title: libevent during file deletion/modification
body: <p>Is to possible to use libevent to monitor a file removal/update? </p>
  
  <p>Assuming that /var/log/file.1 is removed I want to report it in my program. Is this possible? If yes, how?</p>
  
  <p>My operating system is Linux and I want to create a demon that fires messages during some operating system actions.</p>
  
  <p>Where can I find more information? </p>