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- // Boost.Geometry Index
- //
- // R-tree subtree scoped destroyer
- //
- // Copyright (c) 2011-2015 Adam Wulkiewicz, Lodz, Poland.
- //
- // Use, modification and distribution is subject to the Boost Software License,
- // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- #ifndef BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_SUBTREE_DESTROYED_HPP
- #define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_SUBTREE_DESTROYED_HPP
- #include <boost/geometry/index/detail/rtree/visitors/destroy.hpp>
- namespace boost { namespace geometry { namespace index {
- namespace detail { namespace rtree {
- template <typename Value, typename Options, typename Translator, typename Box, typename Allocators>
- class subtree_destroyer
- {
- typedef typename rtree::node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type node;
- typedef typename Allocators::node_pointer pointer;
- subtree_destroyer(subtree_destroyer const&);
- subtree_destroyer & operator=(subtree_destroyer const&);
- public:
- subtree_destroyer(pointer ptr, Allocators & allocators)
- : m_ptr(ptr)
- , m_allocators(allocators)
- {}
- ~subtree_destroyer()
- {
- reset();
- }
- void reset(pointer ptr = 0)
- {
- if ( m_ptr && m_ptr != ptr )
- {
- detail::rtree::visitors::destroy<Value, Options, Translator, Box, Allocators> del_v(m_ptr, m_allocators);
- detail::rtree::apply_visitor(del_v, *m_ptr);
- }
- m_ptr = ptr;
- }
- void release()
- {
- m_ptr = 0;
- }
- pointer get() const
- {
- return m_ptr;
- }
- node & operator*() const
- {
- return *m_ptr;
- }
- pointer operator->() const
- {
- return m_ptr;
- }
- private:
- pointer m_ptr;
- Allocators & m_allocators;
- };
- }} // namespace detail::rtree
- }}} // namespace boost::geometry::index
- #endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_SUBTREE_DESTROYED_HPP
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