| /* |
| * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @bug 4517622 |
| * @summary SocketException on first read after error; -1 on subsequent reads |
| */ |
| import java.net.*; |
| import java.io.*; |
| import java.util.Random; |
| |
| public class Test { |
| |
| static int TEST_COMBINATIONS = 5; |
| |
| // test server that cycles through each combination of response |
| |
| static class Server extends Thread { |
| ServerSocket ss; |
| |
| public Server() throws IOException { |
| ss = new ServerSocket(0); |
| System.out.println("Server listening on port: " + getPort()); |
| } |
| |
| public void run() { |
| |
| int testCombination = 0; |
| |
| try { |
| for (;;) { |
| Socket s = ss.accept(); |
| |
| switch (testCombination) { |
| case 0: |
| s.setTcpNoDelay(false); |
| s.getOutputStream().write(new byte[256]); |
| s.setSoLinger(true, 0); |
| break; |
| |
| case 1: |
| s.setTcpNoDelay(true); |
| s.getOutputStream().write(new byte[256]); |
| s.setSoLinger(true, 0); |
| break; |
| |
| case 2: |
| s.getOutputStream().write("hello".getBytes()); |
| s.setSoLinger(true, 0); |
| break; |
| |
| case 3: |
| break; /* EOF test */ |
| |
| case 4: |
| s.getOutputStream().write(new byte[256]); |
| break; |
| } |
| |
| s.close(); |
| |
| testCombination = (testCombination + 1) % TEST_COMBINATIONS; |
| } |
| } catch (IOException ioe) { |
| if (!ss.isClosed()) { |
| System.err.println("Server failed: " + ioe); |
| } |
| } |
| } |
| |
| public int getPort() { |
| return ss.getLocalPort(); |
| } |
| |
| public void shutdown() { |
| try { |
| ss.close(); |
| } catch (IOException ioe) { } |
| } |
| |
| } |
| |
| static final int STATE_DATA = 0; |
| static final int STATE_EOF = 1; |
| static final int STATE_IOE = 2; |
| |
| static void Test(SocketAddress sa) throws Exception { |
| System.out.println("-----------"); |
| |
| Socket s = new Socket(); |
| s.connect(sa); |
| |
| byte b[] = new byte[50]; |
| int state = STATE_DATA; |
| boolean failed = false; |
| |
| Random rand = new Random(); |
| |
| for (int i=0; i<200; i++) { |
| switch (rand.nextInt(4)) { |
| case 0: |
| try { |
| s.getOutputStream().write("data".getBytes()); |
| } catch (IOException ioe) { } |
| break; |
| |
| case 1: |
| try { |
| int n = s.getInputStream().available(); |
| |
| // available should never return > 0 if read |
| // has already thrown IOE or returned EOF |
| |
| if (n > 0 && state != STATE_DATA) { |
| System.out.println("FAILED!! available: " + n + |
| " (unexpected as IOE or EOF already received)"); |
| failed = true; |
| } |
| } catch (IOException ioe) { |
| System.out.println("FAILED!!! available: " + ioe); |
| failed = true; |
| } |
| break; |
| |
| case 2: |
| try { |
| int n = s.getInputStream().read(b); |
| |
| if (n > 0 && state == STATE_IOE) { |
| System.out.println("FAILED!! read: " + n + |
| " (unexpected as IOE already thrown)"); |
| failed = true; |
| } |
| |
| if (n > 0 && state == STATE_EOF) { |
| System.out.println("FAILED!! read: " + n + |
| " (unexpected as EOF already received)"); |
| failed = true; |
| } |
| |
| if (n < 0) { |
| if (state == STATE_IOE) { |
| System.out.println("FAILED!! read: EOF " + |
| " (unexpected as IOE already thrown)"); |
| failed = true; |
| } |
| if (state != STATE_EOF) { |
| System.out.println("read: EOF"); |
| state = STATE_EOF; |
| } |
| } |
| |
| } catch (IOException ioe) { |
| if (state == STATE_EOF) { |
| System.out.println("FAILED!! read: " + ioe + |
| " (unexpected as EOF already received)"); |
| failed = true; |
| } |
| if (state != STATE_IOE) { |
| System.out.println("read: " + ioe); |
| state = STATE_IOE; |
| } |
| } |
| break; |
| |
| case 3: |
| try { |
| Thread.currentThread().sleep(100); |
| } catch (Exception ie) { } |
| } |
| |
| if (failed) { |
| failures++; |
| break; |
| } |
| } |
| |
| s.close(); |
| } |
| |
| static int failures = 0; |
| |
| public static void main(String args[]) throws Exception { |
| SocketAddress sa = null; |
| Server svr = null; |
| |
| // server mode only |
| if (args.length > 0) { |
| if (args[0].equals("-server")) { |
| svr = new Server(); |
| svr.start(); |
| return; |
| } |
| } |
| |
| // run standalone or connect to remote server |
| if (args.length > 0) { |
| InetAddress rh = InetAddress.getByName(args[0]); |
| int port = Integer.parseInt(args[1]); |
| sa = new InetSocketAddress(rh, port); |
| } else { |
| svr = new Server(); |
| svr.start(); |
| |
| InetAddress lh = InetAddress.getLocalHost(); |
| sa = new InetSocketAddress(lh, svr.getPort()); |
| } |
| |
| for (int i=0; i<10; i++) { |
| Test(sa); |
| } |
| |
| if (svr != null) { |
| svr.shutdown(); |
| } |
| |
| if (failures > 0) { |
| throw new Exception(failures + " sub-test(s) failed."); |
| } |
| } |
| } |