Returns the process-shared attribute from the read-writer attribute object
#include <pthread.h>
int pthread_rwlockattr_getpshared (
const pthread_rwlockattr_t *attr,
int *pshared);
(IN) Points to the reader-writer attribute object.
(OUT) Points to the value for the process-shared attribute. For a list of supported values, see Section 48.1.2, Process Shared Flags.
Returns zero; no error conditions have been defined.
The pthread_rwlockattr_destroy function destroys an unused reader-writer attribute object.