package main

import "time"
import "fmt"

var (
        timeout int = 3
        job     int = 2
)

func main() {

        jobTime := time.Second * time.Duration(job)
        timeoutTime := time.Second * time.Duration(timeout)

        fmt.Printf("jobTime[%v][%T]\n", jobTime, jobTime)
        fmt.Printf("timeoutTime[%v][%T]\n", timeoutTime, timeoutTime)

        c1 := make(chan string, 1)
        go func() {
                // do some work ....
                time.Sleep(jobTime)
                c1 <- "result - job has finished in time"
        }()

        select {
        case res := <-c1:
                fmt.Println(res)
        case <-time.After(timeoutTime):
                fmt.Println("job has been timed out !!")
        }

}