| /* |
| * Copyright (c) 2013, 2015, 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 org.graalvm.compiler.debug.test; |
| |
| import static org.graalvm.compiler.debug.DebugContext.DEFAULT_LOG_STREAM; |
| import static org.graalvm.compiler.debug.DebugContext.NO_CONFIG_CUSTOMIZERS; |
| import static org.graalvm.compiler.debug.DebugContext.NO_DESCRIPTION; |
| import static org.graalvm.compiler.debug.DebugContext.NO_GLOBAL_METRIC_VALUES; |
| import static org.junit.Assert.assertEquals; |
| |
| import jdk.internal.vm.compiler.collections.EconomicMap; |
| import org.graalvm.compiler.debug.DebugCloseable; |
| import org.graalvm.compiler.debug.DebugContext; |
| import org.graalvm.compiler.debug.DebugOptions; |
| import org.graalvm.compiler.debug.TimerKey; |
| import org.graalvm.compiler.options.OptionKey; |
| import org.graalvm.compiler.options.OptionValues; |
| import org.graalvm.compiler.serviceprovider.GraalServices; |
| import org.junit.Assume; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| @SuppressWarnings("try") |
| public class TimerKeyTest { |
| |
| @Before |
| public void checkCapabilities() { |
| Assume.assumeTrue("skipping management interface test", GraalServices.isCurrentThreadCpuTimeSupported()); |
| } |
| |
| /** |
| * Actively spins the current thread for at least a given number of milliseconds in such a way |
| * that timers for the current thread keep ticking over. |
| * |
| * @return the number of milliseconds actually spent spinning which is guaranteed to be >= |
| * {@code ms} |
| */ |
| private static long spin(long ms) { |
| long start = GraalServices.getCurrentThreadCpuTime(); |
| do { |
| long durationMS = (GraalServices.getCurrentThreadCpuTime() - start) / 1000; |
| if (durationMS >= ms) { |
| return durationMS; |
| } |
| } while (true); |
| } |
| |
| /** |
| * Asserts that a timer replied recursively without any other interleaving timers has the same |
| * flat and accumulated times. |
| */ |
| @Test |
| public void test2() { |
| EconomicMap<OptionKey<?>, Object> map = EconomicMap.create(); |
| map.put(DebugOptions.Time, ""); |
| OptionValues options = new OptionValues(map); |
| DebugContext debug = DebugContext.create(options, NO_DESCRIPTION, NO_GLOBAL_METRIC_VALUES, DEFAULT_LOG_STREAM, NO_CONFIG_CUSTOMIZERS); |
| |
| TimerKey timerC = DebugContext.timer("TimerC"); |
| try (DebugCloseable c1 = timerC.start(debug)) { |
| spin(50); |
| try (DebugCloseable c2 = timerC.start(debug)) { |
| spin(50); |
| try (DebugCloseable c3 = timerC.start(debug)) { |
| spin(50); |
| try (DebugCloseable c4 = timerC.start(debug)) { |
| spin(50); |
| try (DebugCloseable c5 = timerC.start(debug)) { |
| spin(50); |
| } |
| } |
| } |
| } |
| } |
| if (timerC.getFlat() != null) { |
| assertEquals(timerC.getFlat().getCurrentValue(debug), timerC.getCurrentValue(debug)); |
| } |
| } |
| } |