63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* malloc_internal.h :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/02/17 23:00:24 by jhalford #+# #+# */
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/* Updated: 2017/03/01 12:03:35 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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#ifndef MALLOC_INTERNAL_H
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# define MALLOC_INTERNAL_H
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# define M_NTINY (64)
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# define M_NSMALL (1024)
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# define M_PAGEALIGN(x) ((x / getpagesize() + 1) * getpagesize())
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# define M_TINYCHUNK (M_PAGEALIGN(101 * M_NTINY))
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# define M_SMALLCHUNK (M_PAGEALIGN(101 * M_NSMALL))
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# define M_MAGIC 1234567
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# define M_CHUNKHEAD (sizeof(t_chunk) - alignof(t_chunk))
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# define M_NODEHEAD (sizeof(t_node) - alignof(t_node))
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# define M_ISTINY(x) (x < (M_NTINY + 1))
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# define M_ISSMALL(x) (!M_TINY(x) && !M_LARGE(x))
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# define M_ISLARGE(x) (M_SMALL < x)
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#include "libft.h"
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#include <sys/mman.h>
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#include <stdalign.h>
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typedef struct s_chunk {
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struct s_chunk *next;
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} t_chunk;
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typedef struct s_node {
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struct s_node *next;
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size_t size;
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int isfree:1;
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} t_node;
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enum e_zones {
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M_TINY,
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M_SMALL,
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M_LARGE,
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M_ZONES_MAX,
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};
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extern t_chunk *g_zones[M_ZONES_MAX];
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#include "malloc.h"
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t_chunk *get_zone(size_t size);
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t_node *find_node_firstfit(t_chunk *chunk, size_t size);
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t_node *find_prev_node(t_chunk *zone, t_node *node);
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int split_node(t_node *node, size_t size);
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void show_free_mem(void);
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void print_node(char fg[7], t_node *node);
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void error_mmap(void);
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void error_free_notalloc(void *ptr);
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#endif
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