[libvirt] python module set-up ignores virInitialize failure
Daniel P. Berrange
berrange at redhat.com
Tue May 18 11:51:13 UTC 2010
On Tue, May 18, 2010 at 11:43:30AM +0100, Daniel P. Berrange wrote:
> On Tue, May 18, 2010 at 12:32:13PM +0200, Jim Meyering wrote:
> > I've just fixed code in a test that ignored virInitialize failure.
> > Looking at all uses, I saw one other: in python/libvirt-override.c,
> > where the initialization function ignores virInitialize failure:
> >
> > void
> > #ifndef __CYGWIN__
> > initlibvirtmod
> > #else
> > initcygvirtmod
> > #endif
> > (void)
> > {
> > static int initialized = 0;
> >
> > if (initialized != 0)
> > return;
> >
> > virInitialize();
> >
> > /* initialize the python extension module */
> > Py_InitModule((char *)
> > #ifndef __CYGWIN__
> > "libvirtmod"
> > #else
> > "cygvirtmod"
> > #endif
> > , libvirtMethods);
> >
> > initialized = 1;
> > }
> >
> > Unfortunately, this function is public, so we can't change its signature.
>
> More specifically, the signature is defined by Python's loadable
> module interface so we're not at liberty to redeclare that.
>
> > Any suggestions?
>
> abort()
Actually I've got another idea. Make the Py_InitModule() call conditional
on virInitialize() suceeding. That way if virInitialize() fails, none of
the libvirt APIs will get bound to the python layer, preventing their
use
Daniel
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