include/wipal/wifi/time_converter.hh

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_TIME_CONVERTER_HH_
00023 # define WIFI_TIME_CONVERTER_HH_
00024 
00025 extern "C"
00026 {
00027 # include <inttypes.h>
00028 }
00029 
00030 # include <wipal/tool/static_base.hh>
00031 # include <wipal/tool/microseconds.hh>
00032 
00033 namespace wifi
00034 {
00035 
00051   template <class Bottom = tool::bottom>
00052   struct time_converter: wp_inherit(public tool::static_base,
00053                                     time_converter<Bottom>)
00054   {
00056 
00057     typedef wp_get_exact(Bottom, time_converter<Bottom>)        exact_type;
00058     typedef tool::static_base<exact_type>                       super_type;
00060 
00062     typedef struct timeval      pcaptime_type;
00063 
00065     typedef uint32_t            hosttime_type;
00066 
00068     typedef uint32_t            mactime_type;
00069 
00070 
00072     time_converter(const pcaptime_type&         local_pcaptime,
00073                    const hosttime_type&         local_hosttime,
00074                    const mactime_type&          local_mactime,
00075                    const tool::microseconds&    global_time);
00076 
00078     struct time_values
00079     {
00081       time_values();
00082 
00084       time_values(const pcaptime_type&  pcaptime,
00085                   const hosttime_type&  hosttime,
00086                   const mactime_type&   mactime);
00087 
00089       pcaptime_type     pcaptime;
00090 
00092       hosttime_type     hosttime;
00093 
00095       mactime_type      mactime;
00096     };
00097 
00099     time_values operator () (const tool::microseconds& global_time) const;
00100 
00101   private:
00102     time_values         local_reference_;
00103     tool::microseconds  global_reference_;
00104   };
00105 
00106 } // End of namespace wifi.
00107 
00108 # include "time_converter.hxx"
00109 
00110 #endif // ! WIFI_TIME_CONVERTER_HH_

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