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Add TAILQ_FOREACH_SAFE (Jan Kiszka)

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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
This commit is contained in:
aliguori 2008-11-25 22:05:37 +00:00
parent f3d54fc494
commit 31280d92d1
1 changed files with 5 additions and 0 deletions
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5
sys-queue.h
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@ -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); \