I believe you meant to say: 
my $w;
sub {
...
    $w = AnyEvent->timer(
    ...
}

[download]
ie: you want $w outside of builder

In reply to Re^2: PSGI, Plack, Twiggy, AnyEvent and SockJS... I need help by Anonymous Monk
in thread PSGI, Plack, Twiggy, AnyEvent and SockJS... I need help by xtpu2

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