Module runtime

Runtime compatibility layer

Modules

fs

Asynchronous file utilities.

io

Traits, helpers, and type definitions for asynchronous I/O functionality.

net

TCP/UDP/Unix bindings for tokio.

process

An implementation of asynchronous process management for Tokio.

runtime

The Tokio runtime.

signal

Asynchronous signal handling for Tokio.

stream

Due to the Stream trait’s inclusion in std landing later than Tokio’s 1.0 release, most of the Tokio stream utilities have been moved into the tokio-stream crate.

sync

Synchronization primitives for use in asynchronous contexts.

task

Asynchronous green-threads.

time

Utilities for tracking time.

Macros

join

Waits on multiple concurrent branches, returning when all branches complete.

pin

Pins a value on the stack.

select

Waits on multiple concurrent branches, returning when the first branch completes, cancelling the remaining branches.

task_local

Declares a new task-local key of type tokio::task::LocalKey.

try_join

Waits on multiple concurrent branches, returning when all branches complete with Ok(_) or on the first Err(_).

Functions

spawn

Spawns a new asynchronous task, returning a JoinHandle for it.

Type Aliases

Handle

Runtime

Attribute Macros

main

Marks async function to be executed by the selected runtime. This macro helps set up a Runtime without requiring the user to use Runtime or Builder directly.

test

Marks async function to be executed by runtime, suitable to test environment. This macro helps set up a Runtime without requiring the user to use Runtime or Builder directly.