include/wipal/tool/microseconds.hxx

/*
 * WiPal - A library and a set of tools to manipulate wireless traces.
 * Copyright (C) 2007, 2008, 2009  Universite Pierre et Marie Curie - Paris 6
 *
 * 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.
 *
 * 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 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
 *
 * Author: Thomas Claveirole <thomas.claveirole@lip6.fr>
 */
#ifndef TOOL_MICROSECONDS_HXX_
# define TOOL_MICROSECONDS_HXX_

# include <cassert>

# include <wipal/tool/gmp_64_wrapper.hh>

# include "microseconds.hh"

namespace wpl
{

  namespace tool
  {

    inline
    microseconds::microseconds(const uint64_t i):
      mpz_class (tool::mpz_of_uint64(i))
    {
    }

    inline
    microseconds::microseconds(const struct timeval& tv): mpz_class (tv.tv_sec)
    {
      *this *= 1000000;
      *this += tv.tv_usec;
    }

    inline
    microseconds::microseconds(const mpz_type& z): mpz_class (z)
    {
    }

    template <class T1, class T2>
    microseconds::microseconds(const __gmp_expr<T1, T2>& e): mpz_class (e)
    {
    }

    inline
    uint32_t
    microseconds::get_prism_mactime() const
    {
      return sgn(*this) < 0? -get_ui(): get_ui();
    }

    inline
    uint32_t
    microseconds::get_prism_hosttime() const
    {
      mpz_type  r = *this / 10;

      return sgn(r) < 0? -r.get_ui(): r.get_ui();
    }

    inline
    uint64_t
    microseconds::get_uint64() const
    {
      return tool::uint64_of_mpz(*this);
    }

    inline
    unsigned
    microseconds::get_div_by(unsigned d) const
    {
      assert(sgn(*this) >= 0);

      mpz_type  r = *this / d;

      assert(r.fits_uint_p());
      return r.get_ui();
    }

    inline
    struct timeval
    microseconds::get_timeval() const
    {
      struct timeval    r;
      mpz_type          q;

      r.tv_usec = mpz_fdiv_q_ui(q.get_mpz_t(), get_mpz_t(), 1000000);
      assert(q.fits_sint_p());
      r.tv_sec = q.get_si();

      return r;
    }

  } // End of namespace wpl::tool.

} // End of namespace wpl.

#endif // TOOL_MICROSECONDS_HXX_

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