Mercurial > hg > graal-compiler
view graal/com.oracle.graal.jtt/src/com/oracle/graal/jtt/threads/Monitor_contended01.java @ 16041:f0efdd541094
less dependency between jtt tests and GraalCompilerTest constructors
author | Lukas Stadler <lukas.stadler@oracle.com> |
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date | Thu, 05 Jun 2014 18:14:14 +0200 |
parents | c6fcb4a36c6a |
children | 05183a084a08 |
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/* * Copyright (c) 2007, 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.jtt.threads; import org.junit.*; import com.oracle.graal.jtt.*; public final class Monitor_contended01 extends JTTTest { private static class TestClass implements Runnable { boolean started = false; boolean acquired = false; public void run() { // signal that we have started up so first thread will release lock synchronized (cond) { started = true; cond.notifyAll(); } synchronized (obj) { } // signal that we have successfully acquired and released the monitor synchronized (cond) { acquired = true; cond.notifyAll(); } } } static final Object cond = new Object(); static final Object obj = new Object(); public static boolean test() throws InterruptedException { // test contention for monitor final TestClass object = new TestClass(); synchronized (obj) { new Thread(object).start(); // wait for other thread to startup and contend synchronized (cond) { cond.wait(1000); if (!object.started) { return false; } } } // wait for other thread to acquire monitor and then exit synchronized (cond) { cond.wait(1000); } return object.acquired; } @Test(timeout = 20000) public void run0() throws Throwable { runTest("test"); } }