File system, control method, and program

摘要

A file system which operates on an operating system has: an access executing unit which, when an access such as writing or reading to/from a file occurs, processes the file in accordance with the access; a user defined process holding unit which holds a user defined process which has previously been defined by the user; and a defined process executing unit which executes the user defined process by using the access to the file as a trigger.