1POE::Resource(3)      User Contributed Perl Documentation     POE::Resource(3)
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NAME

6       POE::Resource - internal resource managers for POE::Kernel
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SYNOPSIS

9       Varies, although most POE::Resource subclasses do not have public APIs.
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DESCRIPTION

12       POE manages several types of information internally.  Its Resource
13       classes are mix-ins designed to manage those types of information
14       behind tidy, mostly private interfaces.  This was done to facilitate
15       testing and a conversion to C without the need to port POE::Kernel all
16       at once.
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18       POE::Resource subclasses are generally different from one another, but
19       there are some similarities to note.
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21       Every resource should have an initializer and finalizer method.
22       Initializers set up initial data and link resources into POE::Kernel.
23       Finalizers clean up any remaining data and verify that each resource
24       subsystem was left in a consistent state.
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26       One common theme in resource implementations is that they don't need to
27       perform much error checking, if any.  Resource methods are used
28       internally by POE::Kernel and/or POE::API classes, so it's up to them
29       to ensure correct usage.
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31       Resource methods follow the naming convention _data_???_activity, where
32       ??? is an abbreviation for the type of resource it belongs to:
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34         POE::Resource::Events      _data_ev_initialize
35         POE::Resource::FileHandles _data_handle_initialize
36         POE::Resource::Signals     _data_sig_initialize
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38       Finalizer methods end in "_finalize".
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40         _data_ev_finalize
41         _data_handle_finalize
42         _data_sig_finalize
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44       Finalizers return true if a resource shut down cleanly, or false if
45       there were inconsistencies or leaks during end-of-run checking.  The
46       t/res/*.t tests rely on these return values.
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SEE ALSO

49       POE::Resource::Aliases, POE::Resource::Events, POE::Resource::Extrefs,
50       POE::Resource::FileHandles, POE::Resource::SIDs,
51       POE::Resource::Sessions, POE::Resource::Signals
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53       Also see "Resources" in POE::Kernel for for public information about
54       POE resources.
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BUGS

57       None known.
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AUTHORS & LICENSING

60       Please see POE for more information about its authors, contributors,
61       and licensing.
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65perl v5.12.1                      2010-04-03                  POE::Resource(3)