EuList threads: A concurrency toolbox

Many current high level languages have been designed with support for concurrency in mind, providing constructs for the programmer to build explicit parallelism into a program. TheEuLisp 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 ofEuLisp: pcall, futures, stack groups, channels, CSP and Linda.