diff options
Diffstat (limited to 'tests/lock_mutex.rs')
| -rw-r--r-- | tests/lock_mutex.rs | 50 |
1 files changed, 26 insertions, 24 deletions
diff --git a/tests/lock_mutex.rs b/tests/lock_mutex.rs index c92ef50..c15e76b 100644 --- a/tests/lock_mutex.rs +++ b/tests/lock_mutex.rs @@ -34,34 +34,36 @@ fn mutex_wakes_waiters() { assert!(waiter.poll_unpin(&mut panic_context()).is_ready()); } -#[cfg_attr(miri, ignore)] // https://github.com/rust-lang/miri/issues/1038 #[test] fn mutex_contested() { - let (tx, mut rx) = mpsc::unbounded(); - let pool = ThreadPool::builder().pool_size(16).create().unwrap(); + { + let (tx, mut rx) = mpsc::unbounded(); + let pool = ThreadPool::builder().pool_size(16).create().unwrap(); - let tx = Arc::new(tx); - let mutex = Arc::new(Mutex::new(0)); + let tx = Arc::new(tx); + let mutex = Arc::new(Mutex::new(0)); - let num_tasks = 1000; - for _ in 0..num_tasks { - let tx = tx.clone(); - let mutex = mutex.clone(); - pool.spawn(async move { - let mut lock = mutex.lock().await; - ready(()).pending_once().await; - *lock += 1; - tx.unbounded_send(()).unwrap(); - drop(lock); - }) - .unwrap(); - } - - block_on(async { + let num_tasks = 1000; for _ in 0..num_tasks { - rx.next().await.unwrap(); + let tx = tx.clone(); + let mutex = mutex.clone(); + pool.spawn(async move { + let mut lock = mutex.lock().await; + ready(()).pending_once().await; + *lock += 1; + tx.unbounded_send(()).unwrap(); + drop(lock); + }) + .unwrap(); } - let lock = mutex.lock().await; - assert_eq!(num_tasks, *lock); - }) + + block_on(async { + for _ in 0..num_tasks { + rx.next().await.unwrap(); + } + let lock = mutex.lock().await; + assert_eq!(num_tasks, *lock); + }); + } + std::thread::sleep(std::time::Duration::from_millis(500)); // wait for background threads closed: https://github.com/rust-lang/miri/issues/1371 } |