32 lines · cpp
1//===-- Implementation of the pthread_rwlockattr_setkind_np ---------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "pthread_rwlockattr_setkind_np.h"10 11#include "src/__support/common.h"12#include "src/__support/libc_errno.h"13#include "src/__support/macros/config.h"14 15#include <pthread.h> // pthread_rwlockattr_t16 17namespace LIBC_NAMESPACE_DECL {18 19LLVM_LIBC_FUNCTION(int, pthread_rwlockattr_setkind_np,20 (pthread_rwlockattr_t * attr, int pref)) {21 22 if (pref != PTHREAD_RWLOCK_PREFER_READER_NP &&23 pref != PTHREAD_RWLOCK_PREFER_WRITER_NP &&24 pref != PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP)25 return EINVAL;26 27 attr->pref = pref;28 return 0;29}30 31} // namespace LIBC_NAMESPACE_DECL32