python-tools/voidpp_tools/timer.py at master · voidpp/python-tools · GitHub

History

51 lines (40 loc) · 1.33 KB

Raw

from threading import Thread, Event

import logging

logger = logging.getLogger(__name__)

class RunnerThread(Thread):

def __init__(self, callback):

super(RunnerThread, self).__init__()

self.__callback = callback

def run(self):

try:

self.__callback()

except:

logger.exception("Error occured during timer callback run")

class Timer(Thread):

"""

Simple repeating timer.

"""

def __init__(self, interval, callback):

super(Timer, self).__init__()

self.interval_event = Event()

self.main_event = Event()

self.interval = interval

self.callback = callback

self.daemon = True # stop if the program exits

# start the thread (not the timer...)

super(Timer, self).start()

def run(self):

while self.main_event.wait():

while not self.interval_event.wait(self.interval):

runner = RunnerThread(self.callback)

runner.setDaemon(True)

runner.start()

def start(self, interval = None):

if interval is not None:

self.interval = interval

self.interval_event.clear()

self.main_event.set()

def is_running(self):

return not self.interval_event.is_set()

def stop(self):

self.interval_event.set()

python-tools/voidpp_tools/timer.py at master · voidpp/python-tools · GitHub

Expand file tree

Breadcrumbs

timer.py

Latest commit

History

Breadcrumbs

timer.py

File metadata and controls