1 files changed, 52 insertions, 0 deletions
diff --git a/third_party/rust/tokio/src/loom/mocked.rs b/third_party/rust/tokio/src/loom/mocked.rs
new file mode 100644
index 0000000000..56dc1a0634
--- /dev/null
+++ b/third_party/rust/tokio/src/loom/mocked.rs
@@ -0,0 +1,52 @@
+pub(crate) use loom::*;
+
+pub(crate) mod sync {
+
+    pub(crate) use loom::sync::MutexGuard;
+
+    #[derive(Debug)]
+    pub(crate) struct Mutex<T>(loom::sync::Mutex<T>);
+
+    #[allow(dead_code)]
+    impl<T> Mutex<T> {
+        #[inline]
+        pub(crate) fn new(t: T) -> Mutex<T> {
+            Mutex(loom::sync::Mutex::new(t))
+        }
+
+        #[inline]
+        pub(crate) fn lock(&self) -> MutexGuard<'_, T> {
+            self.0.lock().unwrap()
+        }
+
+        #[inline]
+        pub(crate) fn try_lock(&self) -> Option<MutexGuard<'_, T>> {
+            self.0.try_lock().ok()
+        }
+    }
+    pub(crate) use loom::sync::*;
+
+    pub(crate) mod atomic {
+        pub(crate) use loom::sync::atomic::*;
+
+        // TODO: implement a loom version
+        pub(crate) type StaticAtomicU64 = std::sync::atomic::AtomicU64;
+    }
+}
+
+pub(crate) mod rand {
+    pub(crate) fn seed() -> u64 {
+        1
+    }
+}
+
+pub(crate) mod sys {
+    pub(crate) fn num_cpus() -> usize {
+        2
+    }
+}
+
+pub(crate) mod thread {
+    pub use loom::lazy_static::AccessError;
+    pub use loom::thread::*;
+}