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#include "hidebug_util.h" 17 18#include <ctime> 19#include <thread> 20 21namespace OHOS { 22namespace HiviewDFX { 23int64_t GetElapsedNanoSecondsSinceBoot() 24{ 25 struct timespec times = {0, 0}; 26 clock_gettime(CLOCK_BOOTTIME, ×); 27 constexpr static int secondToNanosecond = 1 * 1000 * 1000 * 1000; 28 return times.tv_sec * secondToNanosecond + times.tv_nsec; 29} 30 31int64_t GetNanoSecondsTimestamp() 32{ 33 struct timespec times = {0, 0}; 34 clock_gettime(CLOCK_REALTIME, ×); 35 constexpr static int secondToNanosecond = 1 * 1000 * 1000 * 1000; 36 return times.tv_sec * secondToNanosecond + times.tv_nsec; 37} 38} 39}