85 lines
3 KiB
C
85 lines
3 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* bonus_utils.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: thrieg <thrieg@student.42mulhouse.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/11/28 16:42:13 by thrieg #+# #+# */
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/* Updated: 2025/12/13 04:42:15 by thrieg ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../includes/ft_malloc.h"
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#include "../libft/ft_printf/ft_printf.h"
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// bytes_per_line has to be a power of 2
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static void hexdump_block(void *addr, size_t size, size_t bytes_per_Line)
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{
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unsigned char *p = (unsigned char *)addr;
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uintptr_t start = (uintptr_t)p;
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uintptr_t end = start + size;
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// align down to bytes_per_Line bytes
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uintptr_t line_start = start & ~(uintptr_t)(bytes_per_Line - 1);
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while (line_start < end)
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{
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ft_printf("%p: ", (void *)line_start);
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for (size_t i = 0; i < bytes_per_Line; ++i)
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{
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uintptr_t pos = line_start + (uintptr_t)i;
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if (pos < start || pos >= end)
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{
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// outside the block; print spaces to keep alignment
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ft_printf(" ");
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}
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else
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{
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unsigned char byte = *(unsigned char *)pos;
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ft_printf("%02x ", (unsigned int)byte);
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}
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}
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ft_printf("\n");
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line_start += bytes_per_Line;
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}
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}
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void print_zone(t_zone *zone, bool hexdump_free_zones)
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{
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ft_printf("--------------------------------\n");
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ft_printf("new %s zone:\n", zone->type == E_TINY ? "tiny" : (zone->type == E_SMALL ? "small" : "large"));
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ft_printf("size: %u\n", (unsigned int)zone->size);
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ft_printf("--------------------------------\n");
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char *zone_end = (char *)zone + zone->size;
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t_header *header = (t_header *)(zone + 1);
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while ((char *)header + sizeof(t_header) <= zone_end)
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{
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ft_printf("--------------------------------\n");
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ft_printf("new %s header:\n", header->occupied ? "allocated" : "free");
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ft_printf("size: %u\n", (unsigned int)header->size);
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ft_printf("--------------------------------\n");
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if (header->occupied || hexdump_free_zones)
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hexdump_block(header + 1, header->size, 16);
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header = (t_header *)((char *)(header + 1) + header->size);
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}
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}
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void print_all_zones(t_zone *first_zone, bool hexdump_free_zones)
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{
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while (first_zone)
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{
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print_zone(first_zone, hexdump_free_zones);
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first_zone = first_zone->next;
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}
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}
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void show_alloc_mem_ex(bool hexdump_free_zones)
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{
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print_all_zones(g_state.tiny_zone, hexdump_free_zones);
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print_all_zones(g_state.small_zone, hexdump_free_zones);
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print_all_zones(g_state.large_zone, hexdump_free_zones);
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}
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