在python中实现强制关闭线程的示例

如下所示：

import threading
import time
import inspect
import ctypes


def _async_raise(tid, exctype):
  """raises the exception, performs cleanup if needed"""
  tid = ctypes.c_long(tid)
  if not inspect.isclass(exctype):
   exctype = type(exctype)
  res = ctypes.pythonapi.pythreadstate_setasyncexc(tid, ctypes.py_object(exctype))
  if res == 0:
   raise valueerror("invalid thread id")
  elif res != 1:
   # """if it returns a number greater than one, you're in trouble, 
   # and you should call it again with exc=null to revert the effect""" 
   ctypes.pythonapi.pythreadstate_setasyncexc(tid, none)
   raise systemerror("pythreadstate_setasyncexc failed")


def stop_thread(thread):
  _async_raise(thread.ident, systemexit)


class testthread(threading.thread):
  def run(self):
   print
   "begin"
   while true:
     time.sleep(0.1)
   print('end')


if __name__ == "__main__":
  t = testthread()
  t.start()
  time.sleep(1)
  stop_thread(t)
  print('stoped') 

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