#include <urcu-call-rcu.h>
struct rcu_ht_node {
+ /* cache-hot for iteration */
struct rcu_ht_node *next;
- void *key;
- size_t key_len;
- unsigned long hash;
unsigned long reverse_hash;
+ void *key;
+ unsigned int key_len;
unsigned int dummy;
+ /* cache-cold for iteration */
struct rcu_head head;
};
/* Call with rcu_read_lock held. */
void ht_add(struct rcu_ht *ht, struct rcu_ht_node *node);
-/* Call with rcu_read_lock held. */
-int ht_add_unique(struct rcu_ht *ht, struct rcu_ht_node *node);
+/*
+ * Call with rcu_read_lock held.
+ * Returns the node added upon success.
+ * Returns the unique node already present upon failure. If ht_add_unique fails,
+ * the node passed as parameter should be freed by the caller.
+ */
+struct rcu_ht_node *ht_add_unique(struct rcu_ht *ht, struct rcu_ht_node *node);
/* Call with rcu_read_lock held. */
int ht_remove(struct rcu_ht *ht, struct rcu_ht_node *node);