Mercurial > hg > truffle

annotate test/runtime/7100935/TestConjointAtomicArraycopy.java @ 4010:16f9fa2bf76c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations Summary: replace the call to memmove by a simple copy loop Reviewed-by: dholmes, kvn, never Contributed-by: axel.siebenborn@sap.com, volker.simonis@gmail.com
author kvn
date Wed, 19 Oct 2011 10:52:30 -0700
parents
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4010
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
1 /*
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
2 * Copyright 2011 SAP AG. All Rights Reserved.
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
4 *
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
7 * published by the Free Software Foundation.
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
8 *
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
13 * accompanied this code).
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
14 *
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
18 *
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
21 * questions.
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
22 */
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
23
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
24 /*
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
25 * @test TestConjointAtomicArraycopy
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
26 * @bug 7100935
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
27 * @summary verify that oops are copied element-wise atomic
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
28 * @run main/othervm -Xint TestConjointAtomicArraycopy
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
29 * @run main/othervm -Xcomp -Xbatch TestConjointAtomicArraycopy
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
30 * @author axel.siebenborn@sap.com
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
31 */
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
32
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
33 public class TestConjointAtomicArraycopy {
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
34
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
35 static volatile Object [] testArray = new Object [4];
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
36
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
37 static short[] a1 = new short[8];
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
38 static short[] a2 = new short[8];
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
39 static short[] a3 = new short[8];
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
40
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
41 static volatile boolean keepRunning = true;
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
42
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
43 static void testOopsCopy() throws InterruptedException{
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
44
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
45 }
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
46
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
47 public static void main(String[] args ) throws InterruptedException{
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
48 for (int i = 0; i < testArray.length; i++){
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
49 testArray[i] = new String("A");
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
50 }
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
51
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
52 Thread writer = new Thread (new Runnable(){
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
53 public void run(){
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
54 for (int i = 0 ; i < 1000000; i++) {
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
55 System.arraycopy(testArray, 1, testArray, 0, 3);
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
56 testArray[2] = new String("a");
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
57 }
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
58 }
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
59 });
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
60
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
61 Thread reader = new Thread( new Runnable(){
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
62 public void run(){
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
63 while (keepRunning){
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
64 String name = testArray[2].getClass().getName();
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
65 if(!(name.endsWith("String"))){
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
66 throw new RuntimeException("got wrong class name");
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
67 }
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
68 }
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
69 }
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
70 });
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
71 keepRunning = true;
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
72 reader.start();
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
73 writer.start();
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
74 writer.join();
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
75 keepRunning = false;
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
76 reader.join();
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
77 }
16f9fa2bf76c 7100935: win32: memmove is not atomic but is used for pd_conjoint_*_atomic operations
kvn
parents:
diff changeset
78 }