llvm/libc/src/pthread/pthread_mutexattr_getrobust.cpp

//===-- Implementation of the pthread_mutexattr_getrobust -----------------===//
//
// 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 "pthread_mutexattr_getrobust.h"
#include "pthread_mutexattr.h"

#include "src/__support/common.h"
#include "src/__support/macros/config.h"

#include <errno.h>

namespace LIBC_NAMESPACE_DECL {

LLVM_LIBC_FUNCTION(int, pthread_mutexattr_getrobust,
                   (const pthread_mutexattr_t *__restrict attr,
                    int *__restrict robust)) {
  *robust = (*attr & unsigned(PThreadMutexAttrPos::ROBUST_MASK)) >>
            unsigned(PThreadMutexAttrPos::ROBUST_SHIFT);
  return 0;
}

} // namespace LIBC_NAMESPACE_DECL