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.recording.state;
  27 
  28 import jdk.jfr.Recording;
  29 import jdk.jfr.RecordingState;
  30 import jdk.test.lib.jfr.CommonHelper;
  31 import jdk.test.lib.jfr.VoidFunction;
  32 
  33 /**
  34  * @test
  35  * @summary Test Recording state with concurrent recordings
  36  * @key jfr
  37  * @requires vm.hasJFR
  38  * @library /test/lib
  39  * @run main/othervm jdk.jfr.api.recording.state.TestStateMultiple
  40  */
  41 public class TestStateMultiple {
  42 
  43     public static void main(String[] args) throws Throwable {
  44         Recording rA = new Recording();
  45         CommonHelper.verifyRecordingState(rA, RecordingState.NEW);
  46         verifyIllegalState(() -> rA.stop(), "stop() when not started");
  47 
  48         rA.start();
  49         CommonHelper.verifyRecordingState(rA, RecordingState.RUNNING);
  50 
  51         Recording rB = new Recording();
  52         CommonHelper.verifyRecordingState(rA, RecordingState.RUNNING);
  53         verifyIllegalState(() -> rA.start(), "double start()");
  54         CommonHelper.verifyRecordingState(rB, RecordingState.NEW);
  55         verifyIllegalState(() -> rB.stop(), "stop() when not started");
  56 
  57         rB.start();
  58         CommonHelper.verifyRecordingState(rA, RecordingState.RUNNING);
  59         CommonHelper.verifyRecordingState(rB, RecordingState.RUNNING);
  60 
  61         rB.stop();
  62         CommonHelper.verifyRecordingState(rA, RecordingState.RUNNING);
  63         CommonHelper.verifyRecordingState(rB, RecordingState.STOPPED);
  64         verifyIllegalState(() -> rB.start(), "start() after stop()");
  65 
  66         rB.close();
  67         CommonHelper.verifyRecordingState(rA, RecordingState.RUNNING);
  68         CommonHelper.verifyRecordingState(rB, RecordingState.CLOSED);
  69         verifyIllegalState(() -> rB.start(), "start() after close()");
  70 
  71         rA.stop();
  72         CommonHelper.verifyRecordingState(rA, RecordingState.STOPPED);
  73         verifyIllegalState(() -> rA.start(), "start() after stop()");
  74         CommonHelper.verifyRecordingState(rB, RecordingState.CLOSED);
  75 
  76         rA.close();
  77         CommonHelper.verifyRecordingState(rA, RecordingState.CLOSED);
  78         CommonHelper.verifyRecordingState(rB, RecordingState.CLOSED);
  79         verifyIllegalState(() -> rA.stop(), "stop() after close()");
  80         verifyIllegalState(() -> rB.start(), "start() after close()");
  81     }
  82 
  83     private static void verifyIllegalState(VoidFunction f, String msg) throws Throwable {
  84         CommonHelper.verifyException(f, msg, IllegalStateException.class);
  85     }
  86 }