def start_ticker(self):
log.info("Ticking every %ss." % self.tick_interval)
tock = False
while True:
log.debug("Tock." if tock else "Tick.")
# TODO: timestamp here instead of 1, for debugging?
self.redis.rpush(self.tick_key, 1)
sleep(self.tick_interval)
tock = not tock
def start_ticker(self):
log.info('Ticking every %ss.' % self.tick_interval)
tock = False
while True:
log.debug('Tock.' if tock else 'Tick.')
# TODO: timestamp here instead of True, for debugging?
self.redis.rpush(self.tick_key, True)
sleep(self.tick_interval)
tock = not tock
def save_snapshot(self):
log.info("Saving snapshot: %s" % self.snapshot_path)
child_pid = os.fork()
if not child_pid:
f = tempfile.NamedTemporaryFile(delete=False)
snapshot = self.snapshot_serializer.serialize(
{"entities": [e.to_dict() for e in self.all()]}
)
# if self.config['persistence'].get('compressed'):
# snapshot = zlib.compress(snapshot)
f.write(snapshot)
f.close()
shutil.move(f.name, self.snapshot_path)
os._exit(os.EX_OK)
def save_snapshot(self):
log.info('Saving snapshot: %s' % self.snapshot_path)
child_pid = os.fork()
if not child_pid:
f = tempfile.NamedTemporaryFile(delete=False)
snapshot = self.snapshot_serializer.serialize({
'entities': [e.to_dict() for e in self.all()]
})
# if self.config['persistence'].get('compressed'):
# snapshot = zlib.compress(snapshot)
f.write(snapshot)
f.close()
shutil.move(f.name, self.snapshot_path)
os._exit(os.EX_OK)
def start(self):
try:
self.redis.ping()
except ConnectionError as e:
fatal("Redis error: %s" % e.message)
self.running = True
log.info("Listening.")
# Clear any existing tick events
self.redis.ltrim(self.tick_key, 0, 0)
try:
while self.running:
self.process_one_event()
except Exception as e:
log.critical(traceback.format_exc())
except BaseException as e:
pass
finally:
self.save_snapshot()
def start(self):
try:
self.redis.ping()
except ConnectionError as e:
fatal("Redis error: %s" % e.message)
self.running = True
log.info('Listening.')
# Clear any existing tick events
self.redis.ltrim(self.tick_key, 0, 0)
try:
while self.running:
self.process_one_event()
except Exception as e:
log.critical(traceback.format_exc())
except BaseException as e:
pass
finally:
self.save_snapshot()
def load_snapshot(self):
if not os.path.exists(self.snapshot_path):
return False
log.info("Loading snapshot: %s" % self.snapshot_path)
with open(self.snapshot_path, "r") as f:
snapshot = f.read()
# if self.config['persistence'].get('compressed'):
# snapshot = zlib.decompress(snapshot)
snapshot = self.snapshot_serializer.unserialize(snapshot)
log.info("Creating entities...")
for entity_dict in snapshot["entities"]:
entity = Entity.from_dict(
{"id": entity_dict["id"], "hearing": entity_dict["hearing"]}, self
)
self._max_id = max(self._max_id, entity.id)
log.info("Creating components...")
for entity_dict in snapshot["entities"]:
entity = self.get(entity_dict["id"])
entity.attach_from_dict(entity_dict)
return True
def load_snapshot(self):
if not os.path.exists(self.snapshot_path):
return False
log.info('Loading snapshot: %s' % self.snapshot_path)
with open(self.snapshot_path, 'r') as f:
snapshot = f.read()
# if self.config['persistence'].get('compressed'):
# snapshot = zlib.decompress(snapshot)
snapshot = self.snapshot_serializer.unserialize(snapshot)
log.info('Creating entities...')
for entity_dict in snapshot['entities']:
entity = Entity.from_dict({
'id': entity_dict['id'],
'hearing': entity_dict['hearing'],
}, self)
self._max_id = max(self._max_id, entity.id)
log.info('Creating components...')
for entity_dict in snapshot['entities']:
entity = self.get(entity_dict['id'])
entity.attach_from_dict(entity_dict)
return True
