scalable directory/file change notification

 This module implements an interface to the Linux 2.6.13 and later Inotify
 file/directory change notification sytem.
 .
 It has a number of advantages over the Linux::Inotify module:
  - it is portable (Linux::Inotify only works on x86)
  - the equivalent of fullname works correctly
  - it is better documented
  - it has callback-style interface, which is better suited for
 integration.