Tokio

11 pages in this section.

How Tokio schedules tasks on top of the `Future` trait, why async tasks are cooperative rather than preemptive, and how Tokio's I/O driver fits the same reactor pattern used by libuv and similar event loops.

Explainer Rust Tokio Runtime

Tokio Basics

The runtime, `#[tokio::main]`, and spawning tasks.

Rust Tokio Basics

Tasks & JoinHandles

Spawning, awaiting, and task lifecycles.

Rust Tokio Tasks Joinhandle

Async I/O

TCP/UDP, files, and buffered I/O.

Rust Tokio Io Networking

Channels in Tokio

`mpsc`, `oneshot`, `broadcast`, and `watch`.

Rust Tokio Channels Mpsc

select! & Concurrency

Racing tasks and coordinating work.

Rust Tokio Select Concurrency

Timers & Intervals

Delays, timeouts, and scheduling.

Rust Tokio Timers Intervals

Shared State in Async

Rust Tokio Shared State Arc

Tracing & Instrumentation

Rust Tokio Tracing Observability

Graceful Shutdown

Rust Tokio Graceful Shutdown

Tokio Best Practices

Runtime tuning and avoiding starvation.

Rust Tokio Best Practices List

Tokio

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Tokio