tls13_record_send
ssize_t tls13_record_send(struct tls13_record *_rec, tls_write_cb _wire_write,
if ((ret = tls13_record_send(rl->wrec, rl->cb.wire_write,
if ((ret = tls13_record_send(rl->wrec, rl->cb.wire_write, rl->cb_arg)) <= 0)