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                lock %{ $cnf{'lock'} };

# fix me, not work in win32, why?
#$SIG{'INT'} = $SIG{'TERM'} = sub { lock %stat; $stat{'done'}++ };

            # fix me, the thread blocks here, why?
            # if I lock %{ $cnf{'lock'} } untill close the $c, things 
+will be OK,
            # but then we can't gain advantage of the multi-threads no
+r the pre-threads
            # design.
            if ( my $r = $c->get_request() ) {