Description: ECHO server based on libev. Accept new connection, receive data and send it back to connected client. How to run: make & ./echo_srv [port_number], where port_number port which server will listen for a new connections. Default port number - 1025. For a stop execution, just press: <Ctrl+C> keys combination. Required libev for compilation and work. Author: Andrey Andruschenko <apofiget@gmail.com> License: Public domain Blog post: http://fpbrain.blogspot.com/2016/11/echo-libev.html