NAME

       SHARYANTO::File::Flock - Yet another flock module

VERSION

       version 0.53

SYNOPSIS

        use SHARYANTO::File::Flock;

        # try to acquire exclusive lock. if fail to acquire lock within 60s, die.
        my $lock = SHARYANTO::File::Flock->lock($file);

        # explicitly unlock
        $lock->release;

        # automatically unlock if object is DESTROY-ed.
        undef $lock;

DESCRIPTION

       This is yet another flock module. It is a more lightweight alternative to File::Flock with
       some other differences:

       •   OO interface only

       •   Autoretry (by default for 60s) when trying to acquire lock

           I prefer this approach to blocking/waiting indefinitely or failing immediately.

METHODS

   $lock = SHARYANTO::File::Flock->lock($path, \%opts)
       Acquire an exclusive lock on $path. $path will be created if not already exists. If $path
       is already locked by another process, will retry (by default for 60 seconds). Will die if
       failed to acquire lock.

       Will automatically unlock if $lock goes out of scope. Upon unlock, will remove $path if it
       was created and is still empty (this behavior is the same as File::Flock).

       Available options:

       •   retries => INT (default: 60)

           Number of retries (equals number of seconds, since retry is done every second).

   $lock->unlock
       Unlock.

   $lock->release
       Synonym for unlock().

CAVEATS

       Not yet tested on Windows. Some filesystems do not support inode?

SEE ALSO

       File::Flock

       File::Flock::Tiny which is also tiny, but does not have the autoremove and autoretry
       capability which I want. See also:
       https://github.com/trinitum/perl-File-Flock-Tiny/issues/1

       flock() Perl function.

AUTHOR

       Steven Haryanto <stevenharyanto@gmail.com>

COPYRIGHT AND LICENSE

       This software is copyright (c) 2013 by Steven Haryanto.

       This is free software; you can redistribute it and/or modify it under the same terms as
       the Perl 5 programming language system itself.

FUNCTIONS

       None are exported by default, but they are exportable.