mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-08-28 11:31:16 +00:00
When the guest changes its memory balloon applications may want to know what the new value is, without having to periodically poll on XML / domain info. Introduce a "balloon change" event to let apps see this * include/libvirt/libvirt.h.in: Define the virConnectDomainEventBalloonChangeCallback callback and VIR_DOMAIN_EVENT_ID_BALLOON_CHANGE constant * python/libvirt-override-virConnect.py, python/libvirt-override.c: Wire up helpers for new event * daemon/remote.c: Helper for serializing balloon event * examples/domain-events/events-c/event-test.c, examples/domain-events/events-python/event-test.py: Add example of balloon event usage * src/conf/domain_event.c, src/conf/domain_event.h: Handling of balloon events * src/remote/remote_driver.c: Add handler of balloon events * src/remote/remote_protocol.x: Define wire protocol for balloon events * src/remote_protocol-structs: Likewise. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
209 lines
7.8 KiB
Python
209 lines
7.8 KiB
Python
def __del__(self):
|
|
try:
|
|
for cb,opaque in self.domainEventCallbacks.items():
|
|
del self.domainEventCallbacks[cb]
|
|
del self.domainEventCallbacks
|
|
libvirtmod.virConnectDomainEventDeregister(self._o, self)
|
|
except AttributeError:
|
|
pass
|
|
|
|
if self._o != None:
|
|
libvirtmod.virConnectClose(self._o)
|
|
self._o = None
|
|
|
|
def domainEventDeregister(self, cb):
|
|
"""Removes a Domain Event Callback. De-registering for a
|
|
domain callback will disable delivery of this event type """
|
|
try:
|
|
del self.domainEventCallbacks[cb]
|
|
if len(self.domainEventCallbacks) == 0:
|
|
del self.domainEventCallbacks
|
|
ret = libvirtmod.virConnectDomainEventDeregister(self._o, self)
|
|
if ret == -1: raise libvirtError ('virConnectDomainEventDeregister() failed', conn=self)
|
|
except AttributeError:
|
|
pass
|
|
|
|
def domainEventRegister(self, cb, opaque):
|
|
"""Adds a Domain Event Callback. Registering for a domain
|
|
callback will enable delivery of the events """
|
|
try:
|
|
self.domainEventCallbacks[cb] = opaque
|
|
except AttributeError:
|
|
self.domainEventCallbacks = {cb:opaque}
|
|
ret = libvirtmod.virConnectDomainEventRegister(self._o, self)
|
|
if ret == -1: raise libvirtError ('virConnectDomainEventRegister() failed', conn=self)
|
|
|
|
def _dispatchDomainEventCallbacks(self, dom, event, detail):
|
|
"""Dispatches events to python user domain event callbacks
|
|
"""
|
|
try:
|
|
for cb,opaque in self.domainEventCallbacks.items():
|
|
cb(self,dom,event,detail,opaque)
|
|
return 0
|
|
except AttributeError:
|
|
pass
|
|
|
|
def _dispatchDomainEventLifecycleCallback(self, dom, event, detail, cbData):
|
|
"""Dispatches events to python user domain lifecycle event callbacks
|
|
"""
|
|
cb = cbData["cb"]
|
|
opaque = cbData["opaque"]
|
|
|
|
cb(self, virDomain(self, _obj=dom), event, detail, opaque)
|
|
return 0
|
|
|
|
def _dispatchDomainEventGenericCallback(self, dom, cbData):
|
|
"""Dispatches events to python user domain generic event callbacks
|
|
"""
|
|
cb = cbData["cb"]
|
|
opaque = cbData["opaque"]
|
|
|
|
cb(self, virDomain(self, _obj=dom), opaque)
|
|
return 0
|
|
|
|
def _dispatchDomainEventRTCChangeCallback(self, dom, offset, cbData):
|
|
"""Dispatches events to python user domain RTC change event callbacks
|
|
"""
|
|
cb = cbData["cb"]
|
|
opaque = cbData["opaque"]
|
|
|
|
cb(self, virDomain(self, _obj=dom), offset ,opaque)
|
|
return 0
|
|
|
|
def _dispatchDomainEventWatchdogCallback(self, dom, action, cbData):
|
|
"""Dispatches events to python user domain watchdog event callbacks
|
|
"""
|
|
cb = cbData["cb"]
|
|
opaque = cbData["opaque"]
|
|
|
|
cb(self, virDomain(self, _obj=dom), action, opaque)
|
|
return 0
|
|
|
|
def _dispatchDomainEventIOErrorCallback(self, dom, srcPath, devAlias,
|
|
action, cbData):
|
|
"""Dispatches events to python user domain IO error event callbacks
|
|
"""
|
|
cb = cbData["cb"]
|
|
opaque = cbData["opaque"]
|
|
|
|
cb(self, virDomain(self, _obj=dom), srcPath, devAlias, action, opaque)
|
|
return 0
|
|
|
|
