/** Default behavior of insertion, single writer/multi writer */
#define RTE_HASH_EXTRA_FLAGS_MULTI_WRITER_ADD 0x02
+/** Flag to support reader writer concurrency */
+#define RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY 0x04
+
/** Signature of key that is stored internally. */
typedef uint32_t hash_sig_t;
void
rte_hash_reset(struct rte_hash *h);
+/**
+ * Return the number of keys in the hash table
+ * @param h
+ * Hash table to query from
+ * @return
+ * - -EINVAL if parameters are invalid
+ * - A value indicating how many keys were inserted in the table.
+ */
+int32_t
+rte_hash_count(const struct rte_hash *h);
+
/**
* Add a key-value pair to an existing hash table.
* This operation is not multi-thread safe
* @param key
* Key to find.
* @param sig
- * Hash value to remove from the hash table.
+ * Precomputed hash value for 'key'.
* @return
* - -EINVAL if the parameters are invalid.
* - -ENOENT if the key is not found.