NioIoOps.java — netty Source File

Source Code

/*
 * Copyright 2024 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.channel.nio;

import io.netty.channel.IoOps;

import java.nio.channels.SelectionKey;

/**
 * Implementation of {@link IoOps} for
 * that is used by {@link NioIoHandler} and so for NIO based transports.
 */
public final class NioIoOps implements IoOps {
    /**
     * Interested in NO IO events.
     */
    public static final NioIoOps NONE = new NioIoOps(0);

    /**
     * Interested in IO events that should be handled by accepting new connections
     */
    public static final NioIoOps ACCEPT = new NioIoOps(SelectionKey.OP_ACCEPT);

    /**
     * Interested in IO events which should be handled by finish pending connect operations
     */
    public static final NioIoOps CONNECT = new NioIoOps(SelectionKey.OP_CONNECT);

    /**
     * Interested in IO events which tell that the underlying channel is writable again.
     */
    public static final NioIoOps WRITE = new NioIoOps(SelectionKey.OP_WRITE);

    /**
     * Interested in IO events which should be handled by reading data.
     */
    public static final NioIoOps READ = new NioIoOps(SelectionKey.OP_READ);

    /**
     * Interested in IO events which should be either handled by reading or accepting.
     */
    public static final NioIoOps READ_AND_ACCEPT = new NioIoOps(SelectionKey.OP_READ | SelectionKey.OP_ACCEPT);

    /**
     * Interested in IO events which should be either handled by reading or writing.
     */
    public static final NioIoOps READ_AND_WRITE = new NioIoOps(SelectionKey.OP_READ | SelectionKey.OP_WRITE);
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