This is a Ruby module which provides file locking mechanism. The module FileLock implements two classes: LockFile and LockedFile; the class LockFile deals with so-called lockfiles, and the class LockedFile offer a high-level interface to deal with both regular files and lockfiles at the same time. To be portable, a small C extension is used to minimize the time between existence check of a lockfile and its creation. Author: Clemens Hintze WWW: http://www.ruby-lang.org/en/raa-list.rhtml?name=filelock