cancel-safe by POSIX.1-2001 and POSIX.1-2008: pthread_cancel() pthread_setcancelstate() pthread_setcanceltype() Cancelation points POSIX.1 ... atfork (3), pthread_attr_init (3), pt…pthread_attr_setdetachstate () pthread_attr_setschedparam () pthread_cancel () pthread_cleanup_push () pthread_cleanup_pop () pthread