J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2005 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * @test |
| 26 | * @bug 6275329 |
| 27 | * @summary lazySet methods |
| 28 | */ |
| 29 | |
| 30 | import java.util.concurrent.atomic.*; |
| 31 | import java.util.*; |
| 32 | |
| 33 | public class Lazy { |
| 34 | volatile int ii; |
| 35 | volatile long ll; |
| 36 | volatile Boolean bb; |
| 37 | static final Lazy z = new Lazy(); |
| 38 | |
| 39 | public static void main(String[] args) throws Exception { |
| 40 | final AtomicBoolean b = new AtomicBoolean(); |
| 41 | final AtomicInteger i = new AtomicInteger(); |
| 42 | final AtomicLong l = new AtomicLong(); |
| 43 | final AtomicReference<Long> r = new AtomicReference<Long>(); |
| 44 | |
| 45 | final AtomicIntegerArray ia = new AtomicIntegerArray(1); |
| 46 | final AtomicLongArray la = new AtomicLongArray(1); |
| 47 | final AtomicReferenceArray<Long> ra = new AtomicReferenceArray<Long>(1); |
| 48 | |
| 49 | final AtomicIntegerFieldUpdater<Lazy> iu = |
| 50 | AtomicIntegerFieldUpdater.newUpdater(Lazy.class, "ii"); |
| 51 | final AtomicLongFieldUpdater<Lazy> lu = |
| 52 | AtomicLongFieldUpdater.newUpdater(Lazy.class, "ll"); |
| 53 | final AtomicReferenceFieldUpdater<Lazy,Boolean> ru = |
| 54 | AtomicReferenceFieldUpdater.newUpdater(Lazy.class, |
| 55 | Boolean.class, "bb"); |
| 56 | |
| 57 | Thread[] threads = { |
| 58 | new Thread() { public void run() { b.lazySet(true); }}, |
| 59 | new Thread() { public void run() { i.lazySet(2); }}, |
| 60 | new Thread() { public void run() { l.lazySet(3L); }}, |
| 61 | new Thread() { public void run() { r.lazySet(9L); }}, |
| 62 | new Thread() { public void run() { ia.lazySet(0,4); }}, |
| 63 | new Thread() { public void run() { la.lazySet(0,5L); }}, |
| 64 | new Thread() { public void run() { ra.lazySet(0,6L); }}, |
| 65 | new Thread() { public void run() { iu.lazySet(z,7); }}, |
| 66 | new Thread() { public void run() { lu.lazySet(z,8L); }}, |
| 67 | new Thread() { public void run() { ru.lazySet(z,true); }}}; |
| 68 | |
| 69 | for (Thread t : threads) t.start(); |
| 70 | for (Thread t : threads) t.join(); |
| 71 | |
| 72 | if (! (b.get() == true && |
| 73 | i.get() == 2 && |
| 74 | l.get() == 3L && |
| 75 | r.get() == 9L && |
| 76 | ia.get(0) == 4 && |
| 77 | la.get(0) == 5L && |
| 78 | ra.get(0) == 6L && |
| 79 | z.ii == 7 && |
| 80 | z.ll == 8L && |
| 81 | z.bb == true)) |
| 82 | throw new Exception("lazySet failed"); |
| 83 | } |
| 84 | } |