CPU.c

int main()
{
        // Oändlig slinga
        for (;;)
        {
        }
}

mamma.c

#include <stdio.h>
#include <unistd.h>
#include <wait.h>
#include <stdlib.h>

int main()
{
        int processCount;
        int version;
        printf("How many processes to start?\n");
        scanf("%d", &processCount);
        printf("What version to run? (1 for first version, 2 for second version with random termination time)\n");
        scanf("%d", &version);
        printf("Launching %d processes\n", processCount);


        for (int i = 0; i < processCount; i++)
        {
                const pid_t pid = fork();
                if (pid < 0)
                {
                        fprintf(stderr, "Failed to fork process.\n");
                        return 1;
                } else if (pid == 0)
                {
                        execlp("./CPU", "CPU", NULL);
                        return 0;
                }
        }

        printf("Sleeping for two minutes.\n");
        sleep(120);

        if (version == 2) {
                printf("Waiting for children.\n");
                for (int i = 0; i < processCount; i++)
                {
                        pid_t child = wait(NULL);
                        printf("Child with PID %d died.\n", child);
                }
        }
        return 0;
}