A Distributed Real-Time Java System Based on CSP

CSP is a fundamental concept for developing software for distributed real-time systems. The CSP paradigm constitutes a natural addition to Object Orientation and offers higher-order multithreading constructs. The CSP channel concept that has been implemented in Java deals with singleand multi-processor environments and also takes care of the real-time priority scheduling requirements. For this, the notion of priority and scheduling has been carefully examined and as a result it was reasoned that priority scheduling should be attached to the communicating channels rather than to the processes. In association with channels, a priority based parallel construct is developed for composing processes – hiding threads and priority indexing from the user. This approach simplifies the use of priorities for the objectoriented paradigm. Moreover, in the proposed system, the notion of scheduling is no longer connected to the operating system but has become part of the application instead.