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Breaking the Multi-Colored Box 0.5a (Default branch)
08-27-2008
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Mail::Box::Locker::NFS(3pm) User Contributed Perl Documentation Mail::Box::Locker::NFS(3pm) NAME
Mail::Box::Locker::NFS - lock a folder with a separate file, NFS-safe 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. METHODS
Constructors Mail::Box::Locker::NFS->new(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 $obj->filename([FILENAME]) See "The Locker" in Mail::Box::Locker $obj->folder([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() See "Locking" in Mail::Box::Locker $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::NFS->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::NFS->log([LEVEL [,STRINGS]]) See "Error handling" in Mail::Reporter $obj->logPriority(LEVEL) Mail::Box::Locker::NFS->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 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 2.105, built on May 07, 2012. Website: http://perl.overmeer.net/mailbox/ LICENSE
Copyrights 2001-2012 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 v5.14.2 2012-05-07 Mail::Box::Locker::NFS(3pm)