1 /*

     2  * Copyright (c) 2018, 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.test.lib.Asserts;

    32 import jdk.test.lib.jfr.Events;

    33 import jdk.test.lib.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 /test/lib

    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 }