mkfifo导致终端挂？ [英] mkfifo causes terminal to hang?

问题描述

mkfifo 根本不能使用Cygwin吗？一组简单的命令，如

  $ mkfifo my_pipe 
 
 $ echo1234> my_pipe 
  

只会导致终端永远停留在光标闪烁的状态。

解决方案

不，不会发生任何错误

$ p
$ b $ p

你缺少的是那些管道的另一端 ，读取该数据。这个明显的挂起发生在Linux中，所以它不是一个CygWin问题（或任何类型的问题，真的）。

只要打开另一个窗口并输入：

  cat< my_pipe 
  

，您将看到数据显示，然后是原始 echo 完成。

Does mkfifo simply not work with Cygwin? A simple set of commands such as

$ mkfifo my_pipe

$ echo "1234" > my_pipe

just causes the terminal to sit forever with the cursor blinking. Am I "doing it wrong"?

解决方案

No, you're not doing anything wrong with either of those commands, it's just your expectations are a little off.

What you're missing is something at the other end of that pipe, reading that data. This apparent hanging happens in Linux as well, so it's not a CygWin problem (or any sort of problem, really).

Just open up another window and enter:

cat <my_pipe

and you'll see the data appear, followed by the original echo completing.

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