pthread_barrierattr_t
const pthread_barrierattr_t * __restrict, unsigned int);
int pthread_barrierattr_init(pthread_barrierattr_t *);
int pthread_barrierattr_destroy(pthread_barrierattr_t *);
int pthread_barrierattr_getpshared(const pthread_barrierattr_t * __restrict,
int pthread_barrierattr_setpshared(pthread_barrierattr_t *, int);
pthread_barrierattr_getpshared(const pthread_barrierattr_t * __restrict attr,
pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared)
pthread_barrierattr_init(pthread_barrierattr_t *attr)
pthread_barrierattr_destroy(pthread_barrierattr_t *attr)
const pthread_barrierattr_t *attr, unsigned int count)