some tests and create data structures
This commit is contained in:
5
Makefile
5
Makefile
@ -6,7 +6,7 @@
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# By: tomoron <marvin@42.fr> +#+ +:+ +#+ #
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# By: tomoron <marvin@42.fr> +#+ +:+ +#+ #
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# +#+#+#+#+#+ +#+ #
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# +#+#+#+#+#+ +#+ #
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# Created: 2023/07/28 00:35:01 by tomoron #+# #+# #
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# Created: 2023/07/28 00:35:01 by tomoron #+# #+# #
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# Updated: 2024/11/27 17:41:36 by tomoron ### ########.fr #
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# Updated: 2024/11/27 18:09:19 by tomoron ### ########.fr #
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# #
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# #
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# **************************************************************************** #
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# **************************************************************************** #
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@ -34,6 +34,9 @@ LFT_DIR = libft/
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all: libft_malloc.so
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all: libft_malloc.so
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exec: $(OBJS_DIR) $(OBJS) $(LFT)
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$(CC) -o a.out $(OBJS) $(LFT)
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libft_malloc.so: $(NAME)
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libft_malloc.so: $(NAME)
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ln -sf $(NAME) libft_malloc.so
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ln -sf $(NAME) libft_malloc.so
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@ -6,7 +6,7 @@
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/* By: tomoron <tomoron@student.42angouleme.fr> +#+ +:+ +#+ */
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/* By: tomoron <tomoron@student.42angouleme.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/11/26 16:38:01 by tomoron #+# #+# */
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/* Created: 2024/11/26 16:38:01 by tomoron #+# #+# */
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/* Updated: 2024/11/26 20:17:37 by tomoron ### ########.fr */
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/* Updated: 2024/11/28 20:16:54 by tomoron ### ########.fr */
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/* */
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/* */
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/* ************************************************************************** */
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/* ************************************************************************** */
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@ -18,6 +18,35 @@
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# endif
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# endif
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#include <stddef.h>
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#include <stddef.h>
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void *malloc(size_t size);
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#include <sys/mman.h>
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#include <unistd.h>
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#define TINY_MALLOC_ALL 16384
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#define SMALL_MALLOC_ALL 524288
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#define TINY_MALLOC 1024
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#define SMALL_MALLOC 4096
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typedef struct s_alloc
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{
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size_t size; //8
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struct s_alloc *next; //8
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} t_alloc; //size 16
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typedef struct s_mem_bloc
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{
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t_alloc *first_alloc; //8
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struct s_mem_bloc *next; //8
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} t_mem_bloc; //size 16
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typedef struct s_allocations
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{
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t_mem_bloc *tiny;
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t_mem_bloc *small;
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t_mem_bloc *large;
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} t_allocations;
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void *ft_malloc(size_t size);
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#endif
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#endif
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@ -6,14 +6,71 @@
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/* By: tomoron <tomoron@student.42angouleme.fr> +#+ +:+ +#+ */
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/* By: tomoron <tomoron@student.42angouleme.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/11/23 17:19:59 by tomoron #+# #+# */
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/* Created: 2024/11/23 17:19:59 by tomoron #+# #+# */
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/* Updated: 2024/11/26 20:17:08 by tomoron ### ########.fr */
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/* Updated: 2024/11/28 20:22:55 by tomoron ### ########.fr */
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/* */
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/* */
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/* ************************************************************************** */
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/* ************************************************************************** */
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#include "includes/malloc.h"
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#include "includes/malloc.h"
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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void *malloc(size_t size)
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void *get_memory(size_t size)
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{
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void *ptr;
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t_mem_bloc *bloc_info;
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ptr = mmap(0, size, PROT_WRITE | PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
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if(ptr == MAP_FAILED)
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return(0);
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bloc_info = ptr;
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bloc_info->first_alloc = 0;
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bloc_info->next = 0;
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return(ptr);
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}
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void *allocate_memory(size_t size)
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{
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{
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(void)size;
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(void)size;
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return(0);
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return(0);
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}
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}
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t_mem_bloc *get_mem_bloc(t_mem_bloc **bloc, size_t size)
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{
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t_mem_bloc *tmp;
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}
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void *pre_allocated(size_t size, s_mem_bloc **bloc)
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{
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t_mem_bloc *mem_bloc;
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t_alloc new;
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mem_bloc = get_mem_bloc(bloc, size)
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}
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void *ft_malloc(size_t size)
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{
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static t_allocations allocs;
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if(size <= TINY_ALLOC)
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return(pre_allocated(size, &allocs->tiny));
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else if(size <= SMALL_ALLOC)
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return(pre_allocated(size, &allocs->small));
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else
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return(allocate_memory(size));
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return(0);
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}
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#include <stdlib.h>
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int main(void)
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{
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// void *p1 = malloc(1);
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// void *p2 = malloc(1);
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// void *p3 = malloc(1);
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// (void)p3;
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// printf("%ld\n", p2 - p1);
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}
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