--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/event/io/TestDisabledEvents.java Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,133 @@
+/*
+ * 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.event.io;
+
+import static jdk.test.lib.Asserts.assertEquals;
+import static jdk.test.lib.Asserts.assertNotEquals;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.RandomAccessFile;
+import java.nio.ByteBuffer;
+import java.nio.channels.FileChannel;
+
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.test.lib.jfr.Events;
+
+/*
+ * @test
+ * @summary Test with FlightRecorder enabled but with the events disabled.
+ * @key jfr
+ * @library /test/lib /test/jdk
+ * @run main/othervm jdk.jfr.event.io.TestDisabledEvents
+ */
+
+// Verify that IO operations are correct and that no events are generated.
+public class TestDisabledEvents {
+
+ private static final int writeInt = 'A';
+ private static final byte[] writeBuf = { 'B', 'C', 'D' };
+
+ public static void main(String[] args) throws Throwable {
+ File tmp = File.createTempFile("TestDisabledEvents", ".tmp", new File("."));
+ tmp.deleteOnExit();
+ Recording recording = new Recording();
+ recording.disable(IOEvent.EVENT_FILE_READ);
+ recording.disable(IOEvent.EVENT_FILE_WRITE);
+ recording.start();
+
+ useRandomAccessFile(tmp);
+ useFileStreams(tmp);
+ useFileChannel(tmp);
+
+ recording.stop();
+ for (RecordedEvent event : Events.fromRecording(recording)) {
+ final String eventName = event.getEventType().getName();
+ System.out.println("Got eventName:" + eventName);
+ assertNotEquals(eventName, IOEvent.EVENT_FILE_READ, "Got disabled read event");
+ assertNotEquals(eventName, IOEvent.EVENT_FILE_WRITE, "Got disabled write event");
+ }
+ }
+
+ private static void useRandomAccessFile(File tmp) throws Throwable {
+ tmp.delete();
+ try (RandomAccessFile ras = new RandomAccessFile(tmp, "rw")) {
+ ras.write(writeInt);
+ ras.write(writeBuf);
+ ras.seek(0);
+ int readInt = ras.read();
+ assertEquals(readInt, writeInt, "Wrong readInt");
+ byte[] readBuf = new byte[writeBuf.length];
+ int readSize = ras.read(readBuf);
+ assertEquals(readSize, writeBuf.length, "Wrong readSize");
+ // Try to read more which should generate EOF.
+ readInt = ras.read();
+ assertEquals(readInt, -1, "Wrong readInt after EOF");
+ }
+ }
+
+ private static void useFileStreams(File tmp) throws Throwable {
+ tmp.delete();
+ try (FileOutputStream fos = new FileOutputStream(tmp)) {
+ fos.write(writeInt);
+ fos.write(writeBuf);
+ }
+
+ try (FileInputStream fis = new FileInputStream(tmp)) {
+ int readInt = fis.read();
+ assertEquals(readInt, writeInt, "Wrong readInt");
+ byte[] readBuf = new byte[writeBuf.length];
+ int readSize = fis.read(readBuf);
+ assertEquals(readSize, writeBuf.length, "Wrong readSize");
+ // Try to read more which should generate EOF.
+ readInt = fis.read();
+ assertEquals(readInt, -1, "Wrong readInt after EOF");
+ }
+ }
+
+ private static void useFileChannel(File tmp) throws Throwable {
+ tmp.delete();
+ try (RandomAccessFile rf = new RandomAccessFile(tmp, "rw");
+ FileChannel ch = rf.getChannel()) {
+ final String bufContent = "0123456789";
+ final int bufSize = bufContent.length();
+ ByteBuffer writeBuf = ByteBuffer.allocateDirect(bufSize);
+ writeBuf.put(bufContent.getBytes());
+
+ writeBuf.flip();
+ int writeSize = ch.write(writeBuf);
+ assertEquals(writeSize, bufSize, "Wrong writeSize for FileChannel");
+
+ ch.position(0);
+ ByteBuffer readBuf = ByteBuffer.allocateDirect(bufSize);
+ int readSize = ch.read(readBuf);
+ assertEquals(readSize, bufSize, "Wrong readSize full for FileChannel");
+ assertEquals(0, writeBuf.compareTo(readBuf), "Unexpected readBuf content");
+ }
+ }
+}