memcached_result_key_value, memcached_result_key_length,
memcached_result_value, memcached_result_length,
memcached_result_flags, memcached_result_cas
memcached_result_key_value, memcached_result_key_length,
memcached_result_value, memcached_result_length,
memcached_result_flags, memcached_result_cas