1 files changed, 26 insertions, 0 deletions
diff --git a/libc/src/pthread/pthread_rwlock_unlock.cpp b/libc/src/pthread/pthread_rwlock_unlock.cpp
new file mode 100644
index 000000000000..21cedf42a8d5
--- /dev/null
+++ b/libc/src/pthread/pthread_rwlock_unlock.cpp
@@ -0,0 +1,26 @@
+//===-- Implementation for Rwlock's unlock function -----------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/pthread/pthread_rwlock_unlock.h"
+
+#include "src/__support/common.h"
+#include "src/__support/threads/linux/rwlock.h"
+
+#include <errno.h>
+#include <pthread.h>
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(int, pthread_rwlock_unlock, (pthread_rwlock_t * rwlock)) {
+  if (!rwlock)
+    return EINVAL;
+  auto *rw = reinterpret_cast<RwLock *>(rwlock);
+  return static_cast<int>(rw->unlock());
+}
+
+} // namespace LIBC_NAMESPACE