websocket消息可以无序到达吗？ [英] Can websocket messages arrive out-of-order?

问题描述

如果我们通过相同的html5 websocket发送两条消息，并且距离彼此相距毫秒，那么

理论上消息的到达顺序可能与他们被发送了？

解决方案

简短回答：不。

回答：

WebSocket在TCP上运行，所以在这个级别@EJP的答案适用。 WebSocket可以被中介（如WS代理）拦截：可以对WebSocket控制帧（即WS ping / pong）进行重新排序，但是当没有WebSocket扩展时，不允许消息帧。如果有一个原则上允许重新排序的neogiated扩展，那么中介只有在理解扩展和适用的重新排序规则时才可以这样做。

If we send two messages over the same html5 websocket a split millisecond apart from each other,

Is it theoretically possible for the messages to arrive in a different order than they were sent?

解决方案

Short answer: No.

Long answer:

WebSocket runs over TCP, so on that level @EJP 's answer applies. WebSocket can be "intercepted" by intermediaries (like WS proxies): those are allowed to reorder WebSocket control frames (i.e. WS pings/pongs), but not message frames when no WebSocket extension is in place. If there is a neogiated extension in place that in principle allows reordering, then an intermediary may only do so if it understands the extension and the reordering rules that apply.

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