1 /* 2 * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.jfr.api.consumer; 27 28 import jdk.jfr.Recording; 29 import jdk.jfr.consumer.RecordedEvent; 30 import jdk.jfr.consumer.RecordedThread; 31 import jdk.testlibrary.Asserts; 32 import jdk.testlibrary.jfr.Events; 33 import jdk.testlibrary.jfr.SimpleEvent; 34 35 /* 36 * @test 37 * @summary Tests that chunks are read in order and constant pools from multiple chunks can be read 38 * @key jfr 39 * @library /lib/testlibrary 40 * @run main/othervm jdk.jfr.api.consumer.TestRecordingInternals 41 */ 42 public class TestRecordingInternals { 43 44 public static void main(String[] args) throws Throwable { 45 try (Recording continuous = new Recording()) { 46 continuous.start(); 47 for (int i = 0; i < 3; i++) { 48 // Each new recording will create a new chunk 49 // with a new set of constant pools, i.e. 50 // constant pools for threads and thread groups 51 createProfilingRecording(i); 52 } 53 continuous.stop(); 54 int i = 0; 55 for (RecordedEvent e : Events.fromRecording(continuous)) { 56 Integer id = e.getValue("id"); 57 RecordedThread rt = e.getThread(); 58 Asserts.assertEquals(id.toString(), rt.getJavaName(), "Thread name should match id"); 59 Asserts.assertEquals(id.toString(), rt.getThreadGroup().getName(), "Thread group name should match id"); 60 Asserts.assertEquals(id, Integer.valueOf(i), "Chunks out of order"); 61 i++; 62 } 63 } 64 } 65 66 private static void createProfilingRecording(int id) throws InterruptedException { 67 try (Recording r = new Recording()) { 68 r.start(); 69 ThreadGroup tg = new ThreadGroup(String.valueOf(id)); 70 Thread t = new Thread(tg, () -> { 71 SimpleEvent event = new SimpleEvent(); 72 event.id = id; 73 event.commit(); 74 }, String.valueOf(id)); 75 t.start(); 76 t.join(); 77 r.stop(); 78 } 79 } 80 }