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[v2,2/6] queue: Add macro for incremental traversal

Message ID 147342619781.13303.6764601612299320734.stgit@fimbulvetr.bsc.es
State New
Headers show

Commit Message

Lluís Vilanova Sept. 9, 2016, 1:03 p.m. UTC 
Adds macro QTAILQ_FOREACH_CONTINUE to support incremental list
traversal.

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
---
 include/qemu/queue.h |    5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/include/qemu/queue.h b/include/qemu/queue.h
index c2b6c81..4d57166 100644
--- a/include/qemu/queue.h
+++ b/include/qemu/queue.h
@@ -414,6 +414,11 @@  struct {                                                                \
                 (var);                                                  \
                 (var) = ((var)->field.tqe_next))
 
+#define QTAILQ_FOREACH_CONTINUE(var, field)                             \
+        for ((var) = ((var)->field.tqe_next);                           \
+                (var);                                                  \
+                (var) = ((var)->field.tqe_next))
+
 #define QTAILQ_FOREACH_SAFE(var, head, field, next_var)                 \
         for ((var) = ((head)->tqh_first);                               \
                 (var) && ((next_var) = ((var)->field.tqe_next), 1);     \