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[Golang] Wait For Goroutines to Finish

 3 years ago
source link: http://siongui.github.io/2015/03/23/go-wait-for-goroutine-to-finish/
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Channel [1]

Wait for all goroutines to finish via channels:

Run Code on Go Playground

package main

import (
      "fmt"
)

func routine(site string, c chan int) {
      defer func() { c <- 1 }()

      // do something
      fmt.Println(site)
}

func main() {
      c := make(chan int)

      sites := []string{
              "https://www.google.com/",
              "https://duckduckgo.com/",
              "https://www.bing.com/"}

      for _, site := range sites {
              go routine(site, c)
      }

      // wait all goroutines to finish
      for i := 0; i < len(sites); i++ {
              <-c
      }
}

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