PMDK C++ bindings  1.9.1
This is the C++ bindings documentation for PMDK's libpmemobj.
make_atomic_impl.hpp
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32 
38 #ifndef LIBPMEMOBJ_CPP_MAKE_ATOMIC_IMPL_HPP
39 #define LIBPMEMOBJ_CPP_MAKE_ATOMIC_IMPL_HPP
40 
41 #include <cstddef>
42 #include <new>
43 
47 
48 namespace pmem
49 {
50 
51 namespace detail
52 {
53 
54 /*
55  * C-style function called by the allocator.
56  *
57  * The arg is a tuple containing constructor parameters.
58  */
59 template <typename T, typename Tuple, typename... Args>
60 int
61 obj_constructor(PMEMobjpool *pop, void *ptr, void *arg)
62 {
63  auto ret = c_style_construct<T, Tuple, Args...>(ptr, arg);
64 
65  if (ret != 0)
66  return -1;
67 
68  pmemobj_persist(pop, ptr, sizeof(T));
69 
70  return 0;
71 }
72 
73 /*
74  * Constructor used for atomic array allocations.
75  *
76  * Returns -1 if an exception was thrown during T's construction,
77  * 0 otherwise.
78  */
79 template <typename T>
80 int
81 array_constructor(PMEMobjpool *pop, void *ptr, void *arg)
82 {
83  std::size_t N = *static_cast<std::size_t *>(arg);
84 
85  T *tptr = static_cast<T *>(ptr);
86  try {
87  for (std::size_t i = 0; i < N; ++i)
88  detail::create<T>(tptr + i);
89  } catch (...) {
90  return -1;
91  }
92 
93  pmemobj_persist(pop, ptr, sizeof(T) * N);
94 
95  return 0;
96 }
97 
98 } /* namespace detail */
99 
100 } /* namespace pmem */
101 
102 #endif /* LIBPMEMOBJ_CPP_MAKE_ATOMIC_IMPL_HPP */
pmem
Persistent memory namespace.
Definition: allocation_flag.hpp:44
integer_sequence.hpp
Create c++14 style index sequence.
array_traits.hpp
Common array traits.
life.hpp
Functions for destroying arrays.