How to terminate a thread in Python without loop in run method?

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迷失自我
迷失自我 2021-01-22 09:43

Having class which has a long method.
Creating a thread for that method.
How i can kill\\terminate this thread?
Main problem is that i can\'t check for threa

2条回答
  •  既然无缘
    2021-01-22 10:21

    While it is not a good idea to kill a thread, if you really must do it, the easiest solution is to implement a running semaphor, divide your time consuming method in sub_methods and check for thread status between the submethods.

    Code partly copied from this SO question:

    class StoppableThread(threading.Thread):
        """Thread class with a stop() method. The thread itself has to check
        regularly for the stopped() condition."""
    
        def __init__(self,la_object):
            super(StoppableThread, self).__init__()
            self.la = la_object
            self._stop = threading.Event()
    
        def stop(self):
            self._stop.set()
    
        def stopped(self):
            return self._stop.isSet()
    
        def run(self):
           self.la.time_consuming_action( self.stopped )
    
        class La :
    
          def __init__(self):
          #init here
    
          def time_consuming_action(self, thread_stop_callback ):
    
              sub_work1()
    
              if thread_stop_callback():
                 raise 'Thread Killed ! '
    
              sub_work2()
    
              if thread_stop_callback():
                 raise 'Thread Killed ! '
    
              sub_work3()
    
              #etc...
    

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