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startupPolicy: Emit event on disk source dropping

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If a disk source gets dropped because it is not accessible,
mgmt application might want to be informed about this. Therefore
we need to emit an event. The event presented in this patch
is however a bit superset of what written above. The reason is simple:
an intention to be easily expanded, e.g. on 'user ejected disk
in guest' events. Therefore, callback gets source string and disk alias
(which should be unique among a domain) and reason (an integer);
This commit is contained in:
Michal Privoznik
2011-10-18 16:15:42 +02:00
parent 12ba43222d
commit baf2ff7e90
14 changed files with 337 additions and 9 deletions
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53
python/libvirt-override.c
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@@ -4374,6 +4374,56 @@ libvirt_virConnectDomainEventBlockJobCallback(virConnectPtr conn ATTRIBUTE_UNUSE
return ret;
}
static int
libvirt_virConnectDomainEventDiskChangeCallback(virConnectPtr conn ATTRIBUTE_UNUSED,
virDomainPtr dom,
const char *oldSrcPath,
const char *newSrcPath,
const char *devAlias,
int reason,
void *opaque)
{
PyObject *pyobj_cbData = (PyObject*)opaque;
PyObject *pyobj_dom;
PyObject *pyobj_ret;
PyObject *pyobj_conn;
PyObject *dictKey;
int ret = -1;
LIBVIRT_ENSURE_THREAD_STATE;
/* Create a python instance of this virDomainPtr */
virDomainRef(dom);
pyobj_dom = libvirt_virDomainPtrWrap(dom);
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*)"_dispatchDomainEventDiskChangeCallback",
(char*)"OsssiO",
pyobj_dom,
oldSrcPath, newSrcPath,
devAlias, reason, pyobj_cbData);
Py_DECREF(pyobj_cbData);
Py_DECREF(pyobj_dom);
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_virConnectDomainEventRegisterAny(ATTRIBUTE_UNUSED PyObject * self,
PyObject * args)
@@ -4431,6 +4481,9 @@ libvirt_virConnectDomainEventRegisterAny(ATTRIBUTE_UNUSED PyObject * self,
case VIR_DOMAIN_EVENT_ID_BLOCK_JOB:
cb = VIR_DOMAIN_EVENT_CALLBACK(libvirt_virConnectDomainEventBlockJobCallback);
break;
case VIR_DOMAIN_EVENT_ID_DISK_CHANGE:
cb = VIR_DOMAIN_EVENT_CALLBACK(libvirt_virConnectDomainEventDiskChangeCallback);
break;
}
if (!cb) {