my_signal 222 lib/util.h MC_MOCKABLE sighandler_t my_signal (int signum, sighandler_t handler); my_signal 514 lib/utilunix.c my_signal (SIGINT, SIG_DFL); my_signal 515 lib/utilunix.c my_signal (SIGQUIT, SIG_DFL); my_signal 516 lib/utilunix.c my_signal (SIGTSTP, SIG_DFL); my_signal 517 lib/utilunix.c my_signal (SIGCHLD, SIG_DFL); my_signal 465 src/main.c (void) my_signal (SIGCHLD, SIG_DFL); // Disable the SIGCHLD handler