pthread_mutexattr_getrobust_np(3C) gets the robust attribute of a mutex attribute object.
#include <pthread.h> int pthread_mutexattr_getrobust_np(const pthread_mutexattr_t *attr, int *robustness);
attr points to the mutex attribute object previously created by a call to pthread_mutexattr_init().
robustness is the value of the robust attribute of a mutex attribute object.
On successful completion, pthread_mutexattr_getrobust_np() returns 0. Any other return value indicates that an error occurred.
pthread_mutexattr_getrobust_np() might fail if the following condition occurs:
EINVAL
Description:The value specified by attr or robustness is invalid.