tictoc.cc

// -*- mode: c++; fill-column: 80; c-basic-offset: 2; indent-tabs-mode: nil -*-
/*
    Copyright (c) 2010 Juan Jose Garcia Ripoll

    Tensor is free software; you can redistribute it and/or modify it
    under the terms of the GNU Library General Public License as published
    by the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Library General Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include <tensor/config.h>
#include <ctime>
#ifdef HAVE_GETTIMEOFDAY
#include <sys/time.h>
#endif
#include <tensor/tools.h>

namespace tensor {

#if defined(HAVE_GETTIMEOFDAY)

  struct timeval tic_start;

  void tic()
  {
    gettimeofday(&tic_start, NULL);
  }

  double toc()
  {
    struct timeval tic_now;
    gettimeofday(&tic_now, NULL);
    double seconds = tic_now.tv_sec - tic_start.tv_sec;
    double museconds = tic_now.tv_usec - tic_start.tv_usec;
    return seconds + 1e-6 * museconds;
  }

#endif

#if !defined(HAVE_GETTIMEOFDAY)

  static clock_t tic_start;

  void tic()
  {
    tic_start = clock();
  }

  double toc()
  {
    return (clock()-tic_start)/((double)CLOCKS_PER_SEC);
  }

#endif

}