/* * Copyright (c) 2001, 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 4511624 * @summary Test Making lots of Selectors * @library .. */ import java.io.*; import java.net.*; import java.nio.*; import java.nio.channels.*; import java.util.*; import java.nio.channels.spi.SelectorProvider; public class Connect { static int success = 0; static int LIMIT = 100; public static void main(String[] args) throws Exception { scaleTest(); } public static void scaleTest() throws Exception { InetAddress myAddress=InetAddress.getByName(TestUtil.HOST); InetSocketAddress isa = new InetSocketAddress(myAddress,13); for (int j=0; j<LIMIT; j++) { SocketChannel sc = SocketChannel.open(); sc.configureBlocking(false); boolean connected = sc.connect(isa); if (!connected) { Selector RSelector = SelectorProvider.provider().openSelector(); SelectionKey RKey = sc.register (RSelector, SelectionKey.OP_CONNECT); while (!connected) { int keysAdded = RSelector.select(100); if (keysAdded > 0) { Set<SelectionKey> readyKeys = RSelector.selectedKeys(); Iterator<SelectionKey> i = readyKeys.iterator(); while (i.hasNext()) { SelectionKey sk = i.next(); SocketChannel nextReady = (SocketChannel)sk.channel(); connected = nextReady.finishConnect(); } readyKeys.clear(); } } RSelector.close(); } readAndClose(sc); } } static void readAndClose(SocketChannel sc) throws Exception { ByteBuffer bb = ByteBuffer.allocateDirect(100); int n = 0; while (n == 0) // Note this is not a rigorous check for done reading n = sc.read(bb); //bb.position(bb.position() - 2); //bb.flip(); //CharBuffer cb = Charset.forName("US-ASCII").newDecoder().decode(bb); //System.out.println("Received: \"" + cb + "\""); sc.close(); success++; } }