1 /* 2 * Copyright (c) 2000, 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. 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 package sun.nio.ch; 27 28 import java.nio.channels.*; 29 import java.nio.channels.spi.*; 30 31 32 /** 33 * An implementation of SelectionKey for Solaris. 34 */ 35 36 public class SelectionKeyImpl 37 extends AbstractSelectionKey 38 { 39 40 final SelChImpl channel; // package-private 41 public final SelectorImpl selector; 42 43 // Index for a pollfd array in Selector that this key is registered with 44 private int index; 45 46 private volatile int interestOps; 47 private int readyOps; 48 SelectionKeyImpl(SelChImpl ch, SelectorImpl sel)49 SelectionKeyImpl(SelChImpl ch, SelectorImpl sel) { 50 channel = ch; 51 selector = sel; 52 } 53 channel()54 public SelectableChannel channel() { 55 return (SelectableChannel)channel; 56 } 57 selector()58 public Selector selector() { 59 return selector; 60 } 61 getIndex()62 int getIndex() { // package-private 63 return index; 64 } 65 setIndex(int i)66 void setIndex(int i) { // package-private 67 index = i; 68 } 69 ensureValid()70 private void ensureValid() { 71 if (!isValid()) 72 throw new CancelledKeyException(); 73 } 74 interestOps()75 public int interestOps() { 76 ensureValid(); 77 return interestOps; 78 } 79 interestOps(int ops)80 public SelectionKey interestOps(int ops) { 81 ensureValid(); 82 return nioInterestOps(ops); 83 } 84 readyOps()85 public int readyOps() { 86 ensureValid(); 87 return readyOps; 88 } 89 90 // The nio versions of these operations do not care if a key 91 // has been invalidated. They are for internal use by nio code. 92 nioReadyOps(int ops)93 public void nioReadyOps(int ops) { 94 readyOps = ops; 95 } 96 nioReadyOps()97 public int nioReadyOps() { 98 return readyOps; 99 } 100 nioInterestOps(int ops)101 public SelectionKey nioInterestOps(int ops) { 102 if ((ops & ~channel().validOps()) != 0) 103 throw new IllegalArgumentException(); 104 channel.translateAndSetInterestOps(ops, this); 105 interestOps = ops; 106 return this; 107 } 108 nioInterestOps()109 public int nioInterestOps() { 110 return interestOps; 111 } 112 113 } 114