Well, I'm not critizising iThreads if that is what worries you (I didn't even knew that iThreads was the thread model of perl), It's a pity that my lack of knowledge on the english language doesn' allow me to express the way i wanted but i really think that you should be more sure about things before blaming anyone of whatever you think.
Apart from that, my question here was trying to involve more that the actual solution to my problem. I was trying to see solutions for that kind of problems. Maybe my approach wasn't a good one.