53 lines
956 B
C
53 lines
956 B
C
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <assert.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <string.h>
|
|
#include <sys/wait.h>
|
|
|
|
void fils(void)
|
|
{
|
|
int n;
|
|
srand(getpid());
|
|
exit(rand() % 128);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int n, max, status;
|
|
assert(argc == 2);
|
|
n = strtol(argv[1], NULL, 0);
|
|
|
|
for (int i = 0; i <= n; i++)
|
|
{
|
|
pid_t p = fork();
|
|
assert(p != -1);
|
|
|
|
if (p == 0)
|
|
{
|
|
fils();
|
|
}
|
|
}
|
|
|
|
wait(&status);
|
|
|
|
if (WIFEXITED(status))
|
|
max = WEXITSTATUS(status);
|
|
|
|
for (int i = 0; i <= n; i++)
|
|
{
|
|
wait(&status);
|
|
if (WIFEXITED(status))
|
|
{
|
|
if (WEXITSTATUS(status) > max)
|
|
max = WEXITSTATUS(status);
|
|
}
|
|
}
|
|
|
|
printf("Le maximum est %d\n", max);
|
|
exit(0);
|
|
} |