--- /dev/null 2017-11-09 09:38:01.297999907 +0100 +++ new/test/jdk/jdk/jfr/event/sampling/TestNative.java 2018-04-09 18:35:40.330753211 +0200 @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2017, 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.event.sampling; + +import java.io.File; +import java.nio.file.Paths; +import java.time.Duration; + +import jdk.jfr.FlightRecorder; +import jdk.jfr.Recording; +import jdk.jfr.consumer.RecordedEvent; +import jdk.jfr.consumer.RecordingFile; +import jdk.test.lib.process.OutputAnalyzer; +import jdk.test.lib.process.ProcessTools; + +/* + * @test + * @key jfr + * @library /test/lib + * @modules java.base/jdk.internal.misc + * @run main/native jdk.jfr.event.sampling.TestNative + */ +public class TestNative { + + public final static String EVENT_SETTINGS_FILE = System.getProperty("test.src", ".") + File.separator + "sampling.jfc"; + public final static String JFR_DUMP = "samples.jfr"; + public final static String EXCEPTION = "No native samples found"; + public final static String NATIVE_EVENT = "com.oracle.jdk.NativeMethodSample"; + public static Recording recording; + + public static native void longTime(); + + public static void main(String[] args) throws Exception { + String lib = System.getProperty("test.nativepath"); + ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true, "-Djava.library.path=" + lib, "jdk.jfr.event.sampling.TestNative$Test"); + + OutputAnalyzer output = ProcessTools.executeProcess(pb); + output.shouldHaveExitValue(0); + output.stdoutShouldNotContain("No native samples found"); + } + + static class Test { + public static void main(String[] args) throws Exception { + System.loadLibrary("TestNative"); + FlightRecorder.getFlightRecorder(); + recording = new Recording(); + recording.setToDisk(true); + recording.setDestination(Paths.get(JFR_DUMP)); + recording.enable(NATIVE_EVENT).withPeriod(Duration.ofMillis(10)); + recording.start(); + + longTime(); + + recording.stop(); + recording.close(); + + try (RecordingFile rf = new RecordingFile(Paths.get(JFR_DUMP))) { + while (rf.hasMoreEvents()) { + RecordedEvent re = rf.readEvent(); + if (re.getEventType().getName().equals(NATIVE_EVENT)) { + return; + } + } + } + + throw new Exception("No native samples found"); + } + } +}