change default hash function for balancer states hashtable

yanet-platform · Mar 26, 2024 · 0e36f44 · 0e36f44
1 parent d58eb9d
commit 0e36f44
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Showing 2 changed files with 8 additions and 1 deletion.
diff --git a/dataplane/globalbase.h b/dataplane/globalbase.h
@@ -81,7 +81,7 @@ using wan_ht = hashtable_mod_spinlock_dynamic<nat64stateful_wan_key, nat64statef
 
 namespace balancer
 {
-using state_ht = hashtable_mod_spinlock_dynamic<balancer_state_key_t, balancer_state_value_t, 16>;
+using state_ht = hashtable_mod_spinlock_dynamic<balancer_state_key_t, balancer_state_value_t, 16, dataplane::calculate_hash_city<balancer_state_key_t>>;
 }
 
 class atomic

diff --git a/dataplane/hashtable.h b/dataplane/hashtable.h
@@ -15,6 +15,7 @@
 
 #include "common.h"
 
+#include "ext/city.h"
 #include "ext/murmurhash3.h"
 #include "ext/xxhash32.h"
 
@@ -73,6 +74,12 @@ inline uint32_t calculate_hash_xxh32(const key_t& key)
 	return XXHash32::hash(&key, sizeof(key), 19);
 }
 
+template<typename key_t>
+inline uint32_t calculate_hash_city(const key_t& key)
+{
+	return CityHash32((char*)&key, sizeof(key));
+}
+
 class spinlock_t final
 {
 public: