如何以编程方式关闭节点程序并重新启动它而不使用任何库？ [英] How can I programmatically shutdown a node program and restart it without using any libraries?

问题描述

我需要关闭一个节点程序并让它重新启动。我需要在自己的程序中执行此操作，而不必使用像永远需要设置的东西。

I need to shutdown a node program and have it restart. I need to do this within the itself program without having to use something like forever needing to be setup.

我知道我可以使用process.exit（）来关闭程序，但是我能想到的任何东西都可以打开它，我可以从内部开始在完成之前，process.exit（）将终止该节点。有没有办法在退出之前我没有看到从进程中分离exec调用？还有其他想法吗？我是否必须将其吸收并永远使用？

I know I can use process.exit() to shut the program down, but anything I can think of that would open it back up that I can kick off from within node would be killed by process.exit() before it could finish. Is there a way I'm not seeing to detach a exec call from the process before I exit? Any other ideas? Do I have to suck it up and go use forever?

推荐答案

快速而肮脏，未经过充分测试：

Quick and dirty, not very well tested:

var child_process = require('child_process');

process.on('SIGINT', function() {
  console.log('restarting...');
  child_process.fork(__filename); // TODO: pass args...
  process.exit(0);
});

console.log('Running as %d', process.pid);

setTimeout(function(){}, 1000000); // just some code to keep the process running

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