| title | rts_alloc Class | Microsoft Docs | |||||||||||||
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| ms.date | 11/04/2016 | |||||||||||||
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| ms.assetid | ab41bffa-83d1-4a1c-87b9-5707d516931f | |||||||||||||
| caps.latest.revision | 19 | |||||||||||||
| author | corob-msft | |||||||||||||
| ms.author | corob | |||||||||||||
| manager | ghogen | |||||||||||||
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The rts_alloc template class describes a filter that holds an array of cache instances and determines which instance to use for allocation and deallocation at runtime instead of at compile time.
template <class Cache>
class rts_alloc
| Parameter | Description |
|---|---|
Cache |
The type of cache instances contained in the array. This can be cache_chunklist Class, cache_freelist, or cache_suballoc. |
This template class holds multiple block allocator instances and determines which instance to use for allocation or deallocation at runtime instead of at compile time. It is used with compilers that cannot compile rebind.
| allocate | Allocates a block of memory. |
| deallocate | Frees a specified number of objects from storage beginning at a specified position. |
| equals | Compares two caches for equality. |
Header: <allocators>
Namespace: stdext
Allocates a block of memory.
void *allocate(std::size_t count);
| Parameter | Description |
|---|---|
count |
The number of elements in the array to be allocated. |
A pointer to the allocated object.
The member function returns caches[_IDX].allocate(count), where the index _IDX is determined by the requested block size count, or, if count is too large, it returns operator new(count). cache, which represents the cache object.
Frees a specified number of objects from storage beginning at a specified position.
void deallocate(void* ptr, std::size_t count);
| Parameter | Description |
|---|---|
ptr |
A pointer to the first object to be deallocated from storage. |
count |
The number of objects to be deallocated from storage. |
The member function calls caches[_IDX].deallocate(ptr, count), where the index _IDX is determined by the requested block size count, or, if count is too large, it returns operator delete(ptr).
Compares two caches for equality.
bool equals(const sync<_Cache>& _Other) const;
| Parameter | Description |
|---|---|
_Cache |
The cache object associated with the filter. |
_Other |
The cache object to compare for equality. |
true if the result of caches[0].equals(other.caches[0]); otherwise, false. caches represents the array of cache objects.