189 lines
8.6 KiB
Java
189 lines
8.6 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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* https://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 io.netty.channel.DefaultSelectStrategyFactory;
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import io.netty.channel.EventLoop;
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import io.netty.channel.EventLoopTaskQueueFactory;
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import io.netty.channel.MultithreadEventLoopGroup;
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import io.netty.channel.SelectStrategyFactory;
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import io.netty.channel.SingleThreadEventLoop;
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import io.netty.util.concurrent.EventExecutor;
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import io.netty.util.concurrent.EventExecutorChooserFactory;
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import io.netty.util.concurrent.RejectedExecutionHandler;
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import io.netty.util.concurrent.RejectedExecutionHandlers;
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import io.netty.util.internal.UnstableApi;
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import java.util.concurrent.Executor;
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import java.util.concurrent.ThreadFactory;
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@UnstableApi
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public final class KQueueEventLoopGroup extends MultithreadEventLoopGroup {
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{
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// Ensure JNI is initialized by the time this class is loaded by this time!
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KQueue.ensureAvailability();
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}
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/**
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* Create a new instance using the default number of threads and the default {@link ThreadFactory}.
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*/
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public KQueueEventLoopGroup() {
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this(0);
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}
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/**
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* Create a new instance using the specified number of threads and the default {@link ThreadFactory}.
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*/
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public KQueueEventLoopGroup(int nThreads) {
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this(nThreads, (ThreadFactory) null);
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}
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/**
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* Create a new instance using the default number of threads and the given {@link ThreadFactory}.
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*/
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@SuppressWarnings("deprecation")
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public KQueueEventLoopGroup(ThreadFactory threadFactory) {
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this(0, threadFactory, 0);
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}
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/**
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* Create a new instance using the specified number of threads and the default {@link ThreadFactory}.
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*/
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@SuppressWarnings("deprecation")
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public KQueueEventLoopGroup(int nThreads, SelectStrategyFactory selectStrategyFactory) {
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this(nThreads, (ThreadFactory) null, selectStrategyFactory);
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}
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/**
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* Create a new instance using the specified number of threads and the given {@link ThreadFactory}.
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*/
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@SuppressWarnings("deprecation")
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public KQueueEventLoopGroup(int nThreads, ThreadFactory threadFactory) {
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this(nThreads, threadFactory, 0);
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}
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public KQueueEventLoopGroup(int nThreads, Executor executor) {
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this(nThreads, executor, DefaultSelectStrategyFactory.INSTANCE);
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}
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/**
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* Create a new instance using the specified number of threads and the given {@link ThreadFactory}.
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*/
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@SuppressWarnings("deprecation")
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public KQueueEventLoopGroup(int nThreads, ThreadFactory threadFactory,
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SelectStrategyFactory selectStrategyFactory) {
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this(nThreads, threadFactory, 0, selectStrategyFactory);
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}
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/**
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* Create a new instance using the specified number of threads, the given {@link ThreadFactory} and the given
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* maximal amount of epoll events to handle per epollWait(...).
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*
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* @deprecated Use {@link #KQueueEventLoopGroup(int)} or {@link #KQueueEventLoopGroup(int, ThreadFactory)}
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*/
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@Deprecated
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public KQueueEventLoopGroup(int nThreads, ThreadFactory threadFactory, int maxEventsAtOnce) {
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this(nThreads, threadFactory, maxEventsAtOnce, DefaultSelectStrategyFactory.INSTANCE);
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}
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/**
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* Create a new instance using the specified number of threads, the given {@link ThreadFactory} and the given
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* maximal amount of epoll events to handle per epollWait(...).
