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includes/ft_malloc.h

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+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_malloc.h                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: thrieg < thrieg@student.42mulhouse.fr>     +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/11/17 15:06:51 by thrieg            #+#    #+#             */
+/*   Updated: 2025/11/28 17:24:33 by thrieg           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef FT_MALLOC_H
+#define FT_MALLOC_H
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <pthread.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <stddef.h>
+#include "../libft/ft_hashmap.h"
+#include "../libft/ft_vector.h"
+#include "ft_malloc_public.h"
+
+#define TINY_SIZE_MAX 64
+#define SMALL_SIZE_MAX 4096
+#define ALLIGN_BYTES _Alignof(max_align_t)
+
+typedef enum e_type
+{
+	E_TINY,
+	E_SMALL,
+	E_LARGE
+} t_type;
+
+typedef struct s_zone
+{
+	t_type type;
+	size_t size;
+	struct s_zone *next; // lock g_mut
+	struct s_zone *prev; // lock g_mut
+} t_zone;
+
+typedef struct s_header
+{
+	size_t size;   // lock zone_mut
+	bool occupied; // lock zone_mut
+	t_zone *zone;
+	char padding[8];
+} t_header;
+
+typedef struct s_state
+{
+	t_zone *tiny_zone;	// lock g_mut
+	t_zone *small_zone; // lock g_mut
+	t_zone *large_zone; // lock g_mut, 1 zone per alloc for large
+} t_state;
+
+extern t_state g_state;
+extern pthread_mutex_t g_mut; // never lock this inside a zone mut, only the opposite
+
+void *add_large(size_t size);
+void *add_small(size_t size);
+void *add_tiny(size_t size);
+void *add_page(t_type type);
+
+#endif

includes/ft_malloc_public.h

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+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_malloc_public.h                                 :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: thrieg < thrieg@student.42mulhouse.fr>     +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/11/25 12:31:43 by thrieg            #+#    #+#             */
+/*   Updated: 2025/11/28 18:26:47 by thrieg           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef FT_MALLOC_PUBLIC_H
+#define FT_MALLOC_PUBLIC_H
+
+#include <stddef.h>
+#include <stdbool.h>
+
+void *malloc(size_t size);
+void free(void *ptr);
+void *calloc(size_t nmemb, size_t size);
+void *realloc(void *ptr, size_t size);
+void show_alloc_mem_ex(bool hexdump_free_zones);
+
+#endif