include/wipal/phy/empty.hh

/*
 * 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 PHY_EMPTY_HH_
# define PHY_EMPTY_HH_

# include <wipal/phy/phy.hh>

namespace wpl
{

  // Forward declarations.
  namespace phy
  {
    template <class B>  struct empty_time;
    template <class B>  struct empty_header;
  }

  // Virtual types.
  namespace tool
  {

    template <class B>
    struct types< phy::empty_time<B> >
    {
      struct impl_type {};
    };

    template <class B>
    struct types< phy::empty_header<B> >
    {
      typedef phy::empty_time<bottom>   time_type;
    };

  } // End of namespace wpl::tool.

  // Core declarations.
  namespace phy
  {

    /*----------------.
    | phy::empty_time |
    `----------------*/

    template <class Bottom = tool::bottom>
    struct empty_time: WP_INHERIT(public time, empty_time<Bottom>)
    {
      typedef WP_GET_EXACT(Bottom, empty_time<Bottom>)  exact_type;
      typedef WP_TYPE(impl_type, exact_type)            impl_type;

      impl_type get_impl() const;
      exact_type&       increment(tool::microseconds microseconds);
    };


    /*------------------.
    | phy::empty_header |
    `------------------*/

    template <class Bottom = tool::bottom>
    struct empty_header: WP_INHERIT(public header, empty_header<Bottom>)
    {
      typedef WP_GET_EXACT(Bottom, empty_header<Bottom>)        exact_type;
      typedef WP_TYPE(time_type, exact_type)                    time_type;

      size_t    len_impl(size_t, bool) const;
      time_type time_get_impl(bool) const;
      void      time_set_impl(const time_type&, bool);

      template <class S1, class S2>
      static bool
      eq_time(const pkt::packet<S1>&            lhs,
              const pkt::packet<S2>&            rhs,
              const unsigned                    prec,
              const tool::end::endianness       phy_end);
    };

  } // End of namespace wpl::phy.

} // End of namespace wpl.

# include "empty.hxx"

#endif // ! PHY_EMPTY_HH_

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