Clojure Data Structures and Algorithms Cookbook

Chapter 6. Sharing by Communicating

Some problems, like those involving waiting on I/O or randomly waiting for user input, tend to be very well addressed using asynchronous programming. Asynchronous programming is a paradigm where algorithms are devised in terms of independent mini-processes that are executed concurrently and which are not synchronized using any form of locking. Those processes do share resources but are instead able to communicate through some conveyor-belt like structures called channels. In this chapter, we are going to see asynchronous programming in action using core.async, an implementation of this paradigm in Clojure, while developing the following recipes:

• Building a tiny web crawler
• Designing an HTML5 game
• Designing an online ...