| PTHREAD_RWLOCKATTR(3) | Library Functions Manual | PTHREAD_RWLOCKATTR(3) | 
pthread_rwlockattr_init,
  pthread_rwlockattr_destroy,
  pthread_rwlockattr_getpshared,
  pthread_rwlockattr_setpshared —
#include <pthread.h>
int
  
  pthread_rwlockattr_init(pthread_rwlockattr_t
    *attr);
int
  
  pthread_rwlockattr_destroy(pthread_rwlockattr_t
    *attr);
int
  
  pthread_rwlockattr_getpshared(const
    pthread_rwlockattr_t *__restrict attr,
    int * __restrict
    pshared);
int
  
  pthread_rwlockattr_setpshared(pthread_rwlockattr_t
    *attr, int
    pshared);
pthread_rwlockattr_init() function is used to
  initialize a read/write lock attributes object.
The pthread_rwlockattr_destroy() function
    is used to destroy a read/write lock attribute object previously created
    with pthread_rwlockattr_init().
The pthread_rwlockattr_getpshared()
    function shall obtain the value of process-shared attribute from the
    initialized attributes object referenced by attr.
The pthread_rwlockattr_setpshared()
    function shall set the process-shared attribute in an initialized attributes
    object referenced by attr.
pthread_rwlockattr_init() shall fail if:
ENOMEM]pthread_rwlockattr_init() and
    pthread_rwlockattr_destroy() may fail if:
EINVAL]pthread_rwlockattr_getpshared() and
    pthread_rwlockattr_setpshared() may fail if:
EINVAL]pthread_rwlockattr_getpshared() and
  pthread_rwlockattr_setpshared() functions are hidden
  by default since only thread shared attributes are supported.
| June 12, 2016 | NetBSD 9.4 |