include/wipal/filter/non_noisy_prism.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 FILTER_NON_NOISY_PRISM_HH_
# define FILTER_NON_NOISY_PRISM_HH_

# include <wipal/tool/iterator.hh>
# include <wipal/tool/iterable.hh>

/*---------------------.
| Forward declarations |
`---------------------*/

namespace wpl
{
  namespace filter
  {
    namespace internals
    {
      template <class, class, class>
      struct non_noisy_prism_iterator;
    }

    template <class, class>
    struct non_noisy_prism;
  }
}


/*--------------.
| Virtual types |
`--------------*/

namespace wpl
{
  namespace tool
  {

    template <class I, class B1, class B2>
    struct types< wpl::filter::internals::non_noisy_prism_iterator<I, B1, B2> >
    {
      typedef wpl::filter::non_noisy_prism<I, B1>       iterable_type;
      typedef typename I::value_type                    value_type;
    };

    template <class I, class B>
    struct types< wpl::filter::non_noisy_prism<I, B> >
    {
      typedef
      wpl::filter::internals::non_noisy_prism_iterator<I, B, bottom>
      iterator;
    };

  } // End of namespace wpl::tool.
} // End of namespace wpl.


/*-------------.
| Declarations |
`-------------*/

namespace wpl
{

  namespace filter
  {

    namespace internals
    {

      template <class I, class B, class Bottom>
      struct non_noisy_prism_iterator:
        WP_INHERIT(public tool::iterator,
                   non_noisy_prism_iterator<I, B, Bottom>)
      {


        typedef WP_GET_EXACT(Bottom, non_noisy_prism_iterator<I, B, Bottom>)
          exact_type;
        typedef tool::iterator<exact_type>              super_type;
        typedef WP_TYPE(value_type, exact_type) value_type;
        typedef WP_TYPE(iterable_type, exact_type)      iterable_type;

        non_noisy_prism_iterator(const iterable_type& i, bool end);


        bool            equal(const non_noisy_prism_iterator& rhs) const;
        void            increment();

        const value_type&       get() const;
        value_type&             get();

        const value_type*       get_ptr() const;
        value_type*             get_ptr();

      private:
        static bool             noisy(const void* frame, size_t caplen);

        void                    skip_noisy();

        const iterable_type*    iterable_;
        I                       current_;
      };

    } // End of namespace wpl::filter::internals.


    template <class InputIterator, class Bottom = tool::bottom>
    struct non_noisy_prism: WP_INHERIT(public tool::iterable,
                                       non_noisy_prism<InputIterator, Bottom>)
    {
      non_noisy_prism(const InputIterator& begin, const InputIterator& end);

      template <class Iterable>
        non_noisy_prism(const Iterable& i);

    private:
      InputIterator             begin_;
      InputIterator             end_;

      friend class internals::non_noisy_prism_iterator<InputIterator,
        Bottom, tool::bottom>;
    };

  } // End of namespace wpl::filter.

} // End of namespace wpl.

# include "non_noisy_prism.hxx"

#endif // ! FILTER_NON_NOISY_PRISM_HH_

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