서버를 다시 시작하지 않고 Go\의 HTTP mux에서 핸들러를 동적으로 업데이트하려면 어떻게 해야 합니까?

<code class="go">type Handler struct {
    http.HandlerFunc
    Enabled bool
}</code>

<code class="go">type Handlers map[string]*Handler</code>

<code class="go">func (h Handlers) ServeHTTP(w http.ResponseWriter, r *http.Request) {
    path := r.URL.Path
    if handler, ok := h[path]; ok &amp;&amp; handler.Enabled {
        handler.ServeHTTP(w, r)
    } else {
        http.Error(w, "Not Found", http.StatusNotFound)
    }
}</code>

<code class="go">func (h Handlers) HandleFunc(mux HasHandleFunc, pattern string, handler http.HandlerFunc) {
    h[pattern] = &amp;Handler{handler, true}
    mux.HandleFunc(pattern, h.ServeHTTP)
}</code>

<code class="go">package main

import (
    "fmt"
    "net/http"
)

func main() {
    mux := http.NewServeMux()
    handlers := Handlers{}
    handlers.HandleFunc(mux, "/", func(w http.ResponseWriter, r *http.Request) {
        fmt.Fprint(w, "Welcome!")
        handlers["/"].Enabled = false
    })
    http.Handle("/", mux)
    http.ListenAndServe(":9020", nil)
}</code>