QuicheQuicCodec.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.buffer.ByteBuf;
import io.netty.channel.ChannelDuplexHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelPromise;
import io.netty.channel.MessageSizeEstimator;
import io.netty.channel.socket.DatagramPacket;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;
import org.jetbrains.annotations.Nullable;

import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.nio.ByteBuffer;
import java.util.ArrayDeque;
import java.util.HashSet;
import java.util.Queue;
import java.util.Set;
import java.util.function.Consumer;

import static io.netty.handler.codec.quic.Quiche.allocateNativeOrder;

/**
 * Abstract base class for QUIC codecs.
 */
abstract class QuicheQuicCodec extends ChannelDuplexHandler {
    private static final InternalLogger LOGGER = InternalLoggerFactory.getInstance(QuicheQuicCodec.class);
    private final ConnectionIdChannelMap connectionIdToChannel = new ConnectionIdChannelMap();
    private final Set<QuicheQuicChannel> channels = new HashSet<>();
    private final Queue<QuicheQuicChannel> needsFireChannelReadComplete = new ArrayDeque<>();
    private final Queue<QuicheQuicChannel> delayedRemoval = new ArrayDeque<>();

    private final Consumer<QuicheQuicChannel> freeTask = this::removeChannel;
    private final FlushStrategy flushStrategy;
    private final int localConnIdLength;
    private final QuicheConfig config;

    private MessageSizeEstimator.Handle estimatorHandle;
    private QuicHeaderParser headerParser;
    private QuicHeaderParser.QuicHeaderProcessor parserCallback;
    private int pendingBytes;
    private int pendingPackets;
    private boolean inChannelReadComplete;
    private boolean delayRemoval;
// ... (321 more lines)