| 27 | } |
| 28 | |
| 29 | fn std_deadlock_wait() { |
| 30 | use std::sync::{Condvar, Mutex}; |
| 31 | let mu1 = Arc::new(Mutex::new(1)); |
| 32 | let mu2 = mu1.clone(); |
| 33 | |
| 34 | let pair1 = Arc::new((Mutex::new(false), Condvar::new())); |
| 35 | let pair2 = pair1.clone(); |
| 36 | |
| 37 | let th1 = thread::spawn(move || { |
| 38 | let _i = mu1.lock().unwrap(); |
| 39 | let (lock, cvar) = &*pair1; |
| 40 | let mut started = lock.lock().unwrap(); |
| 41 | while !*started { |
| 42 | started = cvar.wait(started).unwrap(); |
| 43 | } |
| 44 | }); |
| 45 | |
| 46 | let th2 = thread::spawn(move || { |
| 47 | let _i = mu2.lock().unwrap(); |
| 48 | let (lock, cvar) = &*pair2; |
| 49 | let mut started = lock.lock().unwrap(); |
| 50 | *started = true; |
| 51 | cvar.notify_one(); |
| 52 | }); |
| 53 | |
| 54 | th1.join().unwrap(); |
| 55 | th2.join().unwrap(); |
| 56 | } |
| 57 | |
| 58 | fn std_missing_lock_before_notify() { |
| 59 | use std::sync::{Condvar, Mutex}; |