grm.lock.Lock()
	defer grm.lock.Unlock()

	for {
		if len(grm.operations) == 0 || grm.nothingPending() {
			break
		} else {
			grm.cond.Wait()
		}
	}
}

// Check if any operation is pending. Already assumes caller has the
// necessary locks
func (grm *goRoutineMap) nothingPending() bool {
	nothingIsPending := true
	for _, operation := range grm.operations {