func os/signal.signum

5 uses

	os/signal (current package)
		signal.go#L77: 			remove(signum(s))
		signal.go#L92: 	sn := signum(sig)
		signal.go#L165: 			add(signum(s))
		signal.go#L233: 	n := signum(sig)
		signal_unix.go#L35: func signum(sig os.Signal) int {