ZFS_Snapshot_Manager/zfssmd_worker.py

33 lines
1.1 KiB
Python

import time
import threading
import Pyro4
import logging as log
DEFAULT_REFRESH_INTERVAL=(5 * 60)
PYRO4_URI="PYRO:058b7dde9ec53de9235cfc57a07ce17a9eabfce3@./u:/run/zfssmd.sock"
class ZFSSMDaemonRefresh(object):
"""
Spawns as thread to the daemon. Requests snapshot list refresh on interval.
"""
def __init__(self, interval=DEFAULT_REFRESH_INTERVAL, uri=PYRO4_URI):
"""
starts the thread
:param interval: interval to perform a request to daemon
:param uri: uri returned by Pyro4 daemon on launch
"""
self.interval = interval
self.uri = uri
thread = threading.Thread(target=self.run, args=())
thread.daemon = True
thread.start()
def run(self):
while True:
## FIXME Rework it as root process cursor if it's even possible to avoid RPC. For now it's not bad.
_uri = self.uri
zfssmd_connection = Pyro4.Proxy(_uri)
last_ref = zfssmd_connection.call_zfs_list_snapshots()
log.debug("Refreshed list " + str(last_ref))
time.sleep(self.interval)