SIGURG
[SIGURG] = "Urgent I/O condition",
[SIGURG] = "URG",
sigaddset(&newmask, SIGURG);
sigaddset(&sset, SIGURG);
sigaddset(&sset, SIGURG);
sigaction(SIGURG, &sa, NULL);
signal(SIGURG, sigurg_handler);
signal(SIGURG, SIG_IGN);
signal(SIGURG, SIG_IGN);
signal(SIGURG, sigurg);
pgsigio(so->so_sigio, SIGURG, 0);
pgsignal (pg, SIGURG, 1);
sigmask(SIGURG));
sigmask(SIGUSR2)|sigmask(SIGURG));
pthread_kill(ap_tids[n], SIGURG);
sigaddset(&ss, SIGURG);
sigaction(SIGURG, &sa, NULL);
{ "urg", SIGURG }, { "stop", SIGSTOP },
sigaddset (&act.sa_mask, SIGURG);
sigaction (SIGURG, &act, NULL);
send_thread_signal (suspender_tid, SIGURG);
send_process_signal (SIGURG);
if (sigcounts[SIGURG] != 2)
sigdelset (&suspender_mask, SIGURG); /* ignore */
sigaddset (&wait_mask, SIGURG); /* ignore */
sigaddset (&act.sa_mask, SIGURG);
sigaction (SIGURG, &act, NULL);
send_thread_signal (tid, SIGURG);
send_process_signal (SIGURG);
if (sigcounts[SIGURG] != 2)
signal(SIGURG, hand);
case SIGURG: return("URG");
signal(SIGURG, hup_handler);