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Tk::callbacks
Tk::callbacks allows specifying code for Tk to call....
Perl module subroutine callback anonymous subroutine Tk callback
Params::Callbacks
Enable functions to accept blocking callbacks...
Callback::Cleanup
Declare callbacks that clean themselves up...
atfork
Provides an API to register pre & post callbacks when forking & fixes the standard library to be safe for fork + threads...
IO::Event
Tied Filehandles for Nonblocking IO with Object Callbacks...
re::engine::Hooks
Hookable variant of the Perl core regular expression engine...