Crate async_std

[−] Expand description

Async version of the Rust standard library.

Modules in this crate are organized in the same way as in the standard library, except blocking functions have been replaced with async functions and threads have been replaced with lightweight tasks.

More information, reading materials, and other resources:

• 🌐 The async-std website
• 📖 The async-std book
• 🐙 GitHub repository
• 📒 List of code examples
• 💬 Discord chat

Examples

Spawn a task and block the current thread on its result:

use async_std::task;

fn main() {
    task::block_on(async {
        println!("Hello, world!");
    })
}

Features

Unstable APIs in this crate are available when the unstable Cargo feature is enabled:

[dependencies.async-std]
version = "0.99"
features = ["unstable"]

Modules

fs	Filesystem manipulation operations.
future	Asynchronous values.
io	Basic input and output.
net	Networking primitives for TCP/UDP communication.
os	OS-specific extensions.
pin	Types that pin data to its location in memory.
prelude	The async prelude.
stream	Asynchronous iteration.
sync	Synchronization primitives.
task	Asynchronous tasks.

Macros

task_local

Declares task-local values.