bencher.hxx

// bencher.hxx: this file is part of the Vaucanson project.
//
// Vaucanson, a generic library for finite state machines.
//
// Copyright (C) 2004, 2005, 2007 The Vaucanson Group.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// The complete GNU General Public Licence Notice can be found as the
// `COPYING' file in the root directory.
//
// The Vaucanson Group consists of people listed in the `AUTHORS' file.
//
#ifndef VCSN_TOOLS_BENCHER_HXX
# define VCSN_TOOLS_BENCHER_HXX

# include <vaucanson/tools/bencher.hh>

# ifdef VCSN_BENCH

namespace vcsn
{
  namespace tools
  {

    bencher::bencher() : start_(0), stop_(0)
    {}

    bencher::~bencher()
    {}

    void bencher::start()
    {
      start_ = dtime();
    }


    void bencher::stop()
    {
      stop_ = dtime();
    }


    double bencher::get_time()
    {
      return stop_ - start_;
    }

    double bencher::dtime()
    {
      rusage rusage;
      getrusage(RUSAGE_SELF, &rusage);
      return ((double)(rusage.ru_utime.tv_sec)
          + (double)(rusage.ru_utime.tv_usec) * 1.0e-06);
    }

  }
}
# endif // ! VCSN_BENCH
#endif // ! VCSN_TOOLS_BENCHER_HXX

---