def on_ready_success(proto):
worker.pid = proto.transport.pid
worker.status = 'started'
worker.started = datetime.utcnow()
self.log.info("{worker} with ID '{id}' and PID {pid} started",
worker=worker_logname,
id=worker.id,
pid=worker.pid)
self._node._reactor.addSystemEventTrigger(
'before',
'shutdown',
self._cleanup_worker,
self._node._reactor,
worker,
)
# directory watcher
#
if 'watch' in options:
if HAS_FSNOTIFY:
# assemble list of watched directories
watched_dirs = []
for d in options['watch'].get('directories', []):
watched_dirs.append(
os.path.abspath(os.path.join(self._node._cbdir,
d)))
worker.watch_timeout = options['watch'].get('timeout', 1)
# create a directory watcher
worker.watcher = DirWatcher(dirs=watched_dirs,
notify_once=True)
# make sure to stop the background thread running inside the
# watcher upon Twisted being shut down
def on_shutdown():
worker.watcher.stop()
self._node._reactor.addSystemEventTrigger(
'before', 'shutdown', on_shutdown)
# this handler will get fired by the watcher upon detecting an FS event
def on_fsevent(evt):
worker.watcher.stop()
proto.signal('TERM')
if options['watch'].get('action', None) == 'restart':
self.log.info("Restarting guest ..")
# Add a timeout large enough (perhaps add a config option later)
self._node._reactor.callLater(
worker.watch_timeout, self.start_guest, id,
config, details)
# Shut the worker down, after the restart event is scheduled
worker.stop()
# now run the watcher on a background thread
deferToThread(worker.watcher.loop, on_fsevent)
else:
self.log.warn(
"Warning: cannot watch directory for changes - feature DirWatcher unavailable"
)
# assemble guest worker startup information
#
started_info = {
'id': worker.id,
'status': worker.status,
'started': utcstr(worker.started),
'who': worker.who
}
self.publish(started_topic,
started_info,
options=PublishOptions(exclude=[details.caller]))
return started_info
def on_ready_success(proto):
worker.pid = proto.transport.pid
worker.status = 'started'
worker.started = datetime.utcnow()
log.msg("{} with ID '{}' and PID {} started".format(
worker_logname, worker.id, worker.pid))
## directory watcher
##
if 'watch' in options:
if HAS_FSNOTIFY:
## assemble list of watched directories
watched_dirs = []
for d in options['watch'].get('directories', []):
watched_dirs.append(
os.path.abspath(os.path.join(self._node._cbdir,
d)))
## create a directory watcher
worker.watcher = DirWatcher(dirs=watched_dirs,
notify_once=True)
## make sure to stop the background thread running inside the
## watcher upon Twisted being shut down
def on_shutdown():
worker.watcher.stop()
reactor.addSystemEventTrigger('before', 'shutdown',
on_shutdown)
## this handler will get fired by the watcher upon detecting an FS event
def on_fsevent(evt):
worker.watcher.stop()
proto.signal('TERM')
if options['watch'].get('action', None) == 'restart':
log.msg("Restarting guest ..")
reactor.callLater(0.1, self.start_guest, id,
config, details)
## now run the watcher on a background thread
deferToThread(worker.watcher.loop, on_fsevent)
else:
log.msg(
"Warning: cannot watch directory for changes - feature DirWatcher unavailable"
)
## assemble guest worker startup information
##
started_info = {
'id': worker.id,
'status': worker.status,
'started': utcstr(worker.started),
'who': worker.who
}
self.publish(started_topic,
started_info,
options=PublishOptions(exclude=[details.caller]))
return started_info