sync.RWMutex.readerWait (field)

3 uses

	sync (current package)
		rwmutex.go#L44: 	readerWait  atomic.Int32 // number of departing readers
		rwmutex.go#L135: 	if rw.readerWait.Add(-1) == 0 {
		rwmutex.go#L154: 	if r != 0 && rw.readerWait.Add(r) != 0 {