mirror of
https://gitlab.com/libvirt/libvirt.git
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6df7d55d39
The generator was disabled for the new event callbacks, since they need to be hand written. This patch adds the C and python glue to expose the new APIs in the python binding. The python example program is extended to demonstrate of the code * python/libvirt-override.c: Registration and dispatch of events at the C layer * python/libvirt-override-virConnect.py: Python glue for events * examples/domain-events/events-python/event-test.py: Demo use of new event callbacks
89 lines
3.6 KiB
Python
89 lines
3.6 KiB
Python
def __del__(self):
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try:
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for cb,opaque in self.domainEventCallbacks.items():
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del self.domainEventCallbacks[cb]
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self.domainEventCallbacks = None
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libvirtmod.virConnectDomainEventDeregister(self._o, self)
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except AttributeError:
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pass
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if self._o != None:
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libvirtmod.virConnectClose(self._o)
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self._o = None
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def domainEventDeregister(self, cb):
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"""Removes a Domain Event Callback. De-registering for a
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domain callback will disable delivery of this event type """
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try:
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del self.domainEventCallbacks[cb]
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if len(self.domainEventCallbacks) == 0:
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ret = libvirtmod.virConnectDomainEventDeregister(self._o, self)
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if ret == -1: raise libvirtError ('virConnectDomainEventDeregister() failed', conn=self)
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except AttributeError:
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pass
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def domainEventRegister(self, cb, opaque):
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"""Adds a Domain Event Callback. Registering for a domain
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callback will enable delivery of the events """
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try:
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self.domainEventCallbacks[cb] = opaque
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except AttributeError:
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self.domainEventCallbacks = {cb:opaque}
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ret = libvirtmod.virConnectDomainEventRegister(self._o, self)
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if ret == -1: raise libvirtError ('virConnectDomainEventRegister() failed', conn=self)
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def dispatchDomainEventCallbacks(self, dom, event, detail):
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"""Dispatches events to python user domain event callbacks
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"""
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try:
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for cb,opaque in self.domainEventCallbacks.items():
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cb(self,dom,event,detail,opaque)
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return 0
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except AttributeError:
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pass
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def dispatchDomainEventLifecycleCallback(self, dom, event, detail, cbData):
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"""Dispatches events to python user domain event callbacks
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"""
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cb = cbData["cb"]
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opaque = cbData["opaque"]
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cb(self, virDomain(self, _obj=dom), event, detail, opaque)
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return 0
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def dispatchDomainEventGenericCallback(self, dom, cbData):
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"""Dispatches events to python user domain event callbacks
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"""
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try:
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cb = cbData["cb"]
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opaque = cbData["opaque"]
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cb(self, virDomain(self, _obj=dom), opaque)
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return 0
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except AttributeError:
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pass
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def domainEventDeregisterAny(self, callbackID):
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"""Removes a Domain Event Callback. De-registering for a
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domain callback will disable delivery of this event type """
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try:
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ret = libvirtmod.virConnectDomainEventDeregisterAny(self._o, callbackID)
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if ret == -1: raise libvirtError ('virConnectDomainEventDeregisterAny() failed', conn=self)
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del self.domainEventCallbackID[callbackID]
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except AttributeError:
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pass
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def domainEventRegisterAny(self, dom, eventID, cb, opaque):
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"""Adds a Domain Event Callback. Registering for a domain
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callback will enable delivery of the events """
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if not hasattr(self, 'domainEventCallbackID'):
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self.domainEventCallbackID = {}
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cbData = { "cb": cb, "conn": self, "opaque": opaque }
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if dom is None:
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ret = libvirtmod.virConnectDomainEventRegisterAny(self._o, None, eventID, cbData)
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else:
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ret = libvirtmod.virConnectDomainEventRegisterAny(self._o, dom._o, eventID, cbData)
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if ret == -1:
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raise libvirtError ('virConnectDomainEventRegisterAny() failed', conn=self)
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self.domainEventCallbackID[ret] = opaque
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