Mercurial > hg > truffle
view graal/com.oracle.graal.snippets.test/src/com/oracle/graal/snippets/MonitorTest.java @ 7745:4c0a36672095
Move SuppressWarnings.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Thu, 07 Feb 2013 18:59:56 +0100 |
parents | 5e3d1a68664e |
children |
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/* * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.snippets; import org.junit.*; import com.oracle.graal.compiler.test.*; import com.oracle.graal.virtual.phases.ea.*; public class MonitorTest extends GraalCompilerTest { @Test public void test0() { test("lockObjectSimple", new Object(), new Object()); test("lockObjectSimple", new Object(), null); } @Test public void test0_1() { test("lockThisSimple", "test1", new Object()); test("lockThisSimple", "test1", null); } @Test public void test0_2() { test("lockObjectSimple", null, "test1"); } @Test public void test1_1() { test("lockObject", new Object(), "test1", new String[1]); } @Test public void test1_2() { test("lockObject", null, "test1_1", new String[1]); } @Test public void test2() { test("lockThis", "test2", new String[1]); } /** * Tests monitor operations on {@link PartialEscapeAnalysisPhase virtual objects}. */ @Test public void test3() { test("lockLocalObject", "test3", new String[1]); } /** * Tests recursive locking of objects which should be biasable. */ @Test public void test4() { Chars src = new Chars("1234567890".toCharArray()); Chars dst = new Chars(src.data.length); test("copyObj", src, dst, 100); } /** * Tests recursive locking of objects which do not appear to be biasable. */ @Test public void test5() { char[] src = "1234567890".toCharArray(); char[] dst = new char[src.length]; test("copyArr", src, dst, 100); } /** * Extends {@link #test4()} with contention. */ @Test public void test6() { Chars src = new Chars("1234567890".toCharArray()); Chars dst = new Chars(src.data.length); int n = Runtime.getRuntime().availableProcessors(); testN(n, "copyObj", src, dst, 100); } /** * Extends {@link #test5()} with contention. */ @Test public void test7() { char[] src = "1234567890".toCharArray(); char[] dst = new char[src.length]; int n = Runtime.getRuntime().availableProcessors(); testN(n, "copyArr", src, dst, 100); } private static String setAndGet(String[] box, String value) { synchronized (box) { box[0] = null; } // Do a GC while a object is locked (by the caller) System.gc(); synchronized (box) { box[0] = value; } return box[0]; } public static Object lockObjectSimple(Object o, Object value) { synchronized (o) { value.hashCode(); return value; } } public String lockThisSimple(String value, Object o) { synchronized (this) { synchronized (value) { o.hashCode(); return value; } } } public static String lockObject(Object o, String value, String[] box) { synchronized (o) { return setAndGet(box, value); } } public String lockThis(String value, String[] box) { synchronized (this) { return setAndGet(box, value); } } public static String lockLocalObject(String value, String[] box) { Object o = new Object(); synchronized (o) { return setAndGet(box, value); } } static class Chars { final char[] data; public Chars(int size) { this.data = new char[size]; } public Chars(char[] data) { this.data = data; } } public static String copyObj(Chars src, Chars dst, int n) { System.out.println(Thread.currentThread().getName() + " reps=" + n + ", src.length=" + src.data.length); int total = 0; for (int j = 0; j < n; j++) { for (int i = 0; i < src.data.length; i++) { synchronized (src) { synchronized (dst) { synchronized (src) { synchronized (dst) { dst.data[i] = src.data[i]; total++; } } } } } } System.out.println(Thread.currentThread().getName() + " total " + total); return new String(dst.data); } public static String copyArr(char[] src, char[] dst, int n) { System.out.println(Thread.currentThread().getName() + " reps=" + n + ", src.length=" + src.length); int total = 0; for (int j = 0; j < n; j++) { for (int i = 0; i < src.length; i++) { synchronized (src) { synchronized (dst) { synchronized (src) { synchronized (dst) { dst[i] = src[i]; total++; } } } } } } System.out.println(Thread.currentThread().getName() + " total " + total); return new String(dst); } }