#server #http #http-server #hash-map #may

co_managed

Create managed sub coroutines. Managed sub coroutines will be cancelled when the parent exit

1 unstable release

0.1.0 Feb 28, 2024

#682 in Asynchronous

21 downloads per month
Used in may_rpc

MIT/Apache

10KB
128 lines

co_managed

This lib could create managed sub coroutines.

Managed sub coroutines will be cancelled when their parent exit. This is something like the scoped coroutine creation, the difference is that we manage the sub coroutines in a hash map, so that when sub coroutine exit the entry will be removed dynamically and parent doesn't wait it's children exit.

Build Status Current Crates.io Version Document

Usage

First, add this to your Cargo.toml:

[dependencies]
co_managed = "0.1"

Then just simply implement your http service

use may::{go, coroutine};
use co_managed::Manager;
use std::time::Duration;
fn main() {
    let j = go!(|| {
        println!("parent started");
        let manager = Manager::new();
        struct Dummy(usize);
        impl Drop for Dummy {
            fn drop(&mut self) {
                println!("co dropped, id={}", self.0);
            }
        }
        for i in 0..10 {
            manager.add(move |_| {
                let d = Dummy(i);
                println!("sub started, id = {}", d.0);
                loop {
                    coroutine::sleep(Duration::from_millis(10));
                }
            });
        }
        coroutine::park();
    });

    coroutine::sleep(Duration::from_millis(100));
    unsafe { j.coroutine().cancel() };
    j.join().ok();
    println!("parent exit");
    coroutine::sleep(Duration::from_millis(1000));
}

License

This project is licensed under either of the following, at your option:

Dependencies

~3–29MB
~427K SLoC