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/*
* Copyright 2014 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:
*
* http://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 org.asynchttpclient.shaded.io.netty.channel.epoll;
import org.asynchttpclient.shaded.io.netty.channel.DefaultSelectStrategyFactory;
import org.asynchttpclient.shaded.io.netty.channel.EventLoop;
import org.asynchttpclient.shaded.io.netty.channel.EventLoopGroup;
import org.asynchttpclient.shaded.io.netty.channel.EventLoopTaskQueueFactory;
import org.asynchttpclient.shaded.io.netty.channel.MultithreadEventLoopGroup;
import org.asynchttpclient.shaded.io.netty.channel.SelectStrategyFactory;
import org.asynchttpclient.shaded.io.netty.util.concurrent.EventExecutorChooserFactory;
import org.asynchttpclient.shaded.io.netty.util.concurrent.RejectedExecutionHandler;
import org.asynchttpclient.shaded.io.netty.util.concurrent.RejectedExecutionHandlers;
import java.util.concurrent.Executor;
import java.util.concurrent.ThreadFactory;
/**
* {@link EventLoopGroup} which uses epoll under the covers. Because of this
* it only works on linux.
*/
public final class EpollEventLoopGroup extends MultithreadEventLoopGroup {
{
// Ensure JNI is initialized by the time this class is loaded.
Epoll.ensureAvailability();
}
/**
* Create a new instance using the default number of threads and the default {@link ThreadFactory}.
*/
public EpollEventLoopGroup() {
this(0);
}
/**
* Create a new instance using the specified number of threads and the default {@link ThreadFactory}.
*/
public EpollEventLoopGroup(int nThreads) {
this(nThreads, (ThreadFactory) null);
}
/**
* Create a new instance using the default number of threads and the given {@link ThreadFactory}.
*/
@SuppressWarnings("deprecation")
public EpollEventLoopGroup(ThreadFactory threadFactory) {
this(0, threadFactory, 0);
}
/**
* Create a new instance using the specified number of threads and the default {@link ThreadFactory}.
*/
@SuppressWarnings("deprecation")
public EpollEventLoopGroup(int nThreads, SelectStrategyFactory selectStrategyFactory) {
this(nThreads, (ThreadFactory) null, selectStrategyFactory);
}
/**
* Create a new instance using the specified number of threads and the given {@link ThreadFactory}.
*/
@SuppressWarnings("deprecation")
public EpollEventLoopGroup(int nThreads, ThreadFactory threadFactory) {
this(nThreads, threadFactory, 0);
}
public EpollEventLoopGroup(int nThreads, Executor executor) {
this(nThreads, executor, DefaultSelectStrategyFactory.INSTANCE);
}
/**
* Create a new instance using the specified number of threads and the given {@link ThreadFactory}.
*/
@SuppressWarnings("deprecation")
public EpollEventLoopGroup(int nThreads, ThreadFactory threadFactory, SelectStrategyFactory selectStrategyFactory) {
this(nThreads, threadFactory, 0, selectStrategyFactory);
}
/**
* Create a new instance using the specified number of threads, the given {@link ThreadFactory} and the given
* maximal amount of epoll events to handle per epollWait(...).
*
* @deprecated Use {@link #EpollEventLoopGroup(int)} or {@link #EpollEventLoopGroup(int, ThreadFactory)}
*/
@Deprecated
public EpollEventLoopGroup(int nThreads, ThreadFactory threadFactory, int maxEventsAtOnce) {
this(nThreads, threadFactory, maxEventsAtOnce, DefaultSelectStrategyFactory.INSTANCE);
}
/**
* Create a new instance using the specified number of threads, the given {@link ThreadFactory} and the given
* maximal amount of epoll events to handle per epollWait(...).
*
* @deprecated Use {@link #EpollEventLoopGroup(int)}, {@link #EpollEventLoopGroup(int, ThreadFactory)}, or
* {@link #EpollEventLoopGroup(int, SelectStrategyFactory)}
*/
@Deprecated
public EpollEventLoopGroup(int nThreads, ThreadFactory threadFactory, int maxEventsAtOnce,
SelectStrategyFactory selectStrategyFactory) {
super(nThreads, threadFactory, maxEventsAtOnce, selectStrategyFactory, RejectedExecutionHandlers.reject());
}
public EpollEventLoopGroup(int nThreads, Executor executor, SelectStrategyFactory selectStrategyFactory) {
super(nThreads, executor, 0, selectStrategyFactory, RejectedExecutionHandlers.reject());
}
public EpollEventLoopGroup(int nThreads, Executor executor, EventExecutorChooserFactory chooserFactory,
SelectStrategyFactory selectStrategyFactory) {
super(nThreads, executor, chooserFactory, 0, selectStrategyFactory, RejectedExecutionHandlers.reject());
}
public EpollEventLoopGroup(int nThreads, Executor executor, EventExecutorChooserFactory chooserFactory,
SelectStrategyFactory selectStrategyFactory,
RejectedExecutionHandler rejectedExecutionHandler) {
super(nThreads, executor, chooserFactory, 0, selectStrategyFactory, rejectedExecutionHandler);
}
public EpollEventLoopGroup(int nThreads, Executor executor, EventExecutorChooserFactory chooserFactory,
SelectStrategyFactory selectStrategyFactory,
RejectedExecutionHandler rejectedExecutionHandler,
EventLoopTaskQueueFactory queueFactory) {
super(nThreads, executor, chooserFactory, 0, selectStrategyFactory, rejectedExecutionHandler, queueFactory);
}
/**
* @deprecated This method will be removed in future releases, and is not guaranteed to have any impacts.
*/
@Deprecated
public void setIoRatio(int ioRatio) {
if (ioRatio <= 0 || ioRatio > 100) {
throw new IllegalArgumentException("ioRatio: " + ioRatio + " (expected: 0 < ioRatio <= 100)");
}
}
@Override
protected EventLoop newChild(Executor executor, Object... args) throws Exception {
EventLoopTaskQueueFactory queueFactory = args.length == 4 ? (EventLoopTaskQueueFactory) args[3] : null;
return new EpollEventLoop(this, executor, (Integer) args[0],
((SelectStrategyFactory) args[1]).newSelectStrategy(),
(RejectedExecutionHandler) args[2], queueFactory);
}
}
