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spa: add safe_reverse function

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This commit is contained in:
Wim Taymans 2020-11-18 15:00:01 +01:00
parent 89cb39badd
commit 935851a6a6
1 changed files with 10 additions and 1 deletions
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11
spa/include/spa/utils/list.h
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@ -106,7 +106,7 @@ static inline void spa_list_remove(struct spa_list *elem)
#define spa_list_for_each(pos, head, member) \
spa_list_for_each_next(pos, head, head, member)
#define spa_list_for_each_reverse(pos, head, member) \
#define spa_list_for_each_reverse(pos, head, member) \
spa_list_for_each_prev(pos, head, head, member)
#define spa_list_for_each_safe_next(pos, tmp, head, curr, member) \
@ -115,9 +115,18 @@ static inline void spa_list_remove(struct spa_list *elem)
!spa_list_is_end(pos, head, member); \
pos = tmp)
#define spa_list_for_each_safe_prev(pos, tmp, head, curr, member) \
for (pos = spa_list_last(curr, __typeof__(*pos), member); \
tmp = spa_list_prev(pos, member), \
!spa_list_is_end(pos, head, member); \
pos = tmp)
#define spa_list_for_each_safe(pos, tmp, head, member) \
spa_list_for_each_safe_next(pos, tmp, head, head, member)
#define spa_list_for_each_safe_reverse(pos, tmp, head, member) \
spa_list_for_each_safe_prev(pos, tmp, head, head, member)
#define spa_list_cursor_start(cursor, head, member) \
spa_list_prepend(head, &(cursor).member)