循环似乎打破了命名空间方法中的"发出"事件[gevent-socketio]

Question

因为几天我一直尝试在服务器端进行某种循环而不能成功地允许我定期更新客户端,但似乎如果你把一个循环放入服务器事件方法,它就会停止发送事件到客户端自动.我的直觉是"gevent"(或greenlets)不允许这种行为(只有客户端,使用socket.io的浏览器可以定期向服务器发出,而不是相反).我错了吗？你会如何解决这个问题？是否有可能,如果你做一个循环,与客户端(套接字)的连接会以某种方式丢失？我将附带一个小草案与模式.

// Client (socket.io) [Javascript]

client = io.connect('/space');
client.on('do_something', function (msg) {
    // Do something.
});
client.on('do_another_thing', function (msg) {
   // Do another thing.
});
client.emit('something', msg);


# Server (gevent-socketio) [Python]

@namespace('/space')
class SpaceNamespace:
    def on_something(msg):
        # This WORKS just fine cause it's out the scope of the loop.
        self.emit('do_another_thing', some_operation(msg))
        # This DOES NOT work.
        while True:
            # Each 3 seconds update the client.
            self.emit('do_something', some_operation(msg))
            time.sleep(3)
            # If you put an ipdb here, you can see like the code
            # is executed, but the browser doesn't receive any
            # event.

谢谢!

Answer 1

您将要改变time.sleep(3)到gevent.sleep(3)这是讲个人greenlet睡觉的方式.来自文档:

gevent.sleep(seconds = 0)将当前的greenlet置于休眠状态至少几秒钟.

秒可以指定为整数,或者如果需要小数秒则指定浮点数.以秒为零调用睡眠是表达合作产量的规范方式.