#define _PTHREAD_MUTEX_POLICY_FAIRSHARE 1
#define _PTHREAD_MUTEX_POLICY_FIRSTFIT 2
-/* sets the mutex policy attributes */
+/* manipulate the mutex policy attributes */
__API_AVAILABLE(macos(10.7), ios(5.0))
int pthread_mutexattr_setpolicy_np(pthread_mutexattr_t *, int );
+__API_AVAILABLE(macos(10.13.4), ios(11.3))
+int pthread_mutexattr_getpolicy_np(const pthread_mutexattr_t *, int * );
+
#endif /* (!_POSIX_C_SOURCE && !_XOPEN_SOURCE) || _DARWIN_C_SOURCE */
__API_AVAILABLE(macos(10.11))