Explore stackful coroutine-based asynchronous programming in Rust through this RustCon Asia 2019 conference talk by Huang Xudong, author of the May framework. Dive into the design and implementation of stackful generators and coroutines, covering fundamental concepts, coroutine scheduling, IO systems, sync preemptive systems, and cancellation mechanisms. Compare this approach with future-based systems and learn about key features such as context detection, yield with parameters, and semantic blocking. Discover how coroutines differ from generators, understand the blocker concept in sync primitives, and gain insights into coroutine cancellation techniques.