mirror of
https://gitlab.com/libvirt/libvirt.git
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12cd77a0c5
When an operation started by virDomainBlockPullAll completes (either with success or with failure), raise an event to indicate the final status. This allows an API user to avoid polling on virDomainBlockPullInfo if they would prefer to use the event mechanism. * daemon/remote.c: Dispatch events to client * include/libvirt/libvirt.h.in: Define event ID and callback signature * src/conf/domain_event.c, src/conf/domain_event.h, src/libvirt_private.syms: Extend API to handle the new event * src/qemu/qemu_driver.c: Connect to the QEMU monitor event for block_stream completion and emit a libvirt block pull event * src/remote/remote_driver.c: Receive and dispatch events to application * src/remote/remote_protocol.x: Wire protocol definition for the event * src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h, src/qemu/qemu_monitor_json.c: Watch for BLOCK_STREAM_COMPLETED event from QEMU monitor Signed-off-by: Adam Litke <agl@us.ibm.com>
163 lines
6.0 KiB
Python
163 lines
6.0 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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del self.domainEventCallbacks
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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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del self.domainEventCallbacks
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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 lifecycle 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 generic 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 dispatchDomainEventRTCChangeCallback(self, dom, offset, cbData):
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"""Dispatches events to python user domain RTC change 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), offset ,opaque)
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return 0
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except AttributeError:
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pass
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def dispatchDomainEventWatchdogCallback(self, dom, action, cbData):
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"""Dispatches events to python user domain watchdog 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), action, opaque)
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return 0
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except AttributeError:
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pass
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def dispatchDomainEventIOErrorCallback(self, dom, srcPath, devAlias, action, cbData):
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"""Dispatches events to python user domain IO error 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), srcPath, devAlias, action, opaque)
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return 0
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except AttributeError:
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pass
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def dispatchDomainEventIOErrorReasonCallback(self, dom, srcPath, devAlias, action, reason, cbData):
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"""Dispatches events to python user domain IO error 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), srcPath, devAlias, action, reason, opaque)
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return 0
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except AttributeError:
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pass
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def dispatchDomainEventGraphicsCallback(self, dom, phase, localAddr, remoteAddr, authScheme, subject, cbData):
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"""Dispatches events to python user domain graphics 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), phase, localAddr, remoteAddr, authScheme, subject, opaque)
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return 0
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except AttributeError:
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pass
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def dispatchDomainEventBlockPullCallback(self, dom, path, status, cbData):
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"""Dispatches events to python user domain blockPull 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), path, status, 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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return ret
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