Add debug asserts to futex ReentrantMutex impl.

rust-lang · Apr 7, 2022 · aeb01c3 · aeb01c3
1 parent dc82718
commit aeb01c3
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/library/std/src/sys/unix/locks/futex.rs b/library/std/src/sys/unix/locks/futex.rs
@@ -215,6 +215,7 @@ impl ReentrantMutex {
  true
  } else if self.mutex.try_lock() {
  self.owner.store(this_thread, Relaxed);
+ debug_assert_eq!(*self.lock_count.get(), 0);
  *self.lock_count.get() = 1;
  true
  } else {
@@ -229,6 +230,7 @@ impl ReentrantMutex {
  } else {
  self.mutex.lock();
  self.owner.store(this_thread, Relaxed);
+ debug_assert_eq!(*self.lock_count.get(), 0);
  *self.lock_count.get() = 1;
  }
  }