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use crate::sync::Notify;
use loom::future::block_on;
use loom::sync::Arc;
use loom::thread;
#[test]
fn notify_one() {
loom::model(|| {
let tx = Arc::new(Notify::new());
let rx = tx.clone();
let th = thread::spawn(move || {
block_on(async {
rx.notified().await;
});
});
tx.notify_one();
th.join().unwrap();
});
}
#[test]
fn notify_waiters() {
loom::model(|| {
let notify = Arc::new(Notify::new());
let tx = notify.clone();
let notified1 = notify.notified();
let notified2 = notify.notified();
let th = thread::spawn(move || {
tx.notify_waiters();
});
block_on(async {
notified1.await;
notified2.await;
});
th.join().unwrap();
});
}
#[test]
fn notify_waiters_and_one() {
loom::model(|| {
let notify = Arc::new(Notify::new());
let tx1 = notify.clone();
let tx2 = notify.clone();
let th1 = thread::spawn(move || {
tx1.notify_waiters();
});
let th2 = thread::spawn(move || {
tx2.notify_one();
});
let th3 = thread::spawn(move || {
let notified = notify.notified();
block_on(async {
notified.await;
});
});
th1.join().unwrap();
th2.join().unwrap();
th3.join().unwrap();
});
}
#[test]
fn notify_multi() {
loom::model(|| {
let notify = Arc::new(Notify::new());
let mut ths = vec![];
for _ in 0..2 {
let notify = notify.clone();
ths.push(thread::spawn(move || {
block_on(async {
notify.notified().await;
notify.notify_one();
})
}));
}
notify.notify_one();
for th in ths.drain(..) {
th.join().unwrap();
}
block_on(async {
notify.notified().await;
});
});
}
#[test]
fn notify_drop() {
use crate::future::poll_fn;
use std::future::Future;
use std::task::Poll;
loom::model(|| {
let notify = Arc::new(Notify::new());
let rx1 = notify.clone();
let rx2 = notify.clone();
let th1 = thread::spawn(move || {
let mut recv = Box::pin(rx1.notified());
block_on(poll_fn(|cx| {
if recv.as_mut().poll(cx).is_ready() {
rx1.notify_one();
}
Poll::Ready(())
}));
});
let th2 = thread::spawn(move || {
block_on(async {
rx2.notified().await;
// Trigger second notification
rx2.notify_one();
rx2.notified().await;
});
});
notify.notify_one();
th1.join().unwrap();
th2.join().unwrap();
});
}
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