如何杀死一个孩子的过程 [英] How to kill a child process

问题描述

我发现了几种杀死子进程的方法.我想使用os.kill(pid).但这不起作用，我想应该可以.

I've found several methods to kill a child process. I would like to use the os.kill(pid). But it doesn't work, I guess it should though.

def onExit():
    os.kill(logProc, 0)
    QtCore.QCoreApplication.instance().quit
    return

button.clicked.connect(onExit)

logProc=os.fork()
if logProc>0:
    proc()

推荐答案

您应该将 signal.SIGKILL (9)， signal.SIGTERM (15)之类的信号传递给终止进程.

You should pass signals like signal.SIGKILL (9), signal.SIGTERM (15) to kill the process.

import signal

...

os.kill(logProc, signal.SIGKILL)

根据Linux kill(2):

如果 sig 为 0 ，则未发送信号，但仍执行错误检查；可以用来检查是否存在进程ID或进程组ID.

If sig is 0, then no signal is sent, but error checking is still performed; this can be used to check for the existence of a process ID orprocess group ID.

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