memory.h

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#ifndef CMAGIC_MEMORY_H
#define CMAGIC_MEMORY_H

#include <stdbool.h>
#include <stddef.h>
#include <stdlib.h>

#ifdef __cplusplus
extern "C" {
#endif

void
cmagic_memory_init(void *static_memory_pool, size_t static_memory_pool_size);

void *
cmagic_memory_malloc(size_t size);

void *
cmagic_memory_realloc(void *ptr, size_t size);

enum cmagic_memory_free_result {

    CMAGIC_MEMORY_FREE_RESULT_OK,

    CMAGIC_MEMORY_FREE_RESULT_OK_NULLPTR,

    CMAGIC_MEMORY_FREE_RESULT_ERR_NOT_ALLOCATED_BEFORE,

    CMAGIC_MEMORY_FREE_RESULT_ERR_ADDRESS_OUTSIDE_MEMORY_POOL,

    CMAGIC_MEMORY_FREE_RESULT_ERR_UNINITIALIZED

};

enum cmagic_memory_free_result
cmagic_memory_free_ext(void *ptr);

void
cmagic_memory_free(void *ptr);

bool
cmagic_memory_is_allocated(void *ptr);

size_t
cmagic_memory_get_allocated_bytes(void);

size_t
cmagic_memory_get_free_bytes(void);

size_t
cmagic_memory_get_allocations(void);

typedef void* (*cmagic_memory_malloc_fptr_t)(size_t size);

typedef void* (*cmagic_memory_realloc_fptr_t)(void* ptr, size_t size);

typedef void (*cmagic_memory_free_fptr_t)(void *ptr);

typedef struct {
    cmagic_memory_malloc_fptr_t malloc_function;
    cmagic_memory_realloc_fptr_t realloc_function;
    cmagic_memory_free_fptr_t free_function;
} cmagic_memory_alloc_packet_t;

static const cmagic_memory_alloc_packet_t CMAGIC_MEMORY_ALLOC_PACKET_STD = {
    malloc, realloc, free
};

static const cmagic_memory_alloc_packet_t CMAGIC_MEMORY_ALLOC_PACKET_CUSTOM_CMAGIC = {
    cmagic_memory_malloc, cmagic_memory_realloc, cmagic_memory_free
};

#ifdef __cplusplus
} // extern "C"
#endif

#endif /* CMAGIC_MEMORY_H */