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authorViktor Mihajlovski <mihajlov@linux.vnet.ibm.com>2012-10-25 16:59:08 +0200
committerEric Blake <eblake@redhat.com>2012-10-25 11:34:35 -0600
commitdae52c3ca701ee7cd654b00375ae06e439010e2f (patch)
treef7605b7c8f6bcb98d302d026fe4c9d927bfa656d
parent2594a007509ef20e94636089e26237af7e862609 (diff)
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virNodeGetCPUMap: Add python binding
Added a method getCPUMap to virConnect. It can be used as follows: import libvirt import sys import os conn = libvirt.openReadOnly(None) if conn == None: print 'Failed to open connection to the hypervisor' sys.exit(1) try: (cpus, cpumap, online) = conn.getCPUMap(0) except: print 'Failed to extract the node cpu map information' sys.exit(1) print 'CPUs total %d, online %d' % (cpus, online) print 'CPU map %s' % str(cpumap) del conn print "OK" sys.exit(0) Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com> Signed-off-by: Eric Blake <eblake@redhat.com>
-rw-r--r--libvirt-override-api.xml6
-rw-r--r--libvirt-override.c70
2 files changed, 76 insertions, 0 deletions
diff --git a/libvirt-override-api.xml b/libvirt-override-api.xml
index b76fb4e..a0e0496 100644
--- a/libvirt-override-api.xml
+++ b/libvirt-override-api.xml
@@ -542,5 +542,11 @@
<arg name='conn' type='virConnectPtr' info='pointer to the hypervisor connection'/>
<arg name='flags' type='int' info='unused, always pass 0'/>
</function>
+ <function name='virNodeGetCPUMap' file='python'>
+ <info>Get node CPU information</info>
+ <return type='str *' info='(cpunum, cpumap, online) on success, None on error'/>
+ <arg name='conn' type='virConnectPtr' info='pointer to the hypervisor connection'/>
+ <arg name='flags' type='int' info='unused, pass 0'/>
+ </function>
</symbols>
</api>
diff --git a/libvirt-override.c b/libvirt-override.c
index 83dc925..320f26a 100644
--- a/libvirt-override.c
+++ b/libvirt-override.c
@@ -6397,6 +6397,75 @@ cleanup:
return ret;
}
+static PyObject *
+libvirt_virNodeGetCPUMap(PyObject *self ATTRIBUTE_UNUSED,
+ PyObject *args)
+{
+ virConnectPtr conn;
+ PyObject *pyobj_conn;
+ PyObject *ret = NULL;
+ PyObject *pycpumap = NULL;
+ PyObject *pyused = NULL;
+ PyObject *pycpunum = NULL;
+ PyObject *pyonline = NULL;
+ int i_retval;
+ unsigned char *cpumap = NULL;
+ unsigned int online = 0;
+ unsigned int flags;
+ int i;
+
+ if (!PyArg_ParseTuple(args, (char *)"Oi:virNodeGetCPUMap",
+ &pyobj_conn, &flags))
+ return NULL;
+ conn = (virConnectPtr) PyvirConnect_Get(pyobj_conn);
+
+ LIBVIRT_BEGIN_ALLOW_THREADS;
+ i_retval = virNodeGetCPUMap(conn, &cpumap, &online, flags);
+ LIBVIRT_END_ALLOW_THREADS;
+
+ if (i_retval < 0)
+ return VIR_PY_NONE;
+
+ if ((ret = PyTuple_New(3)) == NULL)
+ goto error;
+
+ /* 0: number of CPUs */
+ if ((pycpunum = PyLong_FromLong(i_retval)) == NULL ||
+ PyTuple_SetItem(ret, 0, pycpunum) < 0)
+ goto error;
+
+ /* 1: CPU map */
+ if ((pycpumap = PyList_New(i_retval)) == NULL)
+ goto error;
+
+ for (i = 0; i < i_retval; i++) {
+ if ((pyused = PyBool_FromLong(VIR_CPU_USED(cpumap, i))) == NULL)
+ goto error;
+ if (PyList_SetItem(pycpumap, i, pyused) < 0)
+ goto error;
+ }
+
+ if (PyTuple_SetItem(ret, 1, pycpumap) < 0)
+ goto error;
+
+ /* 2: number of online CPUs */
+ if ((pyonline = PyLong_FromLong(online)) == NULL ||
+ PyTuple_SetItem(ret, 2, pyonline) < 0)
+ goto error;
+
+cleanup:
+ VIR_FREE(cpumap);
+ return ret;
+error:
+ Py_XDECREF(ret);
+ Py_XDECREF(pycpumap);
+ Py_XDECREF(pyused);
+ Py_XDECREF(pycpunum);
+ Py_XDECREF(pyonline);
+ ret = NULL;
+ goto cleanup;
+}
+
/************************************************************************
* *
@@ -6514,6 +6583,7 @@ static PyMethodDef libvirtMethods[] = {
{(char *) "virDomainGetDiskErrors", libvirt_virDomainGetDiskErrors, METH_VARARGS, NULL},
{(char *) "virNodeGetMemoryParameters", libvirt_virNodeGetMemoryParameters, METH_VARARGS, NULL},
{(char *) "virNodeSetMemoryParameters", libvirt_virNodeSetMemoryParameters, METH_VARARGS, NULL},
+ {(char *) "virNodeGetCPUMap", libvirt_virNodeGetCPUMap, METH_VARARGS, NULL},
{NULL, NULL, 0, NULL}
};