[libvirt] [PATCH] If driver startup fails, dispatch virErrors

[Cole Robinson]

On 12/10/2012 05:23 AM, Daniel P. Berrange wrote:
> On Mon, Dec 10, 2012 at 10:19:35AM +0000, Daniel P. Berrange wrote:
>> On Sat, Dec 08, 2012 at 08:48:55PM -0500, Cole Robinson wrote:
>>> API users won't have any way to interact with the errors since this is
>>> before a connection pointer is available, but the default error handler
>>> at calls VIR_ERROR which gives us a better chance of seeing the issue.
>>> ---
>>>  src/libvirt.c | 1 +
>>>  1 file changed, 1 insertion(+)
>>>
>>> diff --git a/src/libvirt.c b/src/libvirt.c
>>> index 6a7a817..5f8b087 100644
>>> --- a/src/libvirt.c
>>> +++ b/src/libvirt.c
>>> @@ -813,6 +813,7 @@ int virStateInitialize(bool privileged,
>>>              if (virStateDriverTab[i]->initialize(privileged,
>>>                                                   callback,
>>>                                                   opaque) < 0) {
>>> +                virDispatchError(NULL);
>>>                  VIR_ERROR(_("Initialization of %s state driver failed"),
>>>                            virStateDriverTab[i]->name);
>>>                  return -1;
>>
>> Hmm, I kind of thing libvirtd should be the one doing this in
>> its exit paths. Many (all) of the APIs libvirtd uses can raise
>> errors, and we want them disptched if it exits.
> 
> Actually having said that, I believe we don't need todo anything.
> The virDispatchError() function is concerned with invoking the registered
> error callback, which libvirtd has already disabled. The logging of errors
> via VIR_ERROR is done at the point they are reported with virRaiseError.
> 

Indeed there isn't anything to do.

Strange, I could have sworn that this patch was actually making a difference,
but my testing must have been confused.

Thanks,
Cole