diff --git a/src/async_io.rs b/src/async_io.rs
index cb5689c..5d95340 100644
--- a/src/async_io.rs
+++ b/src/async_io.rs
@@ -9,7 +9,7 @@ use std::task::{Context, Poll};
 
 #[cfg(unix)]
 use std::{
-    os::unix::io::AsRawFd,
+    os::unix::io::{AsRawFd, RawFd},
     os::unix::net::{SocketAddr as UnixSocketAddr, UnixDatagram, UnixListener, UnixStream},
     path::Path,
 };
@@ -54,6 +54,13 @@ impl<T: AsRawFd> Async<T> {
     }
 }
 
+#[cfg(unix)]
+impl<T: AsRawFd> AsRawFd for Async<T> {
+    fn as_raw_fd(&self) -> RawFd {
+        self.source.raw
+    }
+}
+
 #[cfg(windows)]
 impl<T: AsRawSocket> Async<T> {
     /// Converts a non-blocking I/O handle into an async I/O handle.
@@ -67,6 +74,13 @@ impl<T: AsRawSocket> Async<T> {
     }
 }
 
+#[cfg(windows)]
+impl<T: AsRawSocket> AsRawSocket for Async<T> {
+    fn as_raw_socket(&self) -> RawSocket {
+        self.source.raw
+    }
+}
+
 impl<T> Async<T> {
     /// Gets a reference to the inner I/O handle.
     ///
diff --git a/src/reactor.rs b/src/reactor.rs
index 90c91c4..be6b02b 100644
--- a/src/reactor.rs
+++ b/src/reactor.rs
@@ -245,11 +245,11 @@ impl ReactorLock<'_> {
 pub(crate) struct Source {
     /// Raw file descriptor on Unix platforms.
     #[cfg(unix)]
-    raw: RawFd,
+    pub(crate) raw: RawFd,
 
     /// Raw socket handle on Windows.
     #[cfg(windows)]
-    raw: RawSocket,
+    pub(crate) raw: RawSocket,
 
     /// The ID of this source obtain during registration.
     key: usize,