復位定時器，直至取消

Question

我從這個webaddress http://code.activestate.com/recipes/577407-resettable-timer-class-a-little-enhancement-from-p/

複製的代碼創建一個復位定時器，它工作得很好，但一旦完成結束。我想再次開始，但我是新的，並不能解決如何做到這一點。

在run（）函數的行之後的底部我累了創造自己的新實例：

print "Time: %s - timer finished!" % time.asctime() 

但蟒蛇似乎並不喜歡它。

由渦雅各創建拷貝粘貼代碼是這樣的：

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() 

     self.resetted = True 
     self.finished.set() 
     self.finished.clear() 

我用跑我定時器：

tim = TimerReset(10, AddBlank) 
tim.start() 

功能AddBlank做一些事情，但我想計時器再次調用但只有在它結束後。真的很感謝幫助，這一點，我知道複製代碼，而不理解它是不好的做法，但我真的只是想簡單的復位定時器可重複調用一個函數，除非重置，這幾乎做到這一點。

Answer 1

更改run功能：

def run(self): 
    while not self.finished.isSet(): 
     print "Time: %s - timer running..." % time.asctime() 

     self.resetted = True 
     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) 
    print "Time: %s - timer finished!" % time.asctime() 

這將導致直到finished設置其無限期投放。