/* * Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.nio.ch; import java.io.IOException;import java.nio.channels.*;import java.nio.channels.spi.*;  /** * An implementation of SelectionKey for Solaris. */ class SelectionKeyImpl    extends AbstractSelectionKey{     final SelChImpl channel;                            // package-private    final SelectorImpl selector;                        // package-private     // Index for a pollfd array in Selector that this key is registered with    private int index;     private volatile int interestOps;    private int readyOps;     SelectionKeyImpl(SelChImpl ch, SelectorImpl sel) {        channel = ch;        selector = sel;    }     public SelectableChannel channel() {        return (SelectableChannel)channel;    }     public Selector selector() {        return selector;    }     int getIndex() {                                    // package-private        return index;    }     void setIndex(int i) {                              // package-private        index = i;    }     private void ensureValid() {        if (!isValid())            throw new CancelledKeyException();    }     public int interestOps() {        ensureValid();        return interestOps;    }     public SelectionKey interestOps(int ops) {        ensureValid();        return nioInterestOps(ops);    }     public int readyOps() {        ensureValid();        return readyOps;    }     // The nio versions of these operations do not care if a key    // has been invalidated. They are for internal use by nio code.     void nioReadyOps(int ops) {                 // package-private        readyOps = ops;    }     int nioReadyOps() {                         // package-private        return readyOps;    }     SelectionKey nioInterestOps(int ops) {      // package-private        if ((ops & ~channel().validOps()) != 0)            throw new IllegalArgumentException();        channel.translateAndSetInterestOps(ops, this);        interestOps = ops;        return this;    }     int nioInterestOps() {                       // package-private        return interestOps;    } }