--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/event/io/TestFileChannelEvents.java Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,122 @@
+/*
+ * 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 java.io.File;
+import java.io.RandomAccessFile;
+import java.nio.ByteBuffer;
+import java.nio.channels.FileChannel;
+import java.time.Duration;
+import java.util.ArrayList;
+import java.util.List;
+
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.test.lib.jfr.Events;
+
+/*
+ * @test
+ * @key jfr
+ * @library /test/lib /test/jdk
+ * @run main/othervm jdk.jfr.event.io.TestFileChannelEvents
+ */
+public class TestFileChannelEvents {
+ public static void main(String[] args) throws Throwable {
+ File tmp = File.createTempFile("TestFileChannelEvents", ".tmp", new File("."));
+ tmp.deleteOnExit();
+ Recording recording = new Recording();
+ List<IOEvent> expectedEvents = new ArrayList<>();
+
+ try (RandomAccessFile rf = new RandomAccessFile(tmp, "rw"); FileChannel ch = rf.getChannel();) {
+ recording.enable(IOEvent.EVENT_FILE_FORCE).withThreshold(Duration.ofMillis(0));
+ recording.enable(IOEvent.EVENT_FILE_READ).withThreshold(Duration.ofMillis(0));
+ recording.enable(IOEvent.EVENT_FILE_WRITE).withThreshold(Duration.ofMillis(0));
+ recording.start();
+
+ ByteBuffer bufA = ByteBuffer.allocateDirect(10);
+ ByteBuffer bufB = ByteBuffer.allocateDirect(20);
+ bufA.put("1234567890".getBytes());
+ bufB.put("1234567890".getBytes());
+
+ // test write(ByteBuffer)
+ bufA.flip();
+ long size = ch.write(bufA);
+ expectedEvents.add(IOEvent.createFileWriteEvent(size, tmp));
+
+ // test write(ByteBuffer, long)
+ bufA.flip();
+ size = ch.write(bufA, bufA.capacity() / 2);
+ expectedEvents.add(IOEvent.createFileWriteEvent(size, tmp));
+
+ // test write(ByteBuffer[])
+ bufA.flip();
+ bufA.limit(5);
+ bufB.flip();
+ bufB.limit(5);
+ size = ch.write(new ByteBuffer[] { bufA, bufB });
+ expectedEvents.add(IOEvent.createFileWriteEvent(size, tmp));
+
+ // test force(boolean)
+ ch.force(true);
+ expectedEvents.add(IOEvent.createFileForceEvent(tmp));
+
+ // reset file
+ ch.position(0);
+
+ // test read(ByteBuffer)
+ bufA.clear();
+ size = ch.read(bufA);
+ expectedEvents.add(IOEvent.createFileReadEvent(size, tmp));
+
+ // test read(ByteBuffer, long)
+ bufA.clear();
+ size = ch.read(bufA, bufA.capacity() / 2);
+ expectedEvents.add(IOEvent.createFileReadEvent(size, tmp));
+
+ // test read(ByteBuffer[])
+ bufA.clear();
+ bufA.limit(5);
+ bufB.clear();
+ bufB.limit(5);
+ size = ch.read(new ByteBuffer[] { bufA, bufB });
+ expectedEvents.add(IOEvent.createFileReadEvent(size, tmp));
+
+ // Read at EOF. Should get size -1 in event.
+ ch.position(ch.size());
+ bufA.clear();
+ size = ch.read(bufA);
+ assertEquals(size, -1L, "Expected size -1 when read at EOF");
+ expectedEvents.add(IOEvent.createFileReadEvent(size, tmp));
+
+ ch.close();
+ recording.stop();
+ List<RecordedEvent> events = Events.fromRecording(recording);
+ IOHelper.verifyEqualsInOrder(events, expectedEvents);
+ }
+ }
+}