1 /* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef DISTRIBUTEDDATAMGR_DATAMGR_SERVICE_REF_COUNT_H 17 #define DISTRIBUTEDDATAMGR_DATAMGR_SERVICE_REF_COUNT_H 18 #include <atomic> 19 #include <functional> 20 #include <memory> 21 namespace OHOS::DistributedKv { 22 class RefCount final { 23 public: 24 RefCount(); 25 explicit RefCount(std::function<void()> action); 26 RefCount(const RefCount &other); 27 RefCount(RefCount &&other) noexcept; 28 RefCount &operator=(const RefCount &other); 29 RefCount &operator=(RefCount &&other) noexcept; 30 operator bool() const; 31 32 private: 33 std::shared_ptr<const char> ref_; 34 }; 35 } // namespace OHOS::DistributedKv 36 #endif // DISTRIBUTEDDATAMGR_DATAMGR_SERVICE_REF_COUNT_H 37