/**********************************************************
// Author: Abdirahim Abdi
// Assignment: Lab 2
// Class: CSE 660 - Operating Systems
// Description: Operating System Commands
// File AA.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 << "Begin Program.\n\n";
	cout << "Process ID AA" << ": " << getpid() << "(CODE AA)" << " - Creating Process A, Process C1, Process C1a\n\n";
	int process_b=0, process_c1=0, process_c1a = 0;
	int k, z = 0;
	
	process_b = fork();
	if (process_b == 0)
	{
		execv("BB", argv);
	}
	k = wait(&z);
	sleep(4);
	
	process_c1 = fork();
	if (process_c1 == 0)
	{
		execv("CC", argv);
	}
	sleep(4);
	
	process_c1a = fork();
	if (process_c1a == 0)
	{
		execv("CC", argv);
	}
	sleep(4);
	
	cout << "Process ID AA" << ": " << process_b<< " - terminated.\n\n";
	
	
	int process_d=0, process_c2=0, process_ee = 0;
	
	process_d = fork();
	if (process_d == 0)
	{
		execv("DD", argv);
	}
	k=wait(&z);
	sleep(4);
	
	process_c2 = fork();
	if (process_c2 == 0)
	{
		execv("CC", argv);
	}
	sleep(4);
	
	process_ee = fork();
	if (process_ee == 0)
	{
		execv("EE", argv);
	}
	sleep(4);
	
	cout << "Process ID AA" << ": " << getpid() << "(CODE AA)";
	cout <<  " - Creating Process ID " << process_d << "(CODE DD), ";
	cout <<  "process ID " << process_c2 << "(CODE CC), ";
	cout <<  "process ID " << process_ee << "(CODE EE)\n\n";
	
	kill(process_c1, SIGKILL);
	cout << "Process ID AA" << ": " << getpid() << "(CODE AA)" << " - terminating " << process_c1 << ".\n\n";
	
	kill(process_c1a, SIGKILL);
	cout << "Process ID AA" << ": " << getpid() << "(CODE AA)" << " - terminating " << process_c1a << ".\n\n";
	
	kill(process_c2, SIGKILL);
	cout << "Process ID AA" << ": " << getpid() << "(CODE AA)" << " - terminating " << process_c2 << ".\n\n";
	
	cout << "Process ID AA" << ": " << getpid() << "(CODE AA)" << " - Process ID " << process_c1 << " terminated.\n";
	cout << "Process ID AA" << ": " << getpid() << "(CODE AA)" << " - Process ID " << process_c1a << " terminated.\n";
	cout << "Process ID AA" << ": " << getpid() << "(CODE AA)" << " - Process ID " << process_c2 << " terminated.\n\n";
	
	
	
	char inputtedString [200];
	cout << "Process ID AA" << ": " << getpid() << "(CODE AA)" << " - Input a character string: ";
	cin >> inputtedString;
	
	char *argv1[3];
	
	argv1[0] = inputtedString;
	argv1[1] = "ABDIRAHIM ABDI";
	argv1[2] = NULL;
	
	int process_ff;
	process_ff = fork();
	sleep(2);
	
	cout << "Process ID AA" << ": " << getpid() << " - Creating process id(CODE FF) and terminating.\n\n";
	sleep(2);
	if (process_ff == 0)
	{
		execv("FF",argv1);
	}
	sleep(3);
	
	
	return 0;
}
/*************************************/