[libvirt] [PATCH] Added python binding for the new network events API
Cédric Bosdonnat
cbosdonnat at suse.com
Fri Nov 29 15:27:49 UTC 2013
This patch was extracted from the network events feature patch to fit the
new libvirt-python repository.
---
generator.py | 2 +
libvirt-override-virConnect.py | 34 +++++++++
libvirt-override.c | 154 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 190 insertions(+)
diff --git a/generator.py b/generator.py
index a9f98ab..02ea821 100755
--- a/generator.py
+++ b/generator.py
@@ -491,6 +491,8 @@ skip_function = (
'virConnectDomainEventDeregister', # overridden in virConnect.py
'virConnectDomainEventRegisterAny', # overridden in virConnect.py
'virConnectDomainEventDeregisterAny', # overridden in virConnect.py
+ 'virConnectNetworkEventRegisterAny', # overridden in virConnect.py
+ 'virConnectNetworkEventDeregisterAny', # overridden in virConnect.py
'virSaveLastError', # We have our own python error wrapper
'virFreeError', # Only needed if we use virSaveLastError
'virConnectListAllDomains', # overridden in virConnect.py
diff --git a/libvirt-override-virConnect.py b/libvirt-override-virConnect.py
index 23fadfd..15e9c54 100644
--- a/libvirt-override-virConnect.py
+++ b/libvirt-override-virConnect.py
@@ -198,6 +198,40 @@
except AttributeError:
pass
+ def _dispatchNetworkEventLifecycleCallback(self, net, event, cbData):
+ """Dispatches events to python user network lifecycle event callbacks
+ """
+ cb = cbData["cb"]
+ opaque = cbData["opaque"]
+
+ cb(self, virNetwork(self, _obj=net), event, opaque)
+ return 0
+
+ def networkEventDeregisterAny(self, callbackID):
+ """Removes a Network Event Callback. De-registering for a
+ network callback will disable delivery of this event type """
+ try:
+ ret = libvirtmod.virConnectNetworkEventDeregisterAny(self._o, callbackID)
+ if ret == -1: raise libvirtError ('virConnectNetworkEventDeregisterAny() failed', conn=self)
+ del self.networkEventCallbackID[callbackID]
+ except AttributeError:
+ pass
+
+ def networkEventRegisterAny(self, net, eventID, cb, opaque):
+ """Adds a Network Event Callback. Registering for a network
+ callback will enable delivery of the events """
+ if not hasattr(self, 'networkEventCallbackID'):
+ self.networkEventCallbackID = {}
+ cbData = { "cb": cb, "conn": self, "opaque": opaque }
+ if net is None:
+ ret = libvirtmod.virConnectNetworkEventRegisterAny(self._o, None, eventID, cbData)
+ else:
+ ret = libvirtmod.virConnectNetworkEventRegisterAny(self._o, net._o, eventID, cbData)
+ if ret == -1:
+ raise libvirtError ('virConnectNetworkEventRegisterAny() failed', conn=self)
+ self.networkEventCallbackID[ret] = opaque
+ return ret
+
def domainEventRegisterAny(self, dom, eventID, cb, opaque):
"""Adds a Domain Event Callback. Registering for a domain
callback will enable delivery of the events """
diff --git a/libvirt-override.c b/libvirt-override.c
index 93b9c5f..d613b0d 100644
--- a/libvirt-override.c
+++ b/libvirt-override.c
@@ -6569,6 +6569,156 @@ libvirt_virConnectDomainEventDeregisterAny(ATTRIBUTE_UNUSED PyObject * self,
return py_retval;
}
+#if LIBVIR_CHECK_VERSION(1, 2, 1)
+static void
+libvirt_virConnectNetworkEventFreeFunc(void *opaque)
+{
+ PyObject *pyobj_conn = (PyObject*)opaque;
+ LIBVIRT_ENSURE_THREAD_STATE;
+ Py_DECREF(pyobj_conn);
+ LIBVIRT_RELEASE_THREAD_STATE;
+}
+
+static int
+libvirt_virConnectNetworkEventLifecycleCallback(virConnectPtr conn ATTRIBUTE_UNUSED,
+ virNetworkPtr net,
+ int event,
+ void *opaque)
+{
+ PyObject *pyobj_cbData = (PyObject*)opaque;
+ PyObject *pyobj_net;
+ PyObject *pyobj_ret;
+ PyObject *pyobj_conn;
+ PyObject *dictKey;
+ int ret = -1;
+
+ LIBVIRT_ENSURE_THREAD_STATE;
+
+ /* Create a python instance of this virNetworkPtr */
+ virNetworkRef(net);
+ pyobj_net = libvirt_virNetworkPtrWrap(net);
+ Py_INCREF(pyobj_cbData);
+
+ dictKey = libvirt_constcharPtrWrap("conn");
+ pyobj_conn = PyDict_GetItem(pyobj_cbData, dictKey);
+ Py_DECREF(dictKey);
+
