| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.harmony.nio.internal; |
| |
| import java.nio.channels.CancelledKeyException; |
| import java.nio.channels.SelectableChannel; |
| import java.nio.channels.SelectionKey; |
| import java.nio.channels.Selector; |
| import java.nio.channels.spi.AbstractSelectableChannel; |
| import java.nio.channels.spi.AbstractSelectionKey; |
| |
| /* |
| * Default implementation of SelectionKey |
| */ |
| final class EpollSelectionKeyImpl extends AbstractSelectionKey { |
| |
| private AbstractSelectableChannel channel; |
| |
| private int interestOps; |
| |
| private int readyOps; |
| |
| private EpollSelectorImpl selector; |
| |
| private int index; |
| |
| static int stHash; |
| |
| private int hashCode; |
| |
| public int hashCode() { |
| return hashCode; |
| } |
| |
| public boolean equals(Object obj) { |
| if (this == obj) |
| return true; |
| if (obj == null) |
| return false; |
| if (getClass() != obj.getClass()) |
| return false; |
| final EpollSelectionKeyImpl other = (EpollSelectionKeyImpl) obj; |
| if (hashCode != other.hashCode) |
| return false; |
| return true; |
| } |
| |
| public EpollSelectionKeyImpl(AbstractSelectableChannel channel, |
| int operations, Object attachment, EpollSelectorImpl selector) { |
| super(); |
| this.channel = channel; |
| interestOps = operations; |
| this.selector = selector; |
| this.hashCode = stHash++; |
| attach(attachment); |
| } |
| |
| public SelectableChannel channel() { |
| return channel; |
| } |
| |
| public int interestOps() { |
| checkValid(); |
| synchronized (selector.keysLock) { |
| return interestOps; |
| } |
| } |
| |
| public SelectionKey interestOps(int operations) { |
| checkValid(); |
| if ((operations & ~(channel().validOps())) != 0) { |
| throw new IllegalArgumentException(); |
| } |
| synchronized (selector.keysLock) { |
| interestOps = operations; |
| selector.modKey(this); |
| } |
| return this; |
| } |
| |
| public int readyOps() { |
| checkValid(); |
| return readyOps; |
| } |
| |
| public Selector selector() { |
| return selector; |
| } |
| |
| /* |
| * package private method for setting the ready operation by selector |
| */ |
| void setReadyOps(int readyOps) { |
| this.readyOps = readyOps; |
| } |
| |
| int getIndex() { |
| return index; |
| } |
| |
| void setIndex(int index) { |
| this.index = index; |
| } |
| |
| private void checkValid() { |
| if (!isValid()) { |
| throw new CancelledKeyException(); |
| } |
| } |
| |
| } |