1 /* 2 * Copyright (c) 2001, 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 SocketChannel.finishConnect 26 * @library .. 27 */ 28 29 import java.net.*; 30 import java.nio.*; 31 import java.nio.channels.*; 32 import java.nio.channels.spi.SelectorProvider; 33 import java.nio.charset.*; 34 import java.util.*; 35 36 37 public class FinishConnect { 38 39 static final int DAYTIME_PORT = 13; 40 static final String DAYTIME_HOST = TestUtil.HOST; 41 42 public static void main(String[] args) throws Exception { 43 test1(true, true); 44 test1(true, false); 45 test1(false, true); 46 test1(false, false); 47 test2(); 48 } 49 50 static void test1(boolean select, boolean setBlocking) throws Exception { 51 InetSocketAddress isa 52 = new InetSocketAddress(InetAddress.getByName(DAYTIME_HOST), 53 DAYTIME_PORT); 54 SocketChannel sc = SocketChannel.open(); 55 sc.configureBlocking(false); 56 boolean connected = sc.connect(isa); 57 int attempts = 0; 58 59 try { 60 sc.connect(isa); 61 throw new RuntimeException("Allowed another connect call"); 62 } catch (IllegalStateException ise) { 63 // Correct behavior 64 } 65 66 if (setBlocking) 67 sc.configureBlocking(true); 68 69 if (!connected && select && !setBlocking) { 70 Selector selector = SelectorProvider.provider().openSelector(); 71 sc.register(selector, SelectionKey.OP_CONNECT); 72 while (!connected) { 73 int keysAdded = selector.select(100); 74 if (keysAdded > 0) { 75 Set readyKeys = selector.selectedKeys(); 76 Iterator i = readyKeys.iterator(); 77 while (i.hasNext()) { 78 SelectionKey sk = (SelectionKey)i.next(); 79 SocketChannel nextReady = 80 (SocketChannel)sk.channel(); 81 connected = sc.finishConnect(); 82 } 83 } 84 } 85 selector.close(); 86 } 87 88 while (!connected) { 89 if (attempts++ > 30) 90 throw new RuntimeException("Failed to connect"); 91 Thread.sleep(100); 92 connected = sc.finishConnect(); 93 } 94 95 ByteBuffer bb = ByteBuffer.allocateDirect(100); 96 int bytesRead = 0; 97 int totalRead = 0; 98 while (totalRead < 20) { 99 bytesRead = sc.read(bb); 100 if (bytesRead > 0) 101 totalRead += bytesRead; 102 if (bytesRead < 0) 103 throw new RuntimeException("Message shorter than expected"); 104 } 105 bb.position(bb.position() - 2); // Drop CRLF 106 bb.flip(); 107 CharBuffer cb = Charset.forName("US-ASCII").newDecoder().decode(bb); 108 System.err.println(isa + " says: \"" + cb + "\""); 109 sc.close(); 110 } 111 112 static void test2() throws Exception { 113 InetSocketAddress isa 114 = new InetSocketAddress(InetAddress.getByName(DAYTIME_HOST), 115 DAYTIME_PORT); 116 boolean done = false; 117 int globalAttempts = 0; 118 while (!done) { 119 if (globalAttempts++ > 50) 120 throw new RuntimeException("Failed to connect"); 121 SocketChannel sc = SocketChannel.open(); 122 sc.configureBlocking(false); 123 boolean connected = sc.connect(isa); 124 int localAttempts = 0; 125 while (!connected) { 126 if (localAttempts++ > 500) 127 throw new RuntimeException("Failed to connect"); 128 connected = sc.finishConnect(); 129 if (connected) { 130 done = true; 131 break; 132 } 133 Thread.sleep(10); 134 } 135 sc.close(); 136 } 137 } 138 139 }