miniprofiler

miniprof.hpp

#pragma once

#include <chrono>
#include <string>

#include <boost/log/core.hpp>
#include <boost/log/trivial.hpp>

namespace blg = boost::log::trivial;

namespace ch = std::chrono;

class MiniProf {
  ch::steady_clock::time_point _start;
  ch::steady_clock::time_point _end;
  const std::string _name;

public:
  MiniProf(std::string name) : _name(name){};

  void start() { _start = ch::steady_clock::now(); }
  void stop() { _end = ch::steady_clock::now(); }

  void log() {
    auto num_us = ch::duration_cast<ch::microseconds>(_end - _start).count();
    BOOST_LOG_TRIVIAL(info) << "Duration '" << _name << "': " << (num_us / 1000)
                            << "." << (num_us % 1000) << "ms";
  }
};