77 lines
1.6 KiB
C
77 lines
1.6 KiB
C
//-----------------------------------------------------------------------------
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//
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// Copyright © 2016 Project Golan
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//
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// See "LICENSE" for more information.
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//
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//-----------------------------------------------------------------------------
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//
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// Doubly linked list structure.
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//
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//-----------------------------------------------------------------------------
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#ifndef lithos3__Lth_linklist_h
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#define lithos3__Lth_linklist_h
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#include "Lth_assert.h"
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#include <stddef.h>
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//----------------------------------------------------------------------------|
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// Type Definitions |
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//
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//
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// Lth_LinkList
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//
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typedef struct Lth_LinkList
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{
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struct Lth_LinkList *next, **prev;
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void *owner;
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} Lth_LinkList;
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//----------------------------------------------------------------------------|
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// Static Functions |
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//
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//
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// Lth_LinkListInsert
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//
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static inline void Lth_LinkListInsert(Lth_LinkList *list, void *object,
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Lth_LinkList **head)
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{
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Lth_assert(list != NULL);
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Lth_assert(head != NULL);
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Lth_assert(*head != NULL);
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Lth_LinkList *next = *head;
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if((list->next = next))
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next->prev = &list->next;
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list->prev = head;
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*head = list;
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list->owner = object;
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}
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//
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// Lth_LinkListRemove
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//
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static inline void Lth_LinkListRemove(Lth_LinkList *list)
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{
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Lth_assert(list != NULL);
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Lth_LinkList *next = list->next, **prev = list->prev;
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if(prev && (*prev = next))
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next->prev = prev;
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list->next = NULL;
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list->prev = NULL;
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}
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#endif//lithos3__Lth_linklist_h
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