[libvirt] [PATCH 6/6] Implement python binding for virDomainGetBlockInfo

Daniel P. Berrange berrange at redhat.com
Wed Apr 28 14:24:18 UTC 2010


On Wed, Apr 28, 2010 at 04:19:48PM +0200, Daniel Veillard wrote:
> On Wed, Apr 28, 2010 at 01:54:50PM +0100, Daniel P. Berrange wrote:
> > This binds the virDomainGetBlockInfo API to python's blockInfo
> > method on the domain object
> [...]
> >  static PyObject *
> > +libvirt_virDomainGetBlockInfo(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
> [...]
> > +    c_retval = virDomainGetBlockInfo(domain, path, &info, flags);
> > +    LIBVIRT_END_ALLOW_THREADS;
> > +    if (c_retval < 0)
> > +        return VIR_PY_NONE;
> > +    py_retval = PyList_New(3);
> > +    PyList_SetItem(py_retval, 0, libvirt_ulonglongWrap((int) info.capacity));
> > +    PyList_SetItem(py_retval, 1, libvirt_ulonglongWrap((int) info.allocation));
> > +    PyList_SetItem(py_retval, 2, libvirt_ulonglongWrap((int) info.physical));
> 
>   aye aye aye, isn't the (int) cast loosing data in most cases ?
> 4GB is small for a virtual disk partition ...

Opps, you're right ! No need for a cast at all there

Daniel
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