Wait group golang

Golang waitgroup

package main

import (
    "fmt"
    "sync"
    "time"
)

func worker(id int) {
    fmt.Printf("Worker %d starting\n", id)

    time.Sleep(time.Second)
    fmt.Printf("Worker %d done\n", id)
}

func main() {

    var wg sync.WaitGroup

    for i := 1; i <= 5; i++ {
        wg.Add(1)

        i := i

        go func() {
            defer wg.Done()
            worker(i)
        }()
    }

    wg.Wait()

}

Source: gobyexample.com

Golang waitgroup

var wg sync.WaitGroup

for i := 1; i <= 5; i++ {
	wg.Add(1)
	go func(wg *sync.WaitGroup) {
		wg.Done()
	}()
}

wg.Wait()

Wait group golang

package main

	

import (
    "fmt"
    "sync"
    "time"
)

func worker(id int, wg *sync.WaitGroup) {
    defer wg.Done()
    fmt.Printf("Worker %d starting\n", id)
    time.Sleep(time.Second)
    fmt.Printf("Worker %d done\n", id)
}

	

func main() {
    var wg sync.WaitGroup
    for i := 1; i <= 5; i++ {
        wg.Add(1)
        go worker(i, &wg)
    }
    wg.Wait()
}

Similar codes

0 vote238 views1 answer
Golang convert rune to string
Go
0 vote292 views1 answer
Golang eliminate duplicate spaces
Go
1 vote242 views1 answer
Golang flagset check to see if arg is available but has no value
Go
1 vote238 views4 answers
Linux kill process by user
Go
-1 vote226 views1 answer
Go functions
Go
1 vote243 views1 answer
Golang sleep
Go
0 vote286 views2 answers
Go Iterating over an array in Golang
Go
0 vote232 views1 answer
"What makes Cygnus X-1 a good black-hole candidate?"
Go
0 vote203 views1 answer
Check if gorm created successfully
Go
0 vote247 views1 answer
Overwrite file
Go