def process(self):
"""@return L{IKittProcess} provider"""
#work around constructor and allow a process to appear to die
if not hasattr(self, '_process'):
#adapt this model to a IKittProcess
self._process = IKittProcess(self)
elif self._process.pid != self.pid or not self._process.running:
if config.HOSTNAME == self.server.hostname:
AppProcess.delete(
self) #take ourself out of serialization loop
self._process = IKittNullProcess(
self) #continue to work for any other refs
return self._process
def process(self):
"""The process object contained by this application instance
@raise InvalidProcess
@return (instance of AppProcess)
"""
if not hasattr(self, '_process'):
#try to grab a live process, on exception grab a NullProcess
try:
assert self.pid #save the scan attempt
self._process = IDroneModelAppProcess(self)
except:
self._process = IKittNullProcess(
self) #should be a NullProcess
elif IDroneModelAppProcess.providedBy(self._process) and not \
AppProcess.isValid(self._process):
self._process = IKittNullProcess(self)
#keep the journal up to date
self.info.update({
'pid': self._process.pid,
'inode': self._process.inode,
})
return self._process
