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 }