/*
* Copyright (c) 2011-2018 Pivotal Software Inc, All Rights Reserved.
*
* Licensed 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 reactor.netty.resources;
import java.util.concurrent.ThreadFactory;
import io.netty.channel.Channel;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.ServerChannel;
import io.netty.channel.epoll.Epoll;
import io.netty.channel.epoll.EpollDatagramChannel;
import io.netty.channel.epoll.EpollEventLoopGroup;
import io.netty.channel.epoll.EpollServerSocketChannel;
import io.netty.channel.epoll.EpollSocketChannel;
import io.netty.channel.socket.DatagramChannel;
import io.netty.channel.socket.nio.NioDatagramChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import reactor.util.Logger;
import reactor.util.Loggers;
/**
* @author Stephane Maldini
*/
final class DefaultLoopEpoll implements DefaultLoop {
static final Loggerlog = Loggers.getLogger(DefaultLoopEpoll.class);
private static final boolean epoll;
static {
boolean epollCheck = false;
try{
Class.forName("io.netty.channel.epoll.Epoll");
epollCheck = Epoll.isAvailable();
}
catch (ClassNotFoundExceptioncnfe){
}
epoll = epollCheck;
if (log.isDebugEnabled()) {
log.debug("Default Epoll support : " + epoll);
}
}
public static boolean hasEpoll() {
return epoll;
}
@Override
public EventLoopGroupnewEventLoopGroup(int threads, ThreadFactoryfactory) {
return new EpollEventLoopGroup(threads, factory);
}
@Override
public Class<? extends ServerChannel> getServerChannel(EventLoopGroupgroup) {
return useEpoll(group) ? EpollServerSocketChannel.class : NioServerSocketChannel.class;
}
@Override
public Class<? extends Channel> getChannel(EventLoopGroupgroup) {
return useEpoll(group) ? EpollSocketChannel.class : NioSocketChannel.class;
}
@Override
public Class<? extends DatagramChannel> getDatagramChannel(EventLoopGroupgroup) {
return useEpoll(group) ? EpollDatagramChannel.class : NioDatagramChannel.class;
}
@Override
public StringgetName() {
return "epoll";
}
private boolean useEpoll(EventLoopGroupgroup) {
if (group instanceof ColocatedEventLoopGroup) {
group = ((ColocatedEventLoopGroup) group).get();
}
return group instanceof EpollEventLoopGroup;
}
}