1// Copyright 2018 The Abseil Authors. 2// 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// https://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#include <chrono> 16#include <cstdint> 17 18namespace absl { 19ABSL_NAMESPACE_BEGIN 20namespace time_internal { 21 22static int64_t GetCurrentTimeNanosFromSystem() { 23 return std::chrono::duration_cast<std::chrono::nanoseconds>( 24 std::chrono::system_clock::now() - 25 std::chrono::system_clock::from_time_t(0)) 26 .count(); 27} 28 29} // namespace time_internal 30ABSL_NAMESPACE_END 31} // namespace absl 32