precision-tracking/src/high_res_timer.cpp at master · GeoffGao/precision-tracking · GitHub

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/*
 * high_res_timer.cpp
 *
 *      Author: Alex Teichman
 *
 */


#include <precision_tracking/high_res_timer.h>

namespace precision_tracking {

HighResTimer::HighResTimer(const std::string& description,
                           const clockid_t& clock)
  : description_(description),
    total_us_(0),
    clock_(clock)
{
}

void HighResTimer::start()
{
  clock_gettime(clock_, &start_);
}

void HighResTimer::stop()
{
  clock_gettime(clock_, &end_);
  total_us_ += 1e6 * (end_.tv_sec - start_.tv_sec) + 1e-3 * (end_.tv_nsec - start_.tv_nsec);
}

void HighResTimer::reset(const std::string& description)
{
  description_ = description;
  total_us_ = 0;
}

void HighResTimer::reset()
{
  total_us_ = 0;
}

double HighResTimer::getMicroseconds() const
{
  return total_us_;
}

double HighResTimer::getMilliseconds() const
{
  return getMicroseconds() / 1000.;
}

double HighResTimer::getSeconds() const
{
  return getMilliseconds() / 1000.;
}

double HighResTimer::getMinutes() const
{
  return getSeconds() / 60.;
}

double HighResTimer::getHours() const
{
  return getMinutes() / 60.;
}

std::string HighResTimer::reportMicroseconds() const
{
  std::ostringstream oss; oss << description_ << ": " << getMicroseconds() << " microseconds.";
  return oss.str();
}

std::string HighResTimer::reportMilliseconds() const
{
  std::ostringstream oss; oss << description_ << ": " << getMilliseconds() << " milliseconds.";
  return oss.str();
}

std::string HighResTimer::reportSeconds() const
{
  std::ostringstream oss; oss << description_ << ": " << getSeconds() << " seconds.";
  return oss.str();
}

std::string HighResTimer::reportMinutes() const
{
  std::ostringstream oss; oss << description_ << ": " << getMinutes() << " minutes.";
  return oss.str();
}

std::string HighResTimer::reportHours() const
{
  std::ostringstream oss; oss << description_ << ": " << getHours() << " hours.";
  return oss.str();
}

std::string HighResTimer::report() const
{
  double val = getMicroseconds();
  if(val <= 1000.0)
    return reportMicroseconds();

  val /= 1000.0;
  if(val <= 1000.0 && val >= 1.0)
    return reportMilliseconds();

  val /= 1000.0;
  if(val <= 60.0 && val >= 1.0)
    return reportSeconds();

  val /= 60.0;
  if(val <= 60.0 && val >= 1.0)
    return reportMinutes();

  val /= 60.0;
  return reportHours();
}

ScopedTimer::ScopedTimer(const std::string& description) :
  hrt_(description)
{
  hrt_.start();
}

ScopedTimer::~ScopedTimer()
{
  hrt_.stop();
  std::cout << hrt_.report() << std::endl;
}

} // namespace precision_tracking