ArrayAllocator< SIZE, ARRAY > Class Template Reference

#include <arrayallocator.h>

Detailed Description

template<Int SIZE, typename ARRAY>
class maxon::ArrayAllocator< SIZE, ARRAY >

Array allocator which only allocates and frees entries of SIZE bytes. Depending on the type of array the allocation might relocate already existing items.

Template Parameters

SIZE	The size of an entry in bytes.
ARRAY	Array to be used as allocator

Classes
struct	FreeEntry

Public Member Functions
	ArrayAllocator ()
	ArrayAllocator (ArrayAllocator &&src)
Int	ComputeArraySize (Int currentSize, Int increment, Int minChunkSize)
void *	Alloc (Int64 s, MAXON_SOURCE_LOCATION_DECLARATION)
void *	Realloc (void *, Int64, MAXON_SOURCE_LOCATION_DECLARATION)
template<typename T >
void	Free (T *&p)
Bool	IsCompatibleWithDefaultAllocator (void *p) const
ARRAY &	GetArray ()
const ARRAY &	GetArray () const

Private Attributes
Int	_usedEntryCnt
FreeEntry *	_freeEntry
ARRAY	_buffer

Constructor & Destructor Documentation

ArrayAllocator() [1/2]

ArrayAllocator

(

)

Default Constructor.

ArrayAllocator() [2/2]

ArrayAllocator

(

ArrayAllocator< SIZE, ARRAY > &&

src

)

Move constructor.

Member Function Documentation

ComputeArraySize()

Int ComputeArraySize	(	Int	currentSize,
		Int	increment,
		Int	minChunkSize
	)

Computes the new size for a growing array THREADSAFE.

Parameters

[in]	currentSize	Current number of elements.
[in]	increment	Number of elements to be added (>= 1)
[in]	minChunkSize	The minimum number of elements upon array creation.

Returns

New number of elements.

Alloc()

void* Alloc	(	Int64	s,
		MAXON_SOURCE_LOCATION_DECLARATION
	)

Allocates a memory block. The memory is not cleared, it may contain a certain byte pattern in debug mode.

Parameters

[in]	s	Block size in bytes (values < 0 will return nullptr)
[in]	allocLocation	Pass MAXON_SOURCE_LOCATION(_NAME) to add the current source line and file.

Returns

Memory block address or nullptr.

Realloc()

void* Realloc	(	void *	,
		Int64	,
		MAXON_SOURCE_LOCATION_DECLARATION
	)

Not supported for this allocator.

Returns

nullptr

Free()

void Free

(

T *&

p

)

Frees a memory block.

Parameters

[in,out]

p

Memory block address (can be nullptr, will be nullptr after return)

IsCompatibleWithDefaultAllocator()

Bool IsCompatibleWithDefaultAllocator

(

void *

p

)

const

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

Parameters

[in]

p

Memory block address.

Returns

True if the memory block can be reallocated or freed by the DefaultAllocator.

GetArray() [1/2]

ARRAY& GetArray

(

)

GetArray() [2/2]

const ARRAY& GetArray

(

)

const

Member Data Documentation

_usedEntryCnt

Int _usedEntryCnt

private

_freeEntry

FreeEntry* _freeEntry

private

_buffer

ARRAY _buffer

private