launch_gui.py 文件源码

def stop(self, force=False):
        if self.process is not None:

            if not force:
                msg = QMessageBox()
                msg.setIcon(QMessageBox.Warning)
                msg.setWindowTitle('Confirm process termination')
                msg.setText(
                    'This will terminate the running process. Are you sure '
                    'you want to do this?')
                msg.setInformativeText(
                    'Interrupting the process may leave partly '
                    'created files that cannot be used for '
                    'further analysis.')
                msg.addButton('Stop process', QMessageBox.YesRole)
                cancel_button = msg.addButton('Cancel', QMessageBox.NoRole)
                msg.setDefaultButton(cancel_button)
                msg.exec_()
                if msg.clickedButton() == cancel_button:
                    # Continue to run
                    return

            self._interrupted = True
            # Terminate child processes as well
            pid = int(self.process.pid())
            if sys.platform == 'win32' and pid != 0:
                # The returned value is not a PID but a pointer
                lp = ctypes.cast(pid, LPWinProcInfo)
                pid = lp.contents.dwProcessID

            if pid != 0:
                process = psutil.Process(pid)
                children = process.children(recursive=True)
                for proc in children:
                    proc.terminate()
                gone, alive = psutil.wait_procs(children, timeout=3)
                for proc in alive:
                    proc.kill()

                self.process.terminate()
                self.process = None