diff options
Diffstat (limited to 'include/qemu/queue.h')
| -rw-r--r-- | include/qemu/queue.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/qemu/queue.h b/include/qemu/queue.h index a98eb3ad79..c602797652 100644 --- a/include/qemu/queue.h +++ b/include/qemu/queue.h @@ -104,6 +104,19 @@ struct { \ (head)->lh_first = NULL; \ } while (/*CONSTCOND*/0) +#define QLIST_SWAP(dstlist, srclist, field) do { \ + void *tmplist; \ + tmplist = (srclist)->lh_first; \ + (srclist)->lh_first = (dstlist)->lh_first; \ + if ((srclist)->lh_first != NULL) { \ + (srclist)->lh_first->field.le_prev = &(srclist)->lh_first; \ + } \ + (dstlist)->lh_first = tmplist; \ + if ((dstlist)->lh_first != NULL) { \ + (dstlist)->lh_first->field.le_prev = &(dstlist)->lh_first; \ + } \ +} while (/*CONSTCOND*/0) + #define QLIST_INSERT_AFTER(listelm, elm, field) do { \ if (((elm)->field.le_next = (listelm)->field.le_next) != NULL) \ (listelm)->field.le_next->field.le_prev = \ |