1 /* 2 * Copyright (C) 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define ATRACE_TAG (ATRACE_TAG_POWER | ATRACE_TAG_HAL) 18 19 #include "TimeSource.h" 20 21 #include <utils/Trace.h> 22 23 namespace aidl { 24 namespace google { 25 namespace hardware { 26 namespace power { 27 namespace impl { 28 namespace pixel { 29 GetTime() const30std::chrono::nanoseconds TimeSource::GetTime() const { 31 ATRACE_CALL(); 32 return std::chrono::duration_cast<std::chrono::nanoseconds>( 33 std::chrono::system_clock::now().time_since_epoch()); 34 } 35 GetKernelTime() const36std::chrono::nanoseconds TimeSource::GetKernelTime() const { 37 ATRACE_CALL(); 38 timespec ts; 39 clock_gettime(CLOCK_MONOTONIC, &ts); 40 return std::chrono::nanoseconds(ts.tv_sec * 1000000000UL + ts.tv_nsec); 41 } 42 43 } // namespace pixel 44 } // namespace impl 45 } // namespace power 46 } // namespace hardware 47 } // namespace google 48 } // namespace aidl 49