You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
1.6 KiB
67 lines
1.6 KiB
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <time.h>
|
|
#include <sys/wait.h>
|
|
|
|
int main(int argc, char **argv) {
|
|
|
|
if (argc != 2) {
|
|
fprintf(stderr, "Usage: %s <N>\n", argv[0]);
|
|
exit(1);
|
|
}
|
|
|
|
int N = atoi(argv[1]);
|
|
|
|
if (N <= 0) {
|
|
fprintf(stderr, "N doit être un entier positif.\n");
|
|
exit(1);
|
|
}
|
|
|
|
pid_t pid;
|
|
int etat;
|
|
struct timespec t;
|
|
int fils_id = 1; // Compteur pour l'identité des fils
|
|
|
|
for (int i = 1; i <= N; i++) {
|
|
switch (pid = fork()) {
|
|
case -1:
|
|
perror("fork");
|
|
exit(errno);
|
|
|
|
case 0:
|
|
printf("[fils %d]: je suis le fils de pid %d\n", fils_id, getpid());
|
|
for (int j = 0; j < 10; j++) {
|
|
printf("[fils %d]: %d\n", fils_id, j);
|
|
t.tv_sec = 0;
|
|
t.tv_nsec = i*500000000;
|
|
nanosleep(&t, NULL);
|
|
}
|
|
system("ps -f");
|
|
exit(2);
|
|
|
|
default:
|
|
fils_id++; // Incrémente le compteur pour le prochain fils
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < N; i++) {
|
|
if ((pid = wait(&etat)) == -1) {
|
|
perror("pb avec le wait");
|
|
exit(errno);
|
|
}
|
|
if (WIFEXITED(etat))
|
|
printf("[pere]: mon fils %d a retourne le code %d\n", pid, WEXITSTATUS(etat));
|
|
else
|
|
printf("[pere]: mon fils %d s est mal termine\n", pid);
|
|
}
|
|
|
|
printf("[pere]: Fin du processus pere de pid %d.\n", getpid());
|
|
|
|
exit(0);
|
|
}
|
|
|