pengine_shutdown(int nsig)
pengine_shutdown(int nsig, gpointer unused)
pengine_shutdown(int nsig){	static int shuttingdown = 0;	CL_SIGNAL(nsig, pengine_shutdown);  	if (!shuttingdown) {		shuttingdown = 1;	}	if (mainloop != NULL && g_main_is_running(mainloop)) {		g_main_quit(mainloop);	}else{		exit(LSB_EXIT_OK);	}}