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 
21 #include "account_delegate.h"
22 #include "executor_pool.h"
23 
24 namespace OHOS {
25 namespace DistributedKv {
26 // KvStore account event proc controller.
27 extern std::atomic<int> g_kvStoreAccountEventStatus;
28 #define KVSTORE_ACCOUNT_EVENT_PROCESSING_CHECKER(result) \
29 do { \
30     if (g_kvStoreAccountEventStatus == 1) { \
31         ZLOGW("system is busy with processing account event."); \
32     } \
33 } while (0)
34 class KvStoreDataService;
35 class KvStoreAccountObserver : public AccountDelegate::Observer {
36 public:
KvStoreAccountObserver(KvStoreDataService & kvStoreDataService,std::shared_ptr<ExecutorPool> executors)37     explicit KvStoreAccountObserver(KvStoreDataService &kvStoreDataService,
38         std::shared_ptr<ExecutorPool> executors)
39         : kvStoreDataService_(kvStoreDataService), executors_(executors)
40     {
41     }
42     ~KvStoreAccountObserver() override = default;
43 
44     void OnAccountChanged(const AccountEventInfo &eventInfo) override;
45     // must specify unique name for observer
Name()46     std::string Name() override
47     {
48         return "DistributedDataService";
49     }
50 
GetLevel()51     LevelType GetLevel() override
52     {
53         return LevelType::LOW;
54     }
55 
56 private:
57     KvStoreDataService &kvStoreDataService_;
58     std::shared_ptr<ExecutorPool> executors_;
59 };
60 }  // namespace DistributedKv
61 }  // namespace OHOS
62 #endif // KVSTORE_ACCOUNT_OBSERVER_H
63