#future #rwlock #mutex #async

gothack-future-parking_lot

An "as simple as possible" Future implementation for parking_lot

1 unstable release

0.3.4 May 9, 2022

#1147 in Concurrency

Apache-2.0/MIT

31KB
729 lines

future-parking_lot

This is an "as simple as possible" Future implementation for parking_lot. Thanks to async/await feature, now it works directly on Mutex<T> and RwLock<T>.

Example:

use std::sync::Arc;

use parking_lot::RwLock;

use future_parking_lot::rwlock::{FutureReadable, FutureWriteable};

use lazy_static::lazy_static;

lazy_static! {
    static ref LOCK: Arc<RwLock<Vec<String>>> = Arc::new(RwLock::new(Vec::new()));
}

#[tokio::main]
async fn main() -> Result<(), ()> {
    {
        let mut v = LOCK.future_write().await;
        v.push(String::from("It works!"));
    }

    let v = LOCK.future_read().await;
    assert!(v.len() == 1 && v[0] == "It works!");

    Ok(())
}

lib.rs:

future-parking_lot

A simple Future implementation for parking_lot

Dependencies

~0.5–5MB
~14K SLoC