J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2002 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * @bug 4517622 |
| 26 | * @summary SocketException on first read after error; -1 on subsequent reads |
| 27 | */ |
| 28 | import java.net.*; |
| 29 | import java.io.*; |
| 30 | import java.util.Random; |
| 31 | |
| 32 | public class Test { |
| 33 | |
| 34 | static int TEST_COMBINATIONS = 5; |
| 35 | |
| 36 | // test server that cycles through each combination of response |
| 37 | |
| 38 | static class Server extends Thread { |
| 39 | ServerSocket ss; |
| 40 | |
| 41 | public Server() throws IOException { |
| 42 | ss = new ServerSocket(0); |
| 43 | System.out.println("Server listening on port: " + getPort()); |
| 44 | } |
| 45 | |
| 46 | public void run() { |
| 47 | |
| 48 | int testCombination = 0; |
| 49 | |
| 50 | try { |
| 51 | for (;;) { |
| 52 | Socket s = ss.accept(); |
| 53 | |
| 54 | switch (testCombination) { |
| 55 | case 0: |
| 56 | s.setTcpNoDelay(false); |
| 57 | s.getOutputStream().write(new byte[256]); |
| 58 | s.setSoLinger(true, 0); |
| 59 | break; |
| 60 | |
| 61 | case 1: |
| 62 | s.setTcpNoDelay(true); |
| 63 | s.getOutputStream().write(new byte[256]); |
| 64 | s.setSoLinger(true, 0); |
| 65 | break; |
| 66 | |
| 67 | case 2: |
| 68 | s.getOutputStream().write("hello".getBytes()); |
| 69 | s.setSoLinger(true, 0); |
| 70 | break; |
| 71 | |
| 72 | case 3: |
| 73 | break; /* EOF test */ |
| 74 | |
| 75 | case 4: |
| 76 | s.getOutputStream().write(new byte[256]); |
| 77 | break; |
| 78 | } |
| 79 | |
| 80 | s.close(); |
| 81 | |
| 82 | testCombination = (testCombination + 1) % TEST_COMBINATIONS; |
| 83 | } |
| 84 | } catch (IOException ioe) { |
| 85 | if (!ss.isClosed()) { |
| 86 | System.err.println("Server failed: " + ioe); |
| 87 | } |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | public int getPort() { |
| 92 | return ss.getLocalPort(); |
| 93 | } |
| 94 | |
| 95 | public void shutdown() { |
| 96 | try { |
| 97 | ss.close(); |
| 98 | } catch (IOException ioe) { } |
| 99 | } |
| 100 | |
| 101 | } |
| 102 | |
| 103 | static final int STATE_DATA = 0; |
| 104 | static final int STATE_EOF = 1; |
| 105 | static final int STATE_IOE = 2; |
| 106 | |
| 107 | static void Test(SocketAddress sa) throws Exception { |
| 108 | System.out.println("-----------"); |
| 109 | |
| 110 | Socket s = new Socket(); |
| 111 | s.connect(sa); |
| 112 | |
| 113 | byte b[] = new byte[50]; |
| 114 | int state = STATE_DATA; |
| 115 | boolean failed = false; |
| 116 | |
| 117 | Random rand = new Random(); |
| 118 | |
| 119 | for (int i=0; i<200; i++) { |
| 120 | switch (rand.nextInt(4)) { |
| 121 | case 0: |
| 122 | try { |
| 123 | s.getOutputStream().write("data".getBytes()); |
| 124 | } catch (IOException ioe) { } |
| 125 | break; |
| 126 | |
| 127 | case 1: |
| 128 | try { |
| 129 | int n = s.getInputStream().available(); |
| 130 | |
| 131 | // available should never return > 0 if read |
| 132 | // has already thrown IOE or returned EOF |
| 133 | |
| 134 | if (n > 0 && state != STATE_DATA) { |
| 135 | System.out.println("FAILED!! available: " + n + |
| 136 | " (unexpected as IOE or EOF already received)"); |
| 137 | failed = true; |
| 138 | } |
| 139 | } catch (IOException ioe) { |
| 140 | System.out.println("FAILED!!! available: " + ioe); |
| 141 | failed = true; |
| 142 | } |
| 143 | break; |
| 144 | |
| 145 | case 2: |
| 146 | try { |
| 147 | int n = s.getInputStream().read(b); |
| 148 | |
| 149 | if (n > 0 && state == STATE_IOE) { |
| 150 | System.out.println("FAILED!! read: " + n + |
| 151 | " (unexpected as IOE already thrown)"); |
| 152 | failed = true; |
| 153 | } |
| 154 | |
| 155 | if (n > 0 && state == STATE_EOF) { |
| 156 | System.out.println("FAILED!! read: " + n + |
| 157 | " (unexpected as EOF already received)"); |
| 158 | failed = true; |
| 159 | } |
| 160 | |
| 161 | if (n < 0) { |
| 162 | if (state == STATE_IOE) { |
| 163 | System.out.println("FAILED!! read: EOF " + |
| 164 | " (unexpected as IOE already thrown)"); |
| 165 | failed = true; |
| 166 | } |
| 167 | if (state != STATE_EOF) { |
| 168 | System.out.println("read: EOF"); |
| 169 | state = STATE_EOF; |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | } catch (IOException ioe) { |
| 174 | if (state == STATE_EOF) { |
| 175 | System.out.println("FAILED!! read: " + ioe + |
| 176 | " (unexpected as EOF already received)"); |
| 177 | failed = true; |
| 178 | } |
| 179 | if (state != STATE_IOE) { |
| 180 | System.out.println("read: " + ioe); |
| 181 | state = STATE_IOE; |
| 182 | } |
| 183 | } |
| 184 | break; |
| 185 | |
| 186 | case 3: |
| 187 | try { |
| 188 | Thread.currentThread().sleep(100); |
| 189 | } catch (Exception ie) { } |
| 190 | } |
| 191 | |
| 192 | if (failed) { |
| 193 | failures++; |
| 194 | break; |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | s.close(); |
| 199 | } |
| 200 | |
| 201 | static int failures = 0; |
| 202 | |
| 203 | public static void main(String args[]) throws Exception { |
| 204 | SocketAddress sa = null; |
| 205 | Server svr = null; |
| 206 | |
| 207 | // server mode only |
| 208 | if (args.length > 0) { |
| 209 | if (args[0].equals("-server")) { |
| 210 | svr = new Server(); |
| 211 | svr.start(); |
| 212 | return; |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | // run standalone or connect to remote server |
| 217 | if (args.length > 0) { |
| 218 | InetAddress rh = InetAddress.getByName(args[0]); |
| 219 | int port = Integer.parseInt(args[1]); |
| 220 | sa = new InetSocketAddress(rh, port); |
| 221 | } else { |
| 222 | svr = new Server(); |
| 223 | svr.start(); |
| 224 | |
| 225 | InetAddress lh = InetAddress.getLocalHost(); |
| 226 | sa = new InetSocketAddress(lh, svr.getPort()); |
| 227 | } |
| 228 | |
| 229 | for (int i=0; i<10; i++) { |
| 230 | Test(sa); |
| 231 | } |
| 232 | |
| 233 | if (svr != null) { |
| 234 | svr.shutdown(); |
| 235 | } |
| 236 | |
| 237 | if (failures > 0) { |
| 238 | throw new Exception(failures + " sub-test(s) failed."); |
| 239 | } |
| 240 | } |
| 241 | } |