circular

Cycle(3)						User Contributed Perl Documentation						  Cycle(3)

NAME

       Test::Memory::Cycle - Check for memory leaks and circular memory references

VERSION

       Version 1.04

SYNOPSIS

       Perl's garbage collection has one big problem: Circular references can't get cleaned up.  A circular reference can be as simple as two
       reference that refer to each other:

	   my $mom = {
	       name => "Marilyn Lester",
	   };

	   my $me = {
	       name => "Andy Lester",
	       mother => $mom,
	   };
	   $mom->{son} = $me;

       "Test::Memory::Cycle" is built on top of "Devel::Cycle" to give you an easy way to check for these circular references.

	   use Test::Memory::Cycle;

	   my $object = new MyObject;
	   # Do stuff with the object.
	   memory_cycle_ok( $object );

       You can also use "memory_cycle_exists()" to make sure that you have a cycle where you expect to have one.

FUNCTIONS

   "memory_cycle_ok( $reference, $msg )"
       Checks that $reference doesn't have any circular memory references.

   "memory_cycle_exists( $reference, $msg )"
       Checks that $reference does have any circular memory references.

   "weakened_memory_cycle_ok( $reference, $msg )"
       Checks that $reference doesn't have any circular memory references, but unlike "memory_cycle_ok" this will also check for weakened cycles
       produced with Scalar::Util's "weaken".

   "weakened_memory_cycle_exists( $reference, $msg )"
       Checks that $reference does have any circular memory references, but unlike "memory_cycle_exists" this will also check for weakened cycles
       produced with Scalar::Util's "weaken".

AUTHOR

       Written by Andy Lester, "<andy @ petdance.com>".

BUGS

       Please report any bugs or feature requests to "bug-test-memory-cycle at rt.cpan.org", or through the web interface at
       <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-Memory-Cycle>.  I will be notified, and then you'll automatically be notified of
       progress on your bug as I make changes.

SUPPORT

       You can find documentation for this module with the perldoc command.

	   perldoc Test::Memory::Cycle

       You can also look for information at:

       o   AnnoCPAN: Annotated CPAN documentation

	   <http://annocpan.org/dist/Test-Memory-Cycle>

       o   CPAN Ratings

	   <http://cpanratings.perl.org/d/Test-Memory-Cycle>

       o   RT: CPAN's request tracker

	   <http://rt.cpan.org/NoAuth/Bugs.html?Dist=Test-Memory-Cycle>

       o   Search CPAN

	   <http://search.cpan.org/dist/Test-Memory-Cycle>

ACKNOWLEDGEMENTS

       Thanks to the contributions of Stevan Little, and to Lincoln Stein for writing Devel::Cycle.

COPYRIGHT

       Copyright 2006, Andy Lester, All Rights Reserved.

       You may use, modify, and distribute this package under the same terms as Perl itself.

perl v5.16.3							    2006-08-07								  Cycle(3)