Name DSLI Description Info

Tie::DB_FileLock Rdpr Locking access to Berkeley DB 1.x. JMV

# Tie::FileLock.pm              1/10/2000
# John M Vinopal        jmv@cpan.org

#
# Copyright (C) 1998-2000, John M Vinopal, All Rights Reserved. # This program is free software. Permission is granted to copy # and modify this program so long as this copyright notice is # preserved. This software is distributed without warranty. # You can redistribute it and/or modify it under the same terms # as Perl itself.
#

DESCRIPTION

        Module DB_File allows perl to tie hashes to on-disk dbm
        files, but fails to provide any method by which the hashes
        might be locked, providing exclusive access or preventing
        page-level collisions.  Tie::DB_FileLock extends DB_File,
        providing a locking layer using flock().

        Unlike Tie::DB_Lock, Tie::DB_FileLock does not duplicate
        files to allow concurrent access for readers and writers.
        Tie::DB_FileLock is therefore suitable for large dbms with
        relatively short locking periods.

        DB_File::Lock is another option, a lightweight wrapper
        around DB_File using an external lockfile.
        See the POD documentation for more information.

PREREQUISITES

Perl 5.004 or greater.
Module DB_File (1.65 through 1.820 should work).

BUILDING THE MODULE

Tie::DB_FileLock is all perl, no compilation.

perl Makefile.PL
make
make test

INSTALLATION

make install

FEEDBACK

How to report a problem with Tie::DB_FileLock.

To help me help you, I need of the following information:

The version of Perl and the operating system name and version you are running. The command 'perl -V' should provide everything.
The version of Tie::DB_FileLock you have installed. If you've installed Tie::DB_FileLock, this one-liner will tell you:

perl -e 'use Tie::DB_FileLock; print "V: $Tie::DB_FileLock::VERSION\n"'

Otherwise search DB_FileLock.pm for a line like this:

$VERSION = 'X.XX';

3. The error message(s) generated or a concise description of the problem.

4. Finally if this is a bug, a fix or a small example of the bug.

CHANGES

See the Changes file.

John M Vinopal <jmv@cpan.org>