static void curl_multi_read(BDRVCURLState *s)
{
    int msgs_in_queue;

    /* Try to find done transfers, so we can free the easy
     * handle again. */
    do {
        CURLMsg *msg;
        msg = curl_multi_info_read(s->multi, &msgs_in_queue);

        if (!msg)
            break;
        if (msg->msg == CURLMSG_NONE)
            break;

        switch (msg->msg) {
            case CURLMSG_DONE:
            {
                CURLState *state = NULL;
                curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, (char**)&state);

                /* ACBs for successful messages get completed in curl_read_cb */
                if (msg->data.result != CURLE_OK) {
                    int i;
                    for (i = 0; i < CURL_NUM_ACB; i++) {
                        CURLAIOCB *acb = state->acb[i];

                        if (acb == NULL) {
                            continue;
                        }

                        acb->common.cb(acb->common.opaque, -EIO);
                        qemu_aio_release(acb);
                        state->acb[i] = NULL;
                    }
                }

                curl_clean_state(state);
                break;
            }
            default:
                msgs_in_queue = 0;
                break;
        }
    } while(msgs_in_queue);
}
Unknown