Use curry::weak from curry or Method::WeakCallback.

Those help when your memory leaks are due to subs wrapping method calls as for instance: 

$self->{watcher} = AE::io $fh, 0, sub { $self->_read(@_) };

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In reply to Re: How to avoid closures and memory leaks. by salva
in thread How to avoid closures and memory leaks. by runnerup

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