Memory allocator that obtains storage directly from virtual memory.
Declared in <bdlma_heapbypassallocator.h>
class HeapBypassAllocator
: public bslma::AllocatorThis class allows the caller to allocate memory directly from virtual memory, without going through the heap like malloc or new would. Note that the only way to free any memory allocated with this object is to destroy the object, at which point all memory it has allocated is freed. Thread-safe.
| Name | Description |
|---|---|
bslma::Allocator | Pure abstract protocol for clients and suppliers of raw memory. |
| Name | Description |
|---|---|
size_type | Alias for an unsigned integral type capable of representing the number of bytes in this platform's virtual address space. |
| Name | Description |
|---|---|
HeapBypassAllocator [constructor] | Constructors |
~HeapBypassAllocator [destructor] [virtual] | Destroy this object, releasing all managed buffers of memory that it has allocated. |
operator= | |
allocate | allocate overloads |
deallocate | This method has no effect for this heap bypass allocator. |
deleteObject | deleteObject overloads |
deleteObjectRaw | deleteObjectRaw overloads |
is_equal |
| Name | Description |
|---|---|
throwBadAlloc | Throw std::bad_alloc or abort the program. |
| Name | Description |
|---|---|
do_allocate [virtual] | Return a newly allocated block of at least bytes with alignment. |
do_deallocate [virtual] | Return the memory block at p having bytes and alignment. |
do_is_equal [virtual] | Return whether this allocator can exchange memory with other. |