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EventDispatcher支持不同类型fd #2381

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yanglimingcn opened this issue Sep 14, 2023 · 6 comments · May be fixed by #2560
Open

EventDispatcher支持不同类型fd #2381

yanglimingcn opened this issue Sep 14, 2023 · 6 comments · May be fixed by #2560
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@yanglimingcn
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yanglimingcn commented Sep 14, 2023 •
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Is your feature request related to a problem? (你需要的功能是否与某个问题有关?)

Describe the solution you'd like (描述你期望的解决方法)

现在brpc监听的都是socket fd，对于socket fd的处理都是OnNewMessages。有时候我们的服务需要监听一些其它类型的文件描述符，比如eventfd，然后通过eventfd来做一些逻辑，OnNewEvents。这块能否做一些扩展呢？让用户能向EventDispatcher注册这些fd并且实现自己的事件处理CallBack。
实现上，可能可以加一个Socket::DummyCreate(const SocketOptions& options, SocketId* id)，SocketOptions里面填入自己的on_edge_triggered_events CallBack和对应的eventfd

Describe alternatives you've considered (描述你想到的折衷方案)

Additional context/screenshots (更多上下文/截图)
@chenBright
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chenBright commented Sep 14, 2023 •
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用bthread_fd_wait、bthread_fd_timedwait应该就能满足需求了吧

@yanglimingcn
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看这个函数的注释，每次都要EPOLL_CTL_ADD and EPOLL_CTL_DEL，对性能有影响？我这个需求是注册上去了，后边就一直监听就可以了。

@chenBright
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chenBright commented Sep 19, 2023 •
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这样看起来不太适用

@chenBright
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chenBright commented Sep 19, 2023 •
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是不是可以将Socket中id、on_edge_triggered_events抽象到一个基类？Socket继承这个基类并实现对应的方法。有其他需求的话，就继承这个基类就好。

@yanglimingcn
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嗯，我觉得这样是可以的

@chenBright chenBright linked a pull request Mar 4, 2024 that will close this issue
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@chenBright chenBright reopened this Mar 4, 2024
@chenBright
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chenBright commented Mar 4, 2024 •
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@yanglimingcn 有空看看，提了个PR支持这个feature #2560

@chenBright chenBright added the feature new feature label Mar 4, 2024
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EventDispatcher supports various IO types chenBright/brpc
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@yanglimingcn @chenBright