取消当前运行的功能/goroutine [英] Cancel currently running function/goroutine
问题描述
我正在使用 gin-gonic 作为HTTP处理程序.我想在用户发出 POST 请求后预渲染一些图形资源.为此，我放置了一个中间件，该中间件将一个函数(内部带有计时器)分配给 map [string] func()，并在分配后直接调用该函数.
I'm using gin-gonic as HTTP handler. I want to prerender some graphical resources after my users make POST request. For this, I put a middleware that assign a function (with a timer inside) to a map[string]func() and call this function directly after assignation.
问题是，当用户发出两个后续请求时，该函数被调用两次.
The problem is, when the user make two subsequent request, the function is called twice.
有什么方法可以清除函数ref和/或他当前正在运行的调用，如Java中的 clearInterval 或 clearTimeout 吗?
Is there any way to clear function ref and/or his currently running call like a clearInterval or clearTimeout in Javascript ?
谢谢
推荐答案
否；您计划作为goroutine运行的任何函数都需要返回或调用 runtime.Goexit .
No; whatever function you've scheduled to run as a goroutine needs to either return or call runtime.Goexit.
如果您正在寻找一种在您的工作程序中建立取消的方法，Go提供了一个处理该问题的原语，它已经是任何HTTP请求(上下文)的一部分.在Go博客中查看以下文章:
If you're looking for a way to build cancellation into your worker, Go provides a primitive to handle that, which is already part of any HTTP request - contexts. Check out these articles from the Go blog:
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