在 Node.js 中检测 CTRL+C
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Detecting CTRL+C in Node.js
提问by user3025492
I got this code from a different SO question, but node complained to use process.stdin.setRawMode instead of tty, so I changed it.
我从一个不同的 SO 问题中得到了这段代码，但是节点抱怨使用 process.stdin.setRawMode 而不是 tty，所以我改变了它。
Before:
前：
var tty = require("tty");
process.openStdin().on("keypress", function(chunk, key) {
if(key && key.name === "c" && key.ctrl) {
console.log("bye bye");
process.exit();
}
});
tty.setRawMode(true);
After:
后：
process.stdin.setRawMode(true);
process.stdin.on("keypress", function(chunk, key) {
if(key && key.name === "c" && key.ctrl) {
console.log("bye bye");
process.exit();
}
});
In any case, it's just creating a totally nonresponsive node process that does nothing, with the first complaining about tty, then throwing an error, and the second just doing nothing and disabling Node's native CTRL+Chandler, so it doesn't even quit node when I press it. How can I successfully handle Ctrl+Cin Windows?
在任何情况下，它只是创建一个完全无响应的节点进程，它什么都不做，第一个抱怨tty，然后抛出错误，第二个什么都不做并禁用 Node 的本机CTRL+C处理程序，所以当我时它甚至不退出节点按下。如何在Windows 中成功处理Ctrl+ ？C
回答by slezica
If you're trying to catch the interrupt signal SIGINT, you don't need to read from the keyboard. The processobject of nodejsexposes an interrupt event:
如果您试图捕捉中断信号SIGINT，则不需要从键盘读取。的process对象nodejs暴露一个中断事件：
process.on('SIGINT', function() {
console.log("Caught interrupt signal");
if (i_should_exit)
process.exit();
});
Edit: doesn't work on Windows without a workaround. See here
编辑：如果没有解决方法，则无法在 Windows 上运行。看这里
回答by honzajde
For those who need the functionality, I found death (npm nodule, hah!).
对于那些需要功能的人，我发现了死亡（npm 结节，哈哈！）。
Author also claimsit works on windows:
作者还声称它适用于 Windows：
It's only been tested on POSIX compatible systems. Here's a nice discussion on Windows signals, apparently, this has been fixed/mapped.
它仅在 POSIX 兼容系统上进行了测试。这是关于 Windows 信号的一个很好的讨论，显然，这已被修复/映射。
I can confirm CTRL+Cworks on win32 (yes, I am surprised).
我可以确认CTRL+C在 win32 上工作（是的，我很惊讶）。
