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 * @library /test/lib /test/jdk
48 * @run main/othervm jdk.jfr.event.io.TestSocketChannelEvents
49 */
50 public class TestSocketChannelEvents {
51 private static final int bufSizeA = 10;
52 private static final int bufSizeB = 20;
53
54 private List<IOEvent> expectedEvents = new ArrayList<>();
55 private synchronized void addExpectedEvent(IOEvent event) {
56 expectedEvents.add(event);
57 }
58
59 public static void main(String[] args) throws Throwable {
60 new TestSocketChannelEvents().test();
61 }
62
63 public void test() throws Throwable {
64 Recording recording = new Recording();
65
66 try (ServerSocketChannel ss = ServerSocketChannel.open()) {
67 recording.enable(IOEvent.EVENT_SOCKET_READ).withThreshold(Duration.ofMillis(0));
68 recording.enable(IOEvent.EVENT_SOCKET_WRITE).withThreshold(Duration.ofMillis(0));
69 recording.start();
70
71 ss.socket().setReuseAddress(true);
72 ss.socket().bind(null);
73
74 TestThread readerThread = new TestThread(new XRun() {
75 @Override
76 public void xrun() throws IOException {
77 ByteBuffer bufA = ByteBuffer.allocate(bufSizeA);
78 ByteBuffer bufB = ByteBuffer.allocate(bufSizeB);
79 try (SocketChannel sc = ss.accept()) {
80 int readSize = sc.read(bufA);
81 assertEquals(readSize, bufSizeA, "Wrong readSize bufA");
82 addExpectedEvent(IOEvent.createSocketReadEvent(bufSizeA, sc.socket()));
83
84 bufA.clear();
85 bufA.limit(1);
86 readSize = (int)sc.read(new ByteBuffer[] { bufA, bufB });
87 assertEquals(readSize, 1 + bufSizeB, "Wrong readSize 1+bufB");
88 addExpectedEvent(IOEvent.createSocketReadEvent(readSize, sc.socket()));
89
90 // We try to read, but client have closed. Should get EOF.
91 bufA.clear();
92 bufA.limit(1);
93 readSize = sc.read(bufA);
94 assertEquals(readSize, -1, "Wrong readSize at EOF");
95 addExpectedEvent(IOEvent.createSocketReadEvent(-1, sc.socket()));
96 }
97 }
98 });
99 readerThread.start();
100
101 try (SocketChannel sc = SocketChannel.open(ss.socket().getLocalSocketAddress())) {
102 ByteBuffer bufA = ByteBuffer.allocateDirect(bufSizeA);
103 ByteBuffer bufB = ByteBuffer.allocateDirect(bufSizeB);
104 for (int i = 0; i < bufSizeA; ++i) {
105 bufA.put((byte)('a' + (i % 20)));
106 }
107 for (int i = 0; i < bufSizeB; ++i) {
108 bufB.put((byte)('A' + (i % 20)));
109 }
110 bufA.flip();
111 bufB.flip();
112
113 sc.write(bufA);
114 addExpectedEvent(IOEvent.createSocketWriteEvent(bufSizeA, sc.socket()));
115
116 bufA.clear();
117 bufA.limit(1);
118 int bytesWritten = (int)sc.write(new ByteBuffer[] { bufA, bufB });
119 assertEquals(bytesWritten, 1 + bufSizeB, "Wrong bytesWritten 1+bufB");
120 addExpectedEvent(IOEvent.createSocketWriteEvent(bytesWritten, sc.socket()));
121 }
122
123 readerThread.joinAndThrow();
124 recording.stop();
125 List<RecordedEvent> events= Events.fromRecording(recording);
126 IOHelper.verifyEquals(events, expectedEvents);
127 }
128 }
129 }