The function int pthread_condattr_getpshared(const pthread_condattr_t *restrict attr, int *restrict pshared); shall obtain the value of the process-shared attribute from the attributes object referenced by attr. The default value of the attribute is PTHREAD_PROCESS_PRIVATE. If successful, the pthread_condattr_getpshared() function shall return zero and store the value of the process-shared attribute of attr into the object referenced by the pshared parameter. The pthread_condattr_getpshared() function may fail if: [EINVAL] The value specified by attr is invalid.