GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  MAIL::BOX::LOCKER::NFS (3)

.ds Aq ’

NAME

Mail::Box::Locker::NFS - lock a folder with a separate file, NFS-safe

CONTENTS

INHERITANCE



 Mail::Box::Locker::NFS
   is a Mail::Box::Locker
   is a Mail::Reporter



SYNOPSIS



 See Mail::Box::Locker



DESCRIPTION

Like the ::DotLock locker, but then in an NFS-safe fashion. Over NFS, the creation of a file is not atomic. The ::DotLock locker depends on an atomic open system call, hence in not usable to lock a folder which accessed over NFS. The ::NFS locker is therefore more complicated (so therefore slower), but will work for NFS --and for local disks as well.

See documentation in the base class.

METHODS

See documentation in the base class.

    Constructors

See documentation in the base class.
Mail::Box::Locker::NFS-><B>newB>(OPTIONS)


 -Option --Defined in       --Default
  expires  Mail::Box::Locker  1 hour
  file     Mail::Box::Locker  undef
  folder   Mail::Box::Locker  <undef>
  log      Mail::Reporter     WARNINGS
  method   Mail::Box::Locker  NFS
  timeout  Mail::Box::Locker  10 seconds
  trace    Mail::Reporter     WARNINGS



expires => SECONDS
file => FILENAME
folder => FOLDER
log => LEVEL
method => STRING|CLASS|ARRAY
timeout => SECONDS|’NOTIMEOUT
trace => LEVEL

    The Locker

See documentation in the base class.
$obj-><B>filenameB>([FILENAME]) See The Locker in Mail::Box::Locker
$obj-><B>folderB>([FOLDER]) See The Locker in Mail::Box::Locker
$obj-><B>nameB>() See The Locker in Mail::Box::Locker

    Locking

See documentation in the base class.
$obj-><B>hasLockB>() See Locking in Mail::Box::Locker
$obj-><B>isLockedB>() See Locking in Mail::Box::Locker
$obj-><B>lockB>()
$obj-><B>unlockB>() See Locking in Mail::Box::Locker

    Error handling

See documentation in the base class.
$obj-><B>AUTOLOADB>() See Error handling in Mail::Reporter
$obj-><B>addReportB>(OBJECT) See Error handling in Mail::Reporter
$obj-><B>defaultTraceB>([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])
Mail::Box::Locker::NFS-><B>defaultTraceB>([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK]) See Error handling in Mail::Reporter
$obj-><B>errorsB>() See Error handling in Mail::Reporter
$obj-><B>logB>([LEVEL [,STRINGS]])
Mail::Box::Locker::NFS-><B>logB>([LEVEL [,STRINGS]]) See Error handling in Mail::Reporter
$obj-><B>logPriorityB>(LEVEL)
Mail::Box::Locker::NFS-><B>logPriorityB>(LEVEL) See Error handling in Mail::Reporter
$obj-><B>logSettingsB>() See Error handling in Mail::Reporter
$obj-><B>notImplementedB>() See Error handling in Mail::Reporter
$obj-><B>reportB>([LEVEL]) See Error handling in Mail::Reporter
$obj-><B>reportAllB>([LEVEL]) See Error handling in Mail::Reporter
$obj-><B>traceB>([LEVEL]) See Error handling in Mail::Reporter
$obj-><B>warningsB>() See Error handling in Mail::Reporter

    Cleanup

See documentation in the base class.
$obj-><B>DESTROYB>() See Cleanup in Mail::Box::Locker

DIAGNOSTICS

Warning: Folder $folder already locked over nfs Do not try to lock the folder when the application already has the lock: it will give you dead-locks.
Error: Package $package does not implement $method. Fatal error: the specific package (or one of its superclasses) does not implement this method where it should. This message means that some other related classes do implement this method however the class at hand does not. Probably you should investigate this and probably inform the author of the package.
Warning: Removed expired lockfile $filename. A lock file was found which was older than the expiration period as specified with new(timeout). The lock file was successfully removed.
Error: Unable to remove expired lockfile $lockfile: $! A lock file was found which was older than the expiration period as specified with the new(timeout) option. It is impossible to remove that lock file, so we need to wait until it vanishes by some external cause.

SEE ALSO

This module is part of Mail-Box distribution version 2.109, built on August 19, 2013. Website: http://perl.overmeer.net/mailbox/

LICENSE

Copyrights 2001-2013 by [Mark Overmeer]. For other contributors see ChangeLog.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://www.perl.com/perl/misc/Artistic.html

Search for    or go to Top of page |  Section 3 |  Main Index


perl v5.20.3 MAIL::BOX::LOCKER::NFS (3) 2013-08-19

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.