PMDK C++ bindings 1.2.0
This is the C++ bindings documentation for PMDK's libpmemobj.
p.hpp
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32
38#ifndef PMEMOBJ_P_HPP
39#define PMEMOBJ_P_HPP
40
41#include <memory>
42
45
46namespace pmem
47{
48
49namespace obj
50{
63template <typename T>
64class p {
65 typedef p<T> this_type;
66
67public:
75 p(const T &_val) noexcept : val{_val}
76 {
77 }
78
82 p() = default;
83
94 p &
95 operator=(const p &rhs)
96 {
97 this_type(rhs).swap(*this);
98
99 return *this;
100 }
101
112 template <typename Y, typename = typename std::enable_if<
113 std::is_convertible<Y, T>::value>::type>
114 p &
115 operator=(const p<Y> &rhs)
116 {
117 this_type(rhs).swap(*this);
118
119 return *this;
120 }
121
125 operator T() const noexcept
126 {
127 return this->val;
128 }
129
140 T &
142 {
143 detail::conditional_add_to_tx(this);
144
145 return this->val;
146 }
147
155 const T &
156 get_ro() const noexcept
157 {
158 return this->val;
159 }
160
167 void
168 swap(p &other)
169 {
170 detail::conditional_add_to_tx(this);
171 detail::conditional_add_to_tx(&other);
172 std::swap(this->val, other.val);
173 }
174
175private:
176 T val;
177};
178
185template <class T>
186inline void
188{
189 a.swap(b);
190}
191
192} /* namespace obj */
193
194} /* namespace pmem */
195
196#endif /* PMEMOBJ_P_HPP */
Resides on pmem class.
Definition: p.hpp:64
p(const T &_val) noexcept
Value constructor.
Definition: p.hpp:75
T & get_rw()
Retrieves read-write reference of the object.
Definition: p.hpp:141
void swap(p &other)
Swaps two p objects of the same type.
Definition: p.hpp:168
p()=default
Defaulted constructor.
p & operator=(const p &rhs)
Assignment operator.
Definition: p.hpp:95
const T & get_ro() const noexcept
Retrieves read-only const reference of the object.
Definition: p.hpp:156
p & operator=(const p< Y > &rhs)
Converting assignment operator from a different p<>.
Definition: p.hpp:115
Commonly used functionality.
void swap(p< T > &a, p< T > &b)
Swaps two p objects of the same type.
Definition: p.hpp:187
Helper template for persistent ptr specialization.