1/*
2 * Copyright (c) 2015, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/* @test
25 * @bug 8071599
26 * @run main/othervm SendUrgentData
27 * @run main/othervm SendUrgentData -inline
28 * @summary Test sending of urgent data.
29 */
30
31import java.io.IOException;
32import java.net.InetSocketAddress;
33import java.net.SocketAddress;
34import java.net.SocketException;
35import java.nio.ByteBuffer;
36import java.nio.channels.ServerSocketChannel;
37import java.nio.channels.SocketChannel;
38
39public class SendUrgentData {
40
41    /**
42     * The arguments may be one of the following:
43     * <ol>
44     * <li>-server</li>
45     * <li>-client host port [-inline]</li>
46     * <li>[-inline]</li>
47     * </ol>
48     * The first option creates a standalone server, the second a standalone
49     * client, and the third a self-contained server-client pair on the
50     * local host.
51     *
52     * @param args
53     * @throws Exception
54     */
55    public static void main(String[] args) throws Exception {
56
57        ServerSocketChannelThread serverThread
58                = new ServerSocketChannelThread("SendUrgentDataServer");
59        serverThread.start();
60        boolean b = serverThread.isAlive();
61
62        String host = null;
63        int port = 0;
64        boolean inline = false;
65        if (args.length > 0 && args[0].equals("-server")) {
66            System.out.println(serverThread.getAddress());
67            Thread.currentThread().suspend();
68        } else {
69            if (args.length > 0 && args[0].equals("-client")) {
70                host = args[1];
71                port = Integer.parseInt(args[2]);
72                if (args.length > 3) {
73                    inline = args[2].equals("-inline");
74                }
75            } else {
76                host = "localhost";
77                port = serverThread.getAddress().getPort();
78                if (args.length > 0) {
79                    inline = args[0].equals("-inline");
80                }
81            }
82        }
83
84        System.out.println("OOB Inline : "+inline);
85
86        SocketAddress sa = new InetSocketAddress(host, port);
87
88        try (SocketChannel sc = SocketChannel.open(sa)) {
89            sc.configureBlocking(false);
90            sc.socket().setOOBInline(inline);
91
92            sc.socket().sendUrgentData(0);
93            System.out.println("wrote 1 OOB byte");
94
95            ByteBuffer bb = ByteBuffer.wrap(new byte[100 * 1000]);
96
97            int blocked = 0;
98            long total = 0;
99
100            int n;
101            do {
102                n = sc.write(bb);
103                if (n == 0) {
104                    System.out.println("blocked, wrote " + total + " so far");
105                    if (++blocked == 10) {
106                        break;
107                    }
108                    Thread.sleep(100);
109                } else {
110                    total += n;
111                    bb.rewind();
112                }
113            } while (n > 0);
114
115            long attempted = 0;
116            while (attempted < total) {
117                bb.rewind();
118                n = sc.write(bb);
119                System.out.println("wrote " + n + " normal bytes");
120                attempted += bb.capacity();
121
122                String osName = System.getProperty("os.name").toLowerCase();
123
124                try {
125                    sc.socket().sendUrgentData(0);
126                } catch (IOException ex) {
127                    if (osName.contains("linux")) {
128                        if (!ex.getMessage().contains("Socket buffer full")) {
129                            throw new RuntimeException("Unexpected message", ex);
130                        }
131                    } else if (osName.contains("os x") || osName.contains("mac")) {
132                        if (!ex.getMessage().equals("No buffer space available")) {
133                            throw new RuntimeException("Unexpected message", ex);
134                        }
135                    } else if (osName.contains("windows")) {
136                        if (!(ex instanceof SocketException)) {
137                            throw new RuntimeException("Unexpected exception", ex);
138                        } else if (!ex.getMessage().contains("Resource temporarily unavailable")) {
139                            throw new RuntimeException("Unexpected message", ex);
140                        }
141                    } else {
142                        throw new RuntimeException("Unexpected IOException", ex);
143                    }
144                }
145
146                try {
147                    Thread.sleep(100);
148                } catch (InterruptedException ex) {
149                    // don't want to fail on this so just print trace and break
150                    ex.printStackTrace();
151                    break;
152                }
153            }
154        } finally {
155            serverThread.close();
156        }
157    }
158
159    static class ServerSocketChannelThread extends Thread {
160
161        private ServerSocketChannel ssc;
162
163        private ServerSocketChannelThread(String name) {
164            super(name);
165            try {
166                ssc = ServerSocketChannel.open();
167                ssc.bind(new InetSocketAddress((0)));
168            } catch (IOException ex) {
169                throw new RuntimeException(ex);
170            }
171        }
172
173        public void run() {
174            while (ssc.isOpen()) {
175                try {
176                    Thread.sleep(100);
177                } catch (InterruptedException ex) {
178                    throw new RuntimeException(ex);
179                }
180            }
181            try {
182                ssc.close();
183            } catch (IOException ex) {
184                throw new RuntimeException(ex);
185            }
186            System.out.println("ServerSocketChannelThread exiting ...");
187        }
188
189        public InetSocketAddress getAddress() throws IOException {
190            if (ssc == null) {
191                throw new IllegalStateException("ServerSocketChannel not created");
192            }
193
194            return (InetSocketAddress) ssc.getLocalAddress();
195        }
196
197        public void close() {
198            try {
199                ssc.close();
200            } catch (IOException ex) {
201                throw new RuntimeException(ex);
202            }
203        }
204    }
205}
206