[libc-commits] [libc] [libc] add pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock … (PR #100543)

[via libc-commits]

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@@ -0,0 +1,51 @@
+//===-- Implementation of the Rwlock's clockrdlock 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_clockrdlock.h"
+
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+#include "src/__support/threads/linux/rwlock.h"
+
+#include <errno.h>
+#include <pthread.h>
+
+namespace LIBC_NAMESPACE_DECL {
+
+static_assert(
+    sizeof(RwLock) == sizeof(pthread_rwlock_t) &&
+        alignof(RwLock) == alignof(pthread_rwlock_t),
+    "The public pthread_rwlock_t type must be of the same size and alignment "
+    "as the internal rwlock type.");
+
+LLVM_LIBC_FUNCTION(int, pthread_rwlock_clockrdlock,
+                   (pthread_rwlock_t * rwlock, clockid_t clockid,
+                    const struct timespec *abstime)) {
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lntue wrote:

nit: `struct` is not needed.

https://github.com/llvm/llvm-project/pull/100543