GridBlockAllocator< DataT > Class Template Reference

The GridBlockAllocator is used to pre-allocate the meory of multiple Grids in "chunks". More...

#include <grid_allocator.hpp>

Collaboration diagram for GridBlockAllocator< DataT >:

Classes
struct	Chunk

Public Types
using	Deleter = std::function<void()>

Public Member Functions
std::pair< DataT *, Deleter >	allocateBlock ()
size_t	capacity () const
void	clear ()
	GridBlockAllocator (const GridBlockAllocator &)=delete
	GridBlockAllocator (GridBlockAllocator &&)=default
	GridBlockAllocator (size_t log2dim)
size_t	memUsage () const
GridBlockAllocator &	operator= (const GridBlockAllocator &other)=delete
GridBlockAllocator &	operator= (GridBlockAllocator &&other)=default
void	releaseUnusedMemory ()
size_t	size () const

Static Public Attributes
static constexpr size_t	blocks_per_chunk = 512

Protected Member Functions
void	addNewChunk ()
Deleter	createDeleter (std::shared_ptr< Chunk > chunk, uint32_t index)

Protected Attributes
size_t	block_bytes_ = 0
size_t	capacity_ = 0
std::vector< std::shared_ptr< Chunk > >	chunks_
size_t	log2dim_ = 0
std::unique_ptr< std::mutex >	mutex_
size_t	size_ = 0

Detailed Description

template<typename DataT>
class Bonxai::GridBlockAllocator< DataT >

The GridBlockAllocator is used to pre-allocate the meory of multiple Grids in "chunks".

It is a very simple memory pool.

Each chunk allocates memory for 512 Grids

Member Typedef Documentation

Deleter

template<typename DataT>

using Deleter = std::function<void()>

Constructor & Destructor Documentation

GridBlockAllocator() [1/3]

template<typename DataT>

GridBlockAllocator

(

size_t

log2dim

)

GridBlockAllocator() [2/3]

template<typename DataT>

GridBlockAllocator ( const GridBlockAllocator< DataT > & )

delete

GridBlockAllocator() [3/3]

template<typename DataT>

GridBlockAllocator ( GridBlockAllocator< DataT > && )

default

Member Function Documentation

addNewChunk()

template<typename DataT>

void addNewChunk ( )

protected

allocateBlock()

template<typename DataT>

std::pair< DataT *, typename GridBlockAllocator< DataT >::Deleter > allocateBlock

(

)

capacity()

template<typename DataT>

size_t capacity

(

)

const

clear()

template<typename DataT>

void clear

(

)

createDeleter()

template<typename DataT>

GridBlockAllocator< DataT >::Deleter createDeleter ( std::shared_ptr< Chunk > chunk, uint32_t index )

protected

memUsage()

template<typename DataT>

size_t memUsage

(

)

const

operator=() [1/2]

template<typename DataT>

GridBlockAllocator & operator= ( const GridBlockAllocator< DataT > & other )

delete

operator=() [2/2]

template<typename DataT>

GridBlockAllocator & operator= ( GridBlockAllocator< DataT > && other )

default

releaseUnusedMemory()

template<typename DataT>

void releaseUnusedMemory

(

)

size()

template<typename DataT>

size_t size

(

)

const

Member Data Documentation

block_bytes_

template<typename DataT>

size_t block_bytes_ = 0

protected

blocks_per_chunk

template<typename DataT>

size_t blocks_per_chunk = 512

staticconstexpr

capacity_

template<typename DataT>

size_t capacity_ = 0

protected

chunks_

template<typename DataT>

std::vector<std::shared_ptr<Chunk> > chunks_

protected

log2dim_

template<typename DataT>

size_t log2dim_ = 0

protected

mutex_

template<typename DataT>

std::unique_ptr<std::mutex> mutex_

protected

size_

template<typename DataT>

size_t size_ = 0

protected

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The documentation for this class was generated from the following file:

• maps_managers/easynav_bonxai_maps_manager/include/bonxai/grid_allocator.hpp