77     item.end = tp + std::chrono::milliseconds(milliseconds);  in add()
78     TEST_SYNC_POINT_CALLBACK("TimeQueue::Add:item.end", &item.end);  in add()
108         newItem.end = Clock::time_point();  in cancel()
132         item.end = Clock::time_point();  in cancelAll()
150       auto end = calcWaitTime_lock();  in run()  local
151       if (end.first) {  in run()
154         m_checkWork.wait_until(lk, end.second);  in run()
174         return std::make_pair(true, m_items.top().end);  in calcWaitTime_lock()
187     while (m_items.size() && m_items.top().end <= Clock::now()) {  in checkWork()
201           item.end = Clock::now() + std::chrono::milliseconds(new_period);  in checkWork()
214     Clock::time_point end;  member
218     bool operator>(const WorkItem& other) const { return end > other.end; }