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| 1 | +/* | |
| 2 | + * Copyright (c) 2000, 2004, 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.io.IOException; | |
| 29 | +import java.nio.channels.*; | |
| 30 | +import java.nio.channels.spi.*; | |
| 31 | + | |
| 32 | + | |
| 33 | +/** | |
| 34 | + * An implementation of SelectionKey for Solaris. | |
| 35 | + */ | |
| 36 | + | |
| 37 | +class SelectionKeyImpl | |
| 38 | + extends AbstractSelectionKey | |
| 39 | +{ | |
| 40 | + | |
| 41 | + final SelChImpl channel; // package-private | |
| 42 | + final SelectorImpl selector; // package-private | |
| 43 | + | |
| 44 | + // Index for a pollfd array in Selector that this key is registered with | |
| 45 | + private int index; | |
| 46 | + | |
| 47 | + private volatile int interestOps; | |
| 48 | + private int readyOps; | |
| 49 | + | |
| 50 | + SelectionKeyImpl(SelChImpl ch, SelectorImpl sel) { | |
| 51 | + channel = ch; | |
| 52 | + selector = sel; | |
| 53 | + } | |
| 54 | + | |
| 55 | + public SelectableChannel channel() { | |
| 56 | + return (SelectableChannel)channel; | |
| 57 | + } | |
| 58 | + | |
| 59 | + public Selector selector() { | |
| 60 | + return selector; | |
| 61 | + } | |
| 62 | + | |
| 63 | + int getIndex() { // package-private | |
| 64 | + return index; | |
| 65 | + } | |
| 66 | + | |
| 67 | + void setIndex(int i) { // package-private | |
| 68 | + index = i; | |
| 69 | + } | |
| 70 | + | |
| 71 | + private void ensureValid() { | |
| 72 | + if (!isValid()) | |
| 73 | + throw new CancelledKeyException(); | |
| 74 | + } | |
| 75 | + | |
| 76 | + public int interestOps() { | |
| 77 | + ensureValid(); | |
| 78 | + return interestOps; | |
| 79 | + } | |
| 80 | + | |
| 81 | + public SelectionKey interestOps(int ops) { | |
| 82 | + ensureValid(); | |
| 83 | + return nioInterestOps(ops); | |
| 84 | + } | |
| 85 | + | |
| 86 | + public int readyOps() { | |
| 87 | + ensureValid(); | |
| 88 | + return readyOps; | |
| 89 | + } | |
| 90 | + | |
| 91 | + // The nio versions of these operations do not care if a key | |
| 92 | + // has been invalidated. They are for internal use by nio code. | |
| 93 | + | |
| 94 | + void nioReadyOps(int ops) { // package-private | |
| 95 | + readyOps = ops; | |
| 96 | + } | |
| 97 | + | |
| 98 | + int nioReadyOps() { // package-private | |
| 99 | + return readyOps; | |
| 100 | + } | |
| 101 | + | |
| 102 | + SelectionKey nioInterestOps(int ops) { // package-private | |
| 103 | + if ((ops & ~channel().validOps()) != 0) | |
| 104 | + throw new IllegalArgumentException(); | |
| 105 | + channel.translateAndSetInterestOps(ops, this); | |
| 106 | + interestOps = ops; | |
| 107 | + return this; | |
| 108 | + } | |
| 109 | + | |
| 110 | + int nioInterestOps() { // package-private | |
| 111 | + return interestOps; | |
| 112 | + } | |
| 113 | + | |
| 114 | +} | |