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add show_alloc_mem

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tomoron
2024-11-30 23:44:55 +01:00
parent 59b60a0bd3
commit fd59310dad
9 changed files with 292 additions and 35 deletions
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39
srcs/malloc.c
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@ -6,7 +6,7 @@
/* By: tomoron <tomoron@student.42angouleme.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/11/23 17:19:59 by tomoron #+# #+# */
/* Updated: 2024/11/29 19:00:29 by tomoron ### ########.fr */
/* Updated: 2024/11/30 18:01:25 by tomoron ### ########.fr */
/* */
/* ************************************************************************** */
@ -15,6 +15,8 @@
#include <errno.h>
#include <string.h>
t_allocations g_allocs;
void *get_memory(size_t size)
{
void *ptr;
@ -30,18 +32,6 @@ void *get_memory(size_t size)
return (ptr);
}
void *allocate_memory(size_t size, t_mem_bloc **bloc)
{
t_mem_bloc *new;
new = get_memory(size + sizeof(t_mem_bloc));
if (!new)
return (0);
new->next = *bloc;
*bloc = new;
return ((char *)new + sizeof(t_mem_bloc));
}
t_alloc *reserve_addr(t_alloc *addr, size_t size, t_alloc *prev,
t_mem_bloc *bloc)
{
@ -72,12 +62,13 @@ t_alloc *get_suitable_addr_in_bloc(t_mem_bloc *bloc, size_t size)
space_left = bloc->space_left;
while (tmp->next)
{
free_space = (tmp->next - tmp) - (tmp->size + sizeof(t_alloc));
free_space = ((unsigned long)tmp->next - (unsigned long)tmp) - (tmp->size + sizeof(t_alloc));
if (free_space >= size + sizeof(t_alloc))
return (reserve_addr(
(void *)((char *)tmp->next + tmp->size + sizeof(t_alloc)),
size, tmp, bloc));
space_left -= free_space;
tmp = tmp->next;
}
if (space_left >= size + sizeof(t_alloc))
return (reserve_addr(
@ -133,21 +124,17 @@ void *pre_allocated(size_t size, t_mem_bloc **bloc, int is_small)
void *ft_malloc(size_t size)
{
t_mem_bloc *new;
if (size <= TINY_MALLOC)
return (pre_allocated(size, &(g_allocs.tiny), 0));
else if (size <= SMALL_MALLOC)
return (pre_allocated(size, &(g_allocs.small), 1));
else
return (allocate_memory(size, &(g_allocs.large)));
}
int main(void)
{
void *ptr;
void *ptr2;
ptr = ft_malloc(10);
ptr2 = ft_malloc(2000);
printf("%p\n", ptr);
printf("%p\n", ptr2);
new = get_memory(size + sizeof(t_mem_bloc));
if (!new)
return (0);
new->next = g_allocs.large;
g_allocs.large = new;
return ((char *)new + sizeof(t_mem_bloc));
}