bootsteps.py 文件源码

def start(self, parent):
        self._set_node_uuid()
        super(FastDaemon, self).start(parent)
        self.vm_status_queue = Queue()
        self.vm_status_watcher = Popen(self.SYSEVENT, bufsize=0, close_fds=True, stdout=PIPE, stderr=STDOUT,
                                       preexec_fn=os.setsid)
        self.vm_status_monitor_thread = Thread(target=self._vm_status_monitor, name='VMStatusMonitor',
                                               args=(self.vm_status_watcher.stdout,))
        self.vm_status_monitor_thread.daemon = True
        self.vm_status_monitor_thread.start()
        self.vm_status_dispatcher_thread = Thread(target=self._vm_status_dispatcher, name='VMStatusDispatcher')
        self.vm_status_dispatcher_thread.daemon = True
        self.vm_status_dispatcher_thread.start()