#include <unistd.h>
#include <stdio.h>
#include <iostream>
using namespace std;

int main(){
  int loopCount = 5; // each process will get its own loopCount
  cout << "I am still only one process." << endl;
  pid_t returnedValue = fork();
  if(returnedValue < 0){
    // still only one process
    perror("error forking"); // report the error
    return -1;
  } else if (returnedValue == 0){
    // this must be the child process
    while(loopCount > 0){
      cout << "I am the child process." << endl;
      loopCount--; // decrement child's counter only
      sleep(1); // wait a second before repeating
    }
  } else {
    // this must be the parent process
    while(loopCount > 0){
      cout << "I am the parent process; my child's ID is "
           << returnedValue << "." << endl;
      loopCount--; // decrement parent's counter only
      sleep(1);
    }
  }
  return 0;
}