1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/* Copyright 2003-2013 Joaquin M Lopez Munoz.
* Distributed under 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)
*
* See http://www.boost.org/libs/multi_index for library home page.
*/
#ifndef BOOST_MULTI_INDEX_DETAIL_INDEX_LOADER_HPP
#define BOOST_MULTI_INDEX_DETAIL_INDEX_LOADER_HPP
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
#include <algorithm>
#include <boost/archive/archive_exception.hpp>
#include <boost/noncopyable.hpp>
#include <boost/multi_index/detail/auto_space.hpp>
#include <boost/serialization/nvp.hpp>
#include <boost/throw_exception.hpp>
#include <cstddef>
namespace boost{
namespace multi_index{
namespace detail{
/* Counterpart of index_saver (check index_saver.hpp for serialization
* details.)* multi_index_container is in charge of supplying the info about
* the base sequence, and each index can subsequently load itself using the
* const interface of index_loader.
*/
template<typename Node,typename FinalNode,typename Allocator>
class index_loader:private noncopyable
{
public:
index_loader(const Allocator& al,std::size_t size):
spc(al,size),size_(size),n(0),sorted(false)
{
}
template<class Archive>
void add(Node* node,Archive& ar,const unsigned int)
{
ar>>serialization::make_nvp("position",*node);
entries()[n++]=node;
}
template<class Archive>
void add_track(Node* node,Archive& ar,const unsigned int)
{
ar>>serialization::make_nvp("position",*node);
}
/* A rearranger is passed two nodes, and is expected to
* reposition the second after the first.
* If the first node is 0, then the second should be moved
* to the beginning of the sequence.
*/
template<typename Rearranger,class Archive>
void load(Rearranger r,Archive& ar,const unsigned int)const
{
FinalNode* prev=unchecked_load_node(ar);
if(!prev)return;
if(!sorted){
std::sort(entries(),entries()+size_);
sorted=true;
}
check_node(prev);
for(;;){
for(;;){
FinalNode* node=load_node(ar);
if(!node)break;
if(node==prev)prev=0;
r(prev,node);
prev=node;
}
prev=load_node(ar);
if(!prev)break;
}
}
private:
Node** entries()const{return &*spc.data();}
/* We try to delay sorting as much as possible just in case it
* is not necessary, hence this version of load_node.
*/
template<class Archive>
FinalNode* unchecked_load_node(Archive& ar)const
{
Node* node=0;
ar>>serialization::make_nvp("pointer",node);
return static_cast<FinalNode*>(node);
}
template<class Archive>
FinalNode* load_node(Archive& ar)const
{
Node* node=0;
ar>>serialization::make_nvp("pointer",node);
check_node(node);
return static_cast<FinalNode*>(node);
}
void check_node(Node* node)const
{
if(node!=0&&!std::binary_search(entries(),entries()+size_,node)){
throw_exception(
archive::archive_exception(
archive::archive_exception::other_exception));
}
}
auto_space<Node*,Allocator> spc;
std::size_t size_;
std::size_t n;
mutable bool sorted;
};
} /* namespace multi_index::detail */
} /* namespace multi_index */
} /* namespace boost */
#endif
|
Swift