An arbitrary type atomic storage with swap operations.
This is guaranteed lock-free where atomics will be guaranteed lock-free, however it is not guaranteed wait free. Some operations may spin for a short time. All values will be properly dropped.
use atomic_swapping::option::AtomicSwapOption;
fn main() {
let swap = AtomicSwapOption::new(Some(100usize));
assert_eq!(swap.clone_inner(), Some(100usize));
assert_eq!(swap.take(), Some(100usize));
assert_eq!(swap.take(), None);
swap.set(Some(200usize));
assert_eq!(swap.swap(Some(300usize)), Some(200usize));
assert!(swap.contains_value());
assert_eq!(swap.clone_inner(), Some(300usize));
}Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.