bsd/kern/kern_sig.c

867 	thread_act_t target_act;
871 	target_act = (thread_act_t)port_name_to_thread(uap->thread_port);
873 	if (target_act == THR_ACT_NULL)
876 	uth = (struct uthread *)get_bsdthread_info(target_act);
883 				thread_abort_safely(target_act);
886 	thread_deallocate(target_act);
1134 	thread_t target_act;
1139 	target_act = (thread_t)port_name_to_thread(uap->thread_port);
1141 	if (target_act == THREAD_NULL)
1148 	uth = (struct uthread *)get_bsdthread_info(target_act);
1156 		psignal_uthread(target_act, signum);
1158 	thread_deallocate(target_act);