key-rwlock

Simple library for keyed asynchronous reader-writer locks.

Example

```rust use key_rwlock::KeyRwLock;

[tokio::main]

async fn main() { let lock = KeyRwLock::new();

let _foo = lock.write("foo").await;
let _bar = lock.read("bar").await;

assert!(lock.try_read("foo").await.is_err());
assert!(lock.try_write("foo").await.is_err());

assert!(lock.try_read("bar").await.is_ok());
assert!(lock.try_write("bar").await.is_err());

} ```