/*
 * Copyright (c) 1996 Gunther Schadow.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <iostream.h>
#include <unistd.h>
#include <Signal.h>
#include <Proc.h>
#include <Timer.h>

int termh(Signal &s)
{
  cout << "Help! I (" << getpid() << ") am shot by signal " << s.signal()
    << "! Someone wants to kill me!" << endl;
  if(getpid() % 3)
    {
      cout << "Puh, I (" << getpid() << ") was lucky this time ..." << endl;
      Timer::sleep(0,100000);
      cout << "... but, I (" << getpid()
	<< ") should better leave this place!" << endl;
      Timer::sleep(0,700000);
      exit(0);
    }
  else
    {
      cout << "Ahhhhhhhhhhhhhh...." << endl;
      _exit(1);
    }
}

main()
{
  Signal sigint(SIGINT, NULL, 0, Signal::f_disable);
  atSignal(sigint)
    {
      cout << "STOPPED (" << getpid() << ")!" << endl;
      return 1;
    }

  Proc pc(ProcInfo::now);
  if(pc.child())
    {
      Signal sigterm(SIGTERM, termh);
      
      cout << "I am the child: " << getpid() << endl;
      pause();
    }
  else
    {
      cout << "I am the parent: " << getpid()
	<< ", and this is my child: " << pc.pid() << endl;
      Timer::sleep(0,200000);
      cout << "Now, I (" << getpid() << ") gonna kill my child, hehe!" << endl;
      Timer::sleep(0,100000);
      kill(pc.pid(), SIGTERM);
      Timer::sleep(0,500000);
      if(! pc.running())
	{
	  cout << "Well, the job is done for me (" << getpid()
	    << "), bye, see ya!" << endl;
	}
      else
	{
	  cout << "Grrrr! I (" << getpid() << ") wasn't able to kill it!"
	    << endl;
	}
      return 0;
    }
}