0N/A/*
2362N/A * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A/**
0N/A * @test
0N/A * @bug 4433616
0N/A * @summary Test that packet discarding is done at impl level
0N/A */
0N/Aimport java.net.*;
0N/A
0N/Apublic class CheckDiscard {
0N/A
0N/A CheckDiscard() throws Exception {
0N/A
0N/A DatagramSocket s = new DatagramSocket();
0N/A
0N/A /*
0N/A * Create two sender threads
0N/A */
0N/A Sender s1 = new Sender( s.getLocalPort() );
0N/A Sender s2 = new Sender( s.getLocalPort() );
0N/A
0N/A /*
0N/A * "connect" to sender 1
0N/A */
0N/A InetAddress ia = InetAddress.getLocalHost();
0N/A s.connect( ia, s1.getLocalPort() );
0N/A
0N/A /*
0N/A * Kick off the senders
0N/A */
0N/A (new Thread(s1)).start();
0N/A (new Thread(s2)).start();
0N/A
0N/A /*
0N/A * Receive packets and verify that they came from the
0N/A * right sender
0N/A */
0N/A byte b[] = new byte[512];
0N/A DatagramPacket p = new DatagramPacket(b, b.length);
0N/A s.setSoTimeout(4000);
0N/A try {
0N/A for (int i=0; i<20; i++) {
0N/A s.receive(p);
0N/A if ((p.getPort() != s1.getLocalPort()) ||
0N/A (!p.getAddress().equals(ia))) {
0N/A throw new Exception("Received packet from wrong sender");
0N/A }
0N/A }
0N/A } catch (SocketTimeoutException e) {
0N/A }
0N/A
0N/A /*
0N/A * Finally check if either sender threw an exception
0N/A */
0N/A Exception e;
0N/A e = s1.getException();
0N/A if (e != null) throw e;
0N/A e = s2.getException();
0N/A if (e != null) throw e;
0N/A }
0N/A
0N/A public static void main(String args[]) throws Exception {
0N/A new CheckDiscard();
0N/A }
0N/A
0N/A
0N/A
0N/A public class Sender implements Runnable {
0N/A
0N/A Exception exc = null;
0N/A DatagramSocket s;
0N/A int port;
0N/A
0N/A Sender(int port) throws Exception {
0N/A s = new DatagramSocket();
0N/A this.port = port;
0N/A }
0N/A
0N/A public int getLocalPort() {
0N/A return s.getLocalPort();
0N/A }
0N/A
0N/A public void setException(Exception e) {
0N/A exc = e;
0N/A }
0N/A
0N/A public Exception getException() {
0N/A return exc;
0N/A }
0N/A
0N/A /*
0N/A * Send 10 packets to the receiver
0N/A */
0N/A public void run() {
0N/A try {
0N/A
0N/A byte b[] = "Hello".getBytes();
0N/A DatagramPacket p = new DatagramPacket(b, b.length);
0N/A p.setAddress( InetAddress.getLocalHost() );
0N/A p.setPort( port );
0N/A
0N/A for (int i=0; i<10; i++) {
0N/A s.send(p);
0N/A Thread.currentThread().sleep(1000);
0N/A }
0N/A
0N/A } catch (Exception e) {
0N/A setException(e);
0N/A }
0N/A
0N/A s.close();
0N/A }
0N/A }
0N/A
0N/A}