75 lines
2.3 KiB
Java
75 lines
2.3 KiB
Java
/*
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* Copyright 2012 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;
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import java.util.concurrent.ThreadFactory;
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/**
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* Abstract base class for {@link EventLoop}'s that execute all its submitted tasks in a single thread.
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*
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*/
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public abstract class SingleThreadEventLoop extends SingleThreadEventExecutor implements EventLoop {
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/**
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*
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* @see SingleThreadEventExecutor#SingleThreadEventExecutor(EventExecutorGroup, ThreadFactory, ChannelTaskScheduler)
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*/
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protected SingleThreadEventLoop(
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EventLoopGroup parent, ThreadFactory threadFactory, ChannelTaskScheduler scheduler) {
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super(parent, threadFactory, scheduler);
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}
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@Override
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public EventLoopGroup parent() {
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return (EventLoopGroup) super.parent();
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}
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@Override
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public EventLoop next() {
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return (EventLoop) super.next();
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}
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@Override
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public ChannelFuture register(Channel channel) {
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if (channel == null) {
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throw new NullPointerException("channel");
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}
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return register(channel, channel.newPromise());
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}
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@Override
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public ChannelFuture register(final Channel channel, final ChannelPromise promise) {
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if (isShutdown()) {
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channel.unsafe().closeForcibly();
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promise.setFailure(new EventLoopException("cannot register a channel to a shut down loop"));
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return promise;
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}
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if (inEventLoop()) {
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channel.unsafe().register(this, promise);
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} else {
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execute(new Runnable() {
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@Override
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public void run() {
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channel.unsafe().register(SingleThreadEventLoop.this, promise);
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}
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});
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}
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return promise;
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}
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}
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