Node.js将响应对象句柄的句柄传递给子进程 [英] Node.js pass handle of response object handle to child process

问题描述

我有一个 http 服务器和一个分叉的子进程。我希望父级接收请求并使用 worker.send 传递给分叉进程。并且worker应该能够使用相同的响应对象处理并将响应发送回请求者。

I have an http server and a forked child process. I want the parent to receive requests and pass to forked process using worker.send. and the worker should be able to process and send the response back to the requester using the same response object.

我尝试在<$的第二个参数中发送响应对象c $ c> worker.send ，但它给出错误此句柄类型无法发送

I tried sending the response object in the second parameter of worker.send, but it gives the error This handle type can't be sent

var child_process = require('child_process');

var worker = child_process.fork(filename);

http.createServer(function (req, res) {
    worker.send({ 'event': 'start' }, res); // send response object
}).listen(4000);

我检查了child_process.js文件，并说它是否属于某些类型，它会抛出错误。

I checked in the child_process.js file and it says if it doesn't belongs to some of the types, it will throw the error.

我想知道是否还有其他选项可以将响应对象发送给分叉的孩子。

I want to know if there are any other options by which I can send the response object to the forked child.

编辑：

好的，这是我发现的，我只是更改了以下内容

Okay, here's what I found, I just changed the following

// Instead of
// worker.send({ 'event': 'start' }, res);
worker.send({ 'event': 'start' }, res.socket);

分叉流程可以调用写在它得到的处理程序上。

And the forked process is able to call write on the handler it gets.

这是正确的吗？我可以这样使用吗？或者在某些等等条件下是否会产生任何影响？

Is it correct? Can I use it this way? or will there be any implications under some blah blah conditions?

推荐答案

worker.send仅接收来自net.createServer的请求功能。使用'net'包而不是http更好地尝试。这解决了我的问题

The worker.send only takes requests coming from a net.createServer function. Try better with 'net' package instead of http. This resolved my issue

这篇关于Node.js将响应对象句柄的句柄传递给子进程的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！