python中qthread多线程终止任务的问题

Question

任务WORK在thread里面运行后，如果想停止任务（而不是简单终止线程），用线程安全的方式用槽信号来触发任务停止条件时，不起作用，因为线程内需要等任务（dowork）自然完成后，才会接收其他槽信号队列。如果直接用跨线程的方式执行实例self.work.stop，反而能够立即停止任务。只是隐约感觉这种方式不太正规，请问有没有其他方式？

class Work(QObject):
   update_process = pyqtSignal(int)
   update_completed = pyqtSignal()

   .....ini_thing....

   def dowork(self):
       self.var = 0
       while self.var < 10 and self._running == True
          self.var += 1
          self.update_process.emit(self.var)
       self.update_completed.emit()  # -----------任务结束

   def stopwork(self):
       self._running = false

class UiTest(QDialog):
   .....UI-thing....

  self.work = Work()
  self.thread = QThread()
  self.work.moveToThread(self.thread)

  self.thread.started.connect(self.work.dowork)
  self.work.update_process.connect(self.currentStep.setValue)
  self.worker.update_completed.connect(lambda:print('work finished'))

  self.btnDoWork.clicked.connect(self.work.dowork)
1. self.btnStopWork.clicked.connect(self.work.stopwork)[/color] -- 通过槽触发任务
2. self.btnStopWork.clicked.connect(self.stopwork)[/color] -- 直接跨线程介入任务

  self.btnStopThread.clicked.connect(self.stop_thread)
  self.btnStartThread.clicked.connect(self.start_thread)
  self.thread.finished.connect(lambda: print('thread finished'))

  def start_thread(self):
     self.thread.start()
 def stop_thread(self):
     self.thread.quit()
     self.thread.wait()

** def stop_work(self): -------------直接跨线程介入任务
     self.work.stopwork**


。。。。APP Thing。。。。。。。

Answer 1

https://q.cnblogs.com/q/127487/