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 #include "system_timer.h" 17 18 #include <atomic> 19 #include <sys/time.h> 20 21 #include "log_print.h" 22 #include "platform_specific.h" 23 24 namespace { 25 #ifdef RUNNING_ON_SIMULATED_ENV 26 const uint64_t MULTIPLES_BETWEEN_SECONDS_AND_MICROSECONDS = 1000000; 27 #endif 28 std::atomic<int64_t> g_timeOffset(0); 29 } 30 31 namespace DistributedDB { 32 namespace OS { 33 34 #ifdef RUNNING_ON_SIMULATED_ENV GetCurrentSysTimeInMicrosecond(uint64_t & outTime)35int GetCurrentSysTimeInMicrosecond(uint64_t &outTime) 36 { 37 struct timeval rawTime; 38 int errCode = gettimeofday(&rawTime, nullptr); 39 if (errCode < 0) { 40 LOGE("[GetSysTime] Fail:%d.", errCode); 41 return errCode; 42 } 43 outTime = static_cast<uint64_t>(rawTime.tv_sec) * MULTIPLES_BETWEEN_SECONDS_AND_MICROSECONDS + 44 static_cast<uint64_t>(rawTime.tv_usec); 45 outTime = outTime + g_timeOffset.load(); 46 return 0; 47 } 48 #endif // RUNNING_ON_SIMULATED_ENV 49 SetOffsetBySecond(int64_t inSecond)50void SetOffsetBySecond(int64_t inSecond) 51 { 52 int64_t microSecond = static_cast<int64_t>(inSecond) * 1000 * 1000; // to ms 53 g_timeOffset.store(microSecond); 54 LOGD("[SetTimeOffset] offset : %llds", inSecond); 55 } 56 } 57 }