+ /* Call the Callback Dispatcher */
+ pyobj_ret = PyObject_CallMethod(pyobj_conn,
+ (char*)"_dispatchNetworkEventLifecycleCallback",
+ (char*)"OiO",
+ pyobj_net,
+ event,
+ pyobj_cbData);
+
+ Py_DECREF(pyobj_cbData);
+ Py_DECREF(pyobj_net);
+
+ if (!pyobj_ret) {
+ DEBUG("%s - ret:%p\n", __FUNCTION__, pyobj_ret);
+ PyErr_Print();
+ } else {
+ Py_DECREF(pyobj_ret);
+ ret = 0;
+ }
+
+ LIBVIRT_RELEASE_THREAD_STATE;
+ return ret;
+}
+
+static PyObject *
+libvirt_virConnectNetworkEventRegisterAny(ATTRIBUTE_UNUSED PyObject * self,
+ PyObject * args)
+{
+ PyObject *py_retval; /* return value */
+ PyObject *pyobj_conn; /* virConnectPtr */
+ PyObject *pyobj_net;
+ PyObject *pyobj_cbData; /* hash of callback data */
+ int eventID;
+ virConnectPtr conn;
+ int ret = 0;
+ virConnectNetworkEventGenericCallback cb = NULL;
+ virNetworkPtr net;
+ virNetworkEventID eventId = VIR_NETWORK_EVENT_ID_LAST;
+
+ if (!PyArg_ParseTuple
+ (args, (char *) "OOiO:virConnectNetworkEventRegisterAny",
+ &pyobj_conn, &pyobj_net, &eventID, &pyobj_cbData)) {
+ DEBUG("%s failed parsing tuple\n", __FUNCTION__);
+ return VIR_PY_INT_FAIL;
+ }
+
+ DEBUG("libvirt_virConnectNetworkEventRegister(%p %p %d %p) called\n",
+ pyobj_conn, pyobj_net, eventID, pyobj_cbData);
+ conn = PyvirConnect_Get(pyobj_conn);
+ if (pyobj_net == Py_None)
+ net = NULL;
+ else
+ net = PyvirNetwork_Get(pyobj_net);
+
+ if ( ((eventID & 0xFF00) >> 8) != VIR_EVENT_NAMESPACE_NETWORK) {
+ return VIR_PY_INT_FAIL;
+ }
+
+ eventId = (virNetworkEventID) (eventID & 0xFF);
+ switch (eventId) {
+ case VIR_NETWORK_EVENT_ID_LIFECYCLE:
+ cb = VIR_NETWORK_EVENT_CALLBACK(libvirt_virConnectNetworkEventLifecycleCallback);
+ break;
+
+ case VIR_NETWORK_EVENT_ID_LAST:
+ break;
+ }
+
+ if (!cb) {
+ return VIR_PY_INT_FAIL;
+ }
+
+ Py_INCREF(pyobj_cbData);
+
+ LIBVIRT_BEGIN_ALLOW_THREADS;
+ ret = virConnectNetworkEventRegisterAny(conn, net, eventID,
+ cb, pyobj_cbData,
+ libvirt_virConnectNetworkEventFreeFunc);
+ LIBVIRT_END_ALLOW_THREADS;
+
+ if (ret < 0) {
+ Py_DECREF(pyobj_cbData);
+ }
+
+ py_retval = libvirt_intWrap(ret);
+ return py_retval;
+}
+
+static PyObject *
+libvirt_virConnectNetworkEventDeregisterAny(ATTRIBUTE_UNUSED PyObject * self,
+ PyObject * args)
+{
+ PyObject *py_retval;
+ PyObject *pyobj_conn;
+ int callbackID;
+ virConnectPtr conn;
+ int ret = 0;
+
+ if (!PyArg_ParseTuple
+ (args, (char *) "Oi:virConnectNetworkEventDeregister",
+ &pyobj_conn, &callbackID))
+ return NULL;
+
+ DEBUG("libvirt_virConnectNetworkEventDeregister(%p) called\n", pyobj_conn);
+
+ conn = (virConnectPtr) PyvirConnect_Get(pyobj_conn);
+
+ LIBVIRT_BEGIN_ALLOW_THREADS;
+
+ ret = virConnectNetworkEventDeregisterAny(conn, callbackID);
+
+ LIBVIRT_END_ALLOW_THREADS;
+ py_retval = libvirt_intWrap(ret);
+ return py_retval;
+}
+#endif /* LIBVIR_CHECK_VERSION(1, 2, 1)*/
+
#if LIBVIR_CHECK_VERSION(0, 10, 0)
static void
libvirt_virConnectCloseCallbackDispatch(virConnectPtr conn ATTRIBUTE_UNUSED,
@@ -7369,6 +7519,10 @@ static PyMethodDef libvirtMethods[] = {
{(char *) "virConnectDomainEventDeregister", libvirt_virConnectDomainEventDeregister, METH_VARARGS, NULL},
{(char *) "virConnectDomainEventRegisterAny", libvirt_virConnectDomainEventRegisterAny, METH_VARARGS, NULL},
{(char *) "virConnectDomainEventDeregisterAny", libvirt_virConnectDomainEventDeregisterAny, METH_VARARGS, NULL},
+#if LIBVIR_CHECK_VERSION(1, 2, 1)
+ {(char *) "virConnectNetworkEventRegisterAny", libvirt_virConnectNetworkEventRegisterAny, METH_VARARGS, NULL},
+ {(char *) "virConnectNetworkEventDeregisterAny", libvirt_virConnectNetworkEventDeregisterAny, METH_VARARGS, NULL},
+#endif /* LIBVIR_CHECK_VERSION(1, 2, 1) */
#if LIBVIR_CHECK_VERSION(0, 10, 0)
{(char *) "virConnectRegisterCloseCallback", libvirt_virConnectRegisterCloseCallback, METH_VARARGS, NULL},
{(char *) "virConnectUnregisterCloseCallback", libvirt_virConnectUnregisterCloseCallback, METH_VARARGS, NULL},
--
1.8.4.2
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