xrpl::SlabAllocator< Type >::SlabBlock Struct Reference

A block of memory that is owned by a slab allocator. More...

Collaboration diagram for xrpl::SlabAllocator< Type >::SlabBlock:

Public Member Functions
	SlabBlock (SlabBlock *next, std::uint8_t *data, std::size_t size, std::size_t item)
	~SlabBlock ()=default
	SlabBlock (SlabBlock const &other)=delete
SlabBlock &	operator= (SlabBlock const &other)=delete
	SlabBlock (SlabBlock &&other)=delete
SlabBlock &	operator= (SlabBlock &&other)=delete
bool	own (std::uint8_t const *pIn) const noexcept
	Determines whether the given pointer belongs to this allocator.
std::uint8_t *	allocate () noexcept
void	deallocate (std::uint8_t *ptr) noexcept
	Return an item to this allocator's freelist.

Public Attributes
std::mutex	m
std::uint8_t *	l = nullptr
SlabBlock *	next
std::uint8_t const *const	p = nullptr
std::size_t const	size

Detailed Description

template<typename Type>
struct xrpl::SlabAllocator< Type >::SlabBlock

A block of memory that is owned by a slab allocator.

Definition at line 36 of file SlabAllocator.h.

Constructor & Destructor Documentation

SlabBlock() [1/3]

template<typename Type>

xrpl::SlabAllocator< Type >::SlabBlock::SlabBlock	(	SlabBlock *	next,
		std::uint8_t *	data,
		std::size_t	size,
		std::size_t	item )

Definition at line 53 of file SlabAllocator.h.

~SlabBlock()

template<typename Type>

xrpl::SlabAllocator< Type >::SlabBlock::~SlabBlock ( )

default

SlabBlock() [2/3]

template<typename Type>

xrpl::SlabAllocator< Type >::SlabBlock::SlabBlock ( SlabBlock const & other )

delete

SlabBlock() [3/3]

template<typename Type>

xrpl::SlabAllocator< Type >::SlabBlock::SlabBlock ( SlabBlock && other )

delete

Member Function Documentation

operator=() [1/2]

template<typename Type>

SlabBlock & xrpl::SlabAllocator< Type >::SlabBlock::operator= ( SlabBlock const & other )

delete

operator=() [2/2]

template<typename Type>

SlabBlock & xrpl::SlabAllocator< Type >::SlabBlock::operator= ( SlabBlock && other )

delete

own()

template<typename Type>

bool xrpl::SlabAllocator< Type >::SlabBlock::own ( std::uint8_t const * pIn ) const

noexcept

Determines whether the given pointer belongs to this allocator.

Definition at line 84 of file SlabAllocator.h.

allocate()

template<typename Type>

std::uint8_t * xrpl::SlabAllocator< Type >::SlabBlock::allocate ( )

noexcept

Definition at line 90 of file SlabAllocator.h.

deallocate()

template<typename Type>

void xrpl::SlabAllocator< Type >::SlabBlock::deallocate ( std::uint8_t * ptr )

noexcept

Return an item to this allocator's freelist.

Parameters

ptr	The pointer to the chunk of memory being deallocated.

Note

This is a dangerous, private interface; the item being returned should belong to this allocator. Debug builds will check and assert if this is not the case. Release builds will not.

Definition at line 119 of file SlabAllocator.h.

Member Data Documentation

m

template<typename Type>

std::mutex xrpl::SlabAllocator< Type >::SlabBlock::m

Definition at line 39 of file SlabAllocator.h.

l

template<typename Type>

std::uint8_t* xrpl::SlabAllocator< Type >::SlabBlock::l = nullptr

Definition at line 42 of file SlabAllocator.h.

next

template<typename Type>

SlabBlock* xrpl::SlabAllocator< Type >::SlabBlock::next

Definition at line 45 of file SlabAllocator.h.

p

template<typename Type>

std::uint8_t const* const xrpl::SlabAllocator< Type >::SlabBlock::p = nullptr

Definition at line 48 of file SlabAllocator.h.

size

template<typename Type>

std::size_t const xrpl::SlabAllocator< Type >::SlabBlock::size

Definition at line 51 of file SlabAllocator.h.