1 files changed, 38 insertions, 0 deletions
diff --git a/third_party/rust/tokio/src/time/driver/handle.rs b/third_party/rust/tokio/src/time/driver/handle.rs
new file mode 100644
index 0000000000..38b1761c8e
--- /dev/null
+++ b/third_party/rust/tokio/src/time/driver/handle.rs
@@ -0,0 +1,38 @@
+use crate::runtime::context;
+use crate::time::driver::Inner;
+use std::fmt;
+use std::sync::{Arc, Weak};
+
+/// Handle to time driver instance.
+#[derive(Clone)]
+pub(crate) struct Handle {
+    inner: Weak<Inner>,
+}
+
+impl Handle {
+    /// Creates a new timer `Handle` from a shared `Inner` timer state.
+    pub(crate) fn new(inner: Weak<Inner>) -> Self {
+        Handle { inner }
+    }
+
+    /// Tries to get a handle to the current timer.
+    ///
+    /// # Panics
+    ///
+    /// This function panics if there is no current timer set.
+    pub(crate) fn current() -> Self {
+        context::time_handle()
+            .expect("there is no timer running, must be called from the context of Tokio runtime")
+    }
+
+    /// Tries to return a strong ref to the inner
+    pub(crate) fn inner(&self) -> Option<Arc<Inner>> {
+        self.inner.upgrade()
+    }
+}
+
+impl fmt::Debug for Handle {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "Handle")
+    }
+}