bm::mem_alloc< BA, PA > Class Template Reference
[Memory Allocation]

BM style allocator adapter. More...

#include <bmalloc.h>

Public Types
typedef BA	block_allocator_type
typedef PA	ptr_allocator_type
Public Member Functions
	mem_alloc (const BA &block_alloc=BA(), const PA &ptr_alloc=PA())
block_allocator_type	get_block_allocator () const
	Returns copy of the block allocator object.
ptr_allocator_type	get_ptr_allocator () const
	Returns copy of the ptr allocator object.
bm::word_t *	alloc_bit_block (unsigned alloc_factor=1)
	Allocates and returns bit block.
void	free_bit_block (bm::word_t *block, unsigned alloc_factor=1)
	Frees bit block allocated by alloc_bit_block.
bm::gap_word_t *	alloc_gap_block (unsigned level, const gap_word_t *glevel_len)
	Allocates GAP block using bit block allocator (BA).
void	free_gap_block (bm::gap_word_t *block, const gap_word_t *glevel_len)
	Frees GAP block using bot block allocator (BA).
void *	alloc_ptr (unsigned size=bm::set_array_size)
	Allocates block of pointers.
void	free_ptr (void *p, unsigned size=bm::set_array_size)
	Frees block of pointers.

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Detailed Description

template<class BA, class PA>
class bm::mem_alloc< BA, PA >

BM style allocator adapter.

Template takes two parameters BA - allocator object for bit blocks and PA - allocator object for pointer blocks.

Examples:

sample6.cpp.

Definition at line 139 of file bmalloc.h.

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Member Typedef Documentation

template<class BA , class PA >

typedef BA bm::mem_alloc< BA, PA >::block_allocator_type

Definition at line 142 of file bmalloc.h.

template<class BA , class PA >

typedef PA bm::mem_alloc< BA, PA >::ptr_allocator_type

Definition at line 143 of file bmalloc.h.

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Constructor & Destructor Documentation

template<class BA , class PA >

bm::mem_alloc< BA, PA >::mem_alloc	(	const BA &	block_alloc = BA(),
		const PA &	ptr_alloc = PA()
	)			[inline]

Definition at line 147 of file bmalloc.h.

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Member Function Documentation

template<class BA , class PA >

bm::word_t* bm::mem_alloc< BA, PA >::alloc_bit_block

(

unsigned

alloc_factor = 1

)

[inline]

Allocates and returns bit block.

Parameters:

alloc_factor

indicated how many blocks we want to allocate in chunk total allocation is going to be bm::set_block_size * alloc_factor Default allocation factor is 1

Definition at line 173 of file bmalloc.h.

References bm::set_block_size.

template<class BA , class PA >

bm::gap_word_t* bm::mem_alloc< BA, PA >::alloc_gap_block	(	unsigned	level,
		const gap_word_t *	glevel_len
	)			[inline]

Allocates GAP block using bit block allocator (BA).

GAP blocks in BM library belong to levels. Each level has a correspondent length described in bm::gap_len_table<>.

Parameters:

level

GAP block level.

Definition at line 193 of file bmalloc.h.

References BM_ASSERT, and bm::gap_levels.

template<class BA , class PA >

void* bm::mem_alloc< BA, PA >::alloc_ptr

(

unsigned

size = bm::set_array_size

)

[inline]

Allocates block of pointers.

Definition at line 217 of file bmalloc.h.

template<class BA , class PA >

void bm::mem_alloc< BA, PA >::free_bit_block	(	bm::word_t *	block,
		unsigned	alloc_factor = 1
	)			[inline]

Frees bit block allocated by alloc_bit_block.

Definition at line 180 of file bmalloc.h.

References IS_VALID_ADDR, and bm::set_block_size.

template<class BA , class PA >

void bm::mem_alloc< BA, PA >::free_gap_block	(	bm::gap_word_t *	block,
		const gap_word_t *	glevel_len
	)			[inline]

Frees GAP block using bot block allocator (BA).

Definition at line 205 of file bmalloc.h.

References BM_ASSERT, bm::gap_capacity(), and IS_VALID_ADDR.

template<class BA , class PA >

void bm::mem_alloc< BA, PA >::free_ptr	(	void *	p,
		unsigned	size = bm::set_array_size
	)			[inline]

Frees block of pointers.

Definition at line 224 of file bmalloc.h.

template<class BA , class PA >

block_allocator_type bm::mem_alloc< BA, PA >::get_block_allocator

(

)

const [inline]

Returns copy of the block allocator object.

Definition at line 154 of file bmalloc.h.

template<class BA , class PA >

ptr_allocator_type bm::mem_alloc< BA, PA >::get_ptr_allocator

(

)

const [inline]

Returns copy of the ptr allocator object.

Definition at line 161 of file bmalloc.h.

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

• bmalloc.h