Struct locker::AsyncLocker

pub struct AsyncLocker<K> { /* fields omitted */ }

Methods

impl<K: Eq + Hash> AsyncLocker<K>

pub fn new() -> Self

pub async fn get_mutex<'_>(&'_ self, key: K) -> Arc<Mutex<()>>

Return reference to existig Mutex or insert new one.

Locks the current task until it is able to return Mutex.

Examples

use std::time::Duration;
use locker::AsyncLocker;
use tokio::time::delay_for;

let locker = Locker::new();
let mutex = locker.get_mutex(1).await;
let _guard = mutex.lock().await; // lock
let locker_clone = locker.clone();
tokio::spawn(async move {
    let mutex = locker.get_mutex(1).await;
    let _guard = mutex.lock().await; // wait
});
delay_for(Duration::from_millis(200)).await;

Trait Implementations

impl<K: Clone> Clone for AsyncLocker<K>

fn clone(&self) -> AsyncLocker<K>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.