use std::sync::atomic;
pub use std::sync::atomic::{Ordering, fence};
pub struct AtomicUsize(atomic::AtomicUsize);
pub use self::AtomicUsize as AtomicU8;
pub const ATOMIC_USIZE_INIT: AtomicUsize = AtomicUsize(atomic::ATOMIC_USIZE_INIT);
pub use self::ATOMIC_USIZE_INIT as ATOMIC_U8_INIT;
impl AtomicUsize {
#[inline]
pub fn new(val: usize) -> AtomicUsize {
AtomicUsize(atomic::AtomicUsize::new(val))
}
#[inline]
pub fn load(&self, order: Ordering) -> usize {
self.0.load(order)
}
#[inline]
pub fn store(&self, val: usize, order: Ordering) {
self.0.store(val, order);
}
#[inline]
pub fn swap(&self, val: usize, order: Ordering) -> usize {
self.0.swap(val, order)
}
#[inline]
pub fn fetch_add(&self, val: usize, order: Ordering) -> usize {
self.0.fetch_add(val, order)
}
#[inline]
pub fn fetch_sub(&self, val: usize, order: Ordering) -> usize {
self.0.fetch_sub(val, order)
}
#[inline]
pub fn fetch_and(&self, val: usize, order: Ordering) -> usize {
self.0.fetch_and(val, order)
}
#[inline]
pub fn compare_exchange(&self,
old: usize,
new: usize,
order: Ordering,
_: Ordering)
-> Result<usize, usize> {
let res = self.0.compare_and_swap(old, new, order);
if res == old {
Ok(res)
} else {
Err(res)
}
}
#[inline]
pub fn compare_exchange_weak(&self,
old: usize,
new: usize,
order: Ordering,
_: Ordering)
-> Result<usize, usize> {
let res = self.0.compare_and_swap(old, new, order);
if res == old {
Ok(res)
} else {
Err(res)
}
}
}