lelet 1.0.20

golang like task executor
lelet-1.0.20 has been yanked.

Lelet executor

Task executor that inspired by golang runtime.

The executor is running in thread pool, and when it detect blocking call inside a task, it will automatically scale the thread pool.

Because of this feature, it is always safe for you to do blocking operation in a task, you don't need to worry about blocking the entire executor thread.

And like go in golang, spawn does not return task handle, if you need synchronization, you can use futures-channel or std channel


With cargo add installed run:

$ cargo add lelet


use std::thread;
use std::time::Duration;

use futures_timer::Delay;

fn main() {
    lelet::spawn(async {
        for _ in 0..10 {
            println!("Non-blocking Hello World");

    lelet::spawn(async {
        for _ in 0..10 {
            println!("Blocking Hello World");