--- /dev/null 2017-11-09 09:38:01.297999907 +0100 +++ new/test/jdk/jdk/jfr/api/recording/destination/TestDestMultiple.java 2018-04-09 17:09:27.865437191 +0200 @@ -0,0 +1,110 @@ +/* + * Copyright (c) 2018, 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.recording.destination; + +import java.nio.file.Files; +import java.nio.file.Path; +import java.nio.file.Paths; +import java.util.List; + +import jdk.jfr.Recording; +import jdk.jfr.consumer.RecordedEvent; +import jdk.jfr.consumer.RecordingFile; +import jdk.test.lib.Asserts; +import jdk.test.lib.jfr.Events; +import jdk.test.lib.jfr.SimpleEventHelper; + +/* + * @test + * @summary Test setDestination with concurrent recordings + * @key jfr + * @library /test/lib + * @run main/othervm -Xlog:jfr=trace jdk.jfr.api.recording.destination.TestDestMultiple + */ +public class TestDestMultiple { + + public static void main(String[] args) throws Throwable { + Recording rA = new Recording(); + Recording rB = new Recording(); + + Path destA = Paths.get(".", "recA.jfr"); + Path destB = Paths.get(".", "recB.jfr"); + rA.setDestination(destA); + rB.setDestination(destB); + + // Enable event in one recording and disable in the other. + // Both recordings should still get the events, since we always + // get the "union" of all settings. + SimpleEventHelper.enable(rA, true); + SimpleEventHelper.enable(rB, false); + + SimpleEventHelper.createEvent(0); // To no recording + + rA.start(); + SimpleEventHelper.createEvent(1); // Only to recA + + rB.start(); + SimpleEventHelper.createEvent(2); // To both recordings + + rA.stop(); + + // This event will not be in recB. + // The reason is that recA has stopped so event is no longer enabled. + SimpleEventHelper.createEvent(3); + + // Enable the event and create a new event for recB + SimpleEventHelper.enable(rB, true); + SimpleEventHelper.createEvent(4); + + rB.stop(); + SimpleEventHelper.createEvent(5); // To no recording + + rB.close(); + rA.close(); + + verifyRecording(destA, 1, 2); + verifyRecording(destB, 2, 4); + } + + private static void verifyRecording(Path path, int... ids) throws Exception { + Asserts.assertTrue(Files.exists(path), "Recording file does not exist: " + path); + int countEvent = 0; + List events = RecordingFile.readAllEvents(path); + for (RecordedEvent event : events) { + int id = Events.assertField(event, "id").getValue(); + System.out.printf("Recording '%s' id=%d%n", path, id); + } + for (RecordedEvent event : events) { + int id = Events.assertField(event, "id").getValue(); + System.out.printf("Recording '%s' id=%d%n", path, id); + Asserts.assertTrue(ids.length > countEvent, "Found extra event"); + Events.assertField(event, "id").equal(ids[countEvent]); + ++countEvent; + } + // We expect exactly 4 events in each file. 2 events * 2 chunks + Asserts.assertEquals(countEvent, ids.length, "Found too few events"); + } +}