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Go · Class

sync.WaitGroup

sync.WaitGroup tracks unfinished goroutines or tasks. Call Go, or use Add and Done, then call Wait to block until the counter reaches zero.

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Syntax

type WaitGroup struct{}
func (wg *WaitGroup) Add(delta int)
func (wg *WaitGroup) Done()
func (wg *WaitGroup) Wait()
func (wg *WaitGroup) Go(f func())

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  • sync.WaitGroup.Add
  • sync.WaitGroup.Done
  • sync.WaitGroup.Wait
  • sync.WaitGroup.Go

Source: The Go Programming Language — src/sync/waitgroup.go. Checked 2026-11-03.