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Mail::Box::Locker::POSIX(3pm) User Contributed Perl Documentation Mail::Box::Locker::POSIX(3pm)
NAME
Mail::Box::Locker::POSIX - lock a folder using kernel file-locking
INHERITANCE
Mail::Box::Locker::POSIX
is a Mail::Box::Locker
is a Mail::Reporter
SYNOPSIS
See Mail::Box::Locker
DESCRIPTION
This locker object is created by the folder to get an exclusive lock on the file which
contains the data using the kernel's POSIX facilities. This lock is created on a separate
file-handle to the folder file, so not the handle which is reading. Not all platforms
support POSIX locking.
METHODS
Constructors
Mail::Box::Locker::POSIX->new(OPTIONS)
Option --Defined in --Default
expires Mail::Box::Locker 1 hour
file Mail::Box::Locker undef
folder Mail::Box::Locker <required>
log Mail::Reporter 'WARNINGS'
method Mail::Box::Locker POSIX
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
$obj->filename([FILENAME])
See "The Locker" in Mail::Box::Locker
$obj->folder
See "The Locker" in Mail::Box::Locker
$obj->name
See "The Locker" in Mail::Box::Locker
Locking
$obj->hasLock
See "Locking" in Mail::Box::Locker
$obj->isLocked
$obj->lock
$obj->unlock
See "Locking" in Mail::Box::Locker
Error handling
$obj->AUTOLOAD
See "Error handling" in Mail::Reporter
$obj->addReport(OBJECT)
See "Error handling" in Mail::Reporter
$obj->defaultTrace([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])
Mail::Box::Locker::POSIX->defaultTrace([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])
See "Error handling" in Mail::Reporter
$obj->errors
See "Error handling" in Mail::Reporter
$obj->log([LEVEL [,STRINGS]])
Mail::Box::Locker::POSIX->log([LEVEL [,STRINGS]])
See "Error handling" in Mail::Reporter
$obj->logPriority(LEVEL)
Mail::Box::Locker::POSIX->logPriority(LEVEL)
See "Error handling" in Mail::Reporter
$obj->logSettings
See "Error handling" in Mail::Reporter
$obj->notImplemented
See "Error handling" in Mail::Reporter
$obj->report([LEVEL])
See "Error handling" in Mail::Reporter
$obj->reportAll([LEVEL])
See "Error handling" in Mail::Reporter
$obj->trace([LEVEL])
See "Error handling" in Mail::Reporter
$obj->warnings
See "Error handling" in Mail::Reporter
Cleanup
$obj->DESTROY
See "Cleanup" in Mail::Box::Locker
$obj->inGlobalDestruction
See "Cleanup" in Mail::Reporter
DIAGNOSTICS
Warning: Folder $folder already lockf'd
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.
Error: Unable to check lock file $filename for $folder: $!
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.
Error: Unable to open POSIX lock file $filename for $folder: $!
For POSIX style locking, a folder it must be opened, which does not succeed for the
specified reason.
Error: Will never get a POSIX lock at $filename for $folder: $!
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.
SEE ALSO
This module is part of Mail-Box distribution version 2.082, built on April 28, 2008.
Website: http://perl.overmeer.net/mailbox/
LICENSE
Copyrights 2001-2008 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
perl v5.10.0 2008-04-28 Mail::Box::Locker::POSIX(3pm)
Generated by $Id: phpMan.php,v 4.49 2006/02/26 13:18:18 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2012-05-24 17:14 @38.107.179.239 Crawled by CCBot/1.0 (+http://www.commoncrawl.org/bot.html)