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#include "options.h"
#include "dbutil.h"
#include "list.h"
void list_append(m_list *list, void *item) {
m_list_elem *elem;
elem = m_malloc(sizeof(*elem));
elem->item = item;
elem->list = list;
elem->next = NULL;
if (!list->first) {
list->first = elem;
elem->prev = NULL;
} else {
elem->prev = list->last;
list->last->next = elem;
}
list->last = elem;
}
m_list * list_new() {
m_list *ret = m_malloc(sizeof(m_list));
ret->first = ret->last = NULL;
return ret;
}
void * list_remove(m_list_elem *elem) {
void *item = elem->item;
m_list *list = elem->list;
if (list->first == elem)
{
list->first = elem->next;
}
if (list->last == elem)
{
list->last = elem->prev;
}
if (elem->prev)
{
elem->prev->next = elem->next;
}
if (elem->next)
{
elem->next->prev = elem->prev;
}
m_free(elem);
return item;
}
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