PMDK C++ bindings  1.9
This is the C++ bindings documentation for PMDK's libpmemobj.
p.hpp
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32 
38 #ifndef LIBPMEMOBJ_CPP_P_HPP
39 #define LIBPMEMOBJ_CPP_P_HPP
40 
41 #include <memory>
42 
45 
46 namespace pmem
47 {
48 
49 namespace obj
50 {
63 template <typename T>
64 class p {
65  typedef p<T> this_type;
66 
67 public:
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,
113  typename = typename std::enable_if<
114  std::is_convertible<Y, T>::value>::type>
115  p &
116  operator=(const p<Y> &rhs)
117  {
118  this_type(rhs).swap(*this);
119 
120  return *this;
121  }
122 
126  operator T() const noexcept
127  {
128  return this->val;
129  }
130 
141  T &
143  {
144  detail::conditional_add_to_tx(this);
145 
146  return this->val;
147  }
148 
156  const T &
157  get_ro() const noexcept
158  {
159  return this->val;
160  }
161 
168  void
169  swap(p &other)
170  {
171  detail::conditional_add_to_tx(this);
172  detail::conditional_add_to_tx(&other);
173  std::swap(this->val, other.val);
174  }
175 
176 private:
177  T val;
178 };
179 
186 template <class T>
187 inline void
188 swap(p<T> &a, p<T> &b)
189 {
190  a.swap(b);
191 }
192 
193 } /* namespace obj */
194 
195 } /* namespace pmem */
196 
197 #endif /* LIBPMEMOBJ_CPP_P_HPP */
pmem::obj::p::get_ro
const T & get_ro() const noexcept
Retrieves read-only const reference of the object.
Definition: p.hpp:157
pmem
Persistent memory namespace.
Definition: allocation_flag.hpp:44
pmem::obj::swap
void swap(p< T > &a, p< T > &b)
Swaps two p objects of the same type.
Definition: p.hpp:188
pmem::obj::p::swap
void swap(p &other)
Swaps two p objects of the same type.
Definition: p.hpp:169
common.hpp
Commonly used functionality.
pmem::obj::p
Resides on pmem class.
Definition: p.hpp:64
pmem::obj::p::operator=
p & operator=(const p< Y > &rhs)
Converting assignment operator from a different p<>.
Definition: p.hpp:116
pmem::obj::swap
void swap(pmem::obj::array< T, N > &lhs, pmem::obj::array< T, N > &rhs)
Non-member swap function.
Definition: array.hpp:913
specialization.hpp
Helper template for persistent ptr specialization.
pmem::obj::p::p
p()=default
Defaulted constructor.
pmem::obj::p::get_rw
T & get_rw()
Retrieves read-write reference of the object.
Definition: p.hpp:142
pmem::obj::p::p
p(const T &_val) noexcept
Value constructor.
Definition: p.hpp:75
pmem::obj::p::operator=
p & operator=(const p &rhs)
Assignment operator.
Definition: p.hpp:95