Need help with network connection handling techniques?

Question

Computer networks

Hello. This is the question: what are the select,poll,epoll processing methods? Is it something like certain types of server building architectures or not? Anyone with resources on this would be very grateful.

Answer 1

These are variants of asynchronous connection processing. In principle, all three do the same thing with varying degrees of efficiency.
Actually, these are all 3 POSIX system calls: select (), poll (), epoll ().
select is the oldest one, followed by poll() and epoll().
You can google the differences.

Answer 2

select _{( wikipedia )} , poll are API functions in Unix systems (included in the POSIX standard) that allow one thread to wait for the completion of many I / O operations, that is, to perform asynchronous I / O.
epoll _{( wikipedia )} is a more modern Linux version of pool.