author | egahlin |
Fri, 11 Oct 2019 20:23:12 +0200 | |
branch | JEP-349-branch |
changeset 58572 | 0d3ae8536b83 |
parent 58476 | 28c81f635a5e |
permissions | -rw-r--r-- |
57361 | 1 |
/* |
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* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package jdk.jfr.api.consumer.streaming; |
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import java.util.concurrent.CountDownLatch; |
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import jdk.jfr.Event; |
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import jdk.jfr.Recording; |
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import jdk.jfr.consumer.RecordingStream; |
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/** |
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* @test |
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* @summary Tests that a stream can gracefully handle chunk being removed |
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* @key jfr |
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* @requires vm.hasJFR |
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* @library /test/lib |
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* @run main/othervm -Xlog:jfr*=info jdk.jfr.api.consumer.streaming.TestRemovedChunks |
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*/ |
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public class TestRemovedChunks { |
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private final static CountDownLatch parkLatch = new CountDownLatch(1); |
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private final static CountDownLatch removalLatch = new CountDownLatch(1); |
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58271
e47423f1318b
Test fixes: more logging, typos, fixes to at-run targets
mseledtsov
parents:
57361
diff
changeset
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private final static CountDownLatch IFeelFineLatch = new CountDownLatch(1); |
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static class DataEvent extends Event { |
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double double1; |
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double double2; |
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double double3; |
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double double4; |
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double double5; |
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} |
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static class ParkStream extends Event { |
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} |
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static class IFeelFine extends Event { |
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} |
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public static void main(String... args) throws Exception { |
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try (RecordingStream s = new RecordingStream()) { |
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s.setMaxSize(5_000_000); |
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s.onEvent(ParkStream.class.getName(), e -> { |
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parkLatch.countDown(); |
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await(removalLatch); |
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}); |
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s.onEvent(IFeelFine.class.getName(), e -> { |
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58271
e47423f1318b
Test fixes: more logging, typos, fixes to at-run targets
mseledtsov
parents:
57361
diff
changeset
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IFeelFineLatch.countDown(); |
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}); |
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s.startAsync(); |
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// Fill first chunk with data |
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emitData(1_000_000); |
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// Park stream |
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ParkStream ps = new ParkStream(); |
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ps.commit(); |
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await(parkLatch); |
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// Rotate and emit data that exceeds maxSize |
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for (int i = 0; i< 10;i++) { |
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try (Recording r = new Recording()) { |
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r.start(); |
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emitData(1_000_000); |
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} |
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} |
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// Emit final event |
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IFeelFine i = new IFeelFine(); |
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i.commit(); |
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// Wake up parked stream |
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removalLatch.countDown(); |
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// Await event things gone bad |
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58271
e47423f1318b
Test fixes: more logging, typos, fixes to at-run targets
mseledtsov
parents:
57361
diff
changeset
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await(IFeelFineLatch); |
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} |
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} |
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private static void await(CountDownLatch latch) throws Error { |
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try { |
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latch.await(); |
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} catch (InterruptedException e1) { |
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throw new Error("Latch interupted"); |
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} |
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} |
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private static void emitData(int amount) throws InterruptedException { |
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int count = 0; |
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while (amount > 0) { |
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DataEvent de = new DataEvent(); |
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// 5 doubles are 40 bytes bytes |
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// and event size, event type, thread, |
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// start time, duration and stack trace about 15 bytes |
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de.double1 = 0.0; |
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de.double2 = 1.0; |
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de.double3 = 2.0; |
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de.double4 = 3.0; |
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de.double5 = 4.0; |
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de.commit(); |
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amount -= 55; |
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count++; |
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// |
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if (count % 100_000 == 0) { |
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Thread.sleep(10); |
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} |
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} |
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} |
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} |