1 /* 2 * Copyright (c) 2024-2024 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 #ifndef POWER_TIME_H 17 #define POWER_TIME_H 18 19 namespace OHOS { 20 namespace PowerMgr { 21 using namespace std::chrono; 22 constexpr int32_t MS_TO_S = 1000; 23 constexpr int32_t NS_TO_MS = 1000000; 24 GetCurrentRealTimeMs()25static int64_t GetCurrentRealTimeMs() 26 { 27 struct timespec ts = { 0, 0}; 28 if (clock_gettime(CLOCK_REALTIME, &ts) != 0) { 29 return 0; 30 } 31 return (ts.tv_sec * MS_TO_S + ts.tv_nsec / NS_TO_MS); 32 } 33 34 } 35 } 36 #endif