[Libvir] [PATCH] libvirt.c: warning: dereferencing type-punned pointer will break strict-aliasing rules
Daniel P. Berrange
berrange at redhat.com
Thu Mar 8 14:50:56 UTC 2007
On Wed, Mar 07, 2007 at 07:25:59AM +0000, Mark McLoughlin wrote:
> On Tue, 2007-03-06 at 22:52 +0000, Daniel P. Berrange wrote:
>
> > This feels kind of sick - inventing a common shared struct between the
> > two driver tables, when there isn't any common stuff to share :-(
>
> Yeah. Although, as a way to share more code between domains and
> networks (especially in qemud), it might make sense.
>
> > Looking at the code, IMHO, the whole approach of iterating over the
> > driver
> > table soo many times is just wrong, when we can simply have an integer
> > count recording how many drivers are registered. This eliminates both
> > for(;;) loops, and reduces the amount of code to the point where I
> > don't
> > think there's anything to be gained by having a generic
> > _virDriverRegister
> > with all the type-casting this entails.
>
> That sounds fine.
>
> > @@ -203,7 +166,21 @@ _virRegisterDriver(void *driver, int isN
> > int
> > virRegisterNetworkDriver(virNetworkDriverPtr driver)
> > {
> > - return _virRegisterDriver(driver, 1);
> > + if (virInitialize() < 0)
> > + return -1;
> > +
> > + if (driver == NULL) {
> > + virLibConnError(NULL, VIR_ERR_INVALID_ARG, __FUNCTION__);
> > + return(-1);
> > + }
> > +
> > + if (virNetworkDriverTabCount >= (sizeof(virNetworkDriverTab)/sizeof(virNetworkDriverPtr))) {
>
> Just use MAX_DRIVERS?
Committed with this change applied.
I also fixed virConnectOpenReadonly which was not passing the readonly
flag down to the network driver.
Dan.
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