[libvirt] [PATCH 7/8] latency: Expose the new API for Python binding

[Osier Yang]

---
 python/generator.py             |    1 +
 python/libvirt-override-api.xml |    7 +++
 python/libvirt-override.c       |   85 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 93 insertions(+), 0 deletions(-)

diff --git a/python/generator.py b/python/generator.py
index cc253cf..d17fb26 100755
--- a/python/generator.py
+++ b/python/generator.py
@@ -373,6 +373,7 @@ skip_impl = (
     'virNodeGetMemoryStats',
     'virDomainGetBlockJobInfo',
     'virDomainMigrateGetMaxSpeed',
+    'virDomainBlockStatsFlags',
 )
 
 
diff --git a/python/libvirt-override-api.xml b/python/libvirt-override-api.xml
index 1cf115c..3013e46 100644
--- a/python/libvirt-override-api.xml
+++ b/python/libvirt-override-api.xml
@@ -128,6 +128,13 @@
       <arg name='domain' type='virDomainPtr' info='a domain object'/>
       <arg name='path' type='char *' info='the path for the block device'/>
     </function>
+    <function name='virDomainBlockStatsFlags' file='python'>
+      <info>Extracts block device statistics parameters of a running domain</info>
+      <return type='virTypedParameterPtr' info='None in case of error, returns a dictionary of params'/>
+      <arg name='domain' type='virDomainPtr' info='pointer to domain object'/>
+      <arg name='path' type='char *' info='the path for the block device'/>
+      <arg name='flags' type='int' info='flags (unused; pass 0)'/>
+    </function>
     <function name='virDomainInterfaceStats' file='python'>
       <info>Extracts interface device statistics for a domain</info>
       <return type='virDomainInterfaceStats' info='a tuple of statistics'/>
diff --git a/python/libvirt-override.c b/python/libvirt-override.c
index b020342..d65423d 100644
--- a/python/libvirt-override.c
+++ b/python/libvirt-override.c
@@ -100,6 +100,90 @@ libvirt_virDomainBlockStats(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
 }
 
 static PyObject *
+libvirt_virDomainBlockStatsFlags(PyObject *self ATTRIBUTE_UNUSED,
+                                 PyObject *args) {
+    virDomainPtr domain;
+    PyObject *pyobj_domain, *info;
+    int i_retval;
+    int nparams = 0, i;
+    unsigned int flags;
+    virTypedParameterPtr params;
+    const char *path;
+
+    if (!PyArg_ParseTuple(args, (char *)"Ozi:virDomainBlockStatsFlags",
+                          &pyobj_domain, &path, &flags))
+        return(NULL);
+    domain = (virDomainPtr) PyvirDomain_Get(pyobj_domain);
+
+    LIBVIRT_BEGIN_ALLOW_THREADS;
+    i_retval = virDomainBlockStatsFlags(domain, path, NULL, &nparams, flags);
+    LIBVIRT_END_ALLOW_THREADS;
+
+    if (i_retval < 0)
+        return VIR_PY_NONE;
+
+    if ((params = malloc(sizeof(*params)*nparams)) == NULL)
+        return VIR_PY_NONE;
+
+    LIBVIRT_BEGIN_ALLOW_THREADS;
+    i_retval = virDomainBlockStatsFlags(domain, path, params, &nparams, flags);
+    LIBVIRT_END_ALLOW_THREADS;
+
+    if (i_retval < 0) {
+        free(params);
+        return VIR_PY_NONE;
+    }
+
+    /* convert to a Python tuple of long objects */
+    if ((info = PyDict_New()) == NULL) {
+        free(params);
+        return VIR_PY_NONE;
+    }
+
+    for (i = 0 ; i < nparams ; i++) {
+        PyObject *key, *val;
+
+        switch (params[i].type) {
+        case VIR_TYPED_PARAM_INT:
+            val = PyInt_FromLong((long)params[i].value.i);
+            break;
+
+        case VIR_TYPED_PARAM_UINT:
+            val = PyInt_FromLong((long)params[i].value.ui);
+            break;
+
+        case VIR_TYPED_PARAM_LLONG:
+            val = PyLong_FromLongLong((long long)params[i].value.l);
+            break;
+
+        case VIR_TYPED_PARAM_ULLONG:
+            val = PyLong_FromLongLong((long long)params[i].value.ul);
+            break;
+
+        case VIR_TYPED_PARAM_DOUBLE:
+            val = PyFloat_FromDouble((double)params[i].value.d);
+            break;
+
+        case VIR_TYPED_PARAM_BOOLEAN:
+            val = PyBool_FromLong((long)params[i].value.b);
+            break;
+
+        default:
+            free(params);
+            Py_DECREF(info);
+            return VIR_PY_NONE;
+        }
+
+        key = libvirt_constcharPtrWrap(params[i].field);
+        PyDict_SetItem(info, key, val);
+    }
+
+    free(params);
+    return(info);
+}
+
+
+static PyObject *
 libvirt_virDomainInterfaceStats(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
     virDomainPtr domain;
     PyObject *pyobj_domain;
@@ -4605,6 +4689,7 @@ static PyMethodDef libvirtMethods[] = {
     {(char *) "virDomainGetAutostart", libvirt_virDomainGetAutostart, METH_VARARGS, NULL},
     {(char *) "virNetworkGetAutostart", libvirt_virNetworkGetAutostart, METH_VARARGS, NULL},
     {(char *) "virDomainBlockStats", libvirt_virDomainBlockStats, METH_VARARGS, NULL},
+    {(char *) "virDomainBlockStatsFlags", libvirt_virDomainBlockStatsFlags, METH_VARARGS, NULL},
     {(char *) "virDomainInterfaceStats", libvirt_virDomainInterfaceStats, METH_VARARGS, NULL},
     {(char *) "virDomainMemoryStats", libvirt_virDomainMemoryStats, METH_VARARGS, NULL},
     {(char *) "virNodeGetCellsFreeMemory", libvirt_virNodeGetCellsFreeMemory, METH_VARARGS, NULL},
-- 
1.7.6