1 files changed, 43 insertions, 0 deletions
diff --git a/third_party/rust/tokio/src/runtime/metrics/mock.rs b/third_party/rust/tokio/src/runtime/metrics/mock.rs
new file mode 100644
index 0000000000..6b9cf704f4
--- /dev/null
+++ b/third_party/rust/tokio/src/runtime/metrics/mock.rs
@@ -0,0 +1,43 @@
+//! This file contains mocks of the types in src/runtime/metrics
+
+pub(crate) struct SchedulerMetrics {}
+
+pub(crate) struct WorkerMetrics {}
+
+pub(crate) struct MetricsBatch {}
+
+impl SchedulerMetrics {
+    pub(crate) fn new() -> Self {
+        Self {}
+    }
+
+    /// Increment the number of tasks scheduled externally
+    pub(crate) fn inc_remote_schedule_count(&self) {}
+}
+
+impl WorkerMetrics {
+    pub(crate) fn new() -> Self {
+        Self {}
+    }
+
+    pub(crate) fn set_queue_depth(&self, _len: usize) {}
+}
+
+impl MetricsBatch {
+    pub(crate) fn new() -> Self {
+        Self {}
+    }
+
+    pub(crate) fn submit(&mut self, _to: &WorkerMetrics) {}
+    pub(crate) fn about_to_park(&mut self) {}
+    pub(crate) fn returned_from_park(&mut self) {}
+    pub(crate) fn incr_poll_count(&mut self) {}
+    pub(crate) fn inc_local_schedule_count(&mut self) {}
+}
+
+cfg_rt_multi_thread! {
+    impl MetricsBatch {
+        pub(crate) fn incr_steal_count(&mut self, _by: u16) {}
+        pub(crate) fn incr_overflow_count(&mut self) {}
+    }
+}