1 files changed, 63 insertions, 0 deletions
diff --git a/third_party/rust/mio/src/deprecated/notify.rs b/third_party/rust/mio/src/deprecated/notify.rs
new file mode 100644
index 0000000000..c8432d6b0e
--- /dev/null
+++ b/third_party/rust/mio/src/deprecated/notify.rs
@@ -0,0 +1,63 @@
+use {channel};
+use std::{fmt, io, error, any};
+
+pub enum NotifyError<T> {
+    Io(io::Error),
+    Full(T),
+    Closed(Option<T>),
+}
+
+impl<M> fmt::Debug for NotifyError<M> {
+    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+        match *self {
+            NotifyError::Io(ref e) => {
+                write!(fmt, "NotifyError::Io({:?})", e)
+            }
+            NotifyError::Full(..) => {
+                write!(fmt, "NotifyError::Full(..)")
+            }
+            NotifyError::Closed(..) => {
+                write!(fmt, "NotifyError::Closed(..)")
+            }
+        }
+    }
+}
+
+impl<M> fmt::Display for NotifyError<M> {
+    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+        match *self {
+            NotifyError::Io(ref e) => {
+                write!(fmt, "IO error: {}", e)
+            }
+            NotifyError::Full(..) => write!(fmt, "Full"),
+            NotifyError::Closed(..) => write!(fmt, "Closed")
+        }
+    }
+}
+
+impl<M: any::Any> error::Error for NotifyError<M> {
+    fn description(&self) -> &str {
+        match *self {
+            NotifyError::Io(ref err) => err.description(),
+            NotifyError::Closed(..) => "The receiving end has hung up",
+            NotifyError::Full(..) => "Queue is full"
+        }
+    }
+
+    fn cause(&self) -> Option<&error::Error> {
+        match *self {
+            NotifyError::Io(ref err) => Some(err),
+            _ => None
+        }
+    }
+}
+
+impl<M> From<channel::TrySendError<M>> for NotifyError<M> {
+    fn from(src: channel::TrySendError<M>) -> NotifyError<M> {
+        match src {
+            channel::TrySendError::Io(e) => NotifyError::Io(e),
+            channel::TrySendError::Full(v) => NotifyError::Full(v),
+            channel::TrySendError::Disconnected(v) => NotifyError::Closed(Some(v)),
+        }
+    }
+}