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Communication between threads

 
John Vorwald
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Hi,
Boy, I'm going to have a tough time asking this question, because I'm not sure what the problem is, or how to make a simple example.
I have a reasonably large program based on a model-view-controller construct, where the models, views, and controller are on different threads.
I have just recently gotten a computationally intensive portion of the code working with multiple treads using ExecutorCompletionService.
The computationally intensive routines are in the model portion, and during execution communicate progress to the controller / views / other models with a variable fControllers. So there are blocks of code like

I'm wondering, do I need to implement sychronization of fControllers? and how to do it?

John
 
John Vorwald
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Never mind with this question. I put in the synchronized block on fControllers, with no change in error. I need to dig deeper to understand the source / cause of the problem.
The code was running in test mode of the computationally intensive multithread potion, and now I've started to use the complete program again, and am getting errors in the view. Possibly I made some change that needs to be accounted for in the view...
 
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