mem_blocks.h File Reference

Memory Blocks Allocator. More...

#include <stddef.h>
#include <stdint.h>
#include <zephyr/kernel.h>
#include <zephyr/math/ilog2.h>
#include <zephyr/sys/bitarray.h>
#include <zephyr/sys/mem_stats.h>

Go to the source code of this file.

Macros
#define	MAX_MULTI_ALLOCATORS   8
#define	SYS_MEM_BLOCKS_DEFINE(name, blk_sz, num_blks, buf_align)
	Create a memory block object with a new backing buffer.
#define	SYS_MEM_BLOCKS_DEFINE_STATIC(name, blk_sz, num_blks, buf_align)
	Create a static memory block object with a new backing buffer.
#define	SYS_MEM_BLOCKS_DEFINE_WITH_EXT_BUF(name, blk_sz, num_blks, buf)
	Create a memory block object with a providing backing buffer.
#define	SYS_MEM_BLOCKS_DEFINE_STATIC_WITH_EXT_BUF(name, blk_sz, num_blks, buf)
	Create a static memory block object with a providing backing buffer.

Typedefs
typedef struct sys_mem_blocks	sys_mem_blocks_t
	Memory Blocks Allocator.
typedef struct sys_multi_mem_blocks	sys_multi_mem_blocks_t
	Multi Memory Blocks Allocator.
typedef sys_mem_blocks_t *(*	sys_multi_mem_blocks_choice_fn_t) (struct sys_multi_mem_blocks *group, void *cfg)
	Multi memory blocks allocator choice function.

Functions
int	sys_mem_blocks_alloc (sys_mem_blocks_t *mem_block, size_t count, void **out_blocks)
	Allocate multiple memory blocks.
int	sys_mem_blocks_alloc_contiguous (sys_mem_blocks_t *mem_block, size_t count, void **out_block)
	Allocate a contiguous set of memory blocks.
int	sys_mem_blocks_get (sys_mem_blocks_t *mem_block, void *in_block, size_t count)
	Force allocation of a specified blocks in a memory block object.
int	sys_mem_blocks_is_region_free (sys_mem_blocks_t *mem_block, void *in_block, size_t count)
	check if the region is free
int	sys_mem_blocks_free (sys_mem_blocks_t *mem_block, size_t count, void **in_blocks)
	Free multiple memory blocks.
int	sys_mem_blocks_free_contiguous (sys_mem_blocks_t *mem_block, void *block, size_t count)
	Free contiguous multiple memory blocks.
void	sys_multi_mem_blocks_init (sys_multi_mem_blocks_t *group, sys_multi_mem_blocks_choice_fn_t choice_fn)
	Initialize multi memory blocks allocator group.
void	sys_multi_mem_blocks_add_allocator (sys_multi_mem_blocks_t *group, sys_mem_blocks_t *alloc)
	Add an allocator to an allocator group.
int	sys_multi_mem_blocks_alloc (sys_multi_mem_blocks_t *group, void *cfg, size_t count, void **out_blocks, size_t *blk_size)
	Allocate memory from multi memory blocks allocator group.
int	sys_multi_mem_blocks_free (sys_multi_mem_blocks_t *group, size_t count, void **in_blocks)
	Free memory allocated from multi memory blocks allocator group.

Detailed Description

Memory Blocks Allocator.

Macro Definition Documentation

MAX_MULTI_ALLOCATORS

#define MAX_MULTI_ALLOCATORS   8