include/wipal/wifi/mactime_tracker.hxx

00001 /*
00002  * WiPal - A library and a set of tools to manipulate wireless traces.
00003  * Copyright (C) 2007  Universite Pierre et Marie Curie - Paris 6
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License as published by
00007  * the Free Software Foundation; either version 2 of the License, or
00008  * (at your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  * GNU General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU General Public License
00016  * along with this program; if not, write to the Free Software
00017  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
00018  * MA  02110-1301  USA
00019  *
00020  * Author: Thomas Claveirole <thomas.claveirole@lip6.fr>
00021  */
00022 #ifndef WIFI_MACTIME_TRACKER_HXX_
00023 # define WIFI_MACTIME_TRACKER_HXX_
00024 
00025 # include "mactime_tracker.hh"
00026 
00027 namespace wifi
00028 {
00029 
00030   template <class Bottom>
00031   mactime_tracker<Bottom>::mactime_tracker():
00032     mactime_ (0),
00033     wrap_count_ (0)
00034   {
00035   }
00036 
00037   template <class Bottom>
00038   mactime_tracker<Bottom>::mactime_tracker(const mactime_type& mactime_start):
00039     mactime_ (mactime_start),
00040     wrap_count_ (0)
00041   {
00042   }
00043 
00044   template <class Bottom>
00045   void
00046   mactime_tracker<Bottom>::tick(const mactime_type& m)
00047   {
00048     if (m < mactime_)
00049       ++wrap_count_;
00050     mactime_ = m;
00051   }
00052 
00053   template <class Bottom>
00054   void
00055   mactime_tracker<Bottom>::tick(const prism::header*    header,
00056                                 size_t                  caplen,
00057                                 bool                    swapped)
00058   {
00059     if (caplen < sizeof (prism::header))
00060       return;
00061 
00062     this->exact().tick(header->mactime.get(swapped));
00063   }
00064 
00065   template <class Bottom>
00066   tool::microseconds
00067   mactime_tracker<Bottom>::microseconds() const
00068   {
00069     return tool::microseconds(wrap_count_, mactime_);
00070   }
00071 
00072   template <class Bottom>
00073   const typename mactime_tracker<Bottom>::mactime_type&
00074   mactime_tracker<Bottom>::mactime() const
00075   {
00076     return mactime_;
00077   }
00078 
00079 } // End of namespace wifi.
00080 
00081 #endif // ! WIFI_MACTIME_TRACKER_HXX_

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