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"""
SleekXMPP: The Sleek XMPP Library
Implementation of xeps for Internet of Things
http://wiki.xmpp.org/web/Tech_pages/IoT_systems
Copyright (C) 2013 Sustainable Innovation, Joachim.lindborg@sust.se, bjorn.westrom@consoden.se
This file is part of SleekXMPP.
See the file LICENSE for copying permission.
"""
from threading import Thread, Event, Timer
import time
def TimerReset(*args, **kwargs):
""" Global function for Timer """
return _TimerReset(*args, **kwargs)
class _TimerReset(Thread):
"""Call a function after a specified number of seconds:
t = TimerReset(30.0, f, args=[], kwargs={})
t.start()
t.cancel() # stop the timer's action if it's still waiting
"""
def __init__(self, interval, function, args=[], kwargs={}):
Thread.__init__(self)
self.interval = interval
self.function = function
self.args = args
self.kwargs = kwargs
self.finished = Event()
self.resetted = True
def cancel(self):
"""Stop the timer if it hasn't finished yet"""
self.finished.set()
def run(self):
#print "Time: %s - timer running..." % time.asctime()
while self.resetted:
#print "Time: %s - timer waiting for timeout in %.2f..." % (time.asctime(), self.interval)
self.resetted = False
self.finished.wait(self.interval)
if not self.finished.isSet():
self.function(*self.args, **self.kwargs)
self.finished.set()
#print "Time: %s - timer finished!" % time.asctime()
def reset(self, interval=None):
""" Reset the timer """
if interval:
#print "Time: %s - timer resetting to %.2f..." % (time.asctime(), interval)
self.interval = interval
else:
#print "Time: %s - timer resetting..." % time.asctime()
pass
self.resetted = True
self.finished.set()
self.finished.clear()
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