How to Use C++20 Coroutines for Networking

11:00 - 12:30 Friday 8th April 2022 BST

Beginner

Intermediate

Advanced

This talk shows how to write an event-driven 'chat' program using C20 coroutines. Coroutines improve the process of writing event-driven code and this talk provides a worked example of how to do so. Practical strategies for how to design, debug and reason about such architectures are given. The talk opens by introducing a familiar callback version of 'chat' that is based on Boost.Asio. The talk then shows how the same application can be coded using C20 coroutines. The performance of the two approaches is compared empirically and a number of observations are made.