37 lines
687 B
C
37 lines
687 B
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <assert.h>
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void fils(){
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srand(getpid());
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exit(rand()%128);
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}
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int main(int argc, char** argv){
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int i, n, max, status;
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pid_t p;
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if (argc != 2){
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printf("Usage : %s <entier n>", argv[0]);
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exit(1);
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}
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n = (int) strtod(argv[1], NULL);
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for (i = 1; i <= n; i++){
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p = fork();
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assert(p != 1);
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if (p == 0)
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fils();
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}
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wait(&status);
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max = WEXITSTATUS(status);
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for (i = 2; i <= n; i++){
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wait(&status);
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if (WEXITSTATUS(status) > max)
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max = WEXITSTATUS(status);
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}
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printf("Le plus grand nombre choisi par les processus est %d\n", max);
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exit(0);
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}
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