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:
- AnnoCPAN: Annotated CPAN documentation
- CPAN Ratings
- RT: CPAN's request tracker
<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Test-Memory-Cycle>
- Search CPAN
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.
2006-08-06 | perl v5.10.1 |