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Asked: 2026-05-18T22:24:45+00:00

I’m trying to understand multi-threading in TCP so I’m coding a basic telnet text

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I’m trying to understand multi-threading in TCP so I’m coding a basic telnet text “router”.

using ReadLine() each thread using a TCP listener will wait for input from the telnet client and then respond based on the text which is sent. I have this working with multiple threads and multiple telnet clients.

I want to conditionally send messages to all threads.
For example, if the text sent from any one thread is “Alert!” then I want every thread for connected clients to execute WriteLine("Alert!")

Does this make sense?
My problem is that I don’t know how to make one thread raise an event in another thread.

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1 Answer

  1. Editorial Team

    You need to look at a Event Broker pattern. Basically you would have one object with an event that all your threads subscribe to. It will also have a method that can be called which will invoke the event. It maybe sounds complicated, but its fairly simple.

    Example code is here http://msforge.net/blogs/paki/archive/2007/11/20/EventBroker-implementation-in-C_2300_-full-source-code.aspx.

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