ithreads

Then I remembered ithreads
Interpreter threads
Introduced in perl 5.6, exposed at the Perl level with perl 5.8
Since they were threads inside a single process, I could have one thread for each socket and still easily pass information from one thread to another
This is what I did
I recompiled perl with support for ithreads and wrote my simulator in Perl
The following will show a few features of ithreads and how I used them in my simulator