vendor/parking_lot/tests/issue_203.rs

   1 use parking_lot::RwLock;
   2 use std::thread;
   3
   4 struct Bar(RwLock<()>);
   5
   6 impl Drop for Bar {
   7     fn drop(&mut self) {
   8         let _n = self.0.write();
   9     }
  10 }
  11
  12 thread_local! {
  13     static B: Bar = Bar(RwLock::new(()));
  14 }
  15
  16 #[test]
  17 fn main() {
  18     thread::spawn(|| {
  19         B.with(|_| ());
  20
  21         let a = RwLock::new(());
  22         let _a = a.read();
  23     })
  24     .join()
  25     .unwrap();
  26 }