projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | // Boost.Geometry Index |
| 2 | // | |
| 3 | // R-tree subtree scoped destroyer | |
| 4 | // | |
| 5 | // Copyright (c) 2011-2015 Adam Wulkiewicz, Lodz, Poland. | |
| 6 | // | |
| 7 | // Use, modification and distribution is subject to the Boost Software License, | |
| 8 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
| 9 | // http://www.boost.org/LICENSE_1_0.txt) | |
| 10 | ||
| 11 | #ifndef BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_SUBTREE_DESTROYED_HPP | |
| 12 | #define BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_SUBTREE_DESTROYED_HPP | |
| 13 | ||
| 14 | #include <boost/geometry/index/detail/rtree/visitors/destroy.hpp> | |
| 15 | ||
| 16 | namespace boost { namespace geometry { namespace index { | |
| 17 | ||
| 18 | namespace detail { namespace rtree { | |
| 19 | ||
| 20 | template <typename Value, typename Options, typename Translator, typename Box, typename Allocators> | |
| 21 | class subtree_destroyer | |
| 22 | { | |
| 23 | typedef typename rtree::node<Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type node; | |
| 24 | typedef typename Allocators::node_pointer pointer; | |
| 25 | ||
| 26 | subtree_destroyer(subtree_destroyer const&); | |
| 27 | subtree_destroyer & operator=(subtree_destroyer const&); | |
| 28 | ||
| 29 | public: | |
| 30 | subtree_destroyer(pointer ptr, Allocators & allocators) | |
| 31 | : m_ptr(ptr) | |
| 32 | , m_allocators(allocators) | |
| 33 | {} | |
| 34 | ||
| 35 | ~subtree_destroyer() | |
| 36 | { | |
| 37 | reset(); | |
| 38 | } | |
| 39 | ||
| 40 | void reset(pointer ptr = 0) | |
| 41 | { | |
| 42 | if ( m_ptr && m_ptr != ptr ) | |
| 43 | { | |
| 44 | detail::rtree::visitors::destroy<Value, Options, Translator, Box, Allocators> del_v(m_ptr, m_allocators); | |
| 45 | detail::rtree::apply_visitor(del_v, *m_ptr); | |
| 46 | } | |
| 47 | m_ptr = ptr; | |
| 48 | } | |
| 49 | ||
| 50 | void release() | |
| 51 | { | |
| 52 | m_ptr = 0; | |
| 53 | } | |
| 54 | ||
| 55 | pointer get() const | |
| 56 | { | |
| 57 | return m_ptr; | |
| 58 | } | |
| 59 | ||
| 60 | node & operator*() const | |
| 61 | { | |
| 62 | return *m_ptr; | |
| 63 | } | |
| 64 | ||
| 65 | pointer operator->() const | |
| 66 | { | |
| 67 | return m_ptr; | |
| 68 | } | |
| 69 | ||
| 70 | private: | |
| 71 | pointer m_ptr; | |
| 72 | Allocators & m_allocators; | |
| 73 | }; | |
| 74 | ||
| 75 | }} // namespace detail::rtree | |
| 76 | ||
| 77 | }}} // namespace boost::geometry::index | |
| 78 | ||
| 79 | #endif // BOOST_GEOMETRY_INDEX_DETAIL_RTREE_NODE_SUBTREE_DESTROYED_HPP |