首页 \ 问答 \ 我如何实现epoll超时?(How do I implement epoll timeout?)

我如何实现epoll超时?(How do I implement epoll timeout?)

我正在使用epoll进行网络编程。 这似乎工作正常。 我想添加一个超时函数,所以如果客户端长时间没有发送任何东西,那么它只会断开客户端。

我该怎么做呢? 我知道我可以在epoll_wait中设置超时时间,但这不适用于单个套接字...

提前致谢...


I am working on a network programming using epoll. It seems like working fine. I would like to add a timeout function so if a client doesn't sent anything for a long period time then it will just disconnect the client.

How do I do this? I know that I can set the timeout in epoll_wait but this is not for the individual socket...

Thanks in advance...


原文:https://stackoverflow.com/questions/6590531
更新时间:2023-12-08 18:12

最满意答案

您期待的解决方案如下所示。 但是您的输出与输入文件不匹配

awk 'FNR==NR{ hashKey[$2]=$1; next }$1 in hashKey{$1=hashKey[$1]}1' FS='\t' file1 file2

我们的想法是在第一个文件的第二列中散列值,这是以制表符分隔的。 然后,在第一列中存在于哈希表中的那些值的第二个值上,我们更新存储的哈希值。


The solution you are looking forward to is something like below. But your output does not match your input file

awk 'FNR==NR{ hashKey[$2]=$1; next }$1 in hashKey{$1=hashKey[$1]}1' FS='\t' file1 file2

The idea is we hash the values in the second column of the first file which is tab-separated. Then on the second values for those values in first column which are present in the hash table, we update the value from the stored hash.

相关问答

更多

相关文章

更多

最新问答

更多
  • 获取MVC 4使用的DisplayMode后缀(Get the DisplayMode Suffix being used by MVC 4)
  • 如何通过引用返回对象?(How is returning an object by reference possible?)
  • 矩阵如何存储在内存中?(How are matrices stored in memory?)
  • 每个请求的Java新会话?(Java New Session For Each Request?)
  • css:浮动div中重叠的标题h1(css: overlapping headlines h1 in floated divs)
  • 无论图像如何,Caffe预测同一类(Caffe predicts same class regardless of image)
  • xcode语法颜色编码解释?(xcode syntax color coding explained?)
  • 在Access 2010 Runtime中使用Office 2000校对工具(Use Office 2000 proofing tools in Access 2010 Runtime)
  • 从单独的Web主机将图像传输到服务器上(Getting images onto server from separate web host)
  • 从旧版本复制文件并保留它们(旧/新版本)(Copy a file from old revision and keep both of them (old / new revision))
  • 西安哪有PLC可控制编程的培训
  • 在Entity Framework中选择基类(Select base class in Entity Framework)
  • 在Android中出现错误“数据集和渲染器应该不为null,并且应该具有相同数量的系列”(Error “Dataset and renderer should be not null and should have the same number of series” in Android)
  • 电脑二级VF有什么用
  • Datamapper Ruby如何添加Hook方法(Datamapper Ruby How to add Hook Method)
  • 金华英语角.
  • 手机软件如何制作
  • 用于Android webview中图像保存的上下文菜单(Context Menu for Image Saving in an Android webview)
  • 注意:未定义的偏移量:PHP(Notice: Undefined offset: PHP)
  • 如何读R中的大数据集[复制](How to read large dataset in R [duplicate])
  • Unity 5 Heighmap与地形宽度/地形长度的分辨率关系?(Unity 5 Heighmap Resolution relationship to terrain width / terrain length?)
  • 如何通知PipedOutputStream线程写入最后一个字节的PipedInputStream线程?(How to notify PipedInputStream thread that PipedOutputStream thread has written last byte?)
  • python的访问器方法有哪些
  • DeviceNetworkInformation:哪个是哪个?(DeviceNetworkInformation: Which is which?)
  • 在Ruby中对组合进行排序(Sorting a combination in Ruby)
  • 网站开发的流程?
  • 使用Zend Framework 2中的JOIN sql检索数据(Retrieve data using JOIN sql in Zend Framework 2)
  • 条带格式类型格式模式编号无法正常工作(Stripes format type format pattern number not working properly)
  • 透明度错误IE11(Transparency bug IE11)
  • linux的基本操作命令。。。