1,305 research outputs found
Kickstarting Choreographic Programming
We present an overview of some recent efforts aimed at the development of
Choreographic Programming, a programming paradigm for the production of
concurrent software that is guaranteed to be correct by construction from
global descriptions of communication behaviour
Combining behavioural types with security analysis
Today's software systems are highly distributed and interconnected, and they
increasingly rely on communication to achieve their goals; due to their
societal importance, security and trustworthiness are crucial aspects for the
correctness of these systems. Behavioural types, which extend data types by
describing also the structured behaviour of programs, are a widely studied
approach to the enforcement of correctness properties in communicating systems.
This paper offers a unified overview of proposals based on behavioural types
which are aimed at the analysis of security properties
Behavioral types in programming languages
A recent trend in programming language research is to use behav- ioral type theory to ensure various correctness properties of large- scale, communication-intensive systems. Behavioral types encompass concepts such as interfaces, communication protocols, contracts, and choreography. The successful application of behavioral types requires a solid understanding of several practical aspects, from their represen- tation in a concrete programming language, to their integration with other programming constructs such as methods and functions, to de- sign and monitoring methodologies that take behaviors into account. This survey provides an overview of the state of the art of these aspects, which we summarize as the pragmatics of behavioral types
Dynamic Choreographies - Safe Runtime Updates of Distributed Applications
Programming distributed applications free from communication deadlocks and
races is complex. Preserving these properties when applications are updated at
runtime is even harder. We present DIOC, a language for programming distributed
applications that are free from deadlocks and races by construction. A DIOC
program describes a whole distributed application as a unique entity
(choreography). DIOC allows the programmer to specify which parts of the
application can be updated. At runtime, these parts may be replaced by new DIOC
fragments from outside the application. DIOC programs are compiled, generating
code for each site, in a lower-level language called DPOC. We formalise both
DIOC and DPOC semantics as labelled transition systems and prove the
correctness of the compilation as a trace equivalence result. As corollaries,
DPOC applications are free from communication deadlocks and races, even in
presence of runtime updates.Comment: Technical Repor
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