def __init__(self, config, etcd_api, status_reporter, hosts_ipset):
super(_FelixEtcdWatcher, self).__init__()
self._config = config
self._etcd_api = etcd_api
self._status_reporter = status_reporter
self.hosts_ipset = hosts_ipset
# Whether we've been in sync with etcd at some point.
self._been_in_sync = False
# Keep track of the config loaded from etcd so we can spot if it
# changes.
self.last_global_config = None
self.last_host_config = None
self.my_config_dir = dir_for_per_host_config(self._config.HOSTNAME)
# Events triggered by the EtcdAPI Actor to tell us to load the config
# and start polling. These are one-way flags.
self.load_config = Event()
self.begin_polling = Event()
# Event that we trigger once the config is loaded.
self.configured = Event()
# Polling state initialized at poll start time.
self.splitter = None
# Next-hop IP addresses of our hosts, if populated in etcd.
self.ipv4_by_hostname = {}
# Forces a resync after the current poll if set. Safe to set from
# another thread. Automatically reset to False after the resync is
# triggered.
self.resync_requested = False
self.dispatcher = PathDispatcher()
# The Popen object for the driver.
self._driver_process = None
# Stats.
self.read_count = 0
self.msgs_processed = 0
self.last_rate_log_time = monotonic_time()
# Register for events when values change.
self._register_paths()
self._usage_report_greenlet = gevent.Greenlet(
self._periodically_usage_report
)
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