| /* |
| * Copyright (c) 2002, 2013, 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 4777504 8024883 |
| * @summary Ensure that a Selector can return at least 100 selected keys |
| * @author Mark Reinhold |
| * @library .. |
| * @build SelectorLimit |
| * @run main/othervm SelectorLimit |
| * @run main/othervm -Dsun.nio.ch.maxUpdateArraySize=128 SelectorLimit |
| */ |
| |
| import java.io.*; |
| import java.net.*; |
| import java.nio.*; |
| import java.nio.channels.*; |
| import java.util.*; |
| |
| |
| public class SelectorLimit { |
| |
| static PrintStream log = System.err; |
| |
| static class Listener |
| extends TestThread |
| { |
| volatile int count = 0; |
| private ServerSocketChannel ssc; |
| |
| Listener(ServerSocketChannel ssc) { |
| super("Listener"); |
| this.ssc = ssc; |
| } |
| |
| void go() throws IOException { |
| for (;;) { |
| ssc.accept(); |
| count++; |
| } |
| } |
| |
| } |
| |
| static final int N_KEYS = 500; |
| static final int MIN_KEYS = 100; |
| |
| public static void main(String[] args) throws Exception { |
| ServerSocketChannel ssc = ServerSocketChannel.open(); |
| TestUtil.bind(ssc); |
| Listener lth = new Listener(ssc); |
| lth.start(); |
| |
| Selector sel = Selector.open(); |
| SocketChannel[] sca = new SocketChannel[N_KEYS]; |
| for (int i = 0; i < N_KEYS; i++) { |
| SocketChannel sc = SocketChannel.open(); |
| sc.configureBlocking(false); |
| sc.register(sel, SelectionKey.OP_CONNECT | SelectionKey.OP_WRITE); |
| sc.connect(ssc.socket().getLocalSocketAddress()); |
| } |
| |
| for (int i = 0; i < 10; i++) { |
| if (lth.count >= MIN_KEYS) |
| break; |
| Thread.sleep(1000); |
| } |
| log.println(lth.count + " connections accepted"); |
| Thread.sleep(500); |
| |
| int n = sel.select(); |
| log.println(n + " keys selected"); |
| if (n < MIN_KEYS) |
| throw new Exception("Only selected " + n + " keys"); |
| |
| } |
| |
| } |