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. 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 * @bug 6350055 26 * @run testng AtomicUpdates 27 * @summary Unit test for SelectionKey interestOpsOr and interestOpsAnd 28 */ 29 30 import java.io.Closeable; 31 import java.io.IOException; 32 import java.net.InetAddress; 33 import java.net.InetSocketAddress; 34 import java.nio.channels.CancelledKeyException; 35 import java.nio.channels.SelectableChannel; 36 import java.nio.channels.SelectionKey; 37 import java.nio.channels.Selector; 38 import java.nio.channels.ServerSocketChannel; 39 import java.nio.channels.SocketChannel; 40 import org.testng.annotations.Test; 41 42 import static java.nio.channels.SelectionKey.OP_READ; 43 import static java.nio.channels.SelectionKey.OP_WRITE; 44 import static java.nio.channels.SelectionKey.OP_CONNECT; 45 import static java.nio.channels.SelectionKey.OP_ACCEPT; 46 import static org.testng.Assert.*; 47 48 @Test 49 public class AtomicUpdates { 50 keyFor(SocketChannel sc)51 private SelectionKey keyFor(SocketChannel sc) { 52 return new SelectionKey() { 53 private int ops; 54 private boolean invalid; 55 private void ensureValid() { 56 if (!isValid()) 57 throw new CancelledKeyException(); 58 } 59 @Override 60 public SelectableChannel channel() { 61 return sc; 62 } 63 @Override 64 public Selector selector() { 65 throw new RuntimeException(); 66 } 67 @Override 68 public boolean isValid() { 69 return !invalid; 70 } 71 @Override 72 public void cancel() { 73 invalid = true; 74 } 75 @Override 76 public int interestOps() { 77 ensureValid(); 78 return ops; 79 } 80 @Override 81 public SelectionKey interestOps(int ops) { 82 ensureValid(); 83 if ((ops & ~channel().validOps()) != 0) 84 throw new IllegalArgumentException(); 85 this.ops = ops; 86 return this; 87 } 88 @Override 89 public int readyOps() { 90 ensureValid(); 91 return 0; 92 } 93 }; 94 } 95 test(SelectionKey key)96 private void test(SelectionKey key) { 97 assertTrue(key.channel() instanceof SocketChannel); 98 key.interestOps(0); 99 100 // 0 -> 0 101 int previous = key.interestOpsOr(0); 102 assertTrue(previous == 0); 103 assertTrue(key.interestOps() == 0); 104 105 // 0 -> OP_CONNECT 106 previous = key.interestOpsOr(OP_CONNECT); 107 assertTrue(previous == 0); 108 assertTrue(key.interestOps() == OP_CONNECT); 109 110 // OP_CONNECT -> OP_CONNECT 111 previous = key.interestOpsOr(0); 112 assertTrue(previous == OP_CONNECT); 113 assertTrue(key.interestOps() == OP_CONNECT); 114 115 // OP_CONNECT -> OP_CONNECT | OP_READ | OP_WRITE 116 previous = key.interestOpsOr(OP_READ | OP_WRITE); 117 assertTrue(previous == OP_CONNECT); 118 assertTrue(key.interestOps() == (OP_CONNECT | OP_READ | OP_WRITE)); 119 120 // OP_CONNECT | OP_READ | OP_WRITE -> OP_CONNECT 121 previous = key.interestOpsAnd(~(OP_READ | OP_WRITE)); 122 assertTrue(previous == (OP_CONNECT | OP_READ | OP_WRITE)); 123 assertTrue(key.interestOps() == OP_CONNECT); 124 125 // OP_CONNECT -> 0 126 previous = key.interestOpsAnd(~OP_CONNECT); 127 assertTrue(previous == OP_CONNECT); 128 assertTrue(key.interestOps() == 0); 129 130 // OP_READ | OP_WRITE -> OP_READ | OP_WRITE 131 key.interestOps(OP_READ | OP_WRITE); 132 previous = key.interestOpsAnd(~OP_ACCEPT); 133 assertTrue(previous == (OP_READ | OP_WRITE)); 134 assertTrue(key.interestOps() == (OP_READ | OP_WRITE)); 135 136 // OP_READ | OP_WRITE -> 0 137 previous = key.interestOpsAnd(0); 138 assertTrue(previous == (OP_READ | OP_WRITE)); 139 assertTrue(key.interestOps() == 0); 140 141 // 0 -> 0 142 previous = key.interestOpsAnd(0); 143 assertTrue(previous == 0); 144 assertTrue(key.interestOps() == 0); 145 146 try { 147 key.interestOpsOr(OP_ACCEPT); 148 fail("IllegalArgumentException expected"); 149 } catch (IllegalArgumentException expected) { } 150 151 key.cancel(); 152 try { 153 key.interestOpsOr(OP_READ); 154 fail("CancelledKeyException expected"); 155 } catch (CancelledKeyException expected) { } 156 try { 157 key.interestOpsAnd(~OP_READ); 158 fail("CancelledKeyException expected"); 159 } catch (CancelledKeyException expected) { } 160 } 161 162 /** 163 * Test default implementation of interestOpsOr/interestOpsAnd 164 */ testDefaultImplementation()165 public void testDefaultImplementation() throws Exception { 166 try (SocketChannel sc = SocketChannel.open()) { 167 SelectionKey key = keyFor(sc); 168 test(key); 169 } 170 } 171 172 /** 173 * Test the default provider implementation of SelectionKey. 174 */ testNioImplementation()175 public void testNioImplementation() throws Exception { 176 try (SocketChannel sc = SocketChannel.open(); 177 Selector sel = Selector.open()) { 178 sc.configureBlocking(false); 179 SelectionKey key = sc.register(sel, 0); 180 test(key); 181 } 182 } 183 } 184 185