Your program exits because the channel is buffered, so the main goroutine
exits immediately once it has sent the value to the channel. Once the main
goroutine returns, the program will exit.
On Saturday, 6 August 2016 08:38:54 UTC+10, Jon Strauss wrote:
>
> Hello,
> I have the following code:
>
> package main
>
> import "fmt"
> import "encoding/hex"
> import "os"
>
> func main() {
> var bytes []byte
> var channel chan []byte
>
> file,_ := os.OpenFile("/dev/random", os.O_RDONLY, 0)
> bytes = make([]byte,20)
> _, _ = file.Read(bytes)
>
> channel = make(chan []byte,1)
> go worker(channel)
> channel <- bytes
> }
>
> func worker(channel chan []byte) {
> var dest string
>
> bytes := <-channel
> dest = hex.EncodeToString(bytes)
> fmt.Println(dest)
>
>
> }
>
>
> Instead of printing a hex string the program simply exits. What am I doing
> wrong?
> -William
>
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