spin-rs

This Rust library implements a simple spinlock, and is safe for #[no_std] environments.

Usage

Include the following code in your Cargo.toml

toml [dependencies.spin] version = "0.5"

Example

When calling lock on a Mutex you will get a reference to the data. When this reference is dropped, the lock will be unlocked.

```rust extern crate spin;

fn main() { let mutex = spin::Mutex::new(0); let rw_lock = spin::RwLock::new(0);

// Modify the data
{
  let mut data = mutex.lock();
  *data = 2;
  let mut data = rw_lock.write();
  *data = 3;
}

// Read the data
let answer =
{
  let data1 = mutex.lock();
  let data2 = rw_lock.read();
  let data3 = rw_lock.read(); // sharing
  (*data1, *data2, *data3)
};

println!("Answers are {:?}", answer);

} ```

To share the lock, an Arc<Mutex<T>> may be used.

Remarks

The behaviour of these lock is similar to their namesakes in std::sync. they differ on the following:

• The lock will not be poisoned in case of failure;