126 lines
3.8 KiB
C
126 lines
3.8 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: 2017/10/08 18:16:21 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 ((size_t)64)
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# define M_NSMALL ((size_t)1024)
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# define M_PAGEALIGN(x) ((x / getpagesize() + 1) * getpagesize()) * 10
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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_CHUNKHEAD (sizeof(t_chunk))
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# define M_NODEHEAD (sizeof(t_node))
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# define M_ISTINY(x) (x < (M_NTINY + 1))
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# define M_ISSMALL(x) (!M_ISTINY(x) && !M_ISLARGE(x))
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# define M_ISLARGE(x) (M_NSMALL < x)
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# define NEXT(node) (node->islast ? NULL : (void*)node + node->size)
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# define FT_ABS(x) (((x) < 0) ? -(x) : x)
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/*
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* DEBUG without malloc
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*/
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# define DP_N(n) ft_putnbr_fd(n, 2)
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# define DP_H(n) ft_putnbr_hex_fd(n, 2)
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# define DP_C(n) ft_putchar_fd(n, 2)
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# define DP_S(n) ft_putstr_fd(n, 2)
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# define DGPID DP_S("===");DP_N(getpid());DP_S("===");
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# define DGW(d) DGPID;d;DP_C('\n')
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# define DGS(s) do { DGW(DP_S(" "s)); } while(0)
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# define DGSN(s, n) do { DGW(DP_S(" "s"=");DP_N(n)); } while(0)
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# define DGSH(s, n) do { DGW(DP_S(" "s"=");DP_H(n)); } while(0)
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# define FG_DEFAULT "\e[0m"
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# define ON_BOLD "\e[1m"
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# define ON_UNDERLINED "\e[4m"
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# define ON_INVERTED "\e[7m"
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# define FG_BLACK "\e[30m"
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# define FG_RED "\e[31m"
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# define FG_GREEN "\e[32m"
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# define FG_YELLOW "\e[33m"
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# define FG_BLUE "\e[34m"
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# define FG_MAGENTA "\e[35m"
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# define FG_CYAN "\e[36m"
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# define BG_BLACK "\e[40m"
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# define BG_RED "\e[41m"
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# define BG_GREEN "\e[42m"
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# define BG_YELLOW "\e[43m"
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# define BG_BLUE "\e[44m"
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# define BG_MAGENTA "\e[45m"
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# define BG_CYAN "\e[46m"
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# define BG_DEFAULT "\e[49m"
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# define FBG_DEFAULT FG_DEFAULT BG_DEFAULT
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#include <sys/mman.h>
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#include <stdalign.h>
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#include <unistd.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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size_t size;
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unsigned int isfree:1;
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unsigned int islast: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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extern volatile int g_malloc_debug;
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/*
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* malloc_debug levels:
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* 1: show chunks after malloc() and free()
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* 2: show chunks before malloc() and free(), notify when coalescing.
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* 3: show mmap() returns
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*/
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#include "malloc.h"
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int ret_free(void *ptr);
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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 *hexdump(void *addr, unsigned int offset, unsigned int size);
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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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int ft_putchar(char c);
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int ft_putchar_fd(char c, int fd);
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int ft_putendl(char const *s);
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int ft_putendl_fd(char const *s, int fd);
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int ft_putstr(char const *s);
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int ft_putstr_fd(char const *s, int fd);
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int ft_putnbr(long n);
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int ft_putnbr_fd(long n, int fd);
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int ft_putnbr_hex(long n);
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int ft_putnbr_hex_fd(long n, int fd);
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int ft_putnbr_loop(long n, int base, int fd);
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#endif
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