This is your lame attempt to understand how those Network Virtual Functions sofware works as well to sharpen your understanding on C++ and C programming language.

Hints

Compile using g++ for the file watcher

To trace the function calls on FreeBSD based system use truss() instead of strace.

The kqueue_socket.c is my attempt on create a socket watcher timer program using kevent.


    struct kevent my_event;
    struct kevent my_change;

    EV_SET(&my_change, ...); // Initialize the kevent

    for(;;){

        ...;

    }

Goal

Understand the difference between c++ and C
Understand how strcuct works and the difference between it on c++ and C
Understand

Issues

Modification to target file only detected after 2 or more interrupt