1 files changed, 25 insertions, 0 deletions
diff --git a/library/std/src/os/windows/thread.rs b/library/std/src/os/windows/thread.rs
new file mode 100644
index 000000000..d81d6d0ac
--- /dev/null
+++ b/library/std/src/os/windows/thread.rs
@@ -0,0 +1,25 @@
+//! Windows-specific extensions to primitives in the [`std::thread`] module.
+//!
+//! [`std::thread`]: crate::thread
+
+#![stable(feature = "thread_extensions", since = "1.9.0")]
+
+use crate::os::windows::io::{AsRawHandle, IntoRawHandle, RawHandle};
+use crate::sys_common::{AsInner, IntoInner};
+use crate::thread;
+
+#[stable(feature = "thread_extensions", since = "1.9.0")]
+impl<T> AsRawHandle for thread::JoinHandle<T> {
+    #[inline]
+    fn as_raw_handle(&self) -> RawHandle {
+        self.as_inner().handle().as_raw_handle() as *mut _
+    }
+}
+
+#[stable(feature = "thread_extensions", since = "1.9.0")]
+impl<T> IntoRawHandle for thread::JoinHandle<T> {
+    #[inline]
+    fn into_raw_handle(self) -> RawHandle {
+        self.into_inner().into_handle().into_raw_handle() as *mut _
+    }
+}