[dpdk-dev] [PATCH 1/2] eal: add stailq safe iterator macro
Sergio Gonzalez Monroy
sergio.gonzalez.monroy at intel.com
Fri Jul 22 18:01:17 CEST 2016
Removing/freeing elements elements within a STAILQ_FOREACH loop
is not safe. FreeBSD defines STAILQ_FOREACH_SAFE macro, which permits
these operations safely.
This patch defines this macro for Linux systems, where it is not defined.
Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy at intel.com>
---
NOTE: This patch is based on top of:
http://dpdk.org/dev/patchwork/patch/14995/
lib/librte_eal/common/include/rte_tailq.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/lib/librte_eal/common/include/rte_tailq.h b/lib/librte_eal/common/include/rte_tailq.h
index cc3c0f1..bba2835 100644
--- a/lib/librte_eal/common/include/rte_tailq.h
+++ b/lib/librte_eal/common/include/rte_tailq.h
@@ -163,6 +163,13 @@ void __attribute__((constructor, used)) tailqinitfn_ ##t(void) \
(var) = (tvar))
#endif
+#ifndef SLIST_FOREACH_SAFE
+#define SLIST_FOREACH_SAFE(var, head, field, tvar) \
+ for ((var) = SLIST_FIRST((head)); \
+ (var) && ((tvar) = SLIST_NEXT((var), field), 1); \
+ (var) = (tvar))
+#endif
+
#ifdef __cplusplus
}
#endif
--
2.4.11
More information about the dev
mailing list