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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 NTP_UPDATE_TIME_H
17 #define NTP_UPDATE_TIME_H
18 
19 #include <string>
20 
21 namespace OHOS {
22 namespace MiscServices {
23 struct AutoTimeInfo {
24     std::string NTP_SERVER;
25     std::string status;
26     int64_t lastUpdateTime;
27 };
28 
29 class NtpUpdateTime {
30 public:
31     static NtpUpdateTime &GetInstance();
32     static void SetSystemTime();
33     void RefreshNetworkTimeByTimer(uint64_t timerId);
34     void UpdateNITZSetTime();
35     void Stop();
36     void Init();
37     int32_t MonitorNetwork();
38     bool IsValidNITZTime();
39 
40 private:
41     NtpUpdateTime();
42     static void ChangeNtpServerCallback(const char *key, const char *value, void *context);
43     static bool GetAutoTimeInfoFromFile(AutoTimeInfo &info);
44     static bool SaveAutoTimeInfoToFile(const AutoTimeInfo &info);
45     void SubscriberNITZTimeChangeCommonEvent();
46     void StartTimer();
47     void RefreshNextTriggerTime();
48     bool CheckStatus();
49     void RegisterNtpServerListener();
50 
51     static AutoTimeInfo autoTimeInfo_;
52     uint64_t timerId_;
53     uint64_t nitzUpdateTimeMilli_;
54     uint64_t nextTriggerTime_;
55 };
56 } // namespace MiscServices
57 } // namespace OHOS
58 #endif