Mercurial > hg > truffle

annotate test/compiler/testlibrary/rtm/BusyLock.java @ 20304:a22acf6d7598

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8048112: G1 Full GC needs to support the case when the very first region is not available Summary: Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett. Reviewed-by: brutisso
author tschatzl
date Mon, 21 Jul 2014 10:00:31 +0200
parents 665bbe93823f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
17871
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
1 /*
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
4 *
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
7 * published by the Free Software Foundation.
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
8 *
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
13 * accompanied this code).
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
14 *
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
18 *
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
21 * questions.
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
22 *
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
23 */
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
24
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
25 package rtm;
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
26
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
27 import com.oracle.java.testlibrary.Utils;
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
28 import sun.misc.Unsafe;
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
29
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
30 import java.util.concurrent.BrokenBarrierException;
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
31 import java.util.concurrent.CyclicBarrier;
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
32
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
33 /**
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
34 * Test case for busy lock scenario.
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
35 * One thread enters the monitor and sleep for a while.
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
36 * Another thread is blocked on the same monitor.
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
37 */
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
38 public class BusyLock implements CompilableTest, Runnable {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
39 private static final int DEFAULT_TIMEOUT = 1000;
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
40 private final CyclicBarrier barrier;
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
41
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
42 // Following field have to be static in order to avoid escape analysis.
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
43 @SuppressWarnings("UnsuedDeclaration")
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
44 private static int field = 0;
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
45 private static final Unsafe UNSAFE = Utils.getUnsafe();
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
46 protected final Object monitor;
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
47 protected final int timeout;
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
48
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
49 public BusyLock() {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
50 this(BusyLock.DEFAULT_TIMEOUT);
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
51 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
52
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
53 public BusyLock(int timeout) {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
54 this.timeout = timeout;
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
55 this.monitor = new Object();
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
56 this.barrier = new CyclicBarrier(2);
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
57 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
58
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
59 @Override
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
60 public void run() {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
61 try {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
62 // wait until forceAbort leave monitor
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
63 barrier.await();
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
64 if (UNSAFE.tryMonitorEnter(monitor)) {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
65 try {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
66 barrier.await();
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
67 Thread.sleep(timeout);
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
68 } finally {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
69 UNSAFE.monitorExit(monitor);
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
70 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
71 } else {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
72 throw new RuntimeException("Monitor should be entered by " +
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
73 "::run() first.");
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
74 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
75 } catch (InterruptedException | BrokenBarrierException e) {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
76 throw new RuntimeException("Synchronization error happened.", e);
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
77 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
78 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
79
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
80 public void test() {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
81 try {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
82 barrier.await();
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
83 // wait until monitor is locked by a ::run method
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
84 barrier.await();
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
85 } catch (InterruptedException | BrokenBarrierException e) {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
86 throw new RuntimeException("Synchronization error happened.", e);
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
87 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
88 synchronized(monitor) {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
89 BusyLock.field++;
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
90 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
91 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
92
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
93 @Override
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
94 public String getMethodWithLockName() {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
95 return this.getClass().getName() + "::test";
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
96 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
97
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
98 @Override
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
99 public String[] getMethodsToCompileNames() {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
100 return new String[] { getMethodWithLockName() };
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
101 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
102
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
103 /**
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
104 * Usage:
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
105 * BusyLock [ <inflate monitor> [ <timeout> ] ]
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
106 *
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
107 * Default values are:
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
108 * <ul>
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
109 * <li>inflate monitor = {@code true}</li>
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
110 * <li>timeout = {@code BusyLock.DEFAULT_TIMEOUT}</li>
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
111 * </ul>
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
112 */
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
113 public static void main(String args[]) throws Exception {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
114 int timeoutValue = BusyLock.DEFAULT_TIMEOUT;
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
115 boolean inflateMonitor = true;
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
116
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
117 if (args.length > 0 ) {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
118 inflateMonitor = Boolean.valueOf(args[0]);
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
119
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
120 if (args.length > 1) {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
121 timeoutValue = Integer.valueOf(args[1]);
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
122 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
123 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
124
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
125 BusyLock busyLock = new BusyLock(timeoutValue);
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
126
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
127 if (inflateMonitor) {
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
128 AbortProvoker.inflateMonitor(busyLock.monitor);
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
129 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
130
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
131 Thread t = new Thread(busyLock);
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
132 t.start();
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
133 busyLock.test();
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
134 t.join();
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
135 }
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
iignatyev
parents:
diff changeset
136 }