EULISP Threads: A Concurrency Toolbox

Many current high level languages have been designed with support for con-currency in mind, providing constructs for the programmer to build explicit parallelism into a program. The EuLisp threads mechanism, in conjunction with locks, and a generic event waiting operation provides a set of primitive tools with which such concurrency abstractions can be constructed. The object system (TELOS) provides a powerful approach to building and controlling these abstractions. We provide a synopsis of this`concurrency toolbox', and demonstrate the construction of a number of established abstractions using the facilities of EuLisp: pcall, futures, stack groups, channels, CSP and Linda.