/ 
Mail-Box-2.062
River stage one • 8 direct dependents • 8 total dependents
/ Mail::Box::Locker::Multi

NAME

Mail::Box::Locker::Multi - lock a folder in all ways which work

INHERITANCE

Mail::Box::Locker::Multi
  is a Mail::Box::Locker
  is a Mail::Reporter

SYNOPSIS

See Mail::Box::Locker

DESCRIPTION

The ::Multi locker locks a folder in each way it can. This way, the chance is highest that any other program will leave the folder alone during our access to it.

NFS-lock and Flock are tried. More may be added when the ways to lock are extended. DotLock overlaps with NFS-lock, but NFS-lock is safer, so that version is preferred.

METHODS

Constructors

Mail::Box::Locker::Multi->new(OPTIONS)

    Option   Defined in       Default       
expires  L<Mail::Box::Locker>  1 hour        
file     L<Mail::Box::Locker>  undef         
folder   L<Mail::Box::Locker>  <required>    
log      L<Mail::Reporter>  C<'WARNINGS'> 
method   L<Mail::Box::Locker>  C<'MULTI'>    
timeout  L<Mail::Box::Locker>  10 seconds    
trace    L<Mail::Reporter>  C<'WARNINGS'> 
use                       <all possible>

    . expires SECONDS

    . file FILENAME

    . folder FOLDER

    . log LEVEL

    . method STRING|CLASS|ARRAY

    . timeout SECONDS|'NOTIMEOUT'

    . trace LEVEL

    . use ARRAY

      Array of locker types and locker objects to be used to lock one folder. The type names are converted into objects.

      Some locking types are not available on some platforms, so they will not be excluded from the default list (NFS POSIX Flock).

    Example: using a subset of multi-lockers

    my $locker = Mail::Box::Locker::Multy->new(use => ['DOTLOCK','FLOCK']);

The Locker

$obj->filename([FILENAME])

$obj->folder

$obj->lockers

    Returns a list with all locker objects used by this object.

$obj->name

Locking

$obj->hasLock

$obj->isLocked

$obj->lock(FOLDER)

$obj->unlock

Error handling

$obj->AUTOLOAD

$obj->addReport(OBJECT)

$obj->defaultTrace([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])

Mail::Box::Locker::Multi->defaultTrace([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])

$obj->errors

$obj->log([LEVEL [,STRINGS]])

Mail::Box::Locker::Multi->log([LEVEL [,STRINGS]])

$obj->logPriority(LEVEL)

Mail::Box::Locker::Multi->logPriority(LEVEL)

$obj->logSettings

$obj->notImplemented

$obj->report([LEVEL])

$obj->reportAll([LEVEL])

$obj->trace([LEVEL])

$obj->warnings

Cleanup

$obj->DESTROY

$obj->inGlobalDestruction

DIAGNOSTICS

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.

REFERENCES

See the MailBox website at http://perl.overmeer.net/mailbox/ for more details.

COPYRIGHTS

Distribution version 2.062. Written by Mark Overmeer (mark@overmeer.net). See the ChangeLog for other contributors.

Copyright (c) 2001-2003 by the author(s). All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.