1 """ 2 Kill a thread, from http://sebulba.wikispaces.com/recipe+thread2 3 """ 4 import six 5 try: 6 import ctypes 7 except ImportError: 8 raise ImportError( 9 "You cannot use paste.util.killthread without ctypes installed") 10 if not hasattr(ctypes, 'pythonapi'): 11 raise ImportError( 12 "You cannot use paste.util.killthread without ctypes.pythonapi") 13 14 def async_raise(tid, exctype): 15 """raises the exception, performs cleanup if needed. 16 17 tid is the value given by thread.get_ident() (an integer). 18 Raise SystemExit to kill a thread.""" 19 if not isinstance(exctype, (six.class_types, type)): 20 raise TypeError("Only types can be raised (not instances)") 21 if not isinstance(tid, int): 22 raise TypeError("tid must be an integer") 23 res = ctypes.pythonapi.PyThreadState_SetAsyncExc(ctypes.c_long(tid), ctypes.py_object(exctype)) 24 if res == 0: 25 raise ValueError("invalid thread id") 26 elif res != 1: 27 # """if it returns a number greater than one, you're in trouble, 28 # and you should call it again with exc=NULL to revert the effect""" 29 ctypes.pythonapi.PyThreadState_SetAsyncExc(ctypes.c_long(tid), 0) 30 raise SystemError("PyThreadState_SetAsyncExc failed") 31
