| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #ifndef GEODE_TRACKEDMAPENTRY_H_ |
| #define GEODE_TRACKEDMAPENTRY_H_ |
| |
| #include "MapEntry.hpp" |
| |
| namespace apache { |
| namespace geode { |
| namespace client { |
| |
| class TrackedMapEntry final : public MapEntry { |
| public: |
| // Constructor should be invoked only when starting the tracking |
| // of a MapEntry, so m_trackingNumber is initialized with 1. |
| inline TrackedMapEntry(const std::shared_ptr<MapEntryImpl>& entry, |
| int trackingNumber, int updateCount) |
| : m_entry(const_cast<std::shared_ptr<MapEntryImpl>&>(entry)), |
| m_trackingNumber(trackingNumber), |
| m_updateCount(updateCount) {} |
| |
| virtual ~TrackedMapEntry() {} |
| |
| std::shared_ptr<MapEntryImpl> getImplPtr() final { return m_entry; } |
| |
| int addTracker(std::shared_ptr<MapEntry>&) final { |
| ++m_trackingNumber; |
| return m_updateCount; |
| } |
| |
| std::pair<bool, int> removeTracker() final { |
| if (m_trackingNumber > 0) { |
| --m_trackingNumber; |
| } |
| if (m_trackingNumber == 0) { |
| m_updateCount = 0; |
| return std::make_pair(true, 0); |
| } |
| return std::make_pair(false, m_trackingNumber); |
| } |
| |
| int incrementUpdateCount(std::shared_ptr<MapEntry>&) final { |
| return ++m_updateCount; |
| } |
| |
| int getTrackingNumber() const final { return m_trackingNumber; } |
| |
| int getUpdateCount() const final { return m_updateCount; } |
| |
| void getKey(std::shared_ptr<CacheableKey>& result) const final; |
| |
| void getValue(std::shared_ptr<Cacheable>& result) const final; |
| |
| void setValue(const std::shared_ptr<Cacheable>& value) final; |
| |
| LRUEntryProperties& getLRUProperties() final; |
| |
| ExpEntryProperties& getExpProperties() final; |
| |
| VersionStamp& getVersionStamp() final; |
| |
| void cleanup(const CacheEventFlags eventFlags) final; |
| |
| private: |
| std::shared_ptr<MapEntryImpl> m_entry; |
| int m_trackingNumber; |
| int m_updateCount; |
| }; |
| } // namespace client |
| } // namespace geode |
| } // namespace apache |
| |
| #endif // GEODE_TRACKEDMAPENTRY_H_ |