On 10/21/2013 02:14 PM, Michal Privoznik wrote: > On 18.10.2013 07:42, Chen Hanxiao wrote: >> From: Chen Hanxiao <chenhanx...@cn.fujitsu.com> >> >> Daneil's suggestion about flag <shareable/> and <readonly/> as follow:
s/Daneil/Daniel/
>> - Exclusive read-write. This is the default
>> - Shared read-write. This is the <shareable/> flag
>> - Shared read-only. This is the <readonly/> flag
>>
>>
>> - if (vshCommandOptBool(cmd, "shareable"))
>> + if (!mode && vshCommandOptBool(cmd, "shareable"))
>> virBufferAddLit(&buf, " <shareable/>\n");
>>
>
> - if (vshCommandOptBool(cmd, "shareable"))
> + if (vshCommandOptBool(cmd, "shareable")) {
> + if (mode) {
> + vshError(ctl, "%s", _("--shareable and --mode are mutually
> exclusive"));
> + goto cleanup;
> + }
> virBufferAddLit(&buf, " <shareable/>\n");
> + }
I don't think either of these approaches are needed. If you make
--shareable an undocumented alias of --mode=shareable, then the alias
handling code will already guarantee that only one of the two spellings
appears, and you don't have to do any screening here.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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