1 files changed, 70 insertions, 0 deletions
diff --git a/third_party/rust/mio/src/sys/shell/mod.rs b/third_party/rust/mio/src/sys/shell/mod.rs
new file mode 100644
index 0000000000..7e1533f452
--- /dev/null
+++ b/third_party/rust/mio/src/sys/shell/mod.rs
@@ -0,0 +1,70 @@
+macro_rules! os_required {
+    () => {
+        panic!("mio must be compiled with `os-poll` to run.")
+    };
+}
+
+mod selector;
+pub(crate) use self::selector::{event, Event, Events, Selector};
+
+mod waker;
+pub(crate) use self::waker::Waker;
+
+cfg_net! {
+    pub(crate) mod tcp;
+    pub(crate) mod udp;
+    #[cfg(unix)]
+    pub(crate) mod uds;
+}
+
+cfg_io_source! {
+    use std::io;
+    #[cfg(windows)]
+    use std::os::windows::io::RawSocket;
+
+    #[cfg(windows)]
+    use crate::{Registry, Token, Interest};
+
+    pub(crate) struct IoSourceState;
+
+    impl IoSourceState {
+        pub fn new() -> IoSourceState {
+            IoSourceState
+        }
+
+        pub fn do_io<T, F, R>(&self, f: F, io: &T) -> io::Result<R>
+        where
+            F: FnOnce(&T) -> io::Result<R>,
+        {
+            // We don't hold state, so we can just call the function and
+            // return.
+            f(io)
+        }
+    }
+
+    #[cfg(windows)]
+    impl IoSourceState {
+         pub fn register(
+            &mut self,
+            _: &Registry,
+            _: Token,
+            _: Interest,
+            _: RawSocket,
+        ) -> io::Result<()> {
+            os_required!()
+        }
+
+        pub fn reregister(
+            &mut self,
+            _: &Registry,
+            _: Token,
+            _: Interest,
+        ) -> io::Result<()> {
+           os_required!()
+        }
+
+        pub fn deregister(&mut self) -> io::Result<()> {
+            os_required!()
+        }
+    }
+}