dfcba1d8 |
1 | #include <stdlib.h> |
2 | #include <stdio.h> |
3 | #include <unistd.h> |
4 | |
5 | #include <signal.h> |
6 | #include <sys/wait.h> |
7 | |
8 | pid_t children[5]; |
9 | |
10 | void announce_death() { |
11 | |
12 | printf("i'm pid #%lu and i died.\n", (long) getpid()); |
13 | } |
14 | |
15 | int main(int argc, char *argv[]) { |
16 | |
17 | pid_t our_pid; |
18 | our_pid = getpid(); |
19 | |
20 | for(int i = 0; i < 5; i++) { |
21 | if((children[i] = fork()) == 0) |
22 | goto child; |
23 | else |
24 | sleep(1); |
25 | } |
26 | |
27 | for(int i = 0; i < 5; i++) { |
28 | |
29 | kill(children[i], SIGTERM); |
30 | wait(0); |
31 | } |
32 | |
33 | return 0; |
34 | |
35 | child: |
36 | printf("i'm pid #%lu!\n", (long)getpid()); |
37 | atexit(announce_death); |
38 | exit(0); |
39 | } |