On the implementation of CC++

This paper presents a proposal for introducing concurrency to a sequential object-oriented programming language-C++, and discusses its implementation. The proposed language is called CC++. It distinguishes two categories of objects: process objects and class objects. Process objects are coarse-grain concurrent entities. Each process object has its own sequential control thread and an optional public interface accessible by other process objects. A set of process objects is synchronized and coordinated by a Remote Function Call (RFC) mechanism. Indeterministic RFC´s are selected or sequenced by guarded function declarations. Important objectives of this design are simple syntax, clear semantics and strong expressive power. An experimental CC++ has been developed on a network of SUN workstations. This version consists of a preprocessor and a run-time system. The preprocessor translates a CC++ program into a C++ counterpart. The run-time system includes a process scheduler based on context-switch technique and an Inter-Process Communication (IPC) kernel