summaryrefslogtreecommitdiff
path: root/misc
diff options
context:
space:
mode:
Diffstat (limited to 'misc')
-rw-r--r--misc/sys/queue.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/misc/sys/queue.h b/misc/sys/queue.h
index b0e6b38c19..daf4553d33 100644
--- a/misc/sys/queue.h
+++ b/misc/sys/queue.h
@@ -271,6 +271,14 @@ struct { \
(var); \
(var) = ((var)->field.stqe_next))
+#define STAILQ_CONCAT(head1, head2) do { \
+ if (!STAILQ_EMPTY((head2))) { \
+ *(head1)->stqh_last = (head2)->stqh_first; \
+ (head1)->stqh_last = (head2)->stqh_last; \
+ STAILQ_INIT((head2)); \
+ } \
+} while (/*CONSTCOND*/0)
+
/*
* Singly-linked Tail queue access methods.
*/
@@ -434,6 +442,15 @@ struct { \
(var); \
(var) = (*(((struct headname *)((var)->field.tqe_prev))->tqh_last)))
+#define TAILQ_CONCAT(head1, head2, field) do { \
+ if (!TAILQ_EMPTY(head2)) { \
+ *(head1)->tqh_last = (head2)->tqh_first; \
+ (head2)->tqh_first->field.tqe_prev = (head1)->tqh_last; \
+ (head1)->tqh_last = (head2)->tqh_last; \
+ TAILQ_INIT((head2)); \
+ } \
+} while (/*CONSTCOND*/0)
+
/*
* Tail queue access methods.
*/