Boost has libraries for each of these three: sockets through the ASIO library, IPC through the Interprocess library, and threads through the threads library.

http://www.boost.org

The only thing that Boost is lacking for which you asked is a database library.

I'm a marathoner who spends quite a bit of time playing video games.

Do I get a tax deduction for the hours I spend running?

[Citation Needed]