From: Ben Pfaff <b...@ovn.org>
Signed-off-by: Ben Pfaff <b...@ovn.org>
---
lib/simap.c | 15 ++++++++++++++-
lib/simap.h | 1 +
2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/lib/simap.c b/lib/simap.c
index d634f8ed9eea..f404ece67703 100644
--- a/lib/simap.c
+++ b/lib/simap.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2009, 2010, 2011, 2012, 2017 Nicira, Inc.
+ * Copyright (c) 2009, 2010, 2011, 2012, 2017, 2019 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -242,6 +242,19 @@ simap_equal(const struct simap *a, const struct simap *b)
return true;
}
+uint32_t
+simap_hash(const struct simap *simap)
+{
+ uint32_t hash = 0;
+
+ const struct simap_node *node;
+ SIMAP_FOR_EACH (node, simap) {
+ hash ^= hash_int(node->data,
+ hash_name(node->name, strlen(node->name)));
+ }
+ return hash;
+}
+
static size_t
hash_name(const char *name, size_t length)
{
diff --git a/lib/simap.h b/lib/simap.h
index 5b4a2f39dca3..5e646e660782 100644
--- a/lib/simap.h
+++ b/lib/simap.h
@@ -70,6 +70,7 @@ bool simap_find_and_delete(struct simap *, const char *);
const struct simap_node **simap_sort(const struct simap *);
bool simap_equal(const struct simap *, const struct simap *);
+uint32_t simap_hash(const struct simap *);
#ifdef __cplusplus
}
--
2.7.4
_______________________________________________
dev mailing list
d...@openvswitch.org
https://mail.openvswitch.org/mailman/listinfo/ovs-dev
