lv_mem.h File Reference

#include "../../../lv_conf.h"
#include <stdint.h>
#include <stddef.h>
#include "lv_log.h"

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Data Structures
struct	lv_mem_monitor_t

Macros
#define	lv_mem_assert(p)

Functions
void	lv_mem_init (void)
void *	lv_mem_alloc (uint32_t size)
void	lv_mem_free (const void *data)
void *	lv_mem_realloc (void *data_p, uint32_t new_size)
void	lv_mem_defrag (void)
void	lv_mem_monitor (lv_mem_monitor_t *mon_p)
uint32_t	lv_mem_get_size (const void *data)

Macro Definition Documentation

lv_mem_assert

#define lv_mem_assert

(

p

)

Value:

{                                                                                                                  \
        if(p == NULL)                                                                                                  \
            while(1)                                                                                                   \
                ;                                                                                                      \
    }

Halt on NULL pointer p pointer to a memory

Function Documentation

lv_mem_init()

void lv_mem_init

(

void

)

Initiaize the dyn_mem module (work memory and other variables)

lv_mem_alloc()

void* lv_mem_alloc

(

uint32_t

size

)

Allocate a memory dynamically

Parameters

size	size of the memory to allocate in bytes

Returns

pointer to the allocated memory

lv_mem_free()

void lv_mem_free

(

const void *

data

)

Free an allocated data

Parameters

data	pointer to an allocated memory

lv_mem_realloc()

void* lv_mem_realloc	(	void *	data_p,
		uint32_t	new_size
	)

Reallocate a memory with a new size. The old content will be kept.

Parameters

data	pointer to an allocated memory. Its content will be copied to the new memory block and freed
new_size	the desired new size in byte

Returns

pointer to the new memory

lv_mem_defrag()

void lv_mem_defrag

(

void

)

Join the adjacent free memory blocks

lv_mem_monitor()

void lv_mem_monitor

(

lv_mem_monitor_t *

mon_p

)

Give information about the work memory of dynamic allocation

Parameters

mon_p

pointer to a dm_mon_p variable, the result of the analysis will be stored here

lv_mem_get_size()

uint32_t lv_mem_get_size

(

const void *

data

)

Give the size of an allocated memory

Parameters

data	pointer to an allocated memory

Returns

the size of data memory in bytes