So I really can't see a way of isolating the user from the thread system. We'd need to share every variable at the callback and every variable at the program(to be acesible from the callback) dymanically.

You're saying that you want to share all user code variables with all the threads, but without the user being concerned with the fact that they are shared, nor even knowing that they are using threads at all. Sorry, but that simply isn't possible. Not with any technology I am aware of, and certainly not with Perl.

That said, I think this is a genuine case of the notorious XY problem. That is, you are asking how to implement what you perceive is the solution to the problem, rather than describing the problem and asking how it might be solved.

If you would start by posting a simple worked example of an application, from the user perspective, that talks to two servers (or clients) and demonstrates how you envisage them interacting, then an alternative solution may be apparent. Just describe the application, and how you would like the user visible API to e used to fulfill that application and forget about how it might be implemented. From that we'll see if we can't come up with something that could work for you.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
"Too many [] have been sedated by an oppressive environment of political correctness and risk aversion."

In reply to Re^5: Thread-safe modules and callbacks by BrowserUk
in thread Thread-safe modules and callbacks by Saladino

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