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-rw-r--r--source4/include/dlinklist.h27
-rw-r--r--source4/lib/ldb/include/dlinklist.h14
2 files changed, 37 insertions, 4 deletions
diff --git a/source4/include/dlinklist.h b/source4/include/dlinklist.h
index d50a46c5d4..176c138aaf 100644
--- a/source4/include/dlinklist.h
+++ b/source4/include/dlinklist.h
@@ -21,10 +21,6 @@
/* To use these macros you must have a structure containing a next and
prev pointer */
-struct dlist_item {
- struct dlist_item *prev, *next;
- void *ptr;
-};
/* hook into the front of the list */
#define DLIST_ADD(list, p) \
@@ -88,3 +84,26 @@ do { \
if (p->next) p->next->prev = p; \
}\
} while (0)
+
+/* demote an element to the end of the list, needs a tmp pointer */
+#define DLIST_DEMOTE(list, p, tmp) \
+do { \
+ DLIST_REMOVE(list, p); \
+ DLIST_ADD_END(list, p, tmp); \
+} while (0)
+
+/* concatenate two lists - putting all elements of the 2nd list at the
+ end of the first list */
+#define DLIST_CONCATENATE(list1, list2, type) \
+do { \
+ if (!(list1)) { \
+ (list1) = (list2); \
+ } else { \
+ type tmp; \
+ for (tmp = (list1); tmp->next; tmp = tmp->next) ; \
+ tmp->next = (list2); \
+ if (list2) { \
+ (list2)->prev = tmp; \
+ } \
+ } \
+} while (0)
diff --git a/source4/lib/ldb/include/dlinklist.h b/source4/lib/ldb/include/dlinklist.h
index a39007375f..176c138aaf 100644
--- a/source4/lib/ldb/include/dlinklist.h
+++ b/source4/lib/ldb/include/dlinklist.h
@@ -71,6 +71,20 @@ do { \
} \
} while (0)
+/* insert 'p' after the given element 'el' in a list. If el is NULL then
+ this is the same as a DLIST_ADD() */
+#define DLIST_ADD_AFTER(list, p, el) \
+do { \
+ if (!(list) || !(el)) { \
+ DLIST_ADD(list, p); \
+ } else { \
+ p->prev = el; \
+ p->next = el->next; \
+ el->next = p; \
+ if (p->next) p->next->prev = p; \
+ }\
+} while (0)
+
/* demote an element to the end of the list, needs a tmp pointer */
#define DLIST_DEMOTE(list, p, tmp) \
do { \