1 files changed, 174 insertions, 0 deletions
diff --git a/third_party/rust/mio/src/net/uds/stream.rs b/third_party/rust/mio/src/net/uds/stream.rs
new file mode 100644
index 0000000000..f21d9e7ba5
--- /dev/null
+++ b/third_party/rust/mio/src/net/uds/stream.rs
@@ -0,0 +1,174 @@
+use crate::io_source::IoSource;
+use crate::{event, sys, Interest, Registry, Token};
+
+use std::fmt;
+use std::io::{self, IoSlice, IoSliceMut, Read, Write};
+use std::net::Shutdown;
+use std::os::unix::io::{AsRawFd, FromRawFd, IntoRawFd, RawFd};
+use std::os::unix::net;
+use std::path::Path;
+
+/// A non-blocking Unix stream socket.
+pub struct UnixStream {
+    inner: IoSource<net::UnixStream>,
+}
+
+impl UnixStream {
+    /// Connects to the socket named by `path`.
+    pub fn connect<P: AsRef<Path>>(path: P) -> io::Result<UnixStream> {
+        sys::uds::stream::connect(path.as_ref()).map(UnixStream::from_std)
+    }
+
+    /// Creates a new `UnixStream` from a standard `net::UnixStream`.
+    ///
+    /// This function is intended to be used to wrap a Unix stream from the
+    /// standard library in the Mio equivalent. The conversion assumes nothing
+    /// about the underlying stream; it is left up to the user to set it in
+    /// non-blocking mode.
+    ///
+    /// # Note
+    ///
+    /// The Unix stream here will not have `connect` called on it, so it
+    /// should already be connected via some other means (be it manually, or
+    /// the standard library).
+    pub fn from_std(stream: net::UnixStream) -> UnixStream {
+        UnixStream {
+            inner: IoSource::new(stream),
+        }
+    }
+
+    /// Creates an unnamed pair of connected sockets.
+    ///
+    /// Returns two `UnixStream`s which are connected to each other.
+    pub fn pair() -> io::Result<(UnixStream, UnixStream)> {
+        sys::uds::stream::pair().map(|(stream1, stream2)| {
+            (UnixStream::from_std(stream1), UnixStream::from_std(stream2))
+        })
+    }
+
+    /// Returns the socket address of the local half of this connection.
+    pub fn local_addr(&self) -> io::Result<sys::SocketAddr> {
+        sys::uds::stream::local_addr(&self.inner)
+    }
+
+    /// Returns the socket address of the remote half of this connection.
+    pub fn peer_addr(&self) -> io::Result<sys::SocketAddr> {
+        sys::uds::stream::peer_addr(&self.inner)
+    }
+
+    /// Returns the value of the `SO_ERROR` option.
+    pub fn take_error(&self) -> io::Result<Option<io::Error>> {
+        self.inner.take_error()
+    }
+
+    /// Shuts down the read, write, or both halves of this connection.
+    ///
+    /// This function will cause all pending and future I/O calls on the
+    /// specified portions to immediately return with an appropriate value
+    /// (see the documentation of `Shutdown`).
+    pub fn shutdown(&self, how: Shutdown) -> io::Result<()> {
+        self.inner.shutdown(how)
+    }
+}
+
+impl Read for UnixStream {
+    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
+        self.inner.do_io(|inner| (&*inner).read(buf))
+    }
+
+    fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> io::Result<usize> {
+        self.inner.do_io(|inner| (&*inner).read_vectored(bufs))
+    }
+}
+
+impl<'a> Read for &'a UnixStream {
+    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
+        self.inner.do_io(|inner| (&*inner).read(buf))
+    }
+
+    fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> io::Result<usize> {
+        self.inner.do_io(|inner| (&*inner).read_vectored(bufs))
+    }
+}
+
+impl Write for UnixStream {
+    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
+        self.inner.do_io(|inner| (&*inner).write(buf))
+    }
+
+    fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> io::Result<usize> {
+        self.inner.do_io(|inner| (&*inner).write_vectored(bufs))
+    }
+
+    fn flush(&mut self) -> io::Result<()> {
+        self.inner.do_io(|inner| (&*inner).flush())
+    }
+}
+
+impl<'a> Write for &'a UnixStream {
+    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
+        self.inner.do_io(|inner| (&*inner).write(buf))
+    }
+
+    fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> io::Result<usize> {
+        self.inner.do_io(|inner| (&*inner).write_vectored(bufs))
+    }
+
+    fn flush(&mut self) -> io::Result<()> {
+        self.inner.do_io(|inner| (&*inner).flush())
+    }
+}
+
+impl event::Source for UnixStream {
+    fn register(
+        &mut self,
+        registry: &Registry,
+        token: Token,
+        interests: Interest,
+    ) -> io::Result<()> {
+        self.inner.register(registry, token, interests)
+    }
+
+    fn reregister(
+        &mut self,
+        registry: &Registry,
+        token: Token,
+        interests: Interest,
+    ) -> io::Result<()> {
+        self.inner.reregister(registry, token, interests)
+    }
+
+    fn deregister(&mut self, registry: &Registry) -> io::Result<()> {
+        self.inner.deregister(registry)
+    }
+}
+
+impl fmt::Debug for UnixStream {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        self.inner.fmt(f)
+    }
+}
+
+impl IntoRawFd for UnixStream {
+    fn into_raw_fd(self) -> RawFd {
+        self.inner.into_inner().into_raw_fd()
+    }
+}
+
+impl AsRawFd for UnixStream {
+    fn as_raw_fd(&self) -> RawFd {
+        self.inner.as_raw_fd()
+    }
+}
+
+impl FromRawFd for UnixStream {
+    /// Converts a `RawFd` to a `UnixStream`.
+    ///
+    /// # Notes
+    ///
+    /// The caller is responsible for ensuring that the socket is in
+    /// non-blocking mode.
+    unsafe fn from_raw_fd(fd: RawFd) -> UnixStream {
+        UnixStream::from_std(FromRawFd::from_raw_fd(fd))
+    }
+}