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arXiv · 1209.4499

Controllable-choice Message Sequence Graphs

Martin Chmelík·Vojtěch Řehák
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Abstract

We focus on the realizability problem of Message Sequence Graphs (MSG), i.e. the problem whether a given MSG specification is correctly distributable among parallel components communicating via messages. This fundamental problem of MSG is known to be undecidable. We introduce a well motivated restricted class of MSG, so called controllable-choice MSG, and show that all its models are realizable and moreover it is decidable whether a given MSG model is a member of this class. In more detail, this class of MSG specifications admits a deadlock-free realization by overloading existing messages with additional bounded control data. We also show that the presented class is the largest known subclass of MSG that allows for deadlock-free realization.

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Martin Chmelík, Vojtěch Řehák. 2012-09-20. Controllable-choice Message Sequence Graphs. https://arxiv.org/abs/1209.4499

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