62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* insert_node.c :+: :+: :+: */
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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 12:28:15 by jhalford #+# #+# */
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/* Updated: 2017/03/01 12:04:08 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "malloc_internal.h"
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t_node *find_node_firstfit(t_chunk *chunk, size_t size)
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{
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t_node *node;
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if (!chunk)
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return (NULL);
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node = (t_node*)(chunk + 1);
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while (node && !(node->isfree && node->size >= size))
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{
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node = node->next;
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}
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return (node);
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}
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int split_node(t_node *node, size_t size)
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{
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t_node *new_node;
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new_node = (void*)node + size;
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new_node->next = node->next;
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new_node->size = node->next - new_node;
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new_node->isfree = 1;
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node->next = new_node;
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node->size -= new_node->size;
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node->isfree = 0;
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return (0);
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}
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t_node *find_prev_node(t_chunk *zone, t_node *node)
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{
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t_node *n;
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t_node *prev;
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while (zone)
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{
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n = (t_node*)(zone + 1);
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prev = n;
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while (n)
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{
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if (n == node)
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return (prev);
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prev = n;
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n = n->next;
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}
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zone = zone->next;
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}
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return (NULL);
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}
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