Quic.java — netty Source File

Source Code

/*
 * Copyright 2020 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.codec.quic;

import io.netty.channel.Channel;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelOption;
import io.netty.util.AttributeKey;
import io.netty.util.internal.ObjectUtil;
import io.netty.util.internal.logging.InternalLogger;
import org.jetbrains.annotations.Nullable;

import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;

public final class Quic {
    @SuppressWarnings("unchecked")
    static final Map.Entry<ChannelOption<?>, Object>[] EMPTY_OPTION_ARRAY = new Map.Entry[0];
    @SuppressWarnings("unchecked")
    static final Map.Entry<AttributeKey<?>, Object>[] EMPTY_ATTRIBUTE_ARRAY = new Map.Entry[0];

    static final int MAX_DATAGRAM_SIZE = 1350;

    static final int RESET_TOKEN_LEN = 16;

    private static final Throwable UNAVAILABILITY_CAUSE;

    static {
        Throwable cause = null;

        try {
            String version = Quiche.quiche_version();
            assert version != null;
        } catch (Throwable error) {
            cause = error;
        }

        UNAVAILABILITY_CAUSE = cause;
    }

    /**
     * The maximum length of the <a href="https://www.rfc-editor.org/rfc/rfc9000.html#section-17.2">connection id</a>.
     *
     */
    public static final int MAX_CONN_ID_LEN = 20;

// ... (116 more lines)