include/wipal/wifi/stats/delimiter_frames.hxx

/*
 * WiPal - A library and a set of tools to manipulate wireless traces.
 * Copyright (C) 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 WIFI_STATS_DELIMITER_FRAMES_HXX_
# define WIFI_STATS_DELIMITER_FRAMES_HXX_

# include <boost/date_time/posix_time/posix_time_duration.hpp>
# include <boost/date_time/posix_time/ptime.hpp>
# include <boost/date_time/posix_time/time_formatters.hpp>

# include <wipal/wifi/stats/delimiter_frames.hh>

namespace wpl
{

  namespace wifi
  {

    namespace stats
    {

      inline
      delimiter_frames::delimiter_frames(const void*)
      {
      }

      template <class Frame>
      void
      delimiter_frames::
      account_frame(const Frame&                frame,
                    const size_t&               ,
                    const type::frame_type&     ,
                    const unsigned&             ,
                    const bool&                 ,
                    const addr* const&          ,
                    const addr* const&          ,
                    const bool&                 )
      {
        const tool::microseconds&       phy_stamp = frame.microseconds();
        const struct timeval&           meta_stamp = frame.meta().ts;

        if (not earliest_ or earliest_->first > phy_stamp)
          earliest_ = stamp_pair (phy_stamp, meta_stamp);

        if (not latest_ or latest_->first < phy_stamp)
          latest_ = stamp_pair (phy_stamp, meta_stamp);
      }

      inline
      std::ostream&
      delimiter_frames::print(std::ostream& o) const
      {
        print(o, "earliest frame TOA", earliest_, false);
        print(o, "latest frame TOA", latest_, false);
        print(o, "smallest timestamp", earliest_, true);
        print(o, "greatest timestamp", latest_, true);
        return o << std::flush;
      }

      inline
      void
      delimiter_frames::restart()
      {
        earliest_ = latest_ = boost::none_t ();
      }

      std::ostream&
      delimiter_frames::print(std::ostream&                     o,
                              const std::string&                name,
                              const optional_stamp_pair&        value,
                              const bool                        phy)
      {
        o << name << ": ";
        if (not value)
          o << "NA";
        else
          if (phy)
            o << value->first;
          else
            {
              using namespace boost::gregorian;
              using namespace boost::posix_time;

              const ptime       t (date(1970, Jan, 01),
                                   seconds (value->second.tv_sec) +
                                   microseconds (value->second.tv_usec));

              o << to_simple_string(t) << " UTC";
            }
        return o << '\n';
      }

    } // End of namespace wpl::wifi::stats.

  } // End of namespace wpl::wifi.

} // End of namespace wpl.

#endif // ! WIFI_STATS_DELIMITER_FRAMES_HXX_

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