func (j *MyJob) Run(t tq.TimeSetter) {
if j.nr_exec_times >= 3 {
fmt.Printf("I'm tired, I will stop.\n")
t.Stop()
j.ch <- true
return
}
if j.backoff == 0 {
j.backoff = 2
} else {
j.backoff <<= 1
}
t.After(j.backoff)
fmt.Printf("Hello, I have been executed %d time(s).\n", j.nr_exec_times)
j.nr_exec_times++
}
