[go-nuts] Multiple Goroutine timeout

[desaiabhijit]

I am expecting to show url1 (2 sec ), url2 (4 sec ) but not url3( 6 sec) 
where timeout is 5 sec

but program showing only url1 value

Please help

https://play.golang.org/p/aMOoSEHjmZ

Thanks in advance

Rgds,

Abhi


package main

import "fmt"
import "time"

func InvokeUrl1(u string, val chan<- string) {
    time.Sleep(2 * time.Second)
    val <- "Url1 Value"
}
func InvokeUrl2(u string, val chan<- string) {
    time.Sleep(4 * time.Second)
    val <- "Url2 Value"
}
func InvokeUrl3(u string, val chan<- string) {
    time.Sleep(6 * time.Second)
    val <- "Url3 Value"
}

func GetUrlValues(urls []string) {

    ch := make(chan string, 1)
    for _, url := range urls {
        go func(u string) {
            val := make(chan string)
            if u == "url1" {
              go InvokeUrl1(u, val)
            } else if u == "url2" {
              go InvokeUrl2(u, val)
            } else if u == "url3" {
              go InvokeUrl3(u, val)
            }

            select {
            case ret := <-val:
                ch <- ret
            case <-time.After(5 * time.Second):
                ch <- "nil"
            }
        }(url)
    }
    fmt.Println(<-ch)
}
func main() {
  GetUrlValues([]string{"url1", "url2", "url3"})
}

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