Il 23/08/2013 15:30, Lei Li ha scritto:
> - if (ret < 0) {
> - bytes_transferred += total_sent;
> - return ret;
> - }
> -
> qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
> total_sent += 8;
> bytes_transferred += total_sent;
>
> - return total_sent;
> + return qemu_file_get_error(f);
No, this will never make ram_save_iterate (and thus
qemu_savevm_state_iterate) return a positive, non-zero value. Thus:
ret = qemu_file_get_error(f);
if (ret < 0) {
return ret;
}
return total_sent;
If you look at the code, you can see that it never returns zero.
Probably it should do something like
bytes_transferred += total_sent;
/* Do not count these 8 bytes into total_sent, so that we can
* return 0 if no page had been dirtied.
*/
qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
bytes_transferred += 8;
and then proceed as above with "ret = qemu_file_get_error(f)".
Paolo
