按接收顺序处理WebSockets消息 [英] Processing WebSockets messages in order of receiving

问题描述

我的应用程序的客户端部分需要严格按顺序处理WebSocket消息。不幸的是，每条消息的处理时间很长（大约3秒），因此在第一条消息结束之前会出现另一条消息。在几条消息之后，订单完全不同。如何在JavaScript中解决这个问题。

Client side part of my application needs to process WebSocket messages in strict order. Unfortunately each message is processed quite long (about 3 seconds), so another appears before the first one has ended. After few messages the order is totally different. How to solve this problem in JavaScript.

我想到了一个任务队列，但我不知道如何实现它以阻止我的Web应用程序的GUI。 / p>

I thought about a task queue, but I don't know how to implement it to not block GUI of my web app.

推荐答案

此时，浏览器中的WebSocket API不会公开基于框架的或流选项/ API。所以实际上没有选择来实现本地。

At this time, the WebSocket API in browsers does not expose a frame based or streaming option/API. So there is not really an option to accomplish this natively.

这意味着您需要在数据包中创建自己的逻辑/结构'从您的服务器发送到客户端。这应该是一个相对容易的任务，我可以考虑传输简化的 JSON字符串/对象，它可能在顶层有索引属性。

That means you need to create your own logic / structure within the data packets you're sending from your server to clients. That should be a relatively easy task, I could think of transmitting simpl JSON strings/objects which might have a indexed property on top level.

{
    packetIndex: 0,
    data: { }
}

并且您的客户端脚本需要查看每个到达的数据包并正确排序（跟踪已到达的数据包和保持+等待，如果数据包包含索引太高了抵达）

and your client script would need to look into each arriving packet and sort things out correctly (keeping track of arrived packets and "hold + wait" if a packet with a too high indexed arrived)

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