tdlib-fork/tdutils/td/utils/port/Clocks.cpp

//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/utils/port/Clocks.h"

#include <chrono>

namespace td {

double Clocks::monotonic() {
  // TODO write system specific functions, because std::chrono::steady_clock is steady only under Windows
  auto duration = std::chrono::steady_clock::now().time_since_epoch();
  return static_cast<double>(std::chrono::duration_cast<std::chrono::nanoseconds>(duration).count()) * 1e-9;
}

double Clocks::system() {
  auto duration = std::chrono::system_clock::now().time_since_epoch();
  return static_cast<double>(std::chrono::duration_cast<std::chrono::nanoseconds>(duration).count()) * 1e-9;
}

}  // namespace td