NAME

Mail::Box::Locker::POSIX - lock a folder using kernel file-locking

CLASS 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

Initiation

new OPTIONS

OPTION               DEFAULT
expires              1 hour
file                 undef
folder               <obligatory>
log                  'WARNINGS'
method               'DOTLOCK'
timeout              10 seconds
trace                'WARNINGS'

expires => SECONDS

See Mail::Box::Locker::new(expires)

file => FILENAME

See Mail::Box::Locker::new(file)

folder => FOLDER

See Mail::Box::Locker::new(folder)

log => LEVEL

See Mail::Reporter::new(log)

method => METHOD | CLASS

See Mail::Box::Locker::new(method)

timeout => SECONDS|'NOTIMEOUT'

See Mail::Box::Locker::new(timeout)

trace => LEVEL

See Mail::Reporter::new(trace)

The Locker

DESTROY

See Mail::Box::Locker::DESTROY()

filename

See Mail::Box::Locker::filename()

name

See Mail::Box::Locker::name()

Locking

hasLock

See Mail::Box::Locker::hasLock()

isLocked

See Mail::Box::Locker::isLocked()

lock FOLDER

See Mail::Box::Locker::lock()

unlock

See Mail::Box::Locker::unlock()

Logging and Tracing

defaultTrace [LEVEL, [LEVEL]

See Mail::Reporter::defaultTrace()

errors

See Mail::Reporter::errors()

log [LEVEL [,STRINGS]]

See Mail::Reporter::log()

report [LEVEL]

See Mail::Reporter::report()

reportAll [LEVEL]

See Mail::Reporter::reportAll()

trace [LEVEL]

See Mail::Reporter::trace()

warnings

See Mail::Reporter::warnings()

Other Methods

AUTOLOAD

See Mail::Reporter::AUTOLOAD()

inGlobalDestruction

See Mail::Reporter::inGlobalDestruction()

logPriority LEVEL

See Mail::Reporter::logPriority()

logSettings

See Mail::Reporter::logSettings()

notImplemented

See Mail::Reporter::notImplemented()

SEE ALSO

A good start to read is Mail::Box-Overview. More documentation and a mailinglist are available from the project's website at http://perl.overmeer.net/mailbox/.

AUTHOR

Mark Overmeer (mark@overmeer.net) with the help of many.

VERSION

This code is beta, version 2.022.

Copyright (c) 2001-2002 Mark Overmeer. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.