Thank you for your reply,what do you mean with native_type ? is a boost function?
It's a member function of asio objects. Eg., calling yourSocket.native_type() gives you a native socket handle. In versions prior ro 1.46 it's called native_handle(), IIRC.
I need to make a multi process TCP Server..so I think it is mandatory to me to "parallelize" the server with process...are you sure that is enough to use the asynchronous model?
Well, I don't know where your requirements come from and what you do in your "process_it()" function. If it's an excercise in making multiple processes with fork(), or if you have heavy processing task and cannot enqueue it to a dedicated thread for some reason -- then you probably don't have a choice. But note that your solution is non-portable and not scalable. Think what happens with your server under high load - say, 10000 incoming requests. Are you sure launching 10000 processes would be a good idea?