Name

IPC::SRLock::Fcntl - Set / reset locks using fcntl

Synopsis

   use IPC::SRLock;

   my $config   = { tempdir => q(path_to_tmp_directory), type => q(fcntl) };

   my $lock_obj = IPC::SRLock->new( $config );

Description

Uses Fcntl to lock access to a disk based file which is read/written in Storable format. This is the default type for IPC::SRLock.

Configuration and Environment

This class defines accessors for these attributes:

lockfile

Path to the file used by fcntl

mode

File mode to use when creating the lock table file. Defaults to 0666

pattern

Regexp used to untaint file names

shmfile

Path to the lock table file

tempdir

Path to the directory where the lock files reside. Defaults to File::Spec->tmpdir

umask

The umask to set when creating the lock table file. Defaults to 0

Subroutines/Methods

BUILDARGS

Extract the "tempdir" attribute value from the config object if one was supplied

list

List the contents of the lock table

_read_shmfile

Read the file containing the lock table from disk

reset

Delete a lock from the lock table

set

Set a lock in the lock table

_write_shmfile

Write the lock table to the disk file

Diagnostics

None

Dependencies

File::DataClass
IPC::SRLock::Base
Moo
Storable
Time::HiRes
Try::Tiny

Incompatibilities

There are no known incompatibilities in this module

Bugs and Limitations

There are no known bugs in this module. Please report problems to the address below. Patches are welcome

Author

Peter Flanigan, <pjfl@cpan.org>

License and Copyright

Copyright (c) 2017 Peter Flanigan. All rights reserved

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic

This program is distributed in the hope that it will be useful, but WITHOUT WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE