[Minor] Allow explicit deletion from LRU cache

src/libutil/hash.c

@@ -342,6 +342,23 @@ rspamd_lru_hash_lookup (rspamd_lru_hash_t *hash, gconstpointer key, time_t now)
 	return NULL;
 }
 
+gboolean
+rspamd_lru_hash_remove (rspamd_lru_hash_t *hash,
+		gconstpointer key)
+{
+	rspamd_lru_element_t *res;
+
+	res = g_hash_table_lookup (hash->tbl, key);
+
+	if (res != NULL) {
+		rspamd_lru_hash_remove_node (hash, res);
+
+		return TRUE;
+	}
+
+	return FALSE;
+}
+
 void
 rspamd_lru_hash_insert (rspamd_lru_hash_t *hash, gpointer key, gpointer value,
 	time_t now, guint ttl)

src/libutil/hash.h

@@ -53,6 +53,15 @@ rspamd_lru_hash_t * rspamd_lru_hash_new_full (
 gpointer rspamd_lru_hash_lookup (rspamd_lru_hash_t *hash,
 	gconstpointer key,
 	time_t now);
+
+/**
+ * Removes key from LRU cache
+ * @param hash
+ * @param key
+ * @return TRUE if key has been found and removed
+ */
+gboolean rspamd_lru_hash_remove (rspamd_lru_hash_t *hash,
+		gconstpointer key);
 /**
  * Insert item in hash
  * @param hash hash object