1 /* 2 * Copyright (c) 2021 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 KVSTORE_UTILS_H 17 #define KVSTORE_UTILS_H 18 19 #include <string> 20 #include <atomic> 21 #include "visibility.h" 22 23 namespace OHOS { 24 namespace DistributedKv { 25 class KvStoreUtils { 26 public: 27 // convert the name to the anonymous 28 // the anonymous string is name[0,3]"***"name[end-3, end] 29 // when the anonymous string is shorter than 9, the anonymous is "******" 30 KVSTORE_API static std::string ToBeAnonymous(const std::string &name); 31 32 KVSTORE_API static uint64_t GenerateSequenceId(); 33 private: 34 static constexpr int MAIN_USER_ID = 0; 35 static constexpr int SYSTEM_UID = 1000; 36 static std::atomic<uint64_t> sequenceId_; 37 }; 38 } // namespace DistributedKv 39 } // namespace OHOS 40 #endif // KVSTORE_UTILS_H 41