2 // ========================================================================
3 // Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
4 // ------------------------------------------------------------------------
5 // All rights reserved. This program and the accompanying materials
6 // are made available under the terms of the Eclipse Public License v1.0
7 // and Apache License v2.0 which accompanies this distribution.
9 // The Eclipse Public License is available at
10 // http://www.eclipse.org/legal/epl-v10.html
12 // The Apache License v2.0 is available at
13 // http://www.opensource.org/licenses/apache2.0.php
15 // You may elect to redistribute this code under either of these licenses.
16 // ========================================================================
19 package org.eclipse.jetty.util;
21 import java.util.concurrent.atomic.AtomicInteger;
22 import java.util.concurrent.atomic.AtomicLong;
30 public static boolean updateMin(AtomicLong currentMin, long newValue)
32 long oldValue = currentMin.get();
33 while (newValue < oldValue)
35 if (currentMin.compareAndSet(oldValue, newValue))
37 oldValue = currentMin.get();
42 public static boolean updateMax(AtomicLong currentMax, long newValue)
44 long oldValue = currentMax.get();
45 while (newValue > oldValue)
47 if (currentMax.compareAndSet(oldValue, newValue))
49 oldValue = currentMax.get();
54 public static boolean updateMin(AtomicInteger currentMin, int newValue)
56 int oldValue = currentMin.get();
57 while (newValue < oldValue)
59 if (currentMin.compareAndSet(oldValue, newValue))
61 oldValue = currentMin.get();
66 public static boolean updateMax(AtomicInteger currentMax, int newValue)
68 int oldValue = currentMax.get();
69 while (newValue > oldValue)
71 if (currentMax.compareAndSet(oldValue, newValue))
73 oldValue = currentMax.get();