In this case we have enqueued other data _and_ the current chunk already.
if (!ret) { /* still data left in the queue */
ret = cq_force_enqueue(sc->cq, buf, len);
assert(ret >= 0);
if (!ret) { /* still data left in the queue */
ret = cq_force_enqueue(sc->cq, buf, len);
assert(ret >= 0);
}
ret = write_nonblock(sc->fd, buf, len);
if (ret == -ERRNO_TO_PARA_ERROR(ECONNREFUSED))
}
ret = write_nonblock(sc->fd, buf, len);
if (ret == -ERRNO_TO_PARA_ERROR(ECONNREFUSED))