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comparison src/org/eclipse/jetty/util/Atomics.java @ 802:3428c60d7cfc

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replace jetty jars with source
author Franklin Schmidt <fschmidt@gmail.com>
date Wed, 07 Sep 2016 21:15:48 -0600
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801:6a21393191c1 802:3428c60d7cfc
1 //
2 // ========================================================================
3 // Copyright (c) 1995-2014 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.
8 //
9 // The Eclipse Public License is available at
10 // http://www.eclipse.org/legal/epl-v10.html
11 //
12 // The Apache License v2.0 is available at
13 // http://www.opensource.org/licenses/apache2.0.php
14 //
15 // You may elect to redistribute this code under either of these licenses.
16 // ========================================================================
17 //
18
19 package org.eclipse.jetty.util;
20
21 import java.util.concurrent.atomic.AtomicInteger;
22 import java.util.concurrent.atomic.AtomicLong;
23
24 public class Atomics
25 {
26 private Atomics()
27 {
28 }
29
30 public static void updateMin(AtomicLong currentMin, long newValue)
31 {
32 long oldValue = currentMin.get();
33 while (newValue < oldValue)
34 {
35 if (currentMin.compareAndSet(oldValue, newValue))
36 break;
37 oldValue = currentMin.get();
38 }
39 }
40
41 public static void updateMax(AtomicLong currentMax, long newValue)
42 {
43 long oldValue = currentMax.get();
44 while (newValue > oldValue)
45 {
46 if (currentMax.compareAndSet(oldValue, newValue))
47 break;
48 oldValue = currentMax.get();
49 }
50 }
51
52 public static void updateMin(AtomicInteger currentMin, int newValue)
53 {
54 int oldValue = currentMin.get();
55 while (newValue < oldValue)
56 {
57 if (currentMin.compareAndSet(oldValue, newValue))
58 break;
59 oldValue = currentMin.get();
60 }
61 }
62
63 public static void updateMax(AtomicInteger currentMax, int newValue)
64 {
65 int oldValue = currentMax.get();
66 while (newValue > oldValue)
67 {
68 if (currentMax.compareAndSet(oldValue, newValue))
69 break;
70 oldValue = currentMax.get();
71 }
72 }
73 }