Source code for BAC0.tasks.DoOnce

#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2015 by Christian Tremblay, P.Eng <christian.tremblay@servisys.com>
# Licensed under LGPLv3, see file LICENSE in this source tree.
#
"""
DoOnce.py - execute a task once
"""

from .TaskManager import OneShotTask
from ..core.utils.notes import note_and_log


[docs]@note_and_log class DoOnce(OneShotTask): """ Start a polling task which is in fact a recurring read of the point. ex. device['point_name'].poll(delay=60) """ def __init__(self, fnc): """ :param point: (BAC0.core.device.Points.Point) name of the point to read :param delay: (int) Delay between reads in seconds, defaults = 10sec A delay cannot be < 5sec (there are risks of overloading the device) :returns: Nothing """ if hasattr(fnc, "__call__"): self.func = fnc OneShotTask.__init__(self) else: raise ValueError("You must pass a function to this...")
[docs] def task(self): self.func()