src/tools/miri/tests/fail/concurrency/windows_join_self.rs

   1 //@only-target-windows: Uses win32 api functions
   2 // We are making scheduler assumptions here.
   3 //@compile-flags: -Zmiri-preemption-rate=0
   4
   5 // On windows, a thread joining itself is not UB, but it will deadlock.
   6
   7 use std::thread;
   8
   9 extern "system" {
  10     fn GetCurrentThread() -> usize;
  11     fn WaitForSingleObject(handle: usize, timeout: u32) -> u32;
  12 }
  13
  14 const INFINITE: u32 = u32::MAX;
  15
  16 fn main() {
  17     thread::spawn(|| {
  18         unsafe {
  19             let native = GetCurrentThread();
  20             assert_eq!(WaitForSingleObject(native, INFINITE), 0); //~ ERROR: deadlock: the evaluated program deadlocked
  21         }
  22     })
  23     .join()
  24     .unwrap();
  25 }