Re: [Libguestfs] [libnbd PATCH v2 06/13] api: Add nbd_opt_abort and nbd_aio_opt_abort
On 8/17/20 6:06 AM, Richard W.M. Jones wrote:
On Fri, Aug 14, 2020 at 05:00:25PM -0500, Eric Blake wrote:
> diff --git a/lib/internal.h b/lib/internal.h
> index 5f495fb..03baacd 100644
> --- a/lib/internal.h
> +++ b/lib/internal.h
> @@ -101,6 +101,7 @@ struct nbd_handle {
>
> /* Option negotiation mode. */
> bool opt_mode;
> + uint8_t current_opt;
Be nice to add a comment here about what current_opt can contain,
which would also explain why it has this somewhat unexpected type.
Something like:
+ uint8_t current_opt; /* 0 or NBD_OPT_* */
Sure, makes sense.
(Can it only contain NBD_OPT_ABORT or are other options added in later
patches?)
Correct - later patches add NBD_OPT_ABORT, NBD_OPT_GO, NBD_OPT_LIST, and
NBD_OPT_INFO. I've also thought about, but haven't yet coded anything,
for also giving the user control over NBD_OPT_STARTTLS (for tls=1
connections), NBD_OPT_STRUCTURED_REPLIES (mainly for interoperability
testing), and NBD_OPT_INFO_META_CONTEXT.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org