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Michael Schilli > Log-Log4perl-1.44 > Log::Log4perl::Util::Semaphore



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Source   Latest Release: Log-Log4perl-1.49


Log::Log4perl::Util::Semaphore - Easy to use semaphores


    use Log::Log4perl::Util::Semaphore;
    my $sem = Log::Log4perl::Util::Semaphore->new( key => "abc" );

      # ... critical section 

    $sem->semset( uid  => (getpwnam("hugo"))[2], 
                  gid  => 102,
                  mode => 0644


Log::Log4perl::Util::Semaphore provides the synchronisation mechanism for the appender in Log4perl, but can be used independently of Log4perl.

As a convenience, the uid field accepts user names as well, which it translates into the corresponding uid by running getpwnam.


Copyright 2002-2013 by Mike Schilli <> and Kevin Goess <>.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.


Please contribute patches to the project on Github:

Send bug reports or requests for enhancements to the authors via our

MAILING LIST (questions, bug reports, suggestions/patches):

Authors (please contact them via the list above, not directly): Mike Schilli <>, Kevin Goess <>

Contributors (in alphabetical order): Ateeq Altaf, Cory Bennett, Jens Berthold, Jeremy Bopp, Hutton Davidson, Chris R. Donnelly, Matisse Enzer, Hugh Esco, Anthony Foiani, James FitzGibbon, Carl Franks, Dennis Gregorovic, Andy Grundman, Paul Harrington, Alexander Hartmaier David Hull, Robert Jacobson, Jason Kohles, Jeff Macdonald, Markus Peter, Brett Rann, Peter Rabbitson, Erik Selberg, Aaron Straup Cope, Lars Thegler, David Viner, Mac Yang.

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