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Index ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type WaitGroup ¶
type WaitGroup struct {
Chan chan struct{}
// contains filtered or unexported fields
}
WaitGroup is simalar to sync.WaitGroup but mixin a channel to limit parallelism
func (*WaitGroup) Add ¶
func (wg *WaitGroup) Add()
Add will firstly apply channel send and then call underlying WaitGroup.Add(1) it blocks if too many goroutine call Add
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