1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (C) 2023 SUSE 4 * Authors: Libor Pechacek <lpechacek@suse.cz> 5 * Marcos Paulo de Souza <mpdesouza@suse.com> 6 */ 7 8 #include <stdio.h> 9 #include <unistd.h> 10 #include <sys/syscall.h> 11 #include <sys/types.h> 12 #include <signal.h> 13 14 static int stop; 15 static int sig_int; 16 17 void hup_handler(int signum) 18 { 19 stop = 1; 20 } 21 22 void int_handler(int signum) 23 { 24 stop = 1; 25 sig_int = 1; 26 } 27 28 int main(int argc, char *argv[]) 29 { 30 long count = 0; 31 32 signal(SIGHUP, &hup_handler); 33 signal(SIGINT, &int_handler); 34 35 while (!stop) { 36 (void)syscall(SYS_getpid); 37 count++; 38 } 39 40 if (sig_int) 41 printf("%ld iterations done\n", count); 42 43 return 0; 44 } 45