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python: make python APIs use these helper functions

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*setPyVirTypedParameter
    *libvirt_virDomainGetCPUStats
This commit is contained in:
Guannan Ren 2012-03-27 14:06:47 +08:00 committed by Eric Blake
parent 384ebd3fc5
commit 1aeb3d9e7f
2 changed files with 24 additions and 71 deletions
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4
python/libvirt-override-api.xml
View File

@ -151,11 +151,11 @@
</function>
<function name='virDomainGetCPUStats' file='python'>
<info>Extracts CPU statistics for a running domain. On success it will
return a list of data of dictionary type. If boolean total is False, the
return a list of data of dictionary type. If boolean total is False or 0, the
first element of the list refers to CPU0 on the host, second element is
CPU1, and so on. The format of data struct is as follows:
[{cpu_time:xxx}, {cpu_time:xxx}, ...]
If it is True, it returns total domain CPU statistics in the format of
If it is True or 1, it returns total domain CPU statistics in the format of
[{cpu_time:xxx, user_time:xxx, system_time:xxx}]</info>
<return type='str *' info='returns a list of dictionary in case of success, None in case of error'/>
<arg name='domain' type='virDomainPtr' info='pointer to domain object'/>

91
python/libvirt-override.c
View File

@ -194,76 +194,38 @@ setPyVirTypedParameter(PyObject *info,
switch(params[i].type) {
case VIR_TYPED_PARAM_INT:
{
long long_val = PyInt_AsLong(value);
if ((long_val == -1) && PyErr_Occurred())
if (libvirt_intUnwrap(value, &temp->value.i) < 0)
goto cleanup;
if ((int)long_val == long_val) {
temp->value.i = long_val;
} else {
PyErr_Format(PyExc_ValueError,
"The value of "
"attribute \"%s\" is out of int range", keystr);
goto cleanup;
}
}
break;
break;
case VIR_TYPED_PARAM_UINT:
{
long long_val = PyInt_AsLong(value);
if ((long_val == -1) && PyErr_Occurred())
if (libvirt_uintUnwrap(value, &temp->value.ui) < 0)
goto cleanup;
if ((unsigned int)long_val == long_val) {
temp->value.ui = long_val;
} else {
PyErr_Format(PyExc_ValueError,
"The value of "
"attribute \"%s\" is out of int range", keystr);
goto cleanup;
}
}
break;
break;
case VIR_TYPED_PARAM_LLONG:
{
long long llong_val = PyLong_AsLongLong(value);
if ((llong_val == -1) && PyErr_Occurred())
if (libvirt_longlongUnwrap(value, &temp->value.l) < 0)
goto cleanup;
temp->value.l = llong_val;
}
break;
break;
case VIR_TYPED_PARAM_ULLONG:
{
unsigned long long ullong_val = PyLong_AsUnsignedLongLong(value);
if ((ullong_val == -1) && PyErr_Occurred())
if (libvirt_ulonglongUnwrap(value, &temp->value.ul) < 0)
goto cleanup;
temp->value.ul = ullong_val;
}
break;
break;
case VIR_TYPED_PARAM_DOUBLE:
{
double double_val = PyFloat_AsDouble(value);
if ((double_val == -1) && PyErr_Occurred())
if (libvirt_doubleUnwrap(value, &temp->value.d) < 0)
goto cleanup;
temp->value.d = double_val;
}
break;
break;
case VIR_TYPED_PARAM_BOOLEAN:
{
/* Hack - Python's definition of Py_True breaks strict
* aliasing rules, so can't directly compare
*/
if (PyBool_Check(value)) {
PyObject *hacktrue = PyBool_FromLong(1);
temp->value.b = hacktrue == value ? 1 : 0;
Py_DECREF(hacktrue);
} else {
PyErr_Format(PyExc_TypeError,
"The value type of "
"attribute \"%s\" must be bool", keystr);
bool b;
if (libvirt_boolUnwrap(value, &b) < 0)
goto cleanup;
}
temp->value.b = b;
break;
}
break;
case VIR_TYPED_PARAM_STRING:
{
char *string_val = PyString_AsString(value);
@ -388,7 +350,8 @@ libvirt_virDomainGetCPUStats(PyObject *self ATTRIBUTE_UNUSED, PyObject *args)
int ncpus = -1, start_cpu = 0;
int sumparams = 0, nparams = -1;
int i, i_retval;
unsigned int flags, totalflag;
unsigned int flags;
bool totalflag;
virTypedParameterPtr params = NULL, cpuparams;
if (!PyArg_ParseTuple(args, (char *)"OOi:virDomainGetCPUStats",
@ -396,18 +359,8 @@ libvirt_virDomainGetCPUStats(PyObject *self ATTRIBUTE_UNUSED, PyObject *args)
return NULL;
domain = (virDomainPtr) PyvirDomain_Get(pyobj_domain);
if (!PyBool_Check(totalbool)) {
PyErr_Format(PyExc_TypeError,
"The \"total\" attribute must be bool");
if (libvirt_boolUnwrap(totalbool, &totalflag) < 0)
return NULL;
} else {
/* Hack - Python's definition of Py_True breaks strict
* aliasing rules, so can't directly compare
*/
PyObject *hacktrue = PyBool_FromLong(1);
totalflag = hacktrue == totalbool ? 1 : 0;
Py_DECREF(hacktrue);
}
if ((ret = PyList_New(0)) == NULL)
return NULL;