Created
July 30, 2014 03:41
-
-
Save zackshen/017caacea4eb4c8433bb to your computer and use it in GitHub Desktop.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import threading | |
| import logging | |
| logger = logging.getLogger('default') | |
| class _TaskThread(threading.Thread): | |
| def __init__(self, interval=1): | |
| threading.Thread.__init__(self) | |
| self._finished = threading.Event() | |
| self._exited = threading.Event() | |
| self._interval = interval | |
| def shutdown(self): | |
| self._finished.set() | |
| def run(self): | |
| while 1: | |
| if self._finished.isSet(): | |
| self._exited.set() | |
| return | |
| self.task() | |
| self._finished.wait(self._interval) | |
| def wait_exit(self): | |
| self._exited.wait() | |
| def task(self): | |
| pass | |
| class Progress(_TaskThread): | |
| def __init__(self, process_name, max_val=95, update_func=None): | |
| super(Progress, self).__init__() | |
| self._process_name = process_name | |
| self._progress = 0 | |
| self._max_progress = max_val | |
| self._update_func = update_func | |
| def __enter__(self): | |
| logger.info('%s start, progress 0%%' % self._process_name) | |
| self._callback() | |
| self.start() | |
| return self | |
| def __exit__(self, type_, value, traceback): | |
| self._progress = self._max_progress | |
| self.shutdown() | |
| self._callback() | |
| self.wait_exit() | |
| logger.info('%s start, progress %d%%' % (self._process_name, self._progress)) | |
| def _callback(self): | |
| if self._update_func: | |
| self._update_func(self._progress) | |
| def task(self): | |
| delta = self._max_progress - self._progress | |
| increment = float(delta) / 15 | |
| self._progress = min(self._progress+increment, self._max_progress) | |
| self._callback() | |
| logger.info('%s progress[%d%%]' % (self._process_name, self._progress)) | |
| @property | |
| def val(self): | |
| return self._progress |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment