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comparison test/compiler/testlibrary/rtm/XAbortProvoker.java @ 17871:665bbe93823f

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8039499: Add all common classes used by tests on RTM support to testlibrary Reviewed-by: kvn, iignatyev Contributed-by: filipp.zhinkin@oracle.com
author iignatyev
date Mon, 14 Apr 2014 19:29:34 +0400
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17870:a0eb3f61d34a 17871:665bbe93823f
1 /*
2 * Copyright (c) 2014, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 package rtm;
26
27 import com.oracle.java.testlibrary.Utils;
28 import sun.misc.Unsafe;
29
30 /**
31 * Current RTM locking implementation force transaction abort
32 * before native method call by explicit xabort(0) call.
33 */
34 class XAbortProvoker extends AbortProvoker {
35 // Following field have to be static in order to avoid escape analysis.
36 @SuppressWarnings("UnsuedDeclaration")
37 private static int field = 0;
38 private static final Unsafe UNSAFE = Utils.getUnsafe();
39
40 public XAbortProvoker() {
41 this(new Object());
42 }
43
44 public XAbortProvoker(Object monitor) {
45 super(monitor);
46 }
47
48 @Override
49 public void forceAbort() {
50 synchronized(monitor) {
51 XAbortProvoker.field = UNSAFE.addressSize();
52 }
53 }
54
55 @Override
56 public String[] getMethodsToCompileNames() {
57 return new String[] {
58 getMethodWithLockName(),
59 Unsafe.class.getName() + "::addressSize"
60 };
61 }
62 }