1 /*
2 * Copyright (c) 2024 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 #ifdef FEATURE_GNSS_SUPPORT
17 #ifdef TIME_SERVICE_ENABLE
18 #include "time_manager.h"
19
20 #include <string>
21 #include "common_utils.h"
22 #include "elapsed_real_time_check.h"
23 #include "location_log.h"
24 #include "time_service_client.h"
25
26 namespace OHOS {
27 namespace Location {
28 const int64_t INVALID_TIME = 0;
29 const int64_t GPS_UTC_REFERENCE_TIME = 946656000; // 946656000:UTC time of 2000-01-01 00:00:00
30
GetCurrentTime()31 int64_t TimeManager::GetCurrentTime()
32 {
33 LBSLOGI(GNSS, "beginning timestamp_ is %{public}s", std::to_string(timestamp_).c_str());
34 if (timestamp_ < GPS_UTC_REFERENCE_TIME) {
35 return INVALID_TIME;
36 }
37 if (!ElapsedRealTimeCheck::GetInstance()->CanTrustElapsedRealTime()) {
38 LBSLOGI(GNSS, "getCurrentTime ElapsedRealTime INVALID_TIME");
39 return INVALID_TIME;
40 }
41
42 int64_t timeTillNow = MiscServices::TimeServiceClient::GetInstance()->GetBootTimeMs() - timeSinceBoot_;
43 if (timeTillNow >= expireTime_) {
44 LBSLOGI(GNSS, "getCurrentTime INVALID_TIME");
45 return INVALID_TIME;
46 } else {
47 LBSLOGI(GNSS, "getCurrentTime:%{public}s", std::to_string(timestamp_ + timeTillNow).c_str());
48 return timestamp_ + timeTillNow;
49 }
50 }
51
SetCurrentTime(int64_t msTime,int64_t msTimeSynsBoot)52 void TimeManager::SetCurrentTime(int64_t msTime, int64_t msTimeSynsBoot)
53 {
54 timestamp_ = msTime;
55 timeSinceBoot_ = msTimeSynsBoot;
56 LBSLOGI(GNSS, "setCurrentTime timestamp_:%{public}s, mTimeReference:%{public}s",
57 std::to_string(timestamp_).c_str(), std::to_string(timeSinceBoot_).c_str());
58 }
59
GetTimestamp()60 int64_t TimeManager::GetTimestamp()
61 {
62 return timestamp_;
63 }
64
65 } // namespace Location
66 } // namespace OHOS
67 #endif // TIME_SERVICE_ENABLE
68 #endif
69