1 files changed, 41 insertions, 0 deletions
diff --git a/tokio/src/runtime/thread_pool/queue/inject.rs b/tokio/src/runtime/thread_pool/queue/inject.rs
new file mode 100644
index 00000000..f0f92fb2
--- /dev/null
+++ b/tokio/src/runtime/thread_pool/queue/inject.rs
@@ -0,0 +1,41 @@
+use crate::loom::sync::Arc;
+use crate::runtime::task::Task;
+use crate::runtime::thread_pool::queue::Cluster;
+
+pub(crate) struct Inject<T: 'static> {
+    cluster: Arc<Cluster<T>>,
+}
+
+impl<T: 'static> Inject<T> {
+    pub(super) fn new(cluster: Arc<Cluster<T>>) -> Inject<T> {
+        Inject { cluster }
+    }
+
+    /// Push a value onto the queue
+    pub(crate) fn push<F>(&self, task: Task<T>, f: F)
+    where
+        F: FnOnce(Result<(), Task<T>>),
+    {
+        self.cluster.global.push(task, f)
+    }
+
+    /// Check if the queue has been closed
+    pub(crate) fn is_closed(&self) -> bool {
+        self.cluster.global.is_closed()
+    }
+
+    /// Close the queue
+    ///
+    /// Returns `true` if the channel was closed. `false` indicates the pool was
+    /// previously closed.
+    pub(crate) fn close(&self) -> bool {
+        self.cluster.global.close()
+    }
+
+    /// Wait for all locks on the queue to drop.
+    ///
+    /// This is done by locking w/o doing anything.
+    pub(crate) fn wait_for_unlocked(&self) {
+        self.cluster.global.wait_for_unlocked();
+    }
+}