DROL: An Object-Oriented Programming Language
for the Distributed Real-Time Systems
Authors
Kazunori Takashio and Mario Tokoro
Book Title
Proceedings of 7th ACM Conference on Object Oriented
Programming Systems, Languages, and Applications (OOPSLA'92)
Abstract
In this paper, We first characterize distributed
real-time systems by the following two properties that have to be
supported: best effort and least suffering. Then, we
propose a distributed real-time object model DRO which complies these
properties. Based on the DRO model, we design an object
oriented programming language DROL: an extension of C++ with the
capability of describing distributed real-time systems. The most
eminent feature of DROL is that users can describe on meta level the
semantics of message communications as a communication protocol with
sending and receiving primitives. With this feature, we can construct a
flexible distributed real-time system satisfying specifications which
include timing constraints. We implement a run-time system of DROL on
the ARTS kernel, and evaluate the efficiency of the prototype
implementation as well as confirm the high expressive power of the
language.