Adding upstream version 110.0.1.upstream/110.0.1upstream

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

1 files changed, 30 insertions, 0 deletions

diff --git a/third_party/rust/tokio-threadpool/src/callback.rs b/third_party/rust/tokio-threadpool/src/callback.rs
new file mode 100644
index 0000000000..4fea4cac8e
--- /dev/null
+++ b/third_party/rust/tokio-threadpool/src/callback.rs
@@ -0,0 +1,30 @@
+use worker::Worker;
+
+use std::fmt;
+use std::sync::Arc;
+
+use tokio_executor::Enter;
+
+#[derive(Clone)]
+pub(crate) struct Callback {
+    f: Arc<dyn Fn(&Worker, &mut Enter) + Send + Sync>,
+}
+
+impl Callback {
+    pub fn new<F>(f: F) -> Self
+    where
+        F: Fn(&Worker, &mut Enter) + Send + Sync + 'static,
+    {
+        Callback { f: Arc::new(f) }
+    }
+
+    pub fn call(&self, worker: &Worker, enter: &mut Enter) {
+        (self.f)(worker, enter)
+    }
+}
+
+impl fmt::Debug for Callback {
+    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+        write!(fmt, "Fn")
+    }
+}