/*
 * This file is part of OpenModelica.
 *
 * Copyright (c) 1998-2026, Open Source Modelica Consortium (OSMC),
 * c/o Linköpings universitet, Department of Computer and Information Science,
 * SE-58183 Linköping, Sweden.
 *
 * All rights reserved.
 *
 * THIS PROGRAM IS PROVIDED UNDER THE TERMS OF AGPL VERSION 3 LICENSE OR
 * THIS OSMC PUBLIC LICENSE (OSMC-PL) VERSION 1.8.
 * ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS PROGRAM CONSTITUTES
 * RECIPIENT'S ACCEPTANCE OF THE OSMC PUBLIC LICENSE OR THE GNU AGPL
 * VERSION 3, ACCORDING TO RECIPIENTS CHOICE.
 *
 * The OpenModelica software and the OSMC (Open Source Modelica Consortium)
 * Public License (OSMC-PL) are obtained from OSMC, either from the above
 * address, from the URLs:
 * http://www.openmodelica.org or
 * https://github.com/OpenModelica/ or
 * http://www.ida.liu.se/projects/OpenModelica,
 * and in the OpenModelica distribution.
 *
 * GNU AGPL version 3 is obtained from:
 * https://www.gnu.org/licenses/licenses.html#GPL
 *
 * This program is distributed WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE, EXCEPT AS EXPRESSLY SET FORTH
 * IN THE BY RECIPIENT SELECTED SUBSIDIARY LICENSE CONDITIONS OF OSMC-PL.
 *
 * See the full OSMC Public License conditions for more details.
 *
 */

#include "Clock.h"
#include "Logging.h"

#include <ctime>
#include <chrono>

Clock::Clock()
{
  reset();
}

Clock::~Clock()
{
}

void Clock::tic()
{
  if (active)
    return;

  active = true;
  //startCPUTime = std::clock();
  startWallTime = std::chrono::system_clock::now();
}

void Clock::toc()
{
  if (!active)
  {
    logWarning("Clock::toc has been called for inactive clock.");
    return;
  }

  //double cpuTimeDuration = (std::clock() - startCPUTime) / (double)CLOCKS_PER_SEC;
  //elapsedCPUTime += cpuTimeDuration;

  std::chrono::duration<double> wallTimeDuration = (std::chrono::system_clock::now() - startWallTime);
  elapsedWallTime += wallTimeDuration.count();

  active = false;
}

void Clock::reset()
{
  active = false;
  elapsedCPUTime = 0.0;
  elapsedWallTime = 0.0;
}

double& Clock::getElapsedCPUTime()
{
  if (active)
  {
    toc();
    tic();
  }

  return elapsedCPUTime;
}

double& Clock::getElapsedWallTime()
{
  if (active)
  {
    toc();
    tic();
  }

  return elapsedWallTime;
}
