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