-static memcached_return_t resolve_names(memcached_server_st& server, char *laddr, size_t laddr_length, char *raddr, size_t raddr_length)
+static memcached_return_t resolve_names(memcached_instance_st& server, char *laddr, size_t laddr_length, char *raddr, size_t raddr_length)