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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 | } | ||