1 files changed, 45 insertions, 0 deletions
diff --git a/third_party/rust/tokio-fs/src/metadata.rs b/third_party/rust/tokio-fs/src/metadata.rs
new file mode 100644
index 0000000000..200d58e080
--- /dev/null
+++ b/third_party/rust/tokio-fs/src/metadata.rs
@@ -0,0 +1,45 @@
+use super::blocking_io;
+
+use futures::{Future, Poll};
+
+use std::fs::{self, Metadata};
+use std::io;
+use std::path::Path;
+
+/// Queries the file system metadata for a path.
+pub fn metadata<P>(path: P) -> MetadataFuture<P>
+where
+    P: AsRef<Path> + Send + 'static,
+{
+    MetadataFuture::new(path)
+}
+
+/// Future returned by `metadata`.
+#[derive(Debug)]
+pub struct MetadataFuture<P>
+where
+    P: AsRef<Path> + Send + 'static,
+{
+    path: P,
+}
+
+impl<P> MetadataFuture<P>
+where
+    P: AsRef<Path> + Send + 'static,
+{
+    pub(crate) fn new(path: P) -> Self {
+        Self { path }
+    }
+}
+
+impl<P> Future for MetadataFuture<P>
+where
+    P: AsRef<Path> + Send + 'static,
+{
+    type Item = Metadata;
+    type Error = io::Error;
+
+    fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
+        blocking_io(|| fs::metadata(&self.path))
+    }
+}