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src/support/allocators/zeroafterfree.h
| Show All 16 Lines | struct zero_after_free_allocator : public std::allocator<T> { | ||||
| typedef std::allocator<T> base; | typedef std::allocator<T> base; | ||||
| typedef typename base::size_type size_type; | typedef typename base::size_type size_type; | ||||
| typedef typename base::difference_type difference_type; | typedef typename base::difference_type difference_type; | ||||
| typedef typename base::pointer pointer; | typedef typename base::pointer pointer; | ||||
| typedef typename base::const_pointer const_pointer; | typedef typename base::const_pointer const_pointer; | ||||
| typedef typename base::reference reference; | typedef typename base::reference reference; | ||||
| typedef typename base::const_reference const_reference; | typedef typename base::const_reference const_reference; | ||||
| typedef typename base::value_type value_type; | typedef typename base::value_type value_type; | ||||
| zero_after_free_allocator() throw() {} | zero_after_free_allocator() noexcept {} | ||||
| zero_after_free_allocator(const zero_after_free_allocator &a) throw() | zero_after_free_allocator(const zero_after_free_allocator &a) noexcept | ||||
| : base(a) {} | : base(a) {} | ||||
| template <typename U> | template <typename U> | ||||
| zero_after_free_allocator(const zero_after_free_allocator<U> &a) throw() | zero_after_free_allocator(const zero_after_free_allocator<U> &a) noexcept | ||||
| : base(a) {} | : base(a) {} | ||||
| ~zero_after_free_allocator() throw() {} | ~zero_after_free_allocator() noexcept {} | ||||
| template <typename _Other> struct rebind { | template <typename _Other> struct rebind { | ||||
| typedef zero_after_free_allocator<_Other> other; | typedef zero_after_free_allocator<_Other> other; | ||||
| }; | }; | ||||
| void deallocate(T *p, std::size_t n) { | void deallocate(T *p, std::size_t n) { | ||||
| if (p != nullptr) memory_cleanse(p, sizeof(T) * n); | if (p != nullptr) memory_cleanse(p, sizeof(T) * n); | ||||
| std::allocator<T>::deallocate(p, n); | std::allocator<T>::deallocate(p, n); | ||||
| } | } | ||||
| }; | }; | ||||
| // Byte-vector that clears its contents before deletion. | // Byte-vector that clears its contents before deletion. | ||||
| typedef std::vector<char, zero_after_free_allocator<char>> CSerializeData; | typedef std::vector<char, zero_after_free_allocator<char>> CSerializeData; | ||||
| #endif // BITCOIN_SUPPORT_ALLOCATORS_ZEROAFTERFREE_H | #endif // BITCOIN_SUPPORT_ALLOCATORS_ZEROAFTERFREE_H | ||||