1 files changed, 72 insertions, 0 deletions
diff --git a/third_party/rust/mio/src/sys/unix/mod.rs b/third_party/rust/mio/src/sys/unix/mod.rs
new file mode 100644
index 0000000000..231480a5da
--- /dev/null
+++ b/third_party/rust/mio/src/sys/unix/mod.rs
@@ -0,0 +1,72 @@
+/// Helper macro to execute a system call that returns an `io::Result`.
+//
+// Macro must be defined before any modules that uses them.
+#[allow(unused_macros)]
+macro_rules! syscall {
+    ($fn: ident ( $($arg: expr),* $(,)* ) ) => {{
+        let res = unsafe { libc::$fn($($arg, )*) };
+        if res == -1 {
+            Err(std::io::Error::last_os_error())
+        } else {
+            Ok(res)
+        }
+    }};
+}
+
+cfg_os_poll! {
+    mod selector;
+    pub(crate) use self::selector::{event, Event, Events, Selector};
+
+    mod sourcefd;
+    pub use self::sourcefd::SourceFd;
+
+    mod waker;
+    pub(crate) use self::waker::Waker;
+
+    cfg_net! {
+        mod net;
+
+        pub(crate) mod tcp;
+        pub(crate) mod udp;
+        pub(crate) mod uds;
+        pub use self::uds::SocketAddr;
+    }
+
+    cfg_io_source! {
+        use std::io;
+
+        // Both `kqueue` and `epoll` don't need to hold any user space state.
+        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_os_ext! {
+        pub(crate) mod pipe;
+    }
+}
+
+cfg_not_os_poll! {
+    cfg_net! {
+        mod uds;
+        pub use self::uds::SocketAddr;
+    }
+
+    cfg_any_os_ext! {
+        mod sourcefd;
+        pub use self::sourcefd::SourceFd;
+    }
+}