1 /* 2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* @test 25 * @summary Test nonblocking connect and finishConnect 26 * @bug 4457776 27 * @library .. 28 */ 29 30 import java.net.*; 31 import java.nio.*; 32 import java.nio.channels.*; 33 import java.nio.channels.spi.SelectorProvider; 34 import java.util.*; 35 36 37 /** 38 * Typically there would be more than one channel registered to select 39 * on, this test is just a very simple version with only one channel 40 * registered for the connectSelector. 41 */ 42 43 public class BasicConnect { 44 45 public static void main(String[] args) throws Exception { 46 Selector connectSelector = 47 SelectorProvider.provider().openSelector(); 48 try (TestClass.EchoServer echoServer 49 = TestClass.EchoServer.startNewServer(100)) { 50 InetSocketAddress isa 51 = new InetSocketAddress(echoServer.getAddress(), 52 echoServer.getPort()); 53 SocketChannel sc = SocketChannel.open(); 54 sc.configureBlocking(false); 55 boolean result = sc.connect(isa); 56 if (result) { 57 System.out.println("Socket immediately connected on " 58 + System.getProperty("os.name") 59 + ": " + sc); 60 } 61 while (!result) { 62 SelectionKey connectKey = sc.register(connectSelector, 63 SelectionKey.OP_CONNECT); 64 int keysAdded = connectSelector.select(); 65 if (keysAdded > 0) { 66 Set readyKeys = connectSelector.selectedKeys(); 67 Iterator i = readyKeys.iterator(); 68 while (i.hasNext()) { 69 SelectionKey sk = (SelectionKey)i.next(); 70 i.remove(); 71 SocketChannel nextReady = (SocketChannel)sk.channel(); 72 result = nextReady.finishConnect(); 73 if (result) 74 sk.cancel(); 75 } 76 } 77 } 78 79 byte[] bs = new byte[] { (byte)0xca, (byte)0xfe, 80 (byte)0xba, (byte)0xbe }; 81 ByteBuffer bb = ByteBuffer.wrap(bs); 82 sc.configureBlocking(true); 83 sc.write(bb); 84 bb.rewind(); 85 86 ByteBuffer bb2 = ByteBuffer.allocateDirect(100); 87 int n = sc.read(bb2); 88 bb2.flip(); 89 90 sc.close(); 91 connectSelector.close(); 92 93 if (!bb.equals(bb2)) 94 throw new Exception("Echoed bytes incorrect: Sent " 95 + bb + ", got " + bb2); 96 } 97 } 98 }