examples and benchmarks described in the paper.
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Christian Bartolo Burlò, Adrian Francalanza, and Alceste Scalas. On the Monitorability of Session Types, in Theory and Practice (Artifact). In Special Issue of the 35th European Conference on Object-Oriented Programming (ECOOP 2021). Dagstuhl Artifacts Series (DARTS), Volume 7, Issue 2, pp. 2:1-2:3, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@Article{bartoloburlo_et_al:DARTS.7.2.2,
  author =	{Bartolo Burl\`{o}, Christian and Francalanza, Adrian and Scalas, Alceste},
  title =	{{On the Monitorability of Session Types, in Theory and Practice (Artifact)}},
  pages =	{2:1--2:3},
  journal =	{Dagstuhl Artifacts Series},
  ISSN =	{2509-8195},
  year =	{2021},
  volume =	{7},
  number =	{2},
  editor =	{Bartolo Burl\`{o}, Christian and Francalanza, Adrian and Scalas, Alceste},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DARTS.7.2.2},
  URN =		{urn:nbn:de:0030-drops-140267},
  doi =		{10.4230/DARTS.7.2.2},
  annote =	{Keywords: Session types, monitorability, monitor correctness, Scala}
}
Document
DOI: 10.4230/LIPIcs.ECOOP.2021.20
On the Monitorability of Session Types, in Theory and Practice

Authors: Christian Bartolo Burlò, Adrian Francalanza, and Alceste Scalas

Published in: LIPIcs, Volume 194, 35th European Conference on Object-Oriented Programming (ECOOP 2021)

Abstract
Software components are expected to communicate according to predetermined protocols and APIs. Numerous methods have been proposed to check the correctness of communicating systems against such protocols/APIs. Session types are one such method, used both for static type-checking as well as for run-time monitoring. This work takes a fresh look at the run-time verification of communicating systems using session types, in theory and in practice. On the theoretical side, we develop a formal model of session-monitored processes. We then use this model to formulate and prove new results on the monitorability of session types, defined in terms of soundness (i.e., whether monitors only flag ill-typed processes) and completeness (i.e., whether all ill-typed processes can be flagged by a monitor). On the practical side, we show that our monitoring theory is indeed realisable: we instantiate our formal model as a Scala toolkit (called STMonitor) for the automatic generation of session monitors. These executable monitors can be used as proxies to instrument communication across black-box processes written in any programming language. Finally, we evaluate the viability of our approach through a series of benchmarks.
Cite as

Christian Bartolo Burlò, Adrian Francalanza, and Alceste Scalas. On the Monitorability of Session Types, in Theory and Practice. In 35th European Conference on Object-Oriented Programming (ECOOP 2021). Leibniz International Proceedings in Informatics (LIPIcs), Volume 194, pp. 20:1-20:30, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{bartoloburlo_et_al:LIPIcs.ECOOP.2021.20,
  author =	{Bartolo Burl\`{o}, Christian and Francalanza, Adrian and Scalas, Alceste},
  title =	{{On the Monitorability of Session Types, in Theory and Practice}},
  booktitle =	{35th European Conference on Object-Oriented Programming (ECOOP 2021)},
  pages =	{20:1--20:30},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-190-0},
  ISSN =	{1868-8969},
  year =	{2021},
  volume =	{194},
  editor =	{M{\o}ller, Anders and Sridharan, Manu},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ECOOP.2021.20},
  URN =		{urn:nbn:de:0030-drops-140630},
  doi =		{10.4230/LIPIcs.ECOOP.2021.20},
  annote =	{Keywords: Session types, monitorability, monitor correctness, Scala}
}
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