writev_port_etc
status_t writev_port_etc(port_id id, int32 msgCode, const iovec *msgVecs,
return writev_port_etc(id, msgCode, &vec, 1, bufferSize, 0, 0);
return writev_port_etc(id, msgCode, &vec, 1, bufferSize, flags, timeout);
status_t status = writev_port_etc(port, messageCode, &vec, 1, bufferSize,
status_t status = writev_port_etc(port, messageCode, vecs, vecCount,
status = writev_port_etc(port, code, vecs, 2, length, flags, timeout);