timewheel

provide a golang library of timewheel refer to the linux kernel timer.

Install

go get github.com/brucemaclin/timewheel

Use

package main
import (
 tw "github.com/brucemaclin/timewheel"
 "time"
 "strconv"
 "fmt"
)
  
func getTestTask(interval int64) *tw.Task {
  task := &tw.Task{
    Expires: uint64(time.Now().UnixNano()/1000/1000 + interval),
  }
  task.Handle = test
  task.Data = &result{
    succ: make(chan string),
    data: time.Now().String(),
  }
  task.NeedCycle = true
  task.JobID = strconv.Itoa(int(interval))
  task.RunWeekdays[2] = true
  task.RunWeekdays[3] = true
  return task
}

func test(v interface{}) {
  d := v.(*result)
  fmt.Printf("my first timewheel %v\n", d.data)
  d.succ <- "succ"
}

type result struct {
 succ chan string
 data string
}

var mytw *tw.TimeWheel

func init() {
  mytw = tw.InitTimeWheel(1000)
  go mytw.Run()
}
func main() {
  task0 := getTestTask(0)
  mytw.AddTimer(task0)
  succ := <-task0.Data.(*result).succ
  fmt.Println(succ)
 }