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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 <undef> log Mail::Reporter 'WARNINGS' method Mail::Box::Locker POSIX posix_file <undef> timeout Mail::Box::Locker 10 seconds trace Mail::Reporter 'WARNINGS' expires => SECONDS file => FILENAME folder => FOLDER log => LEVEL method => STRING|CLASS|ARRAY posix_file => FILENAME Alternative name for "file", especially useful to avoid confusion when the multi-locker is used. 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() $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 2.105, 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::POSIX(3pm)
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