| /* |
| * Copyright (c) 2013, 2018, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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 jdk.test.lib.jfr; |
| |
| import static jdk.test.lib.Asserts.assertEquals; |
| import static jdk.test.lib.Asserts.fail; |
| |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.util.List; |
| |
| import jdk.jfr.Recording; |
| import jdk.jfr.RecordingState; |
| import jdk.jfr.consumer.RecordedEvent; |
| import jdk.jfr.consumer.RecordingFile; |
| import jdk.test.lib.Asserts; |
| |
| |
| /** |
| * Common helper class. |
| */ |
| public final class CommonHelper { |
| |
| private static RecordedEvent timeStampCounterEvent; |
| |
| public static void verifyException(VoidFunction f, String msg, Class<? extends Throwable> expectedException) throws Throwable { |
| try { |
| f.run(); |
| } catch (Throwable t) { |
| if (expectedException.isAssignableFrom(t.getClass())) { |
| return; |
| } |
| t.printStackTrace(); |
| assertEquals(t.getClass(), expectedException, "Wrong exception class"); |
| } |
| fail("Missing Exception for: " + msg); |
| } |
| |
| public static Recording verifyExists(long recId, List<Recording> recordings) { |
| for (Recording r : recordings) { |
| if (recId == r.getId()) { |
| return r; |
| } |
| } |
| Asserts.fail("Recording not found, id=" + recId); |
| return null; |
| } |
| |
| |
| public static void waitForRecordingState(Recording r, RecordingState expectedState) throws Exception { |
| while (r.getState() != expectedState) { |
| Thread.sleep(20); |
| } |
| } |
| |
| public static void verifyRecordingState(Recording r, RecordingState expectedState) throws Exception { |
| assertEquals(expectedState, r.getState(), "Wrong state"); |
| } |
| |
| public static boolean hasFastTimeEnabled() throws Exception { |
| return getTimeStampCounterEvent().getValue("fastTimeEnabled"); |
| } |
| |
| private synchronized static RecordedEvent getTimeStampCounterEvent() throws IOException, Exception { |
| if (timeStampCounterEvent == null) { |
| try (Recording r = new Recording()) { |
| r.enable(EventNames.CPUTimeStampCounter); |
| r.start(); |
| r.stop(); |
| Path p = Files.createTempFile("timestamo", ".jfr"); |
| r.dump(p); |
| List<RecordedEvent> events = RecordingFile.readAllEvents(p); |
| Files.deleteIfExists(p); |
| if (events.isEmpty()) { |
| throw new Exception("Could not locate CPUTimeStampCounter event"); |
| } |
| timeStampCounterEvent = events.get(0); |
| } |
| } |
| return timeStampCounterEvent; |
| } |
| |
| public static void waitForSystemCurrentMillisToChange() { |
| long t = System.currentTimeMillis(); |
| while (t != System.currentTimeMillis()) { |
| try { |
| Thread.sleep(2); |
| } catch (InterruptedException e) { |
| throw new Error("Sleep interupted", e); |
| } |
| } |
| } |
| } |