| /* |
| * Copyright (c) 2019, 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.jfr.api.consumer.recordingstream; |
| |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| import jdk.jfr.Event; |
| import jdk.jfr.consumer.RecordingStream; |
| |
| /** |
| * @test |
| * @summary Tests RecordingStream::close() |
| * @key jfr |
| * @requires vm.hasJFR |
| * @library /test/lib |
| * @run main/othervm jdk.jfr.api.consumer.recordingstream.TestClose |
| */ |
| public class TestClose { |
| |
| private static class CloseEvent extends Event { |
| } |
| |
| public static void main(String... args) throws Exception { |
| testCloseUnstarted(); |
| testCloseStarted(); |
| testCloseTwice(); |
| testCloseStreaming(); |
| testCloseMySelf(); |
| } |
| |
| private static void testCloseMySelf() throws Exception { |
| log("Entering testCloseMySelf()"); |
| CountDownLatch l1 = new CountDownLatch(1); |
| CountDownLatch l2 = new CountDownLatch(1); |
| RecordingStream r = new RecordingStream(); |
| r.onEvent(e -> { |
| try { |
| l1.await(); |
| r.close(); |
| l2.countDown(); |
| } catch (InterruptedException ie) { |
| throw new Error(ie); |
| } |
| }); |
| r.startAsync(); |
| CloseEvent c = new CloseEvent(); |
| c.commit(); |
| l1.countDown(); |
| l2.await(); |
| log("Leaving testCloseMySelf()"); |
| } |
| |
| private static void testCloseStreaming() throws Exception { |
| log("Entering testCloseStreaming()"); |
| CountDownLatch streaming = new CountDownLatch(1); |
| RecordingStream r = new RecordingStream(); |
| AtomicLong count = new AtomicLong(); |
| r.onEvent(e -> { |
| if (count.incrementAndGet() > 100) { |
| streaming.countDown(); |
| } |
| }); |
| r.startAsync(); |
| var streamingLoop = CompletableFuture.runAsync(() -> { |
| while (true) { |
| CloseEvent c = new CloseEvent(); |
| c.commit(); |
| } |
| }); |
| streaming.await(); |
| r.close(); |
| streamingLoop.cancel(true); |
| log("Leaving testCloseStreaming()"); |
| } |
| |
| private static void testCloseStarted() { |
| log("Entering testCloseStarted()"); |
| RecordingStream r = new RecordingStream(); |
| r.startAsync(); |
| r.close(); |
| log("Leaving testCloseStarted()"); |
| } |
| |
| private static void testCloseUnstarted() { |
| log("Entering testCloseUnstarted()"); |
| RecordingStream r = new RecordingStream(); |
| r.close(); |
| log("Leaving testCloseUnstarted()"); |
| } |
| |
| private static void testCloseTwice() { |
| log("Entering testCloseTwice()"); |
| RecordingStream r = new RecordingStream(); |
| r.startAsync(); |
| r.close(); |
| r.close(); |
| log("Leaving testCloseTwice()"); |
| } |
| |
| private static void log(String msg) { |
| System.out.println(msg); |
| } |
| } |