Async Rust with Tokio I/O Streams: Backpressure, Concurrency, and Ergonomics # Last updated: Oct 2025 Contents
1 Async Rust with Tokio IO Streams: Backpressure, Concurrency, and Ergonomics Backpressure Cancellation 2. I/O loop Backpressure propagation Concurrency 3. Tokio I/O Patterns TCP split stream Split generic AsyncRead+AsyncWrite stream Bidirectional driver for I/O without split Framed I/O Bidirectional driver for framed I/O There are many excellent, straightforward guides for getting started with Async Rust and Tokio. Most focus on the core building blocks: Tokio primitives, Rust futures, and concepts such as Pin/Unpin, and often finish with a simple TCP client-server sample. In fact, the typical tutorial example can usually be reduced to something as simple as:
