file locking with fcntl(2)
File::FcntlLock is a module to do file locking in an object oriented fashion using the fcntl(2) system call. This allows locks on parts of a file as well as on the whole file and overcomes some known problems with flock(2), on which Perls flock() function is based per default.
Maintainer: Renaud Allard <renaud@allard.it>