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Class template map_index

boost::interprocess::map_index

Synopsis

// In header: <boost/interprocess/indexes/map_index.hpp>

template<typename MapConfig> 
class map_index : public boost::container::map< key_type, mapped_type, key_less, allocator_type >
{
public:

  // public member functions
  map_index(segment_manager_base *);
  void reserve(typename segment_manager_base::size_type);
  void shrink_to_fit();
};

Description

Index type based in boost::interprocess::map. Just derives from boost::interprocess::map and defines the interface needed by managed memory segments

map_index public member functions

  1. map_index(segment_manager_base * segment_mngr);

    Constructor. Takes a pointer to the segment manager. Can throw

  2. void reserve(typename segment_manager_base::size_type);

    This reserves memory to optimize the insertion of n elements in the index

  3. void shrink_to_fit();

    This tries to free previously allocate unused memory.


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