DOKK / manpages / debian 11 / libmail-box-perl / Mail::Box::Locker::FcntlLock.3pm.en
Mail::Box::Locker::FcntlLock(3pm) User Contributed Perl Documentation Mail::Box::Locker::FcntlLock(3pm)

Mail::Box::Locker::FcntlLock - lock a folder using File::FcntlLock

 Mail::Box::Locker::FcntlLock
   is a Mail::Box::Locker
   is a Mail::Reporter


 See Mail::Box::Locker

This locker object is uses File::FcntlLock, and was contributed by Jim in Aus. It is close to Mail::Box::Locker::POSIX, but does work on more systems, for instance Darwin.

You will need to install File::FcntlLock separately: there is no dependency to it by the MailBox distribution.

Extends "DESCRIPTION" in Mail::Box::Locker.

Extends "METHODS" in Mail::Box::Locker.

Extends "Constructors" in Mail::Box::Locker.

 -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  FcntlLock
  timeout  Mail::Box::Locker  10
  trace    Mail::Reporter     'WARNINGS'

Extends "Attributes" in Mail::Box::Locker.

$obj->expires( [SECONDS] )
Inherited, see "Attributes" in Mail::Box::Locker
$obj->timeout( [SECONDS] )
Inherited, see "Attributes" in Mail::Box::Locker

Extends "The Locker" in Mail::Box::Locker.

$obj->filename( [$filename] )
Inherited, see "The Locker" in Mail::Box::Locker
$obj->folder( [$folder] )
Inherited, see "The Locker" in Mail::Box::Locker
$obj->name()
Inherited, see "The Locker" in Mail::Box::Locker

Extends "Locking" in Mail::Box::Locker.

$obj->hasLock()
Inherited, see "Locking" in Mail::Box::Locker
$obj->isLocked()
$obj->lock()
$obj->unlock()
Inherited, see "Locking" in Mail::Box::Locker

Extends "Error handling" in Mail::Box::Locker.

$obj->AUTOLOAD()
Inherited, see "Error handling" in Mail::Reporter
$obj->addReport($object)
Inherited, see "Error handling" in Mail::Reporter
$obj->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level, $callback] )
Inherited, see "Error handling" in Mail::Reporter
$obj->errors()
Inherited, see "Error handling" in Mail::Reporter
$obj->log( [$level, [$strings]] )
Inherited, see "Error handling" in Mail::Reporter
$obj->logPriority($level)
Inherited, see "Error handling" in Mail::Reporter
$obj->logSettings()
Inherited, see "Error handling" in Mail::Reporter
$obj->notImplemented()
Inherited, see "Error handling" in Mail::Reporter
$obj->report( [$level] )
Inherited, see "Error handling" in Mail::Reporter
$obj->reportAll( [$level] )
Inherited, see "Error handling" in Mail::Reporter
$obj->trace( [$level] )
Inherited, see "Error handling" in Mail::Reporter
$obj->warnings()
Inherited, see "Error handling" in Mail::Reporter

Extends "Cleanup" in Mail::Box::Locker.

$obj->DESTROY()
Inherited, see "Cleanup" in Mail::Box::Locker

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.
To check whether the filename is used to flock a folder, the file must be opened. Apparently this fails, which does not mean that the folder is locked neither that it is unlocked.
For FcntlLock style locking, a folder it must be opened, which does not succeed for the specified reason.
Tried to lock the folder, but it did not succeed. The error code received from the OS indicates that it will not succeed ever, so we do not need to try again.

This module is part of Mail-Box distribution version 3.009, built on August 18, 2020. Website: http://perl.overmeer.net/CPAN/

Copyrights 2001-2020 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://dev.perl.org/licenses/

2020-08-20 perl v5.30.3