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.\" ========================================================================
.\"
.IX Title "Pinto::Locker 3pm"
.TH Pinto::Locker 3pm "2022-10-16" "perl v5.34.0" "User Contributed Perl Documentation"
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.SH "NAME"
Pinto::Locker \- Manage locks to synchronize concurrent operations
.SH "VERSION"
.IX Header "VERSION"
version 0.14
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
.SH "METHODS"
.IX Header "METHODS"
.SS "lock"
.IX Subsection "lock"
Attempts to get a lock on a Pinto repository.  If the repository is already
locked, we will attempt to contact the current lock holder and make sure they
are really alive.  If not, then we will steal the lock.  If they are, then
we patiently wait until we timeout, which is about 60 seconds.
.SS "unlock"
.IX Subsection "unlock"
Releases the lock on the Pinto repository so that other processes can
get to work.
.PP
In many situations, a Pinto repository is a shared resource.  At any
given moment, multiple processes may be trying to add distributions,
remove packages, or pull files from a mirror.  To keep things working
properly, we can only let one process fiddle with the repository at a
time.  This module manages a lock file for that purpose.
.PP
Supposedly, this does work on \s-1NFS.\s0  But it cannot steal the lock from
a dead process if that process was not running on the same host.
.SH "AUTHOR"
.IX Header "AUTHOR"
Jeffrey Ryan Thalhammer <jeff@stratopan.com>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is copyright (c) 2015 by Jeffrey Ryan Thalhammer.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.