Timer.h

// Copyright (C) 2008 Anders Logg, 2015 Jan Blechta
//
// This file is part of DOLFINx (https://www.fenicsproject.org)
//
// SPDX-License-Identifier:    LGPL-3.0-or-later
 
#pragma once
 
#include <array>
#include <boost/timer/timer.hpp>
#include <optional>
#include <string>
 
namespace dolfinx::common
{
 
 
class Timer
{
public:
  Timer(std::optional<std::string> task = std::nullopt);
 
  ~Timer();
 
  void start();
 
  void resume();
 
  double stop();
 
  std::array<double, 3> elapsed() const;
 
private:
  // Name of task
  std::optional<std::string> _task;
 
  // Implementation of timer
  boost::timer::cpu_timer _timer;
};
} // namespace dolfinx::common