e8efcd82a8
Motivation: We can just use Objects.requireNonNull(...) as a replacement for ObjectUtil.checkNotNull(....) Modifications: - Use Objects.requireNonNull(...) Result: Less code to maintain.
136 lines
4.8 KiB
Java
136 lines
4.8 KiB
Java
/*
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* Copyright 2016 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.channel.kqueue;
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import static java.util.Objects.requireNonNull;
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import io.netty.channel.Channel;
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import io.netty.channel.ChannelConfig;
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import io.netty.channel.ChannelMetadata;
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import io.netty.channel.ChannelOutboundBuffer;
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import io.netty.channel.ChannelPipeline;
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import io.netty.channel.EventLoop;
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import io.netty.channel.EventLoopGroup;
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import io.netty.channel.ServerChannel;
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import io.netty.util.internal.UnstableApi;
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import java.net.InetSocketAddress;
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import java.net.SocketAddress;
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@UnstableApi
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public abstract class AbstractKQueueServerChannel extends AbstractKQueueChannel implements ServerChannel {
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private static final ChannelMetadata METADATA = new ChannelMetadata(false, 16);
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private final EventLoopGroup childEventLoopGroup;
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AbstractKQueueServerChannel(EventLoop eventLoop, EventLoopGroup childEventLoopGroup, BsdSocket fd) {
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this(eventLoop, childEventLoopGroup, fd, isSoErrorZero(fd));
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}
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AbstractKQueueServerChannel(EventLoop eventLoop, EventLoopGroup childEventLoopGroup, BsdSocket fd, boolean active) {
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super(null, eventLoop, fd, active);
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this.childEventLoopGroup = requireNonNull(childEventLoopGroup, "childEventLoopGroup");
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}
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@Override
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public EventLoopGroup childEventLoopGroup() {
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return childEventLoopGroup;
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}
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@Override
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public ChannelMetadata metadata() {
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return METADATA;
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}
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@Override
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protected InetSocketAddress remoteAddress0() {
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return null;
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}
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@Override
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protected AbstractKQueueUnsafe newUnsafe() {
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return new KQueueServerSocketUnsafe();
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}
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@Override
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protected void doWrite(ChannelOutboundBuffer in) throws Exception {
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throw new UnsupportedOperationException();
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}
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@Override
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protected Object filterOutboundMessage(Object msg) throws Exception {
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throw new UnsupportedOperationException();
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}
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abstract Channel newChildChannel(int fd, byte[] remote, int offset, int len) throws Exception;
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@Override
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protected boolean doConnect(SocketAddress remoteAddress, SocketAddress localAddress) throws Exception {
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throw new UnsupportedOperationException();
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}
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final class KQueueServerSocketUnsafe extends AbstractKQueueUnsafe {
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// Will hold the remote address after accept(...) was successful.
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// We need 24 bytes for the address as maximum + 1 byte for storing the capacity.
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// So use 26 bytes as it's a power of two.
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private final byte[] acceptedAddress = new byte[26];
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@Override
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void readReady(KQueueRecvByteAllocatorHandle allocHandle) {
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assert eventLoop().inEventLoop();
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final ChannelConfig config = config();
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if (shouldBreakReadReady(config)) {
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clearReadFilter0();
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return;
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}
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final ChannelPipeline pipeline = pipeline();
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allocHandle.reset(config);
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allocHandle.attemptedBytesRead(1);
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readReadyBefore();
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Throwable exception = null;
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try {
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try {
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do {
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int acceptFd = socket.accept(acceptedAddress);
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if (acceptFd == -1) {
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// this means everything was handled for now
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allocHandle.lastBytesRead(-1);
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break;
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}
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allocHandle.lastBytesRead(1);
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allocHandle.incMessagesRead(1);
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readPending = false;
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pipeline.fireChannelRead(newChildChannel(acceptFd, acceptedAddress, 1,
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acceptedAddress[0]));
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} while (allocHandle.continueReading());
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} catch (Throwable t) {
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exception = t;
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}
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allocHandle.readComplete();
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pipeline.fireChannelReadComplete();
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if (exception != null) {
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pipeline.fireExceptionCaught(exception);
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}
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readIfIsAutoRead();
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} finally {
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readReadyFinally(config);
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}
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}
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}
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}
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