diff options
| author | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-11-25 22:05:37 +0000 |
|---|---|---|
| committer | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-11-25 22:05:37 +0000 |
| commit | 31280d92d1cfd31743ebde611ad48d92239ca9aa (patch) | |
| tree | f525d8f53556300eec6bf95f77a51c1f4f08fced | |
| parent | f3d54fc4948b5525cc15e2a082f0cec8610ec5b4 (diff) | |
Add TAILQ_FOREACH_SAFE (Jan Kiszka)
Add TAILQ iterator that allows to safely remove elements while walking
the list.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5798 c046a42c-6fe2-441c-8c8c-71466251a162
| -rw-r--r-- | sys-queue.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys-queue.h b/sys-queue.h index 3d0773eeb7..ad5c8fb5f8 100644 --- a/sys-queue.h +++ b/sys-queue.h @@ -210,6 +210,11 @@ struct { \ (var); \
(var) = ((var)->field.tqe_next))
+#define TAILQ_FOREACH_SAFE(var, head, field, next_var) \
+ for ((var) = ((head)->tqh_first); \
+ (var) && ((next_var) = ((var)->field.tqe_next), 1); \
+ (var) = (next_var))
+
#define TAILQ_FOREACH_REVERSE(var, head, headname, field) \
for ((var) = (*(((struct headname *)((head)->tqh_last))->tqh_last)); \
(var); \
|