Most efficient way to handle a client connection (socket programming)

Question

For every single tutorials and examples I have seen on the internet for Linux/Unix socket tutorials, the server side code always involves an infinite loop that checks for cl

Answer 1

For C++ you could look into boost.asio. You could also look into e.g. asynchronous I/O functions. There is also SIGIO.

Of course, even when using these asynchronous methods, your main program still needs to sit in a loop, or the program will exit.