109 	kill(ppid, SIGUSR1);  in child()
126 	kill(ppid, SIGUSR1);  in child()
139 	kill(ppid, SIGUSR1);  in child()
147 	kill(ppid, SIGUSR1);  in child()
162 	kill(ppid, SIGUSR1);  in child()
170 	kill(ppid, SIGUSR1);  in child()
215 	kill(ppid, SIGUSR1);  in child()
231 	kill(cpid, SIGUSR1);  in parent()
238 	kill(cpid, SIGUSR1);  in parent()
245 	kill(cpid, SIGUSR1);  in parent()
255 	kill(cpid, SIGUSR1);  in parent()
262 	kill(cpid, SIGUSR1);  in parent()
269 	kill(cpid, SIGUSR1);  in parent()
284 	signal(SIGUSR1, catch);  in main()