I'm not entirely sure, but my intuition says that using `time.After` like
that with pending sends from another goroutine will cause that goroutine to
leak. A better solution may be to use the `WithTimeout` functionality of
the `context` package and then periodically check the `Done()` channel to
see if the timeout has expired. It works something like this if you imagine
`HeavyWork` is a call to an external API:
https://play.golang.org/p/DRtgNBLnE5 .
On Sunday, August 6, 2017 at 3:53:36 AM UTC-4, Abhijit Desai wrote:
>
> Can you please help with below code to get output at specific cutoff time
> and exit
>
> Thanks in advance
>
> Abhi
>
>
>
> package main
>
> import "time"
> import "fmt"
>
> func main() {
>
> c1 := make(chan string)
>
> go func() { //Sending data after certain time
>
> c1 <- "result 1"
>
> time.Sleep(time.Second * 1)
> c1 <- "result 2 afer 1 sec"
>
> time.Sleep(time.Second * 1)
> c1 <- "result 2 afer 2 sec"
>
> time.Sleep(time.Second * 1)
> c1 <- "result 2 afer 3 sec"
>
> time.Sleep(time.Second * 1)
> c1 <- "result 2 afer 4 sec"
>
> time.Sleep(time.Second * 1)
> c1 <- "result 2 afer 5 sec"
> }()
>
> select {
> case <-time.After(time.Second * 4): { //cut off 4s and return the
> value
> res := <-c1
> fmt.Println(res) // expecting result "result 2 afer 3 sec"
> but returning "result 1"
> }
> }
> }
>
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