Golang: Implementing a cron / executing tasks at a specific time

Question

I have been looking around for examples on how to implement a function that allows you to execute tasks at a certain time in Go, but I couldn't find anything.

I implemented one myself and I am sharing it in the answers, so other people can have a reference for their own implementation.

Answer 1

This is a general implementation, which lets you set:

• interval period
• hour to tick
• minute to tick
• second to tick

UPDATED: (the memory leak was fixed)

import ( "fmt" "time" )  const INTERVAL_PERIOD time.Duration = 24 * time.Hour  const HOUR_TO_TICK int = 23 const MINUTE_TO_TICK int = 00 const SECOND_TO_TICK int = 03  type jobTicker struct {     timer *time.Timer }  func runningRoutine() {     jobTicker := &jobTicker{}     jobTicker.updateTimer()     for {         <-jobTicker.timer.C         fmt.Println(time.Now(), "- just ticked")         jobTicker.updateTimer()     } }  func (t *jobTicker) updateTimer() {     nextTick := time.Date(time.Now().Year(), time.Now().Month(),      time.Now().Day(), HOUR_TO_TICK, MINUTE_TO_TICK, SECOND_TO_TICK, 0, time.Local)     if !nextTick.After(time.Now()) {         nextTick = nextTick.Add(INTERVAL_PERIOD)     }     fmt.Println(nextTick, "- next tick")     diff := nextTick.Sub(time.Now())     if t.timer == nil {         t.timer = time.NewTimer(diff)     } else {         t.timer.Reset(diff)     } }