#include <SlabAllocator.h>

Collaboration diagram for SlabAllocator:

Public Member Functions
	SlabAllocator (const size_t limit, bool opt4hashmap=false)

	SlabAllocator (void *memPool, const size_t limit, size_t pageSize, size_t alignment)

	SlabAllocator (void *memPool, const size_t limit, bool opt4hashmap=false)

	~SlabAllocator ()

void	init (const size_t limit, const double factor, const bool prealloc)

void *	slabs_alloc (const size_t size)

void *	slabs_alloc_unsafe (const size_t size)

void	slabs_free (void *ptr, size_t size)

void	slabs_free_unsafe (void *ptr, size_t size)

void *	do_slabs_alloc (const size_t size)

void	do_slabs_free (void *ptr, const size_t size)

void	do_slabs_free (void *ptr, const size_t size, unsigned int id)

unsigned int	slabs_clsid (const size_t size)

int	do_slabs_newslab (const unsigned int id)

void *	get_page_from_global_pool (void)

int	grow_slab_list (const unsigned int id)

void *	memory_allocate (size_t size)

void	slabs_preallocate (const unsigned int maxslabs)

void	split_slab_page_into_freelist (char *ptr, const unsigned int id)

Private Attributes
size_t	mem_limit = 0

size_t	mem_malloced = 0

bool	mem_limit_reached = false

int	power_largest

void *	mem_base = NULL

void *	mem_current = NULL

size_t	mem_avail = 0

pthread_mutex_t	slabs_lock

struct settings_t	settings

slabclass_t	slabclass [MAX_NUMBER_OF_SLAB_CLASSES]

bool	opt4hashmap = false

bool	opt4sharedmem = false

bool	useExternalMemory = false

Detailed Description

Definition at line 73 of file SlabAllocator.h.

Constructor & Destructor Documentation

SlabAllocator::SlabAllocator	(	const size_t	limit,
		bool	opt4hashmap = `false`
	)

Definition at line 33 of file SlabAllocator.cc.

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SlabAllocator::SlabAllocator	(	void *	memPool,
		const size_t	limit,
		size_t	pageSize,
		size_t	alignment
	)

Definition at line 52 of file SlabAllocator.cc.

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SlabAllocator::SlabAllocator	(	void *	memPool,
		const size_t	limit,
		bool	opt4hashmap = `false`
	)

Definition at line 64 of file SlabAllocator.cc.

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SlabAllocator::~SlabAllocator ( )

Definition at line 86 of file SlabAllocator.cc.

Member Function Documentation

void * SlabAllocator::do_slabs_alloc ( const size_t size )

Definition at line 311 of file SlabAllocator.cc.

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void SlabAllocator::do_slabs_free	(	void *	ptr,
		const size_t	size
	)

Definition at line 381 of file SlabAllocator.cc.

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void SlabAllocator::do_slabs_free	(	void *	ptr,
		const size_t	size,
		unsigned int	id
	)

Definition at line 359 of file SlabAllocator.cc.

int SlabAllocator::do_slabs_newslab ( const unsigned int id )

Definition at line 198 of file SlabAllocator.cc.

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void * SlabAllocator::get_page_from_global_pool ( void )

Definition at line 238 of file SlabAllocator.cc.

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int SlabAllocator::grow_slab_list ( const unsigned int id )

Definition at line 224 of file SlabAllocator.cc.

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void SlabAllocator::init	(	const size_t	limit,
		const double	factor,
		const bool	prealloc
	)

Init the subsystem. 1st argument is the limit on no. of bytes to allocate, 0 if no limit. 2nd argument is the growth factor; each slab will use a chunk size equal to the previous slab's chunk size times this factor. 3rd argument specifies if the slab allocator should allocate all memory up front (if true), or allocate memory in chunks as it is needed (if false)

Definition at line 99 of file SlabAllocator.cc.

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void * SlabAllocator::memory_allocate ( size_t size )

Definition at line 257 of file SlabAllocator.cc.

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void * SlabAllocator::slabs_alloc ( const size_t size )

Definition at line 287 of file SlabAllocator.cc.

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void * SlabAllocator::slabs_alloc_unsafe ( const size_t size )

Definition at line 294 of file SlabAllocator.cc.

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unsigned int SlabAllocator::slabs_clsid ( const size_t size )

Definition at line 299 of file SlabAllocator.cc.

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void SlabAllocator::slabs_free	(	void *	ptr,
		size_t	size
	)

Free previously allocated object

Definition at line 349 of file SlabAllocator.cc.

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void SlabAllocator::slabs_free_unsafe	(	void *	ptr,
		size_t	size
	)

Definition at line 355 of file SlabAllocator.cc.

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void SlabAllocator::slabs_preallocate ( const unsigned int maxslabs )

Definition at line 173 of file SlabAllocator.cc.

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void SlabAllocator::split_slab_page_into_freelist	(	char *	ptr,
		const unsigned int	id
	)

Definition at line 248 of file SlabAllocator.cc.

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Member Data Documentation

size_t SlabAllocator::mem_avail = 0

private

Definition at line 114 of file SlabAllocator.h.

void* SlabAllocator::mem_base = NULL

private

Definition at line 112 of file SlabAllocator.h.

void* SlabAllocator::mem_current = NULL

private

Definition at line 113 of file SlabAllocator.h.

size_t SlabAllocator::mem_limit = 0

private

Definition at line 108 of file SlabAllocator.h.

bool SlabAllocator::mem_limit_reached = false

private

Definition at line 110 of file SlabAllocator.h.

size_t SlabAllocator::mem_malloced = 0

private

Definition at line 109 of file SlabAllocator.h.

bool SlabAllocator::opt4hashmap = false

private

Definition at line 118 of file SlabAllocator.h.

bool SlabAllocator::opt4sharedmem = false

private

Definition at line 119 of file SlabAllocator.h.

int SlabAllocator::power_largest

private

Definition at line 111 of file SlabAllocator.h.

struct settings_t SlabAllocator::settings

private

Definition at line 116 of file SlabAllocator.h.

slabclass_t SlabAllocator::slabclass[MAX_NUMBER_OF_SLAB_CLASSES]

private

Definition at line 117 of file SlabAllocator.h.

pthread_mutex_t SlabAllocator::slabs_lock

private

Definition at line 115 of file SlabAllocator.h.

bool SlabAllocator::useExternalMemory = false

private

Definition at line 120 of file SlabAllocator.h.

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

plinycompute/pdb/src/memory/headers/SlabAllocator.h
plinycompute/pdb/src/memory/source/SlabAllocator.cc

Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation