Chris@16: //////////////////////////////////////////////////////////////////////////////
Chris@16: //
Chris@16: // (C) Copyright Ion Gaztanaga 2005-2012. Distributed under the Boost
Chris@16: // Software License, Version 1.0. (See accompanying file
Chris@16: // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/interprocess for documentation.
Chris@16: //
Chris@16: //////////////////////////////////////////////////////////////////////////////
Chris@16: #ifndef BOOST_INTERPROCESS_FLAT_MAP_INDEX_HPP
Chris@16: #define BOOST_INTERPROCESS_FLAT_MAP_INDEX_HPP
Chris@16: 
Chris@101: #ifndef BOOST_CONFIG_HPP
Chris@101: #  include <boost/config.hpp>
Chris@101: #endif
Chris@101: #
Chris@101: #if defined(BOOST_HAS_PRAGMA_ONCE)
Chris@101: #  pragma once
Chris@101: #endif
Chris@101: 
Chris@16: #include <boost/interprocess/detail/config_begin.hpp>
Chris@16: #include <boost/interprocess/detail/workaround.hpp>
Chris@16: 
Chris@101: // interprocess
Chris@16: #include <boost/interprocess/containers/flat_map.hpp>
Chris@16: #include <boost/interprocess/allocators/allocator.hpp>
Chris@101: // intrusive/detail
Chris@101: #include <boost/intrusive/detail/minimal_pair_header.hpp>         //std::pair
Chris@101: #include <boost/intrusive/detail/minimal_less_equal_header.hpp>   //std::less
Chris@101: 
Chris@16: 
Chris@16: //!\file
Chris@16: //!Describes index adaptor of boost::map container, to use it
Chris@16: //!as name/shared memory index
Chris@16: 
Chris@16: //[flat_map_index
Chris@16: namespace boost { namespace interprocess {
Chris@16: 
Chris@101: #ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
Chris@101: 
Chris@16: //!Helper class to define typedefs from IndexTraits
Chris@16: template <class MapConfig>
Chris@16: struct flat_map_index_aux
Chris@16: {
Chris@16:    typedef typename MapConfig::key_type            key_type;
Chris@16:    typedef typename MapConfig::mapped_type         mapped_type;
Chris@16:    typedef typename MapConfig::
Chris@16:       segment_manager_base                   segment_manager_base;
Chris@16:    typedef std::less<key_type>                     key_less;
Chris@16:    typedef std::pair<key_type, mapped_type>        value_type;
Chris@16:    typedef allocator<value_type
Chris@16:                     ,segment_manager_base>   allocator_type;
Chris@16:    typedef flat_map<key_type,  mapped_type,
Chris@16:                     key_less, allocator_type>      index_t;
Chris@16: };
Chris@16: 
Chris@101: #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
Chris@101: 
Chris@16: //!Index type based in flat_map. Just derives from flat_map and
Chris@16: //!defines the interface needed by managed memory segments.
Chris@16: template <class MapConfig>
Chris@16: class flat_map_index
Chris@16:    //Derive class from flat_map specialization
Chris@16:    : public flat_map_index_aux<MapConfig>::index_t
Chris@16: {
Chris@101:    #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
Chris@16:    typedef flat_map_index_aux<MapConfig>  index_aux;
Chris@16:    typedef typename index_aux::index_t    base_type;
Chris@16:    typedef typename index_aux::
Chris@16:       segment_manager_base          segment_manager_base;
Chris@101:    #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
Chris@16: 
Chris@16:    public:
Chris@16:    //!Constructor. Takes a pointer to the segment manager. Can throw
Chris@16:    flat_map_index(segment_manager_base *segment_mngr)
Chris@16:       : base_type(typename index_aux::key_less(),
Chris@16:                   typename index_aux::allocator_type(segment_mngr))
Chris@16:    {}
Chris@16: 
Chris@16:    //!This reserves memory to optimize the insertion of n elements in the index
Chris@16:    void reserve(typename segment_manager_base::size_type n)
Chris@16:    {  base_type::reserve(n);  }
Chris@16: 
Chris@16:    //!This frees all unnecessary memory
Chris@16:    void shrink_to_fit()
Chris@16:    {  base_type::shrink_to_fit();   }
Chris@16: };
Chris@16: 
Chris@16: }}   //namespace boost { namespace interprocess
Chris@16: //]
Chris@16: #include <boost/interprocess/detail/config_end.hpp>
Chris@16: 
Chris@16: #endif   //#ifndef BOOST_INTERPROCESS_FLAT_MAP_INDEX_HPP