IdleStateHandler.java — netty Source File

Source Code

/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project 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:
 *
 *   https://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 io.netty.handler.timeout;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.Channel;
import io.netty.channel.Channel.Unsafe;
import io.netty.channel.ChannelDuplexHandler;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOutboundBuffer;
import io.netty.channel.ChannelPromise;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.Ticker;
import io.netty.util.internal.ObjectUtil;

import java.util.concurrent.TimeUnit;

/**
 * Triggers an {@link IdleStateEvent} when a {@link Channel} has not performed
 * read, write, or both operation for a while.
 *
 * <h3>Supported idle states</h3>
 * <table border="1">
 * <tr>
 * <th>Property</th><th>Meaning</th>
 * </tr>
 * <tr>
 * <td>{@code readerIdleTime}</td>
 * <td>an {@link IdleStateEvent} whose state is {@link IdleState#READER_IDLE}
 *     will be triggered when no read was performed for the specified period of
 *     time.  Specify {@code 0} to disable.</td>
 * </tr>
 * <tr>
 * <td>{@code writerIdleTime}</td>
 * <td>an {@link IdleStateEvent} whose state is {@link IdleState#WRITER_IDLE}
 *     will be triggered when no write was performed for the specified period of
 *     time.  Specify {@code 0} to disable.</td>
 * </tr>
 * <tr>
 * <td>{@code allIdleTime}</td>
 * <td>an {@link IdleStateEvent} whose state is {@link IdleState#ALL_IDLE}
 *     will be triggered when neither read nor write was performed for the
 *     specified period of time.  Specify {@code 0} to disable.</td>
 * </tr>
 * </table>
// ... (542 more lines)