WeChat Client Technology Team

Oct 21, 2021 · Fundamentals

Why We Built Our Own C++ Coroutine Framework and How It Boosts Development Efficiency

This article explains the motivation behind creating the C++ coroutine framework "owl" for the cross‑platform WeChat client, compares callback, promise, and coroutine approaches with code examples, and details its design choices such as stackful coroutines, single‑thread scheduling, structured concurrency, and performance characteristics.