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_ACCOUNT_OBSERVER_H 17 #define KVSTORE_ACCOUNT_OBSERVER_H 18 19 #include <atomic> 20 #include "account_delegate.h" 21 22 namespace OHOS { 23 namespace DistributedKv { 24 // KvStore account event proc controller. 25 extern std::atomic<int> g_kvStoreAccountEventStatus; 26 #define KVSTORE_ACCOUNT_EVENT_PROCESSING_CHECKER(result) \ 27 do { \ 28 if (g_kvStoreAccountEventStatus == 1) { \ 29 ZLOGW("system is busy with processing account event."); \ 30 } \ 31 } while (0) 32 class KvStoreDataService; 33 class KvStoreAccountObserver : public AccountDelegate::Observer { 34 public: KvStoreAccountObserver(KvStoreDataService & kvStoreDataService)35 explicit KvStoreAccountObserver(KvStoreDataService &kvStoreDataService) 36 : kvStoreDataService_(kvStoreDataService) {} 37 ~KvStoreAccountObserver() override = default; 38 39 void OnAccountChanged(const AccountEventInfo &eventInfo) override; 40 // must specify unique name for observer Name()41 std::string Name() override 42 { 43 return "DistributedDataService"; 44 } 45 GetLevel()46 LevelType GetLevel() override 47 { 48 return LevelType::LOW; 49 } 50 51 private: 52 KvStoreDataService &kvStoreDataService_; 53 }; 54 } // namespace DistributedKv 55 } // namespace OHOS 56 #endif // KVSTORE_ACCOUNT_OBSERVER_H 57