/**********************************************************
// Author: Abdirahim Abdi
// Assignment: Lab 2
// Class: CSE 660 - Operating Systems
// Description: Operating System Commands
// File DD.cpp
**********************************************************/
#include <iostream>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <signal.h>
using namespace std;
/*************************************/
int main(int argc, char *argv[])
{
	
	cout << "Process ID DD" << ": " << getpid() << "(CODE DD)" << " - Created process id(CODE CC) and waiting for 4 seconds.\n\n";
	
	int process_c3 = 0;
	process_c3 = fork();
	if (process_c3 == 0)
	{
		execv("CC", argv);	
	}
	
	
	
	cout << "Process ID DD" << ": " << getpid() << " - Created new process(ps) and waiting to terminate.\n\n";
	int new_process = 0;
	new_process = fork();
	if (new_process == 0)
	{
		execlp("/bin/ps", "-u abdiab");
		exit(3);
	}
	sleep(4);
	
	kill(process_c3, SIGKILL);
	cout << "Process ID DD "  << ": " << getpid() << " - terminating processs id " << process_c3 << ".\n\n";
	exit(0);
}