在SignalR中，Hub.Context线程安全吗? [英] In SignalR is Hub.Context thread safe?

问题描述

如果同时有多个来自不同客户端的请求，则Hub.Context.ConnectionId的值在处理程序执行期间会更改.

If there is more than one request occurring from different clients simultaneously then the value of Hub.Context.ConnectionId changes during the execution of the handler.

说我有2个与客户端ID A和B连接的客户端，并且我的Hub上有一个名为foo()的方法.我从A发送一个请求到服务器，调用foo()，然后在处理来自A的请求的同时，我从B发送一个请求，调用foo().在处理A的请求开始时，Hub.Context.ConnectionId == A，但在方法结束时，调用Hub.Context.ConnectionId == B.

Say I've got 2 clients connected with client Ids A and B, and I've got a method on my Hub called foo(). I send a request from A to the Server invoking foo(), then whilst the request from A is being processed I send a request from B invoking foo(). At the start of the processing of A's request Hub.Context.ConnectionId == A but at the end of the method call Hub.Context.ConnectionId == B.

我应该复制Hub.Context吗?我应该在什么时候这样做?

Should I be copying the Hub.Context? At what point should I do this?

推荐答案

它不需要是线程安全的，因为Hub实例不是静态的，因此您无需复制任何内容.

It doesn't need to be thread safe since Hub instances aren't static so you don't need to copy anything.

它们是根据每次呼叫创建的.因此，来自客户端的每个调用都将创建一个新的Hub实例和HubContext.

They are created per call. So each call from the client will create a new Hub instance and HubContext.

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