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Allocator is fully normed

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Maieul BOYER 2024-07-10 17:41:59 +02:00
parent fc969750e4
commit 882d5cb5bb
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11 changed files with 351 additions and 325 deletions
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82
allocator/src/me_alloc/pages.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* pages.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/07/10 16:51:10 by maiboyer #+# #+# */
/* Updated: 2024/07/10 17:25:19 by maiboyer ### ########.fr */
/* */
/* ************************************************************************** */
#include "aq/allocator.h"
#include "aq/internal_vg_funcs.h"
#include "aq/melloc_interal.h"
#include "me/mem/mem.h"
#include "me/types.h"
#include <errno.h>
void *__libc_malloc(t_usize size);
void __libc_free(void *ptr);
t_error alloc_page_list(t_page_list **out)
{
t_page_list *val;
if (out == NULL)
return (ERROR);
val = __libc_malloc(sizeof(*val));
if (val == NULL)
return (ERROR);
mem_set_zero(val, sizeof(*val));
*out = val;
vg_mem_no_access(val, sizeof(*val));
vg_mempool_create_ext(val, MEMPOOL_FLAG_MALLOCLIKE);
return (NO_ERROR);
}
t_error _alloc_new_page_inner(t_usize page_size, t_page_list *list)
{
t_chunk *chunk;
if (list == NULL)
return (ERROR);
vg_mem_defined(list, sizeof(*list));
list->pages[list->len].data = __libc_malloc(page_size);
mem_set_zero(list->pages[list->len].data, page_size);
if (list->pages[list->len].data == NULL)
return (ERROR);
list->pages[list->len].size = page_size;
vg_mempool_alloc(list, list->pages[list->len].data, page_size);
chunk = get_first_block(&list->pages[list->len]);
chunk->used = false;
chunk->size = page_size - sizeof(*chunk) * 2;
vg_mem_no_access(chunk, sizeof(*chunk));
list->len++;
vg_mem_no_access(list, sizeof(*list));
return (NO_ERROR);
}
t_error alloc_new_page(struct s_allocator_melloc *alloc, t_usize page_size)
{
t_page_list *list;
t_page_list *list_bis;
page_size = round_to_pow2(page_size, PAGE_POW_2);
if (alloc->list == NULL && alloc_page_list(&alloc->list))
return (ERROR);
list = alloc->list;
while (list)
{
vg_mem_defined(list, sizeof(*list));
if (list->len != PAGE_LIST_MAX)
break ;
if (list->next == NULL && alloc_page_list(&list->next))
return (vg_mem_no_access(list, sizeof(*list)), ERROR);
list_bis = list;
list = list->next;
vg_mem_no_access(list_bis, sizeof(*list_bis));
}
return (_alloc_new_page_inner(page_size, list));
}