1Cycle(3)              User Contributed Perl Documentation             Cycle(3)
2
3
4

NAME

6       Test::Memory::Cycle - Check for memory leaks and circular memory
7       references
8

VERSION

10       Version 1.04
11

SYNOPSIS

13       Perl's garbage collection has one big problem: Circular references
14       can't get cleaned up.  A circular reference can be as simple as two
15       reference that refer to each other:
16
17           my $mom = {
18               name => "Marilyn Lester",
19           };
20
21           my $me = {
22               name => "Andy Lester",
23               mother => $mom,
24           };
25           $mom->{son} = $me;
26
27       "Test::Memory::Cycle" is built on top of "Devel::Cycle" to give you an
28       easy way to check for these circular references.
29
30           use Test::Memory::Cycle;
31
32           my $object = new MyObject;
33           # Do stuff with the object.
34           memory_cycle_ok( $object );
35
36       You can also use "memory_cycle_exists()" to make sure that you have a
37       cycle where you expect to have one.
38

FUNCTIONS

40   "memory_cycle_ok( $reference, $msg )"
41       Checks that $reference doesn't have any circular memory references.
42
43   "memory_cycle_exists( $reference, $msg )"
44       Checks that $reference does have any circular memory references.
45
46   "weakened_memory_cycle_ok( $reference, $msg )"
47       Checks that $reference doesn't have any circular memory references, but
48       unlike "memory_cycle_ok" this will also check for weakened cycles
49       produced with Scalar::Util's "weaken".
50
51   "weakened_memory_cycle_exists( $reference, $msg )"
52       Checks that $reference does have any circular memory references, but
53       unlike "memory_cycle_exists" this will also check for weakened cycles
54       produced with Scalar::Util's "weaken".
55

AUTHOR

57       Written by Andy Lester, "<andy @ petdance.com>".
58

BUGS

60       Please report any bugs or feature requests to "bug-test-memory-cycle at
61       rt.cpan.org", or through the web interface at
62       http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-Memory-Cycle
63       <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-Memory-Cycle>.  I
64       will be notified, and then you'll automatically be notified of progress
65       on your bug as I make changes.
66

SUPPORT

68       You can find documentation for this module with the perldoc command.
69
70           perldoc Test::Memory::Cycle
71
72       You can also look for information at:
73
74       ·   AnnoCPAN: Annotated CPAN documentation
75
76           http://annocpan.org/dist/Test-Memory-Cycle
77           <http://annocpan.org/dist/Test-Memory-Cycle>
78
79       ·   CPAN Ratings
80
81           http://cpanratings.perl.org/d/Test-Memory-Cycle
82           <http://cpanratings.perl.org/d/Test-Memory-Cycle>
83
84       ·   RT: CPAN's request tracker
85
86           http://rt.cpan.org/NoAuth/Bugs.html?Dist=Test-Memory-Cycle
87           <http://rt.cpan.org/NoAuth/Bugs.html?Dist=Test-Memory-Cycle>
88
89       ·   Search CPAN
90
91           http://search.cpan.org/dist/Test-Memory-Cycle
92           <http://search.cpan.org/dist/Test-Memory-Cycle>
93

ACKNOWLEDGEMENTS

95       Thanks to the contributions of Stevan Little, and to Lincoln Stein for
96       writing Devel::Cycle.
97

99       Copyright 2006, Andy Lester, All Rights Reserved.
100
101       You may use, modify, and distribute this package under the same terms
102       as Perl itself.
103
104
105
106perl v5.12.0                      2006-08-07                          Cycle(3)
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