Update Tokio to the latest LTS release v1.32.0 am: 26142af839

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/tokio/+/2815234

Change-Id: I63172610b8f3055b9ef75fd63391892a121d01d9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

1 files changed, 76 insertions, 0 deletions

diff --git a/src/runtime/dump.rs b/src/runtime/dump.rs
new file mode 100644
index 0000000..994b7f9
--- /dev/null
+++ b/src/runtime/dump.rs
@@ -0,0 +1,76 @@
+//! Snapshots of runtime state.
+//!
+//! See [Handle::dump][crate::runtime::Handle::dump].
+
+use std::fmt;
+
+/// A snapshot of a runtime's state.
+///
+/// See [Handle::dump][crate::runtime::Handle::dump].
+#[derive(Debug)]
+pub struct Dump {
+    tasks: Tasks,
+}
+
+/// Snapshots of tasks.
+///
+/// See [Handle::dump][crate::runtime::Handle::dump].
+#[derive(Debug)]
+pub struct Tasks {
+    tasks: Vec<Task>,
+}
+
+/// A snapshot of a task.
+///
+/// See [Handle::dump][crate::runtime::Handle::dump].
+#[derive(Debug)]
+pub struct Task {
+    trace: Trace,
+}
+
+/// An execution trace of a task's last poll.
+///
+/// See [Handle::dump][crate::runtime::Handle::dump].
+#[derive(Debug)]
+pub struct Trace {
+    inner: super::task::trace::Trace,
+}
+
+impl Dump {
+    pub(crate) fn new(tasks: Vec<Task>) -> Self {
+        Self {
+            tasks: Tasks { tasks },
+        }
+    }
+
+    /// Tasks in this snapshot.
+    pub fn tasks(&self) -> &Tasks {
+        &self.tasks
+    }
+}
+
+impl Tasks {
+    /// Iterate over tasks.
+    pub fn iter(&self) -> impl Iterator<Item = &Task> {
+        self.tasks.iter()
+    }
+}
+
+impl Task {
+    pub(crate) fn new(trace: super::task::trace::Trace) -> Self {
+        Self {
+            trace: Trace { inner: trace },
+        }
+    }
+
+    /// A trace of this task's state.
+    pub fn trace(&self) -> &Trace {
+        &self.trace
+    }
+}
+
+impl fmt::Display for Trace {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        self.inner.fmt(f)
+    }
+}