1 /* 2 * Copyright (c) 2018, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 /* @test 27 * @bug 6350055 28 * @run testng AtomicUpdates 29 * @summary Unit test for SelectionKey interestOpsOr and interestOpsAnd 30 */ 31 32 import java.io.Closeable; 33 import java.io.IOException; 34 import java.net.InetAddress; 35 import java.net.InetSocketAddress; 36 import java.nio.channels.CancelledKeyException; 37 import java.nio.channels.SelectableChannel; 38 import java.nio.channels.SelectionKey; 39 import java.nio.channels.Selector; 40 import java.nio.channels.ServerSocketChannel; 41 import java.nio.channels.SocketChannel; 42 import org.testng.annotations.Test; 43 44 import static java.nio.channels.SelectionKey.OP_READ; 45 import static java.nio.channels.SelectionKey.OP_WRITE; 46 import static java.nio.channels.SelectionKey.OP_CONNECT; 47 import static java.nio.channels.SelectionKey.OP_ACCEPT; 48 import static org.testng.Assert.*; 49 50 @Test 51 public class AtomicUpdates { 52 keyFor(SocketChannel sc)53 private SelectionKey keyFor(SocketChannel sc) { 54 return new SelectionKey() { 55 private int ops; 56 private boolean invalid; 57 private void ensureValid() { 58 if (!isValid()) 59 throw new CancelledKeyException(); 60 } 61 @Override 62 public SelectableChannel channel() { 63 return sc; 64 } 65 @Override 66 public Selector selector() { 67 throw new RuntimeException(); 68 } 69 @Override 70 public boolean isValid() { 71 return !invalid; 72 } 73 @Override 74 public void cancel() { 75 invalid = true; 76 } 77 @Override 78 public int interestOps() { 79 ensureValid(); 80 return ops; 81 } 82 @Override 83 public SelectionKey interestOps(int ops) { 84 ensureValid(); 85 if ((ops & ~channel().validOps()) != 0) 86 throw new IllegalArgumentException(); 87 this.ops = ops; 88 return this; 89 } 90 @Override 91 public int readyOps() { 92 ensureValid(); 93 return 0; 94 } 95 }; 96 } 97 test(SelectionKey key)98 private void test(SelectionKey key) { 99 assertTrue(key.channel() instanceof SocketChannel); 100 key.interestOps(0); 101 102 // 0 -> 0 103 int previous = key.interestOpsOr(0); 104 assertTrue(previous == 0); 105 assertTrue(key.interestOps() == 0); 106 107 // 0 -> OP_CONNECT 108 previous = key.interestOpsOr(OP_CONNECT); 109 assertTrue(previous == 0); 110 assertTrue(key.interestOps() == OP_CONNECT); 111 112 // OP_CONNECT -> OP_CONNECT 113 previous = key.interestOpsOr(0); 114 assertTrue(previous == OP_CONNECT); 115 assertTrue(key.interestOps() == OP_CONNECT); 116 117 // OP_CONNECT -> OP_CONNECT | OP_READ | OP_WRITE 118 previous = key.interestOpsOr(OP_READ | OP_WRITE); 119 assertTrue(previous == OP_CONNECT); 120 assertTrue(key.interestOps() == (OP_CONNECT | OP_READ | OP_WRITE)); 121 122 // OP_CONNECT | OP_READ | OP_WRITE -> OP_CONNECT 123 previous = key.interestOpsAnd(~(OP_READ | OP_WRITE)); 124 assertTrue(previous == (OP_CONNECT | OP_READ | OP_WRITE)); 125 assertTrue(key.interestOps() == OP_CONNECT); 126 127 // OP_CONNECT -> 0 128 previous = key.interestOpsAnd(~OP_CONNECT); 129 assertTrue(previous == OP_CONNECT); 130 assertTrue(key.interestOps() == 0); 131 132 // OP_READ | OP_WRITE -> OP_READ | OP_WRITE 133 key.interestOps(OP_READ | OP_WRITE); 134 previous = key.interestOpsAnd(~OP_ACCEPT); 135 assertTrue(previous == (OP_READ | OP_WRITE)); 136 assertTrue(key.interestOps() == (OP_READ | OP_WRITE)); 137 138 // OP_READ | OP_WRITE -> 0 139 previous = key.interestOpsAnd(0); 140 assertTrue(previous == (OP_READ | OP_WRITE)); 141 assertTrue(key.interestOps() == 0); 142 143 // 0 -> 0 144 previous = key.interestOpsAnd(0); 145 assertTrue(previous == 0); 146 assertTrue(key.interestOps() == 0); 147 148 try { 149 key.interestOpsOr(OP_ACCEPT); 150 fail("IllegalArgumentException expected"); 151 } catch (IllegalArgumentException expected) { } 152 153 key.cancel(); 154 try { 155 key.interestOpsOr(OP_READ); 156 fail("CancelledKeyException expected"); 157 } catch (CancelledKeyException expected) { } 158 try { 159 key.interestOpsAnd(~OP_READ); 160 fail("CancelledKeyException expected"); 161 } catch (CancelledKeyException expected) { } 162 } 163 164 /** 165 * Test default implementation of interestOpsOr/interestOpsAnd 166 */ testDefaultImplementation()167 public void testDefaultImplementation() throws Exception { 168 try (SocketChannel sc = SocketChannel.open()) { 169 SelectionKey key = keyFor(sc); 170 test(key); 171 } 172 } 173 174 /** 175 * Test the default provider implementation of SelectionKey. 176 */ testNioImplementation()177 public void testNioImplementation() throws Exception { 178 try (SocketChannel sc = SocketChannel.open(); 179 Selector sel = Selector.open()) { 180 sc.configureBlocking(false); 181 SelectionKey key = sc.register(sel, 0); 182 test(key); 183 } 184 } 185 } 186 187