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package POE::Wheel::Null; |
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=head1 NAME |
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POE::Wheel::Null - POE Wheel that does put()s data nowhere, and sends nothing. |
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=head1 SYNOPSIS |
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As a primary use whenever you would normally... |
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delete $heap->{wheel}; |
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or something equivalent, instead do... |
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$heap->{wheel} = POE::Wheel::Null->new(); |
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to prevent calls to $heap->{wheel} from causing runtime errors in perl. This seems to be a Good Idea (tm) when working with long running programs in the traditional POE way. |
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=head1 DESCRIPTION |
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POE::Wheel::Null creates a wheel which doesn't do anything upon put(), and doesn't send any events to the current session. |
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=cut |
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use strict; |
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use base 'POE::Wheel'; |
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use vars '$VERSION'; |
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$VERSION = '0.01'; |
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=head1 PUBLIC METHODS |
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=over 2 |
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=item new |
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The new() method creates a new null wheel. |
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=cut |
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sub new { |
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my $class = shift; |
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my $self = bless [ |
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POE::Wheel::allocate_wheel_id(), |
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], (ref $class || $class); |
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return $self; |
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} |
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=item ID |
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Returns the wheel unique ID |
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=cut |
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sub ID { |
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return $_[0]->[0]; |
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} |
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=item put |
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Does nothing (intended) |
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=cut |
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sub put { |
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# NULL OP, MUAHAHAHA!!! |
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} |
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sub DESTROY { |
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POE::Wheel::free_wheel_id($_[0]->[0]); |
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} |
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=back |
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=head1 EVENTS AND PARAMETERS |
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None |
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=head1 SEE ALSO |
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POE::Wheel, POE |
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=head1 BUGS |
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Roughly zero. |
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=head1 AUTHOR |
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Jonathan Steinert |
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hachi@cpan.org |
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=head1 LICENSE |
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Copyright 2004 Jonathan Steinert (hachi@cpan.org) |
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This program is free software; you can redistribute it |
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and/or modify it under the same terms as Perl itself. |
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=cut |
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1; |