| /* |
| * Copyright (c) 2010, 2012, 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. |
| */ |
| |
| /* @test |
| * @bug 4521942 |
| * @summary Ensure that InputStreamReaders work properly |
| * when the underlying byte stream times out |
| */ |
| |
| import java.io.Closeable; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.InterruptedIOException; |
| import java.io.OutputStreamWriter; |
| import java.io.PrintStream; |
| import java.io.Reader; |
| import java.io.Writer; |
| import java.net.ServerSocket; |
| import java.net.Socket; |
| |
| public class StreamTimeout { |
| static final PrintStream log = System.err; |
| static String charset = "US-ASCII"; |
| |
| private static class Client extends Thread implements Closeable { |
| private final Socket so; |
| |
| Client(int port) throws IOException { |
| so = new Socket("127.0.0.1", port); |
| } |
| |
| @Override |
| public void run() { |
| try { |
| Writer wr = new OutputStreamWriter(so.getOutputStream(), |
| charset); |
| wr.write("ab"); |
| wr.flush(); |
| } catch (IOException x) { |
| log.print("Unexpected exception in writer: "); |
| x.printStackTrace(); |
| } |
| } |
| |
| @Override |
| public void close() throws IOException { |
| so.close(); |
| } |
| } |
| |
| private static void gobble(InputStream is, Reader rd, |
| int ec, boolean force) |
| throws Exception |
| { |
| int a = is.available(); |
| boolean r = rd.ready(); |
| log.print("" + a + " bytes available, " |
| + "reader " + (r ? "" : "not ") + "ready"); |
| if (!r && !force) { |
| log.println(); |
| return; |
| } |
| int c; |
| try { |
| c = rd.read(); |
| } catch (InterruptedIOException x) { |
| log.println(); |
| throw x; |
| } |
| log.println(", read() ==> " |
| + (c >= 0 ? ("'" + (char)c + "'" ): "EOF")); |
| if (c != ec) |
| throw new Exception("Incorrect value read: Expected " |
| + ec + ", read " + (char)c); |
| } |
| |
| public static void main(String[] args) throws Exception { |
| |
| if (args.length > 0) |
| charset = args[0]; |
| |
| try(ServerSocket ss = new ServerSocket(0); |
| Client cl = new Client(ss.getLocalPort())) { |
| |
| cl.start(); |
| |
| try(Socket s = ss.accept()) { |
| s.setSoTimeout(150); |
| |
| try(InputStream is = s.getInputStream(); |
| Reader rd = new InputStreamReader(is, charset)) { |
| |
| while (is.available() <= 0) |
| Thread.yield(); |
| |
| gobble(is, rd, 'a', false); |
| gobble(is, rd, 'b', false); |
| gobble(is, rd, -1, false); |
| |
| boolean caught = false; |
| try { |
| gobble(is, rd, -1, true); |
| } catch (InterruptedIOException e) { |
| log.println("Read timed out, as expected"); |
| caught = true; |
| } |
| if (!caught) { |
| log.println("Read did not time out, test inapplicable"); |
| return; |
| } |
| |
| caught = false; |
| try { |
| gobble(is, rd, -1, true); |
| } catch (InterruptedIOException x) { |
| log.println("Second read timed out, as expected"); |
| caught = true; |
| } |
| if (!caught) |
| throw new Exception("Second read completed"); |
| } |
| } |
| |
| cl.join(); |
| } |
| } |
| } |