1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.jfr.event.io;
  27 
  28 import static jdk.test.lib.Asserts.assertEquals;
  29 
  30 import java.io.IOException;
  31 import java.nio.ByteBuffer;
  32 import java.nio.channels.ServerSocketChannel;
  33 import java.nio.channels.SocketChannel;
  34 import java.time.Duration;
  35 import java.util.ArrayList;
  36 import java.util.List;
  37 
  38 import jdk.jfr.Recording;
  39 import jdk.jfr.consumer.RecordedEvent;
  40 import jdk.test.lib.jfr.Events;
  41 import jdk.test.lib.thread.TestThread;
  42 import jdk.test.lib.thread.XRun;
  43 
  44 /**
  45  * @test
  46  * @key jfr
  47  *
  48  * @library /lib /
  49  * @run main/othervm jdk.jfr.event.io.TestSocketChannelEvents
  50  */
  51 public class TestSocketChannelEvents {
  52     private static final int bufSizeA = 10;
  53     private static final int bufSizeB = 20;
  54 
  55     private List<IOEvent> expectedEvents = new ArrayList<>();
  56     private synchronized void addExpectedEvent(IOEvent event) {
  57         expectedEvents.add(event);
  58     }
  59 
  60     public static void main(String[] args) throws Throwable {
  61         new TestSocketChannelEvents().test();
  62     }
  63 
  64     public void test() throws Throwable {
  65         Recording recording = new Recording();
  66 
  67         try (ServerSocketChannel ss = ServerSocketChannel.open()) {
  68             recording.enable(IOEvent.EVENT_SOCKET_READ).withThreshold(Duration.ofMillis(0));
  69             recording.enable(IOEvent.EVENT_SOCKET_WRITE).withThreshold(Duration.ofMillis(0));
  70             recording.start();
  71 
  72             ss.socket().setReuseAddress(true);
  73             ss.socket().bind(null);
  74 
  75             TestThread readerThread = new TestThread(new XRun() {
  76                 @Override
  77                 public void xrun() throws IOException {
  78                     ByteBuffer bufA = ByteBuffer.allocate(bufSizeA);
  79                     ByteBuffer bufB = ByteBuffer.allocate(bufSizeB);
  80                     try (SocketChannel sc = ss.accept()) {
  81                         int readSize = sc.read(bufA);
  82                         assertEquals(readSize, bufSizeA, "Wrong readSize bufA");
  83                         addExpectedEvent(IOEvent.createSocketReadEvent(bufSizeA, sc.socket()));
  84 
  85                         bufA.clear();
  86                         bufA.limit(1);
  87                         readSize = (int)sc.read(new ByteBuffer[] { bufA, bufB });
  88                         assertEquals(readSize, 1 + bufSizeB, "Wrong readSize 1+bufB");
  89                         addExpectedEvent(IOEvent.createSocketReadEvent(readSize, sc.socket()));
  90 
  91                         // We try to read, but client have closed. Should get EOF.
  92                         bufA.clear();
  93                         bufA.limit(1);
  94                         readSize = sc.read(bufA);
  95                         assertEquals(readSize, -1, "Wrong readSize at EOF");
  96                         addExpectedEvent(IOEvent.createSocketReadEvent(-1, sc.socket()));
  97                     }
  98                 }
  99             });
 100             readerThread.start();
 101 
 102             try (SocketChannel sc = SocketChannel.open(ss.socket().getLocalSocketAddress())) {
 103                 ByteBuffer bufA = ByteBuffer.allocateDirect(bufSizeA);
 104                 ByteBuffer bufB = ByteBuffer.allocateDirect(bufSizeB);
 105                 for (int i = 0; i < bufSizeA; ++i) {
 106                     bufA.put((byte)('a' + (i % 20)));
 107                 }
 108                 for (int i = 0; i < bufSizeB; ++i) {
 109                     bufB.put((byte)('A' + (i % 20)));
 110                 }
 111                 bufA.flip();
 112                 bufB.flip();
 113 
 114                 sc.write(bufA);
 115                 addExpectedEvent(IOEvent.createSocketWriteEvent(bufSizeA, sc.socket()));
 116 
 117                 bufA.clear();
 118                 bufA.limit(1);
 119                 int bytesWritten = (int)sc.write(new ByteBuffer[] { bufA, bufB });
 120                 assertEquals(bytesWritten, 1 + bufSizeB, "Wrong bytesWritten 1+bufB");
 121                 addExpectedEvent(IOEvent.createSocketWriteEvent(bytesWritten, sc.socket()));
 122             }
 123 
 124             readerThread.joinAndThrow();
 125             recording.stop();
 126             List<RecordedEvent> events= Events.fromRecording(recording);
 127             IOHelper.verifyEquals(events, expectedEvents);
 128         }
 129     }
 130 }