lv_mem.h

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#ifndef LV_MEM_H
#define LV_MEM_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
/*********************
 *      INCLUDES
 *********************/
#include "../lv_conf_internal.h"
 
#include <stdint.h>
#include <stddef.h>
#include <string.h>
 
#include "lv_types.h"
 
/*********************
 *      DEFINES
 *********************/
 
/**********************
 *      TYPEDEFS
 **********************/
 
typedef struct {
    uint32_t total_size; 
    uint32_t free_cnt;
    uint32_t free_size; 
    uint32_t free_biggest_size;
    uint32_t used_cnt;
    uint32_t max_used; 
    uint8_t used_pct; 
    uint8_t frag_pct; 
} lv_mem_monitor_t;
 
typedef struct {
    void * p;
    uint16_t size;
    uint8_t used : 1;
} lv_mem_buf_t;
 
typedef lv_mem_buf_t lv_mem_buf_arr_t[LV_MEM_BUF_MAX_NUM];
 
/**********************
 * GLOBAL PROTOTYPES
 **********************/
 
void lv_mem_init(void);
 
void lv_mem_deinit(void);
 
void * lv_mem_alloc(size_t size);
 
void lv_mem_free(void * data);
 
void * lv_mem_realloc(void * data_p, size_t new_size);
 
lv_res_t lv_mem_test(void);
 
void lv_mem_monitor(lv_mem_monitor_t * mon_p);
 
 
void * lv_mem_buf_get(uint32_t size);
 
void lv_mem_buf_release(void * p);
 
void lv_mem_buf_free_all(void);
 
 
#if LV_MEMCPY_MEMSET_STD
 
static inline void * lv_memcpy(void * dst, const void * src, size_t len)
{
    return memcpy(dst, src, len);
}
 
static inline void * lv_memcpy_small(void * dst, const void * src, size_t len)
{
    return memcpy(dst, src, len);
}
 
static inline void lv_memset(void * dst, uint8_t v, size_t len)
{
    memset(dst, v, len);
}
 
static inline void lv_memset_00(void * dst, size_t len)
{
    memset(dst, 0x00, len);
}
 
static inline void lv_memset_ff(void * dst, size_t len)
{
    memset(dst, 0xFF, len);
}
 
#else
LV_ATTRIBUTE_FAST_MEM void * lv_memcpy(void * dst, const void * src, size_t len);
 
LV_ATTRIBUTE_FAST_MEM static inline void * lv_memcpy_small(void * dst, const void * src, size_t len)
{
    uint8_t * d8 = (uint8_t *)dst;
    const uint8_t * s8 = (const uint8_t *)src;
 
    while(len) {
        *d8 = *s8;
        d8++;
        s8++;
        len--;
    }
 
    return dst;
}
 
LV_ATTRIBUTE_FAST_MEM void lv_memset(void * dst, uint8_t v, size_t len);
 
LV_ATTRIBUTE_FAST_MEM void lv_memset_00(void * dst, size_t len);
 
LV_ATTRIBUTE_FAST_MEM void lv_memset_ff(void * dst, size_t len);
 
 
#endif
 
/**********************
 *      MACROS
 **********************/
 
#ifdef __cplusplus
} /*extern "C"*/
#endif
 
#endif /*LV_MEM_H*/