def _dispatchDomainEventIOErrorReasonCallback(self, dom, srcPath,
|
|
devAlias, action, reason,
|
|
cbData):
|
|
"""Dispatches events to python user domain IO error event callbacks
|
|
"""
|
|
cb = cbData["cb"]
|
|
opaque = cbData["opaque"]
|
|
|
|
cb(self, virDomain(self, _obj=dom), srcPath, devAlias, action,
|
|
reason, opaque)
|
|
return 0
|
|
|
|
def _dispatchDomainEventGraphicsCallback(self, dom, phase, localAddr,
|
|
remoteAddr, authScheme, subject,
|
|
cbData):
|
|
"""Dispatches events to python user domain graphics event callbacks
|
|
"""
|
|
cb = cbData["cb"]
|
|
opaque = cbData["opaque"]
|
|
|
|
cb(self, virDomain(self, _obj=dom), phase, localAddr, remoteAddr,
|
|
authScheme, subject, opaque)
|
|
return 0
|
|
|
|
def dispatchDomainEventBlockPullCallback(self, dom, path, type, status, cbData):
|
|
"""Dispatches events to python user domain blockJob event callbacks
|
|
"""
|
|
try:
|
|
cb = cbData["cb"]
|
|
opaque = cbData["opaque"]
|
|
|
|
cb(self, virDomain(self, _obj=dom), path, type, status, opaque)
|
|
return 0
|
|
except AttributeError:
|
|
pass
|
|
|
|
def _dispatchDomainEventDiskChangeCallback(self, dom, oldSrcPath, newSrcPath, devAlias, reason, cbData):
|
|
"""Dispatches event to python user domain diskChange event callbacks
|
|
"""
|
|
cb = cbData["cb"]
|
|
opaque = cbData["opaque"]
|
|
|
|
cb(self, virDomain(self, _obj=dom), oldSrcPath, newSrcPath, devAlias, reason, opaque)
|
|
return 0;
|
|
|
|
def _dispatchDomainEventTrayChangeCallback(self, dom, devAlias, reason, cbData):
|
|
"""Dispatches event to python user domain trayChange event callbacks
|
|
"""
|
|
cb = cbData["cb"]
|
|
opaque = cbData["opaque"]
|
|
|
|
cb(self, virDomain(self, _obj=dom), devAlias, reason, opaque)
|
|
return 0;
|
|
|
|
def _dispatchDomainEventPMWakeupCallback(self, dom, reason, cbData):
|
|
"""Dispatches event to python user domain pmwakeup event callbacks
|
|
"""
|
|
cb = cbData["cb"]
|
|
opaque = cbData["opaque"]
|
|
|
|
cb(self, virDomain(self, _obj=dom), reason, opaque)
|
|
return 0;
|
|
|
|
def _dispatchDomainEventPMSuspendCallback(self, dom, reason, cbData):
|
|
"""Dispatches event to python user domain pmsuspend event callbacks
|
|
"""
|
|
cb = cbData["cb"]
|
|
opaque = cbData["opaque"]
|
|
|
|
cb(self, virDomain(self, _obj=dom), reason, opaque)
|
|
return 0;
|
|
|
|
def _dispatchDomainEventBalloonChangeCallback(self, dom, actual, cbData):
|
|
"""Dispatches events to python user domain balloon change event callbacks
|
|
"""
|
|
cb = cbData["cb"]
|
|
opaque = cbData["opaque"]
|
|
|
|
cb(self, virDomain(self, _obj=dom), actual, opaque)
|
|
return 0
|
|
|
|
def domainEventDeregisterAny(self, callbackID):
|
|
"""Removes a Domain Event Callback. De-registering for a
|
|
domain callback will disable delivery of this event type """
|
|
try:
|
|
ret = libvirtmod.virConnectDomainEventDeregisterAny(self._o, callbackID)
|
|
if ret == -1: raise libvirtError ('virConnectDomainEventDeregisterAny() failed', conn=self)
|
|
del self.domainEventCallbackID[callbackID]
|
|
except AttributeError:
|
|
pass
|
|
|
|
def domainEventRegisterAny(self, dom, eventID, cb, opaque):
|
|
"""Adds a Domain Event Callback. Registering for a domain
|
|
callback will enable delivery of the events """
|
|
if not hasattr(self, 'domainEventCallbackID'):
|
|
self.domainEventCallbackID = {}
|
|
cbData = { "cb": cb, "conn": self, "opaque": opaque }
|
|
if dom is None:
|
|
ret = libvirtmod.virConnectDomainEventRegisterAny(self._o, None, eventID, cbData)
|
|
else:
|
|
ret = libvirtmod.virConnectDomainEventRegisterAny(self._o, dom._o, eventID, cbData)
|
|
if ret == -1:
|
|
raise libvirtError ('virConnectDomainEventRegisterAny() failed', conn=self)
|
|
self.domainEventCallbackID[ret] = opaque
|
|
return ret
|
|
|
|
def listAllDomains(self, flags):
|
|
"""List all domains and returns a list of domain objects"""
|
|
ret = libvirtmod.virConnectListAllDomains(self._o, flags)
|
|
if ret is None:
|
|
raise libvirtError("virConnectListAllDomains() failed", conn=self)
|
|
|
|
retlist = list()
|
|
for domptr in ret:
|
|
retlist.append(virDomain(self, _obj=domptr))
|
|
|
|
return retlist
|