Blueprint repeating timer halts program

Unreal Engine Programming & Scripting Blueprint
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#1

I created a tcp client in c++ and am using it in a blueprint. I call the receive function periodically with “set timer by function” block at 0.5 seconds. The receive function has a timeout of 1 ms, so it won’t block for long.

I am able to receive messages and act on them, but the rest of the program halts and is unresponsive while it is receiving messages. If I close the socket then the rest of the program runs ok.

How can I run a function in the blueprint periodically without blocking the rest of the program while it is waiting?

#2

I think TCP by definition is a blocking process but maybe you could run it in a new thread to keep it from blocking the rest of your executable.

#3

The TCP receive is only blocking for 1 ms. The set timer by function that is being used to trigger the receive twice a second is blocking the game thread… is there a non-blocking wait function?

#4

So it’s not the TCP blocking that’s making a noticeable delay in your game, it’s the Timer function, or the part that sets the timer.

Can you show your code/blueprint for that part? Maybe we can figure it out by looking that over.