StackBufferAllocator< BLOCK_SIZE, LIFO, ALLOCATOR > Class Template Reference

#include <stackbufferallocator.h>

Detailed Description

template<Int BLOCK_SIZE, Bool LIFO, typename ALLOCATOR = DefaultAllocator>
class maxon::StackBufferAllocator< BLOCK_SIZE, LIFO, ALLOCATOR >

A StackBufferAllocator can be used if a large number of allocations shall be done in the sequel, and either all of those allocations will be freed together at a later point, or they will be freed in reverse order (LIFO). If all allocations will be freed together, set the LIFO template parameter to false, then there is practically no memory overhead for each allocation. For a de-allocation in reverse order, set LIFO to true. Then a structure of the size of two Ints has to be added for each allocation for bookkeeping purposes.

Template Parameters
BLOCK_SIZEMinimum size of each memory block which is obtained from ALLOCATOR.
LIFOUse true if you want to use this allocator in a stack-like LIFO way. This adds some overhead. If set to false, no actual de-allocation will happen until all allocations have been freed.
ALLOCATORThe parent allocator from which this allocator shall obtain its memory.

Classes

struct  Header
 

Public Member Functions

 StackBufferAllocator ()
 
void * Alloc (Int size, MAXON_SOURCE_LOCATION_DECLARATION)
 
void Free (const void *ptr)
 
 ~StackBufferAllocator ()
 

Static Public Member Functions

static Bool IsCompatibleWithDefaultAllocator (void *)
 

Private Attributes

ALLOCATOR _allocator
 
BaseArray< Char * > _memory
 
Header _header
 
Char_end
 
Int _allocCount
 

Constructor & Destructor Documentation

◆ StackBufferAllocator()

◆ ~StackBufferAllocator()

Member Function Documentation

◆ Alloc()

void* Alloc ( Int  size,
MAXON_SOURCE_LOCATION_DECLARATION   
)

◆ Free()

void Free ( const void *  ptr)

◆ IsCompatibleWithDefaultAllocator()

static Bool IsCompatibleWithDefaultAllocator ( void *  )
static

Returns if a memory block allocated via this allocator can be reallocated or freed by the DefaultAllocator.

Returns
Always false.

Member Data Documentation

◆ _allocator

ALLOCATOR _allocator
private

◆ _memory

BaseArray<Char*> _memory
private

◆ _header

Header _header
private

◆ _end

Char* _end
private

◆ _allocCount

Int _allocCount
private