package org.owasp.webgoat.util;
import java.util.BitSet;
/***************************************************************************************************
*
*
* This file is part of WebGoat, an Open Web Application Security Project utility. For details,
* please see http://www.owasp.org/
*
* Copyright (c) 2002 - 20014 Bruce Mayhew
*
* 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., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Getting Source ==============
*
* Source for this application is maintained at https://github.com/WebGoat/WebGoat, a repository for free software
* projects.
*
* For details, please see http://webgoat.github.io
*
* @author jwilliams@aspectsecurity.com
* @created November 6, 2002
*/
public class ThreadWatcher implements Runnable
{
// time to live in milliseconds
private BitSet myInterrupted;
private Process myProcess;
private int myTimeout;
/**
* Constructor for the ThreadWatcher object
*
* @param p
* Description of the Parameter
* @param interrupted
* Description of the Parameter
* @param timeout
* Description of the Parameter
*/
public ThreadWatcher(Process p, BitSet interrupted, int timeout)
{
myProcess = p;
// thread used by whoever constructed this watcher
myTimeout = timeout;
myInterrupted = interrupted;
}
/*
* Interrupt the thread by marking the interrupted bit and killing the process
*/
/**
* Description of the Method
*/
public void interrupt()
{
myInterrupted.set(0);
// set interrupted bit (bit 0 of the bitset) to 1
myProcess.destroy();
/*
* try { myProcess.getInputStream().close(); } catch( IOException e1 ) { / do nothing --
* input streams are probably already closed } try { myProcess.getErrorStream().close(); }
* catch( IOException e2 ) { / do nothing -- input streams are probably already closed }
* myThread.interrupt();
*/
}
/**
* Main processing method for the ThreadWatcher object
*/
public void run()
{
try
{
Thread.sleep(myTimeout);
} catch (InterruptedException e)
{
// do nothing -- if watcher is interrupted, so is thread
}
interrupt();
}
}