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python: Expose binding for virNodeGetMemoryStats()

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This patch adds binding for virNodeGetMemoryStats method of libvirtd.
Return value is represented as a python dictionary mapping field
names to values.
This commit is contained in:
Peter Krempa 2011-11-28 18:19:28 +01:00
parent 49556023f2
commit 17c7795561
3 changed files with 59 additions and 2 deletions
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6
include/libvirt/libvirt.h.in
View File

@ -445,9 +445,11 @@ struct _virNodeCPUStats {
/**
* VIR_NODE_MEMORY_STATS_ALL_CELLS:
*
* Macro for the total memory of all cells.
* Value for specifying request for the total memory of all cells.
*/
#define VIR_NODE_MEMORY_STATS_ALL_CELLS (-1)
typedef enum {
VIR_NODE_MEMORY_STATS_ALL_CELLS = -1,
} virNodeGetMemoryStatsAllCells;
/**
* VIR_NODE_MEMORY_STATS_TOTAL:

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

@ -84,6 +84,13 @@
<arg name='cpuNum' type='int' info='number of node cpu. (VIR_NODE_CPU_STATS_ALL_CPUS means total cpu statistics)'/>
<arg name='flags' type='unsigned int' info='additional flags'/>
</function>
<function name='virNodeGetMemoryStats' file='python'>
<info>Extract node's memory statistics.</info>
<return type='virNodeMemoryStats' info='dictionary mapping field names to values or None in case of error'/>
<arg name='conn' type='virConnectPtr' info='pointer to hypervisor connection'/>
<arg name='cellNum' type='int' info='number of node cell. (VIR_NODE_MEMORY_STATS_ALL_CELLS means total cell statistics)'/>
<arg name='flags' type='unsigned int' info='additional flags'/>
</function>
<function name='virDomainGetUUID' file='python'>
<info>Extract the UUID unique Identifier of a domain.</info>
<return type='char *' info='the 16 bytes string or None in case of error'/>

48
python/libvirt-override.c
View File

@ -2303,6 +2303,53 @@ libvirt_virNodeGetCPUStats(PyObject *self ATTRIBUTE_UNUSED, PyObject *args)
return ret;
}
static PyObject *
libvirt_virNodeGetMemoryStats(PyObject *self ATTRIBUTE_UNUSED, PyObject *args)
{
PyObject *ret;
PyObject *pyobj_conn;
virConnectPtr conn;
unsigned int flags;
int cellNum, c_retval, i;
int nparams = 0;
virNodeMemoryStatsPtr stats = NULL;
if (!PyArg_ParseTuple(args, (char *)"Oii:virNodeGetMemoryStats", &pyobj_conn, &cellNum, &flags))
return(NULL);
conn = (virConnectPtr)(PyvirConnect_Get(pyobj_conn));
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virNodeGetMemoryStats(conn, cellNum, NULL, &nparams, flags);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0)
return VIR_PY_NONE;
if (nparams) {
if (!(stats = malloc(sizeof(*stats) * nparams)))
return VIR_PY_NONE;
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virNodeGetMemoryStats(conn, cellNum, stats, &nparams, flags);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0) {
free(stats);
return VIR_PY_NONE;
}
}
if (!(ret = PyDict_New())) {
free(stats);
return VIR_PY_NONE;
}
for (i = 0; i < nparams; i++) {
PyDict_SetItem(ret,
libvirt_constcharPtrWrap(stats[i].field),
libvirt_ulonglongWrap(stats[i].value));
}
free(stats);
return ret;
}
static PyObject *
libvirt_virConnectListStoragePools(PyObject *self ATTRIBUTE_UNUSED,
PyObject *args) {
@ -4996,6 +5043,7 @@ static PyMethodDef libvirtMethods[] = {
{(char *) "virDomainGetBlockInfo", libvirt_virDomainGetBlockInfo, METH_VARARGS, NULL},
{(char *) "virNodeGetInfo", libvirt_virNodeGetInfo, METH_VARARGS, NULL},
{(char *) "virNodeGetCPUStats", libvirt_virNodeGetCPUStats, METH_VARARGS, NULL},
{(char *) "virNodeGetMemoryStats", libvirt_virNodeGetMemoryStats, METH_VARARGS, NULL},
{(char *) "virDomainGetUUID", libvirt_virDomainGetUUID, METH_VARARGS, NULL},
{(char *) "virDomainGetUUIDString", libvirt_virDomainGetUUIDString, METH_VARARGS, NULL},
{(char *) "virDomainLookupByUUID", libvirt_virDomainLookupByUUID, METH_VARARGS, NULL},