usrbin/main.c


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#include <signal.h>
#include <stdint.h>
#include <stdio.h>
#include <time.h>
#include <unistd.h>

void sighandler(int sig) {
  printf("Caught SIGALRM!\n");
}

void pid1(void) {
  signal(SIGALRM, &sighandler);
  alarm(2);
  pause();
  printf("Alarm expired!\n");
  pause();

  while(1)
    printf("It's didn't work!\n");
}

void pid2(void) {
  int x = 0;

  while(1) {
    sleep(1);
    printf("0x%04x:0x%08x: 0x%08x, 0x%08x\n", getpid(), (uint32_t) getpdir(), time(), x++);
  }
}

void main(void) {
  printf("We did it ma!\n");

  if(getpid() == 1)
    pid1();
  pid2();
}