1 /* 2 * Copyright (C) 2017 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 #include <stdint.h> 18 19 #include <chrono> 20 21 #include "NanoTime.h" 22 23 namespace android { 24 namespace gtest_extras { 25 26 uint64_t NanoTime() { 27 std::chrono::nanoseconds duration(std::chrono::steady_clock::now().time_since_epoch()); 28 return static_cast<uint64_t>(duration.count()); 29 } 30 31 } // namespace gtest_extras 32 } // namespace android 33