| /* |
| * Copyright (c) 1998, 2010, 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 4156625 |
| @summary Socket.setSoTimeout(T) can cause incorrect delay of T |
| under green threads |
| @author Tom Rodriguez |
| */ |
| |
| /* |
| * This program depends a bit on the particular behaviour of the green |
| * threads scheduler to produce the problem, but given that the underlying |
| * bug a green threads bug, I think that's OK. |
| */ |
| |
| import java.net.*; |
| |
| public class SoTimeout implements Runnable { |
| static ServerSocket serverSocket; |
| static long timeWritten; |
| static InetAddress addr; |
| static int port; |
| |
| public static void main(String[] args) throws Exception { |
| addr = InetAddress.getLocalHost(); |
| serverSocket = new ServerSocket(0); |
| port = serverSocket.getLocalPort(); |
| |
| byte[] b = new byte[12]; |
| Thread t = new Thread(new SoTimeout()); |
| t.start(); |
| |
| Socket s = serverSocket.accept(); |
| serverSocket.close(); |
| |
| // set a 5 second timeout on the socket |
| s.setSoTimeout(5000); |
| |
| s.getInputStream().read(b, 0, b.length); |
| s.close(); |
| |
| long waited = System.currentTimeMillis() - timeWritten; |
| |
| // this sequence should complete fairly quickly and if it |
| // takes something resembling the the SoTimeout value then |
| // we are probably incorrectly blocking and not waking up |
| if (waited > 2000) { |
| throw new Exception("shouldn't take " + waited + " to complete"); |
| } |
| } |
| |
| public void run() { |
| try { |
| byte[] b = new byte[12]; |
| Socket s = new Socket(addr, port); |
| |
| Thread.yield(); |
| timeWritten = System.currentTimeMillis(); |
| s.getOutputStream().write(b, 0, 12); |
| s.close(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| } |