-static ssize_t io_flush(memcached_server_instance_st *ptr, memcached_return_t *error);
-static void increment_udp_message_id(memcached_server_instance_st *ptr);
+static ssize_t io_flush(memcached_server_write_instance_st ptr,
+ memcached_return_t *error);
+static void increment_udp_message_id(memcached_server_write_instance_st ptr);