util/list: Add C99-based iterator macros
v2: Use LIST_ENTRY instead of container_of in iterators
Acked-by: Connor Abbott <cwabbott0@gmail.com>
Reviewed-by: Rob Clark <robclark@freedesktop.org>
diff --git a/src/util/list.h b/src/util/list.h
index 191030c..287a494 100644
--- a/src/util/list.h
+++ b/src/util/list.h
@@ -143,4 +143,38 @@
&pos->member != (head); \
pos = container_of(pos->member.prev, pos, member))
+#define list_for_each_entry(type, pos, head, member) \
+ for (type *pos = LIST_ENTRY(type, (head)->next, member); \
+ &pos->member != (head); \
+ pos = LIST_ENTRY(type, pos->member.next, member))
+
+#define list_for_each_entry_safe(type, pos, head, member) \
+ for (type *pos = LIST_ENTRY(type, (head)->next, member), \
+ *__next = LIST_ENTRY(type, pos->member.next, member); \
+ &pos->member != (head); \
+ pos = __next, \
+ __next = LIST_ENTRY(type, __next->member.next, member))
+
+#define list_for_each_entry_rev(type, pos, head, member) \
+ for (type *pos = LIST_ENTRY(type, (head)->prev, member); \
+ &pos->member != (head); \
+ pos = LIST_ENTRY(type, pos->member.prev, member))
+
+#define list_for_each_entry_safe_rev(type, pos, head, member) \
+ for (type *pos = LIST_ENTRY(type, (head)->prev, member), \
+ *__prev = LIST_ENTRY(type, pos->member.prev, member); \
+ &pos->member != (head); \
+ pos = __prev, \
+ __prev = LIST_ENTRY(type, __prev->member.prev, member))
+
+#define list_for_each_entry_from(type, pos, start, head, member) \
+ for (type *pos = LIST_ENTRY(type, (start), member); \
+ &pos->member != (head); \
+ pos = LIST_ENTRY(type, pos->member.next, member))
+
+#define list_for_each_entry_from_rev(type, pos, start, head, member) \
+ for (type *pos = LIST_ENTRY(type, (start), member); \
+ &pos->member != (head); \
+ pos = LIST_ENTRY(type, pos->member.prev, member))
+
#endif /*_UTIL_LIST_H_*/