get_current_time_chrono.inc (1007B)
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 18 namespace absl { 19 ABSL_NAMESPACE_BEGIN 20 namespace time_internal { 21 22 static 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 30 ABSL_NAMESPACE_END 31 } // namespace absl