Selected sections of this report will be published in the Proceedings of the 5th IEEE International Workshop on Factory Communication Systems, pp. 265-274, Vienna, Austria, September 2004.
This paper describes a protocol composition framework that
simplifies the task of deriving the event-graph from the protocol
implementation. The framework, called RTappia, takes a pragmatic
approach: instead of requiring the use of domain specific code
analysis tools, or dedicated compilers, it simply requires protocol
programmers to make explicit which events are processed and produced
by each layer, and how these events are related. The interest of the
approach is that the same data structures are used not only to
simplify the task of computing the worst case response time of the
protocol composition, but also to optimize the performance and for
debugging the resulting implementation.
Also available extended report (gzip postscript), (pdf) .
Luís Rodrigues