【Netty】4、谈谈SelectionKey

最新推荐文章于 2022-07-17 14:13:32 发布

黎仔656

最新推荐文章于 2022-07-17 14:13:32 发布

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分类专栏： Netty 文章标签： netty

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本文主要探讨了Netty中的SelectionKey，通过分析源码，揭示了其在非阻塞I/O中的关键作用，帮助读者理解如何在Netty应用中有效利用SelectionKey进行高效的网络通信。

原谅我先把源码放上来，再细品。。。。

/*
 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 * *
 */

package java.nio.channels;

import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;
import java.io.IOException;


/**
 * A token representing the registration of a {@link SelectableChannel} with a
 * {@link Selector}.
 *
 * <p> A selection key is created each time a channel is registered with a
 * selector.  A key remains valid until it is <i>cancelled</i> by invoking its
 * {@link #cancel cancel} method, by closing its channel, or by closing its
 * selector.  Cancelling a key does not immediately remove it from its
 * selector; it is instead added to the

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