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wry/crates/utils/src/atomic_enum.rs

42 lines
818 B
Rust

use {
linearize::Linearize,
std::{
marker::PhantomData,
sync::atomic::{AtomicUsize, Ordering},
},
};
pub struct AtomicEnum<T> {
v: AtomicUsize,
_phantom: PhantomData<T>,
}
impl<T> Default for AtomicEnum<T>
where
T: Default + Linearize + Copy,
{
fn default() -> Self {
Self::new(T::default())
}
}
impl<T> AtomicEnum<T>
where
T: Linearize + Copy,
{
pub fn new(t: T) -> Self {
Self {
v: AtomicUsize::new(t.linearize()),
_phantom: Default::default(),
}
}
#[allow(dead_code)]
pub fn load(&self, ordering: Ordering) -> T {
unsafe { T::from_linear_unchecked(self.v.load(ordering)) }
}
pub fn store(&self, t: T, ordering: Ordering) {
self.v.store(t.linearize(), ordering);
}
}