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Implement python binding for virDomainGetBlockInfo

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This binds the virDomainGetBlockInfo API to python's blockInfo
method on the domain object

>>> c = libvirt.openReadOnly('qemu:///session')
>>> d = c.lookupByName('demo')
>>> f = d.blockInfo("/dev/loop0", 0)
>>> print f
[1048576000L, 104857600L, 104857600L]

* python/libvirt-override-api.xml: Define override signature
* python/generator.py: Skip C impl generator for virDomainGetBlockInfo
* python/libvirt-override.c: Manual impl of virDomainGetBlockInfo
This commit is contained in:
Daniel P. Berrange 2010-04-28 13:42:13 +01:00
parent 7703c2c90a
commit 05776e09fc
3 changed files with 35 additions and 0 deletions
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1
python/generator.py
View File

@ -288,6 +288,7 @@ skip_impl = (
'virConnGetLastError',
'virGetLastError',
'virDomainGetInfo',
'virDomainGetBlockInfo',
'virDomainGetJobInfo',
'virNodeGetInfo',
'virDomainGetUUID',

7
python/libvirt-override-api.xml
View File

@ -48,6 +48,13 @@
<return type='int *' info='the list of information or None in case of error'/>
<arg name='domain' type='virDomainPtr' info='a domain object'/>
</function>
<function name='virDomainGetBlockInfo' file='python'>
<info>Extract information about a domain block device size</info>
<return type='int *' info='the list of information or None in case of error'/>
<arg name='domain' type='virDomainPtr' info='a domain object'/>
<arg name='path' type='const char *' info='path to the block device or file'/>
<arg name='flags' type='unsigned int' info='currently unused'/>
</function>
<function name='virDomainGetJobInfo' file='python'>
<info>Extract information about an active job being processed for a domain.</info>
<return type='int *' info='the list of information or None in case of error'/>

27
python/libvirt-override.c
View File

@ -1014,6 +1014,32 @@ libvirt_virDomainGetInfo(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
return(py_retval);
}
static PyObject *
libvirt_virDomainGetBlockInfo(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
PyObject *py_retval;
int c_retval;
virDomainPtr domain;
PyObject *pyobj_domain;
virDomainBlockInfo info;
const char *path;
unsigned int flags;
if (!PyArg_ParseTuple(args, (char *)"Ozi:virDomainGetInfo", &pyobj_domain, &path, &flags))
return(NULL);
domain = (virDomainPtr) PyvirDomain_Get(pyobj_domain);
LIBVIRT_BEGIN_ALLOW_THREADS;
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(info.capacity));
PyList_SetItem(py_retval, 1, libvirt_ulonglongWrap(info.allocation));
PyList_SetItem(py_retval, 2, libvirt_ulonglongWrap(info.physical));
return(py_retval);
}
static PyObject *
libvirt_virNodeGetInfo(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
PyObject *py_retval;
@ -3393,6 +3419,7 @@ static PyMethodDef libvirtMethods[] = {
{(char *) "virConnectDomainEventRegisterAny", libvirt_virConnectDomainEventRegisterAny, METH_VARARGS, NULL},
{(char *) "virConnectDomainEventDeregisterAny", libvirt_virConnectDomainEventDeregisterAny, METH_VARARGS, NULL},
{(char *) "virDomainGetInfo", libvirt_virDomainGetInfo, METH_VARARGS, NULL},
{(char *) "virDomainGetBlockInfo", libvirt_virDomainGetBlockInfo, METH_VARARGS, NULL},
{(char *) "virNodeGetInfo", libvirt_virNodeGetInfo, METH_VARARGS, NULL},
{(char *) "virDomainGetUUID", libvirt_virDomainGetUUID, METH_VARARGS, NULL},
{(char *) "virDomainGetUUIDString", libvirt_virDomainGetUUIDString, METH_VARARGS, NULL},