1 files changed, 29 insertions, 0 deletions
diff --git a/libcxx/modules/std/rcu.cppm b/libcxx/modules/std/rcu.cppm
new file mode 100644
index 000000000000..fb5e5e1a5066
--- /dev/null
+++ b/libcxx/modules/std/rcu.cppm
@@ -0,0 +1,29 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+module;
+#if __has_include(<rcu>)
+#  error "include this header unconditionally and uncomment the exported symbols"
+#  include <rcu>
+#endif
+
+export module std:rcu;
+export namespace std {
+#if 0
+#  if _LIBCPP_STD_VER >= 23
+  // 2.2.3, class template rcu_obj_base using std::rcu_obj_base;
+  // 2.2.4, class rcu_domain
+  using std::rcu_domain;
+  using std::rcu_default_domain();
+  using std::rcu_barrier;
+  using std::rcu_retire;
+  using std::rcu_synchronize;
+#  endif // _LIBCPP_STD_VER >= 23
+#endif
+} // namespace std