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p fork wait exit ok

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JunkJumper 2020-09-24 11:44:54 +02:00
parent 858cd39d49
commit 8b366a33f7
1 changed files with 11 additions and 12 deletions
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23
2020-2021/S3T_TP_03_PROCESSUS-2-PROG/Demonstrations_a_etudier/p_fork_wait_exit.c
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@ -29,10 +29,9 @@ int main(int argc, char *argv[])
/**********************/ /**********************/
/* PARTIE A COMPLETER */ /* PARTIE A COMPLETER */
/**********************/ /**********************/
int infosRetour;
int res = fork(); int res = fork();
int max = atoi(argv[1]); int max=atoi(argv[1]);
if (res < 0) if (res < 0)
{ {
printf("ERREUR FORK\n"); printf("ERREUR FORK\n");
@ -44,23 +43,23 @@ int main(int argc, char *argv[])
printf("Je suis le fils :\n"); printf("Je suis le fils :\n");
printf("pid : %d\n", getpid()); printf("pid : %d\n", getpid());
printf("ppid : %d\n", getppid()); printf("ppid : %d\n", getppid());
for (int i = 0; i < max; i++)
{ printf("Hush now quiet now It's time to go to bed for 3 seconds...\n");
printf("/"); sleep(3);
} printf("I know this one ! :D");
printf("\n\n"); printf("\n\n");
exit(max);
} }
else else
{ /************************** PERE ***********************/ { /************************** PERE ***********************/
wait(NULL); wait(&infosRetour);
printf("Je suis le père :\n"); printf("Je suis le père :\n");
printf("pid : %d\n", getpid()); printf("pid : %d\n", getpid());
printf("ppid : %d\n", getppid()); printf("ppid : %d\n", getppid());
printf("%d", WEXITSTATUS(infosRetour));
for (int i = 0; i < max; i++)
{
printf("*");
}
printf("\n\n"); printf("\n\n");
} }
} }