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list: add spa_list_is_initialized()

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This function can be used to test if a list has been initialized.
This commit is contained in:
Thomas Weißschuh 2022-08-23 23:46:50 +02:00 • committed by Wim Taymans
parent f4ad9fc90c
commit b23b0e6125
1 changed files with 5 additions and 0 deletions
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5
spa/include/spa/utils/list.h
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@ -51,6 +51,11 @@ static inline void spa_list_init(struct spa_list *list)
*list = SPA_LIST_INIT(list); *list = SPA_LIST_INIT(list);
} }
static inline int spa_list_is_initialized(struct spa_list *list)
{
return !!list->prev;
}
#define spa_list_is_empty(l) ((l)->next == (l)) #define spa_list_is_empty(l) ((l)->next == (l))
static inline void spa_list_insert(struct spa_list *list, struct spa_list *elem) static inline void spa_list_insert(struct spa_list *list, struct spa_list *elem)