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#![allow(dead_code)]
extern crate alloc;
#[cfg(not(loom))]
use alloc::sync::Arc;
#[cfg(not(loom))]
use core::sync::atomic::{AtomicUsize, Ordering::SeqCst};
#[cfg(loom)]
use loom::sync::{
atomic::{AtomicUsize, Ordering::SeqCst},
Arc,
};
#[cfg(loom)]
pub mod waker;
pub fn maybe_loom_model(test: impl Fn() + Sync + Send + 'static) {
#[cfg(loom)]
loom::model(test);
#[cfg(not(loom))]
test();
}
pub struct DropCounter<T> {
drop_count: Arc<AtomicUsize>,
value: Option<T>,
}
pub struct DropCounterHandle(Arc<AtomicUsize>);
impl<T> DropCounter<T> {
pub fn new(value: T) -> (Self, DropCounterHandle) {
let drop_count = Arc::new(AtomicUsize::new(0));
(
Self {
drop_count: drop_count.clone(),
value: Some(value),
},
DropCounterHandle(drop_count),
)
}
pub fn value(&self) -> &T {
self.value.as_ref().unwrap()
}
pub fn into_value(mut self) -> T {
self.value.take().unwrap()
}
}
impl DropCounterHandle {
pub fn count(&self) -> usize {
self.0.load(SeqCst)
}
}
impl<T> Drop for DropCounter<T> {
fn drop(&mut self) {
self.drop_count.fetch_add(1, SeqCst);
}
}
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