shared-lock

The shared-lock crate provides a re-entrant lock that can be used to lock multiple disconnected objects such as in the following example:

struct Context {
    lock: Lock,
    data1: Locked<Cell<u32>>,
}

struct Child {
    context: Arc<Context>,
    data2: Locked<Cell<u32>>,
}

Both objects in this example implement Sync because Locked<T>: Sync if T: Send.

After the lock has been locked once in a thread, locking it again is about as expensive as cloning an Rc and accessing the locked fields is essentially free.

Safety

This crate has 100% test coverage generated through mutation testing and all tests are run through miri.

MSRV

The MSRV is max(1.85, stable - 3).

License

This project is licensed under either of

• Apache License, Version 2.0
• MIT License

at your option.