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Mini Shell
Mini Shell
"""
This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Copyright © 2019 Cloud Linux Software Inc.
This software is also available under ImunifyAV commercial license,
see <https://www.imunify360.com/legal/eula>
This module implement inactivity tracker for ImunifyAV to automaticaly
shutdown the process when it is idle for certain time (no RPC calls and
long running tasks).
"""
import time
from contextlib import contextmanager, suppress
from logging import getLogger
logger = getLogger(__name__)
class InactivityTracker:
def __init__(self):
self._last_action_timestamp = time.monotonic()
self._long_action_counter = 0
self._long_actions_list = []
self._timeout = 0
def __str__(self):
return "Time from last action is {}, long actions {}".format(
time.monotonic() - self._last_action_timestamp,
self._long_actions_list
)
@contextmanager
def task(self, name):
self.start(name)
try:
yield
finally:
self.stop(name)
def reset_timer(self):
self._last_action_timestamp = time.monotonic()
def start(self, name):
self._long_action_counter += 1
self._long_actions_list.append(name)
self.reset_timer()
def stop(self, name):
self._long_action_counter -= 1
with suppress(ValueError):
self._long_actions_list.remove(name)
self.reset_timer()
def is_timeout(self):
return (
(not self._long_action_counter)
and (
self._last_action_timestamp
+ self._timeout <= time.monotonic()
)
)
def set_timeout(self, timeout: int) -> None:
self._timeout = timeout
track = InactivityTracker()
Zerion Mini Shell 1.0