func()

in unison/safewaitgroup.go [81:99]

• 11 lines of code
• 3 McCabe index (conditional complexity)

func (s *SafeWaitGroup) Close() {
	// When the context is cancelled, either by the parent context or by calling
	// 'cancel' directly, Close will be called.
	// The `cancel` function must always be called in order to clean up the context resources.
	// Due to `cancel` calling `Close`, we better be sure to have the mutex
	// released before calling cancel.
	// Although `cancel` is likely to be run in another go-routine, we don't want
	// to make any assumptions about implementation details of the context and cancel function.
	var wasClosed bool
	func() {
		s.mu.Lock()
		defer s.mu.Unlock()
		wasClosed, s.closed = s.closed, true
	}()

	if !wasClosed && s.cancel != nil {
		s.cancel()
	}
}