projects / ceph.git / blame
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| 7c673cae FG |
1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // | |
| 3 | // (C) Copyright Ion Gaztanaga 2014-2014 | |
| 4 | // | |
| 5 | // Distributed under the Boost Software License, Version 1.0. | |
| 6 | // (See accompanying file LICENSE_1_0.txt or copy at | |
| 7 | // http://www.boost.org/LICENSE_1_0.txt) | |
| 8 | // | |
| 9 | // See http://www.boost.org/libs/intrusive for documentation. | |
| 10 | // | |
| 11 | ///////////////////////////////////////////////////////////////////////////// | |
| 12 | ||
| 13 | #ifndef BOOST_INTRUSIVE_DETAIL_NODE_CLONER_DISPOSER_HPP | |
| 14 | #define BOOST_INTRUSIVE_DETAIL_NODE_CLONER_DISPOSER_HPP | |
| 15 | ||
| 16 | #ifndef BOOST_CONFIG_HPP | |
| 17 | # include <boost/config.hpp> | |
| 18 | #endif | |
| 19 | ||
| 20 | #if defined(BOOST_HAS_PRAGMA_ONCE) | |
| 21 | # pragma once | |
| 22 | #endif | |
| 23 | ||
| 24 | #include <boost/intrusive/link_mode.hpp> | |
| 25 | #include <boost/intrusive/detail/mpl.hpp> | |
| 26 | #include <boost/intrusive/detail/ebo_functor_holder.hpp> | |
| 27 | #include <boost/intrusive/detail/algo_type.hpp> | |
| 28 | #include <boost/intrusive/detail/assert.hpp> | |
| 29 | ||
| 30 | namespace boost { | |
| 31 | namespace intrusive { | |
| 32 | namespace detail { | |
| 33 | ||
| 34 | template<class F, class ValueTraits, algo_types AlgoType, bool IsConst = true> | |
| 35 | struct node_cloner | |
| 36 | //Use public inheritance to avoid MSVC bugs with closures | |
| 37 | : public ebo_functor_holder<F> | |
| 38 | { | |
| 39 | typedef ValueTraits value_traits; | |
| 40 | typedef typename value_traits::node_traits node_traits; | |
| 41 | typedef typename node_traits::node_ptr node_ptr; | |
| 42 | typedef ebo_functor_holder<F> base_t; | |
| 43 | typedef typename get_algo< AlgoType | |
| 44 | , node_traits>::type node_algorithms; | |
| 45 | static const bool safemode_or_autounlink = | |
| 46 | is_safe_autounlink<value_traits::link_mode>::value; | |
| 47 | typedef typename value_traits::value_type value_type; | |
| 48 | typedef typename value_traits::pointer pointer; | |
| 49 | typedef typename value_traits::const_pointer const_pointer; | |
| 50 | typedef typename node_traits::node node; | |
| 51 | typedef typename value_traits::const_node_ptr const_node_ptr; | |
| 52 | typedef typename pointer_traits<pointer>::reference reference; | |
| 53 | typedef typename pointer_traits | |
| 54 | <const_pointer>::reference const_reference; | |
| 55 | typedef typename if_c<IsConst, const_reference, reference>::type reference_type; | |
| 56 | ||
| 57 | node_cloner(F f, const ValueTraits *traits) | |
| 58 | : base_t(f), traits_(traits) | |
| 59 | {} | |
| 60 | ||
| 61 | // tree-based containers use this method, which is proxy-reference friendly | |
| 62 | node_ptr operator()(const node_ptr & p) | |
| 63 | { | |
| 64 | reference_type v = *traits_->to_value_ptr(p); | |
| 65 | node_ptr n = traits_->to_node_ptr(*base_t::get()(v)); | |
| 66 | //Cloned node must be in default mode if the linking mode requires it | |
| 67 | BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(!safemode_or_autounlink || node_algorithms::unique(n)); | |
| 68 | return n; | |
| 69 | } | |
| 70 | ||
| 71 | const ValueTraits * const traits_; | |
| 72 | }; | |
| 73 | ||
| 74 | template<class F, class ValueTraits, algo_types AlgoType> | |
| 75 | struct node_disposer | |
| 76 | //Use public inheritance to avoid MSVC bugs with closures | |
| 77 | : public ebo_functor_holder<F> | |
| 78 | { | |
| 79 | typedef ValueTraits value_traits; | |
| 80 | typedef typename value_traits::node_traits node_traits; | |
| 81 | typedef typename node_traits::node_ptr node_ptr; | |
| 82 | typedef ebo_functor_holder<F> base_t; | |
| 83 | typedef typename get_algo< AlgoType | |
| 84 | , node_traits>::type node_algorithms; | |
| 85 | static const bool safemode_or_autounlink = | |
| 86 | is_safe_autounlink<value_traits::link_mode>::value; | |
| 87 | ||
| 88 | node_disposer(F f, const ValueTraits *cont) | |
| 89 | : base_t(f), traits_(cont) | |
| 90 | {} | |
| 91 | ||
| 92 | void operator()(const node_ptr & p) | |
| 93 | { | |
| 94 | if(safemode_or_autounlink) | |
| 95 | node_algorithms::init(p); | |
| 96 | base_t::get()(traits_->to_value_ptr(p)); | |
| 97 | } | |
| 98 | const ValueTraits * const traits_; | |
| 99 | }; | |
| 100 | ||
| 101 | } //namespace detail{ | |
| 102 | } //namespace intrusive{ | |
| 103 | } //namespace boost{ | |
| 104 | ||
| 105 | #endif //BOOST_INTRUSIVE_DETAIL_NODE_CLONER_DISPOSER_HPP |