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/**
* @file hash.h
* Hash table implementation that allows using memory pools for storage as well as using
* shared memory for this purpose
*/
#ifndef RSPAMD_HASH_H
#define RSPAMD_HASH_H
#include "config.h"
struct rspamd_lru_hash_s;
typedef struct rspamd_lru_hash_s rspamd_lru_hash_t;
typedef struct rspamd_lru_element_s {
gpointer data;
gpointer key;
time_t store_time;
guint ttl;
rspamd_lru_hash_t *hash;
GList *link;
} rspamd_lru_element_t;
/**
* Create new lru hash
* @param maxsize maximum elements in a hash
* @param maxage maximum age of elemnt
* @param hash_func pointer to hash function
* @param key_equal_func pointer to function for comparing keys
* @return new rspamd_hash object
*/
rspamd_lru_hash_t * rspamd_lru_hash_new (
gint maxsize,
gint maxage,
GDestroyNotify key_destroy,
GDestroyNotify value_destroy);
/**
* Create new lru hash
* @param maxsize maximum elements in a hash
* @param maxage maximum age of elemnt
* @param hash_func pointer to hash function
* @param key_equal_func pointer to function for comparing keys
* @return new rspamd_hash object
*/
rspamd_lru_hash_t * rspamd_lru_hash_new_full (
gint maxsize,
gint maxage,
GDestroyNotify key_destroy,
GDestroyNotify value_destroy,
GHashFunc hfunc,
GEqualFunc eqfunc);
/**
* Lookup item from hash
* @param hash hash object
* @param key key to find
* @return value of key or NULL if key is not found
*/
gpointer rspamd_lru_hash_lookup (rspamd_lru_hash_t *hash,
gconstpointer key,
time_t now);
/**
* Insert item in hash
* @param hash hash object
* @param key key to insert
* @param value value of key
*/
void rspamd_lru_hash_insert (rspamd_lru_hash_t *hash,
gpointer key,
gpointer value,
time_t now,
guint ttl);
/**
* Remove lru hash
* @param hash hash object
*/
void rspamd_lru_hash_destroy (rspamd_lru_hash_t *hash);
/**
* Get hash table for this lru hash (use rspamd_lru_element_t as data)
*/
GHashTable *rspamd_lru_hash_get_htable (rspamd_lru_hash_t *hash);
/**
* Get expire queue for this lru hash (use rspamd_lru_element_t as data)
*/
GQueue *rspamd_lru_hash_get_queue (rspamd_lru_hash_t *hash);
#endif
/*
* vi:ts=4
*/
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