Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/third_party/rust/tokio/src/runtime/blocking/schedule.rs b/third_party/rust/tokio/src/runtime/blocking/schedule.rs
new file mode 100644
index 0000000000..e10778d530
--- /dev/null
+++ b/third_party/rust/tokio/src/runtime/blocking/schedule.rs
@@ -0,0 +1,24 @@
+use crate::runtime::task::{self, Task};
+
+/// `task::Schedule` implementation that does nothing. This is unique to the
+/// blocking scheduler as tasks scheduled are not really futures but blocking
+/// operations.
+///
+/// We avoid storing the task by forgetting it in `bind` and re-materializing it
+/// in `release.
+pub(super) struct NoopSchedule;
+
+impl task::Schedule for NoopSchedule {
+    fn bind(_task: Task<Self>) -> NoopSchedule {
+        // Do nothing w/ the task
+        NoopSchedule
+    }
+
+    fn release(&self, _task: &Task<Self>) -> Option<Task<Self>> {
+        None
+    }
+
+    fn schedule(&self, _task: task::Notified<Self>) {
+        unreachable!();
+    }
+}