1 files changed, 46 insertions, 0 deletions
diff --git a/libcxx/modules/std/mutex.cppm b/libcxx/modules/std/mutex.cppm
new file mode 100644
index 000000000000..fcd087c0e361
--- /dev/null
+++ b/libcxx/modules/std/mutex.cppm
@@ -0,0 +1,46 @@
+// -*- 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;
+#include <mutex>
+
+export module std:mutex;
+export namespace std {
+  // [thread.mutex.class], class mutex
+  using std::mutex;
+  // [thread.mutex.recursive], class recursive_mutex
+  using std::recursive_mutex;
+  // [thread.timedmutex.class] class timed_mutex
+  using std::timed_mutex;
+  // [thread.timedmutex.recursive], class recursive_timed_mutex
+  using std::recursive_timed_mutex;
+
+  using std::adopt_lock_t;
+  using std::defer_lock_t;
+  using std::try_to_lock_t;
+
+  using std::adopt_lock;
+  using std::defer_lock;
+  using std::try_to_lock;
+
+  // [thread.lock], locks
+  using std::lock_guard;
+  using std::scoped_lock;
+  using std::unique_lock;
+
+  using std::swap;
+
+  // [thread.lock.algorithm], generic locking algorithms
+  using std::lock;
+  using std::try_lock;
+
+  using std::once_flag;
+
+  using std::call_once;
+} // namespace std