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? ??? ?? Golang Golang ?? ???? ????? ???? ??? ??????

Golang ?? ???? ????? ???? ??? ??????

Nov 08, 2024 pm 04:42 PM

How to Gracefully Terminate a Golang Ticker Goroutine?

Golang? Ticker Stop ??

Golang? Ticker ???? ??? ? Stop()? ??? ? ??? ???? ?? ?????. ?? ????. Stop()? ???? ?? ??? ????? ????? ??? ??? ????.

??? ?????.

package main

import (
    "time"
    "log"
)

func main() {
    ticker := time.NewTicker(1 * time.Second)
    go func(){
        for _ = range ticker.C {
            log.Println("tick")
        }
        log.Println("stopped")
    }()
    time.Sleep(3 * time.Second)
    log.Println("stopping ticker")
    ticker.Stop()
    time.Sleep(3 * time.Second)
}

? ??? ??? ?? ??? ?????. ?? ??? Ticker.Stop()? ???? ????? ?? ???? ?? ??? ?????. ?? ???? ???? ??? ????? ??? ??? ??? ???? ??? ?? ????? ?? ??? ???????.

??? ? ?? ?? ??

? ?? ???? ???? ??? ????. ?? ??? ?? ??? ??? ?? ? ?? ?????.

package main

import (
    "log"
    "time"
)

// Every runs the provided function periodically, allowing the function to control when to stop.
func Every(duration time.Duration, work func(time.Time) bool) chan bool {
    ticker := time.NewTicker(duration)
    stop := make(chan bool, 1) // Channel for signaling stop

    go func() {
        defer log.Println("ticker stopped")
        for {
            select {
            case time := <-ticker.C:
                if !work(time) { // Function decides to stop
                    stop <- true
                }
            case <-stop: // Signal to stop has been received
                return
            }
        }
    }()

    return stop
}

func main() {
    stop := Every(1*time.Second, func(time.Time) bool {
        log.Println("tick")
        return true
    })

    time.Sleep(3 * time.Second)
    log.Println("stopping ticker")
    stop <- true // Send the stop signal on the stop channel
    time.Sleep(3 * time.Second)
}

? ??? ????, Every() ??? ?? ??? ???? ??? ???? ?? ?? ???? ??? ?? ?????. ?? ??? ?? ???? ?? ??? ???? ????? ????? ?? ? ?????.

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