/*
* Copyright (c) 2001-2004 Ant-Contrib project. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.sf.antcontrib.util;
/****************************************************************************
* Place class description here.
*
* @author <a href='mailto:mattinger@yahoo.com'>Matthew Inger</a>
*
****************************************************************************/
public class ThreadPool
{
private int maxActive;
private int active;
public ThreadPool(int maxActive)
{
super();
this.maxActive = maxActive;
this.active = 0;
}
public void returnThread(ThreadPoolThread thread)
{
synchronized (this)
{
active--;
notify();
}
}
public ThreadPoolThread borrowThread()
throws InterruptedException
{
synchronized (this)
{
if (maxActive > 0 && active >= maxActive)
{
wait();
}
active++;
return new ThreadPoolThread(this);
}
}
}