Module: xenomai-forge
Branch: next
Commit: c67409451cad54f239df28e4a3ddc138fd41054f
URL:
http://git.xenomai.org/?p=xenomai-forge.git;a=commit;h=c67409451cad54f239df28e4a3ddc138fd41054f
Author: Philippe Gerum <r...@xenomai.org>
Date: Sat Jun 28 21:05:23 2014 +0200
boilerplate/list: add safe reverse scanners
---
include/boilerplate/private-list.h | 9 +++++++++
include/boilerplate/shared-list.h | 12 ++++++++++++
2 files changed, 21 insertions(+)
diff --git a/include/boilerplate/private-list.h
b/include/boilerplate/private-list.h
index d1167c2..4e70ac7 100644
--- a/include/boilerplate/private-list.h
+++ b/include/boilerplate/private-list.h
@@ -187,4 +187,13 @@ static inline int pvlist_heading_p(const struct pvholder
*holder,
pos = pvlist_entry(pos->member.prev, \
typeof(*pos), member))
+#define pvlist_for_each_entry_reverse_safe(pos, tmp, list, member) \
+ for (pos = pvlist_entry((list)->head.prev, \
+ typeof(*pos), member), \
+ tmp = pvlist_entry((pos)->member.prev, \
+ typeof(*pos), member); \
+ &(pos)->member != &(list)->head; \
+ pos = tmp, tmp = pvlist_entry((pos)->member.prev, \
+ typeof(*pos), member))
+
#endif /* !_BOILERPLATE_PRIVATE_LIST_H */
diff --git a/include/boilerplate/shared-list.h
b/include/boilerplate/shared-list.h
index 51e1ea4..a98cbe0 100644
--- a/include/boilerplate/shared-list.h
+++ b/include/boilerplate/shared-list.h
@@ -294,6 +294,15 @@ static inline int list_heading_p(const struct holder
*holder,
pos = tmp, tmp = list_entry(__hptr((heap), (pos)->member.next), \
typeof(*pos), member))
+#define __list_for_each_entry_reverse_safe(heap, pos, tmp, list, member) \
+ for (pos = list_entry(__hptr((heap), (list)->head.prev), \
+ typeof(*pos), member), \
+ tmp = list_entry(__hptr((heap), (pos)->member.prev), \
+ typeof(*pos), member); \
+ &(pos)->member != &(list)->head; \
+ pos = tmp, tmp = list_entry(__hptr((heap), (pos)->member.prev), \
+ typeof(*pos), member))
+
#define list_for_each_entry_safe(pos, tmp, list, member) \
__list_for_each_entry_safe(__main_heap, pos, tmp, list, member)
@@ -307,4 +316,7 @@ static inline int list_heading_p(const struct holder
*holder,
#define list_for_each_entry_reverse(pos, list, member) \
__list_for_each_entry_reverse(__main_heap, pos, list, member)
+#define list_for_each_entry_reverse_safe(pos, tmp, list, member) \
+ __list_for_each_entry_reverse_safe(__main_heap, pos, tmp, list, member)
+
#endif /* !_BOILERPLATE_SHARED_LIST_H */
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