Static secure memory block with cleanup.
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typedef AllocatorBase< T >::value_type | value_type |
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typedef AllocatorBase< T >::size_type | size_type |
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typedef AllocatorBase< T >::difference_type | difference_type |
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typedef AllocatorBase< T >::pointer | pointer |
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typedef AllocatorBase< T >::const_pointer | const_pointer |
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typedef AllocatorBase< T >::reference | reference |
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typedef AllocatorBase< T >::const_reference | const_reference |
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typedef T | value_type |
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typedef size_t | size_type |
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typedef std::ptrdiff_t | difference_type |
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typedef T * | pointer |
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typedef const T * | const_pointer |
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typedef T & | reference |
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typedef const T & | const_reference |
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| FixedSizeAllocatorWithCleanup () |
| Constructs a FixedSizeAllocatorWithCleanup.
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pointer | allocate (size_type size) |
| Allocates a block of memory. More...
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pointer | allocate (size_type size, const void *hint) |
| Allocates a block of memory. More...
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void | deallocate (void *ptr, size_type size) |
| Deallocates a block of memory. More...
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pointer | reallocate (pointer oldPtr, size_type oldSize, size_type newSize, bool preserve) |
| Reallocates a block of memory. More...
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size_type | max_size () const |
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pointer | address (reference r) const |
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const_pointer | address (const_reference r) const |
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void | construct (pointer p, const T &val) |
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void | destroy (pointer p) |
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size_type | max_size () const |
| Returns the maximum number of elements the allocator can provide. More...
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template<typename U , typename... Args> |
void | construct (U *ptr, Args &&... args) |
| Constructs a new U using variadic arguments. More...
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template<typename U > |
void | destroy (U *ptr) |
| Destroys an U constructed with variadic arguments. More...
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template<class T, size_t S, class A = NullAllocator<T>, bool T_Align16 = false>
class FixedSizeAllocatorWithCleanup< T, S, A, T_Align16 >
Static secure memory block with cleanup.
- Template Parameters
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T | class or type |
S | fixed-size of the stack-based memory block, in elements |
A | AllocatorBase derived class for allocation and cleanup FixedSizeAllocatorWithCleanup provides a fixed-size, stack- based allocation at compile time. The class can grow its memory block at runtime if a suitable allocator is available. If size grows beyond S and a suitable allocator is available, then the statically allocated array is obsoleted. |
- Note
- This allocator can't be used with standard collections because they require that all objects of the same allocator type are equivalent.
Definition at line 301 of file secblock.h.
◆ allocate() [1/2]
template<class T , size_t S, class A = NullAllocator<T>, bool T_Align16 = false>
Allocates a block of memory.
- Parameters
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size | size of the memory block, in elements FixedSizeAllocatorWithCleanup provides a fixed-size, stack-based allocation at compile time. If size is less than or equal to S , then a pointer to the static array is returned. The class can grow its memory block at runtime if a suitable allocator is available. If size grows beyond S and a suitable allocator is available, then the statically allocated array is obsoleted. If a suitable allocator is not available, as with a NullAllocator, then the function returns NULL and a runtime error eventually occurs. |
- See also
- reallocate(), SecBlockWithHint
Definition at line 321 of file secblock.h.
◆ allocate() [2/2]
template<class T , size_t S, class A = NullAllocator<T>, bool T_Align16 = false>
Allocates a block of memory.
- Parameters
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size | size of the memory block, in elements |
hint | an unused hint FixedSizeAllocatorWithCleanup provides a fixed-size, stack- based allocation at compile time. If size is less than or equal to S, then a pointer to the static array is returned. The class can grow its memory block at runtime if a suitable allocator is available. If size grows beyond S and a suitable allocator is available, then the statically allocated array is obsoleted. If a suitable allocator is not available, as with a NullAllocator, then the function returns NULL and a runtime error eventually occurs. |
- See also
- reallocate(), SecBlockWithHint
Definition at line 347 of file secblock.h.
◆ deallocate()
template<class T , size_t S, class A = NullAllocator<T>, bool T_Align16 = false>
Deallocates a block of memory.
- Parameters
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ptr | a pointer to the memory block to deallocate |
size | size of the memory block, in elements The memory block is wiped or zeroized before deallocation. If the statically allocated memory block is active, then no additional actions are taken after the wipe. If a dynamic memory block is active, then the pointer and size are passed to the allocator for deallocation. |
Definition at line 366 of file secblock.h.
◆ reallocate()
template<class T , size_t S, class A = NullAllocator<T>, bool T_Align16 = false>
Reallocates a block of memory.
- Parameters
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oldPtr | the previous allocation |
oldSize | the size of the previous allocation |
newSize | the new, requested size |
preserve | flag that indicates if the old allocation should be preserved |
- Returns
- pointer to the new memory block FixedSizeAllocatorWithCleanup provides a fixed-size, stack- based allocation at compile time. If size is less than or equal to S, then a pointer to the static array is returned. The class can grow its memory block at runtime if a suitable allocator is available. If size grows beyond S and a suitable allocator is available, then the statically allocated array is obsoleted. If a suitable allocator is not available, as with a NullAllocator, then the function returns NULL and a runtime error eventually occurs.
- Note
- size is the count of elements, and not the number of bytes.
- See also
- reallocate(), SecBlockWithHint
Definition at line 396 of file secblock.h.
The documentation for this class was generated from the following file: