| 12345678910111213141516171819202122232425262728293031 | // Copyright 2018 The Abseil Authors.//// Licensed under the Apache License, Version 2.0 (the "License");// you may not use this file except in compliance with the License.// You may obtain a copy of the License at////      https://www.apache.org/licenses/LICENSE-2.0//// Unless required by applicable law or agreed to in writing, software// distributed under the License is distributed on an "AS IS" BASIS,// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.// See the License for the specific language governing permissions and// limitations under the License.#include <chrono>#include <cstdint>namespace absl {ABSL_NAMESPACE_BEGINnamespace time_internal {static int64_t GetCurrentTimeNanosFromSystem() {  return std::chrono::duration_cast<std::chrono::nanoseconds>(             std::chrono::system_clock::now() -             std::chrono::system_clock::from_time_t(0))      .count();}}  // namespace time_internalABSL_NAMESPACE_END}  // namespace absl
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