Introduction

This chapter is all about tasks. We'll be calling the functional object a task because it is shorter and better reflects what it will do. The main idea of this chapter is that we can split all the processing, computations, and interactions to functors (tasks), and process each of those tasks almost independently. Moreover, we may not block on some slow operations such as receiving data from the socket or waiting for the time out, but instead provide a callback task and continue working with other tasks. Once the OS finishes, the slow operation, our callback is executed.

The best way to understand the example is to play with it by modifying, running, and extending it. The site, http://apolukhin.github.io/Boost-Cookbook/, has all the examples from this chapter, and you can even play with some of them online.

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