def force_cancel(self):
"""Force the action and any depended actions to cancel.
If the action or any depended actions are in status 'INIT', 'WAITING',
'READY', 'RUNNING', or 'WAITING_LIFECYCLE_COMPLETION' immediately
update their status to cancelled. This should only be used if an action
is stuck/dead and has no expectation of ever completing.
:raises: `ActionImmutable` if the action is in an unchangeable state
"""
expected = (self.INIT, self.WAITING, self.READY, self.RUNNING,
self.WAITING_LIFECYCLE_COMPLETION)
if self.status not in expected:
raise exception.ActionImmutable(id=self.id[:8],
expected=expected,
actual=self.status)
LOG.debug('Forcing action %s to cancel.', self.id)
self.set_status(self.RES_CANCEL, 'Action execution force cancelled')
depended = dobj.Dependency.get_depended(self.context, self.id)
if not depended:
return
for child in depended:
# Force cancel all dependant actions
action = self.load(self.context, action_id=child)
if action.status in (action.INIT, action.WAITING, action.READY,
action.RUNNING,
action.WAITING_LIFECYCLE_COMPLETION):
LOG.debug('Forcing action %s to cancel.', action.id)
action.set_status(action.RES_CANCEL,
'Action execution force cancelled')
def signal_cancel(self):
"""Signal the action and any depended actions to cancel.
If the action or any depended actions are in status
'WAITING_LIFECYCLE_COMPLETION' or 'INIT' update the status to cancelled
directly.
:raises: `ActionImmutable` if the action is in an unchangeable state
"""
expected = (self.INIT, self.WAITING, self.READY, self.RUNNING,
self.WAITING_LIFECYCLE_COMPLETION)
if self.status not in expected:
raise exception.ActionImmutable(id=self.id[:8],
expected=expected,
actual=self.status)
ao.Action.signal(self.context, self.id, self.SIG_CANCEL)
if self.status in (self.WAITING_LIFECYCLE_COMPLETION, self.INIT):
self.set_status(self.RES_CANCEL, 'Action execution cancelled')
depended = dobj.Dependency.get_depended(self.context, self.id)
if not depended:
return
for child in depended:
# Try to cancel all dependant actions
action = self.load(self.context, action_id=child)
if not action.is_cancelled():
ao.Action.signal(self.context, child, self.SIG_CANCEL)
# If the action is in WAITING_LIFECYCLE_COMPLETION or INIT update
# the status to CANCELLED immediately.
if action.status in (action.WAITING_LIFECYCLE_COMPLETION,
action.INIT):
action.set_status(action.RES_CANCEL,
'Action execution cancelled')