On Mon, Oct 07, 2013 at 10:48:30AM +0200, Michal Privoznik wrote:
> On 07.10.2013 07:20, Hongwei Bi wrote:
> > I created a storage volume(eg: test) from a storage pool(eg:vg10) using
> > the following command:"virsh vol-create-as --pool vg10 --name test --capacity 300M."
> > When I re-executed the above command, the output was as the following:
> > "error: Failed to create vol test
> > error: Storage volume not found: storage vol 'test' already exists"
> >
> > I think the output "Storage volume not found" is not appropriate. Because in fact storage
> > vol test has been found at this time. And then I think virErrorNumber should includes
> > VIR_ERR_STORAGE_EXIST which can also be used elsewhere. So I make this patch. The result
> > is as following:
> > "error: Failed to create vol test
> > error: storage volume 'test' exists already"
> >
> > ---
> > include/libvirt/virterror.h | 1 +
> > src/storage/storage_driver.c | 4 ++--
> > src/util/virerror.c | 6 ++++++
> > 3 files changed, 9 insertions(+), 2 deletions(-)
> >
> > diff --git a/include/libvirt/virterror.h b/include/libvirt/virterror.h
> > index c1960c8..28ef30a 100644
> > --- a/include/libvirt/virterror.h
> > +++ b/include/libvirt/virterror.h
> > @@ -296,6 +296,7 @@ typedef enum {
> > VIR_ERR_ACCESS_DENIED = 88, /* operation on the object/resource
> > was denied */
> > VIR_ERR_DBUS_SERVICE = 89, /* error from a dbus service */
> > + VIR_ERR_STORAGE_EXIST = 90, /* the storage vol already exist */
I'd suggest this should be VIR_ERR_STORAGE_VOL_EXISTS.
>
> What about instead of inventing new error code re-use the old VIR_ERR_OPERATION_FAILED? Something like we have in virDomainObjListAddLocked:
>
> if (STRNEQ(vm->def->name, def->name)) {
> virUUIDFormat(vm->def->uuid, uuidstr);
> virReportError(VIR_ERR_OPERATION_FAILED,
> _("domain '%s' is already defined with uuid %s"),
> vm->def->name, uuidstr);
> goto error;
> }
I'd actually suggest that we should add a new error code for domains
and other object types too. I think it is useful to be explicit about
duplicate / clashing names/ids.
Regards,
Daniel
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