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*
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* @deprecated Use {@link #KQueueEventLoopGroup(int)}, {@link #KQueueEventLoopGroup(int, ThreadFactory)}, or
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* {@link #KQueueEventLoopGroup(int, SelectStrategyFactory)}
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*/
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@Deprecated
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public KQueueEventLoopGroup(int nThreads, ThreadFactory threadFactory, int maxEventsAtOnce,
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SelectStrategyFactory selectStrategyFactory) {
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super(nThreads, threadFactory, maxEventsAtOnce, selectStrategyFactory, RejectedExecutionHandlers.reject());
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}
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public KQueueEventLoopGroup(int nThreads, Executor executor, SelectStrategyFactory selectStrategyFactory) {
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super(nThreads, executor, 0, selectStrategyFactory, RejectedExecutionHandlers.reject());
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}
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public KQueueEventLoopGroup(int nThreads, Executor executor, EventExecutorChooserFactory chooserFactory,
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SelectStrategyFactory selectStrategyFactory) {
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super(nThreads, executor, chooserFactory, 0, selectStrategyFactory, RejectedExecutionHandlers.reject());
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}
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public KQueueEventLoopGroup(int nThreads, Executor executor, EventExecutorChooserFactory chooserFactory,
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SelectStrategyFactory selectStrategyFactory,
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RejectedExecutionHandler rejectedExecutionHandler) {
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super(nThreads, executor, chooserFactory, 0, selectStrategyFactory, rejectedExecutionHandler);
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}
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public KQueueEventLoopGroup(int nThreads, Executor executor, EventExecutorChooserFactory chooserFactory,
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SelectStrategyFactory selectStrategyFactory,
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RejectedExecutionHandler rejectedExecutionHandler,
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EventLoopTaskQueueFactory queueFactory) {
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super(nThreads, executor, chooserFactory, 0, selectStrategyFactory,
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rejectedExecutionHandler, queueFactory);
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}
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/**
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* @param nThreads the number of threads that will be used by this instance.
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* @param executor the Executor to use, or {@code null} if default one should be used.
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* @param chooserFactory the {@link EventExecutorChooserFactory} to use.
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* @param selectStrategyFactory the {@link SelectStrategyFactory} to use.
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* @param rejectedExecutionHandler the {@link RejectedExecutionHandler} to use.
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* @param taskQueueFactory the {@link EventLoopTaskQueueFactory} to use for
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* {@link SingleThreadEventLoop#execute(Runnable)},
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* or {@code null} if default one should be used.
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* @param tailTaskQueueFactory the {@link EventLoopTaskQueueFactory} to use for
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* {@link SingleThreadEventLoop#executeAfterEventLoopIteration(Runnable)},
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* or {@code null} if default one should be used.
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*/
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public KQueueEventLoopGroup(int nThreads, Executor executor, EventExecutorChooserFactory chooserFactory,
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SelectStrategyFactory selectStrategyFactory,
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RejectedExecutionHandler rejectedExecutionHandler,
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EventLoopTaskQueueFactory taskQueueFactory,
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EventLoopTaskQueueFactory tailTaskQueueFactory) {
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super(nThreads, executor, chooserFactory, 0, selectStrategyFactory, rejectedExecutionHandler, taskQueueFactory,
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tailTaskQueueFactory);
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}
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/**
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* Sets the percentage of the desired amount of time spent for I/O in the child event loops. The default value is
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* {@code 50}, which means the event loop will try to spend the same amount of time for I/O as for non-I/O tasks.
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*/
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public void setIoRatio(int ioRatio) {
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for (EventExecutor e: this) {
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((KQueueEventLoop) e).setIoRatio(ioRatio);
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}
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}
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@Override
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protected EventLoop newChild(Executor executor, Object... args) throws Exception {
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Integer maxEvents = (Integer) args[0];
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SelectStrategyFactory selectStrategyFactory = (SelectStrategyFactory) args[1];
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RejectedExecutionHandler rejectedExecutionHandler = (RejectedExecutionHandler) args[2];
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EventLoopTaskQueueFactory taskQueueFactory = null;
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EventLoopTaskQueueFactory tailTaskQueueFactory = null;
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int argsLength = args.length;
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if (argsLength > 3) {
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taskQueueFactory = (EventLoopTaskQueueFactory) args[3];
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}
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if (argsLength > 4) {
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tailTaskQueueFactory = (EventLoopTaskQueueFactory) args[4];
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}
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return new KQueueEventLoop(this, executor, maxEvents,
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selectStrategyFactory.newSelectStrategy(),
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rejectedExecutionHandler, taskQueueFactory, tailTaskQueueFactory);
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}
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}
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