+impl<'a, T: 'a> LockTestExt<'a> for RwLock<T> {
+ #[inline]
+ fn held_by_thread(&self) -> LockHeldState {
+ if self.write().is_err() { return LockHeldState::HeldByThread; }
+ else { return LockHeldState::NotHeldByThread; }
+ }
+ type ExclLock = RwLockWriteGuard<'a, T>;
+ #[inline]
+ fn unsafe_well_ordered_double_lock_self(&'a self) -> RwLockWriteGuard<T> { self.write().unwrap() }
+}
+