python 强制关闭线程

Posted 2022-02-03 xiongsheng*

python 强制关闭线程

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("线程开始")
        while True:
            time.sleep(0.1)
            print("线程 进行中")


if __name__ == "__main__":
    t = TestThread()
    t.start()  # 开启启动

    time.sleep(2)  # 等待线程进行2秒时间
    stop_thread(t)  # 结束线程 调用函数即可
    print("线程 结束")

（亲手可测 已用于项目 ）